# Classroom Shortage in Region IV-A, 2023–2026: Rizal, Cavite

Region IV-A lacked 31,010 classrooms in 2023, the most of any region. Rizal gets SBP 2026 classrooms for 3.7% of its shortage, Cavite for 42.3%.

This is the Markdown copy of [Classroom Shortage in Region IV-A, 2023–2026: Rizal, Cavite](https://nash.com.ph/blog/classroom-shortage-region-4a-calabarzon), an article on the NASH Reviewer Blog by Mark Anthony Llego, published Oct 28, 2026, updated Nov 4, 2026. Topics: DepEd data, School resources. NASH Reviewer is an independent practice platform not affiliated with DepEd, BHROD, or NEAP.

Region IV-A (CALABARZON, often searched as Region 4A) lacked 31,010 classrooms in 2023, according to DepEd's classroom shortage data as published in the EDCOM II classroom construction dashboard. That is 18.7% of the country's shortage of 165,443 classrooms, the largest of the 18 regions: nearly one classroom in five that the country lacks is in Cavite, Laguna, Batangas, Rizal or Quezon. The region is short 10.1 classrooms for every 1,000 learners enrolled in SY 2024-25, against 7.4 nationally, the third highest rate among the regions, and 63.2% of its public schools have a shortage.

The shortage is heaviest on the eastern and southern edges of Metro Manila, and the School Building Program (SBP) 2026 meets it very unevenly. Rizal province, with the City of Antipolo, is short 8,516 classrooms and has SBP 2026 classrooms for 3.7% of them; the Antipolo City division's 40 classrooms cover 1.5% of its shortage of 2,663, the lowest share in the region. Cavite, short 8,832, has 3,736 classrooms on the list, more than half of the region's 6,470. Across the region, 75.4% of the 2026 classrooms are PSIP III public-private partnership classrooms, still for bidding.

The figures below, from the cleaned school-level data behind the dashboard, cover Region IV-A's 23 divisions, five provinces and Lucena, down to its 142 cities and municipalities. Every file is listed on the [EDCOM II classroom data page](https://nash.com.ph/edcom-classroom-data).

## Key findings

- Region IV-A lacked 31,010 classrooms in 2023, the most of any region and 18.7% of the national shortage, at 10.1 per 1,000 learners against 7.4 nationally.
- 16 of the region's 23 divisions are above the national rate, led by San Pedro City at 20.4 classrooms short per 1,000 learners.
- Rizal province, with Antipolo, is short 8,516 classrooms and has 314 on the SBP 2026 list (3.7%); the Antipolo City division's coverage, 1.5%, is the lowest in the region.
- Cavite province has 3,736 of the region's 6,470 SBP 2026 classrooms, and PSIP III lines make up 75.4% of the region's list.
- 490 schools (13.7%) held classes in two or more shifts in SY 2024-25, against 4.3% nationally, and they enroll 37.1% of the region's learners.
- The shortage sits in big gaps: 790 schools short by 10 or more classrooms hold 84.3% of it, and Antipolo National High School alone is short 193.
- 1,369 schools (38.6%) report a building for condemnation or demolition, against 28.9% nationally.

## Region IV-A against the country

The table sets Region IV-A beside the country on the same definitions.

| Indicator                                               |   Region IV-A |   Philippines |
|:--------------------------------------------------------|--------------:|--------------:|
| Schools in the 2023 shortage data                       |         3,552 |        47,659 |
| Schools with a classroom shortage                       |         63.2% |         54.2% |
| Classroom shortage (2023)                               |        31,010 |       165,443 |
| Shortage per 1,000 learners                             |          10.1 |           7.4 |
| SBP 2026 classrooms                                     |         6,470 |        32,419 |
| SBP 2026 classrooms as a share of the shortage          |         20.9% |         19.6% |
| Schools with a shortage that get any SBP 2026 classroom |         17.0% |         13.3% |
| Schools with two or more shifts (SY 2024-25)            |         13.7% |          4.3% |
| Median learners per classroom, elementary               |          31.4 |          24.9 |
| Last Mile Schools                                       |          8.8% |         18.5% |
| Schools using makeshift rooms (2023)                    |         21.6% |         29.0% |
| Schools with a building for condemnation or demolition  |         38.6% |         28.9% |

Region IV-A is above the country on almost every row that measures strain. It differs most on shifts, 13.7% of schools against 4.3%, and on crowding: the median elementary school has 31.4 learners per classroom against 24.9. On the 2026 list it is close to the country, with classrooms equal to 20.9% of its shortage against 19.6%, and 20.0% of the national list for 18.7% of the national shortage. Two rows run the other way: only 8.8% of its schools are Last Mile Schools and 21.6% use makeshift rooms, both below the national shares.

Kindergarten to Grade 10 makes up 28,723 classrooms of the shortage, and senior high school only 2,287 (7.4%). Urban schools carry 78.3% of the shortage, more than the 60.2% urban share nationally, and they are short 11.6 classrooms per 1,000 learners against 6.8 in rural schools. The region's 1,382 urban schools are fewer than its 2,147 rural ones, yet they hold most of the gap. Meanwhile, 960 schools report more Kindergarten to Grade 10 classrooms than they need, 3,359 in all, about a tenth of the shortage and none of it movable to the schools that lack rooms.

## Classroom shortage by division in Region IV-A

Region IV-A has 23 schools divisions in these data: five provincial divisions, Cavite, Laguna, Batangas, Rizal and Quezon, and 18 city divisions. The chart ranks them by the shortage per 1,000 learners.

![Horizontal bar chart of the 2023 classroom shortage per 1,000 learners in Region IV-A's 23 divisions. San Pedro City is highest at 20.4 (1,056 classrooms), followed by Tayabas City at 15.7, Antipolo City at 15.1 (2,663) and Imus City at 15.0; Rizal, with the largest count, 5,853, is at 12.9 and Cavite at 9.3; Batangas City and Lipa City are lowest at 3.2 and 3.1. Sixteen divisions are above the national line of 7.4.](https://nash.com.ph/blog/_astro/classroom-shortage-region-4a-calabarzon-divisions.BRsMcxeD_1zXPWT.webp)

*Figure 1. Classroom shortage per 1,000 learners by division, Region IV-A, 2023 shortage and SY 2024-25 learners. Chart: © 2026 Mark Anthony Llego, NASH Reviewer. [Download the full-resolution chart (PNG)](https://nash.com.ph/blog/charts/deped-data/classroom-shortage-region-4a-calabarzon-divisions.png).*

San Pedro City stands alone at the top, short 20.4 classrooms per 1,000 learners, about twice the regional rate of 10.1. Below it, between 11.0 and 15.7, sit Tayabas City in Quezon and a band of divisions around Metro Manila: Antipolo City and Rizal, the Cavite cities of Imus, Bacoor, Dasmarinas and General Trias, and Laguna with its cities of Sta. Rosa, Cabuyao and Binan. The Batangas provincial division and the cities of Tanauan, Batangas and Lipa sit at the bottom with Cavite City, all well under the national rate.

By count, Rizal, the provincial division, is the largest, 5,853 classrooms, 18.9% of the region's shortage, followed by Cavite (3,695), Laguna (2,905), Quezon (2,740) and Antipolo City (2,663). A single city division, Antipolo City, with 67 schools, is short almost as many classrooms as the Quezon provincial division with 960.

| Division           |   Schools |   Learners (SY 2024-25) |   Classroom shortage (2023) |   Shortage per 1,000 learners |   Schools with a shortage |   SBP 2026 classrooms |   Coverage |
|:-------------------|----------:|------------------------:|----------------------------:|------------------------------:|--------------------------:|----------------------:|-----------:|
| San Pedro City     |        28 |                  51,675 |                       1,056 |                          20.4 |                     92.9% |                    93 |       8.8% |
| Tayabas City       |        35 |                  21,246 |                         346 |                          15.7 |                    100.0% |                    89 |      25.7% |
| Antipolo City      |        67 |                 176,473 |                       2,663 |                          15.1 |                     79.1% |                    40 |       1.5% |
| Imus City          |        35 |                  73,799 |                       1,108 |                          15.0 |                     85.7% |                    92 |       8.3% |
| Sta. Rosa City     |        28 |                  64,029 |                         951 |                          14.9 |                     92.9% |                    65 |       6.8% |
| Bacoor City        |        43 |                  82,645 |                       1,193 |                          14.4 |                     81.4% |                   115 |       9.6% |
| Dasmarinas City    |        44 |                 118,113 |                       1,642 |                          13.9 |                     90.9% |                   236 |      14.4% |
| General Trias City |        36 |                  81,794 |                       1,125 |                          13.8 |                     94.4% |                   290 |      25.8% |
| Laguna             |       344 |                 213,596 |                       2,905 |                          13.6 |                     72.1% |                   259 |       8.9% |
| Cabuyao City       |        28 |                  54,939 |                         716 |                          13.0 |                     85.7% |                    44 |       6.1% |
| Rizal              |       302 |                 454,493 |                       5,853 |                          12.9 |                     79.8% |                   258 |       4.4% |
| Binan City         |        38 |                  60,618 |                         665 |                          11.0 |                     84.2% |                    61 |       9.2% |
| Sto. Tomas City    |        30 |                  34,071 |                         325 |                           9.5 |                     76.7% |                   149 |      45.8% |
| Cavite             |       328 |                 398,010 |                       3,695 |                           9.3 |                     64.6% |                 2,949 |      79.8% |
| Calamba City       |        73 |                 102,849 |                         932 |                           8.5 |                     89.0% |                   127 |      13.6% |
| Lucena City        |        54 |                  52,865 |                         434 |                           8.2 |                     79.6% |                   201 |      46.3% |
| Quezon             |       960 |                 427,620 |                       2,740 |                           6.4 |                     64.1% |                   391 |      14.3% |
| San Pablo City     |        80 |                  57,933 |                         364 |                           6.3 |                     65.0% |                   295 |      81.0% |
| Tanauan City       |        59 |                  39,230 |                         190 |                           4.8 |                     47.5% |                    90 |      47.4% |
| Batangas           |       733 |                 348,965 |                       1,612 |                           4.6 |                     40.4% |                   431 |      26.7% |
| Cavite City        |        14 |                  18,977 |                          69 |                           3.6 |                     57.1% |                    54 |      78.3% |
| Batangas City      |       108 |                  60,587 |                         191 |                           3.2 |                     37.0% |                    21 |      11.0% |
| Lipa City          |        85 |                  76,570 |                         236 |                           3.1 |                     44.7% |                    84 |      35.6% |

Every school in Tayabas City has a shortage (100.0%), and so do more than nine in ten in San Pedro City, Sta. Rosa City, Dasmarinas City and General Trias City; Batangas City is lowest at 37.0%. Coverage runs from 1.5% in Antipolo City to 81.0% in San Pablo City, and no division has more on the list than its shortage. Rizal, the largest shortage, is covered at 4.4%. The division totals leave out 36 SBP classrooms at two schools that have no division in the data; the regional totals include them.

## Provinces and cities: Cavite, Rizal, Laguna, Quezon, Batangas and Lucena

The PSGC, the Philippine Standard Geographic Code, places Region IV-A's schools in five provinces and one highly urbanized city, Lucena, which stands apart from Quezon. Component cities, Antipolo in Rizal, Dasmariñas, Bacoor and Imus in Cavite, and Calamba and Santa Rosa in Laguna among them, are counted in their provinces here, although each has its own schools division.

| Province or city   |   Cities and municipalities |   Schools |   Classroom shortage (2023) |   Shortage per 1,000 learners |   SBP 2026 classrooms |   Coverage |
|:-------------------|----------------------------:|----------:|----------------------------:|------------------------------:|----------------------:|-----------:|
| Cavite             |                          23 |       500 |                       8,832 |                          11.4 |                 3,736 |      42.3% |
| Rizal              |                          14 |       369 |                       8,516 |                          13.5 |                   314 |       3.7% |
| Laguna             |                          30 |       619 |                       7,589 |                          12.4 |                   964 |      12.7% |
| Quezon             |                          40 |       994 |                       2,964 |                           6.7 |                   480 |      16.2% |
| Batangas           |                          34 |     1,015 |                       2,554 |                           4.6 |                   775 |      30.3% |
| City of Lucena     |                           1 |        55 |                         555 |                           8.7 |                   201 |      36.2% |

Cavite and Rizal carry almost the same shortage, 8,832 and 8,516 classrooms, and Rizal's rate is the highest of any province, 13.5 per 1,000 learners. Their lists could hardly differ more: Cavite has 3,736 SBP 2026 classrooms, 42.3% of its shortage, and Rizal 314, 3.7%. Laguna, short 7,589, has 964 (12.7%). Quezon and Batangas carry smaller shortages at lower rates. Lucena's figure, 555, is larger than the Lucena City division's 434 because the city table also counts Quezon National High School, which stands in Lucena but belongs to the Quezon provincial division.

Among the region's 142 cities and municipalities, the City of Antipolo has the largest shortage, 2,663 classrooms. All 10 of the largest are first-class cities and municipalities in Cavite, Laguna and Rizal:

| City or municipality   | Province or city   | Income class   |   Schools |   Classroom shortage (2023) |   SBP 2026 classrooms |   Coverage |
|:-----------------------|:-------------------|:---------------|----------:|----------------------------:|----------------------:|-----------:|
| City of Antipolo       | Rizal              | 1st            |        68 |                       2,663 |                    56 |       2.1% |
| City of Dasmariñas     | Cavite             | 1st            |        45 |                       1,642 |                   236 |      14.4% |
| Rodriguez              | Rizal              | 1st            |        47 |                       1,462 |                    62 |       4.2% |
| City of Bacoor         | Cavite             | 1st            |        43 |                       1,193 |                   115 |       9.6% |
| City of General Trias  | Cavite             | 1st            |        36 |                       1,125 |                   290 |      25.8% |
| City of Imus           | Cavite             | 1st            |        38 |                       1,108 |                    92 |       8.3% |
| City of San Pedro      | Laguna             | 1st            |        28 |                       1,056 |                    93 |       8.8% |
| City of Santa Rosa     | Laguna             | 1st            |        28 |                         951 |                    65 |       6.8% |
| City of Calamba        | Laguna             | 1st            |        73 |                         932 |                   127 |      13.6% |
| Tanza                  | Cavite             | 1st            |        21 |                         869 |                   448 |      51.6% |

The two Rizal entries stand out: the City of Antipolo has 56 SBP 2026 classrooms (2.1%) and Rodriguez, a municipality short 1,462, has 62 (4.2%). Tanza, Cavite has the highest coverage among the 10, 448 classrooms for 869 (51.6%). Across the region, 22 cities and municipalities with a shortage receive no SBP 2026 classroom, 1,051 classrooms between them; the largest is Morong, Rizal, short 152. Thirteen receive more than their shortage, 603 classrooms beyond it in all. The city table follows the PSGC and the masterlist's own municipality, so it can differ from the division of the same name: the City of Antipolo has 56 classrooms and the Antipolo City division 40, because the rest are at a new school in the city that has no division in the data.

EDCOM II singled out three Cavite towns in its 20 October 2026 news release on the 2026 plan: Maragondon, with 272 classrooms against a shortage of 64; Tanza, 448 against 869; and Naic, 356 against 631. The cleaned data give the same three pairs of figures. Maragondon's list is more than four times its 2023 shortage, while Tanza's and Naic's cover a little over half of shortages many times larger.

## Schools with the largest classroom shortages in Region IV-A

The 10 schools with the largest shortages are among the biggest public schools in the region, each with thousands of learners. Five are in Rizal province, four of them in the Antipolo City division; the other five are in Cavite and Laguna. Together they are short 1,586 classrooms, 5.1% of the region's shortage.

|   School ID | School                                   | Division        | City or municipality   |   Learners (SY 2024-25) |   Learners per classroom |   Classroom shortage (2023) |   SBP 2026 classrooms | Two or more shifts   |
|------------:|:-----------------------------------------|:----------------|:-----------------------|------------------------:|-------------------------:|----------------------------:|----------------------:|:---------------------|
|      301418 | Antipolo National High School            | Antipolo City   | City of Antipolo       |                  11,435 |                     91.5 |                         193 |                     8 | Yes                  |
|      301196 | Imus NHS                                 | Imus City       | City of Imus           |                   9,654 |                     99.5 |                         192 |                     0 | No                   |
|      301222 | Trece Martires City National High School | Cavite          | City of Trece Martires |                  10,819 |                     89.4 |                         163 |                   100 | No                   |
|      301186 | Dasmariñas Integrated High School        | Dasmarinas City | City of Dasmariñas     |                  10,990 |                     53.3 |                         162 |                    20 | Yes                  |
|      109319 | Bagong Nayon I ES                        | Antipolo City   | City of Antipolo       |                   8,909 |                     74.9 |                         161 |                     0 | Yes                  |
|      301227 | Balibago Integrated High School          | Sta. Rosa City  | City of Santa Rosa     |                   5,568 |                     77.3 |                         152 |                     0 | Yes                  |
|      109342 | Sta. Cruz ES                             | Antipolo City   | City of Antipolo       |                  10,226 |                     78.1 |                         147 |                    12 | Yes                  |
|      107888 | Queens Row Elementary School             | Bacoor City     | City of Bacoor         |                   7,986 |                     83.2 |                         141 |                    12 | Yes                  |
|      109327 | Juan Sumulong ES                         | Antipolo City   | City of Antipolo       |                   8,164 |                     75.6 |                         138 |                     0 | Yes                  |
|      109469 | Kasiglahan Village Elementary School     | Rizal           | Rodriguez              |                   8,287 |                     78.2 |                         137 |                     0 | No                   |

Antipolo National High School has the largest shortage in the region, 193 classrooms, for 11,435 learners, and Imus NHS is close behind with 192 and the most crowded rooms in the table, 99.5 learners per classroom. Five of the 10 are on the SBP 2026 list; Trece Martires City National High School has the largest allocation, 100 classrooms, while Imus NHS, Bagong Nayon I ES, Balibago Integrated High School, Juan Sumulong ES and Kasiglahan Village Elementary School have none. Seven of the 10 hold classes in shifts.

The median school with a shortage lacks 5.0 classrooms, against 3.0 nationally, and most of the shortage is in schools with large gaps: the 790 schools short by 10 or more hold 84.3% of it, against 60.8% nationally. The 355 schools with the largest shortages, the top 10% of the region's schools, hold 62.6%, and 230 schools (6.5%) hold half. How these shares are built is explained in [Philippine Classroom Shortage 2023: Where the Gap Is](https://nash.com.ph/blog/classroom-shortage-philippines-2023).

## SBP 2026 classrooms in Region IV-A

The SBP 2026 list has 584 lines for Region IV-A, 6,470 classrooms at 483 schools, the largest list of any region and 20.0% of the national total. Only 1,592 of these classrooms are funded under the General Appropriations Act (GAA) 2026, with PHP 5.52 billion; the other 4,878 are PSIP III classrooms, the third Public-Private Partnership for School Infrastructure Project, still for bidding and without a budget on the list. The chart sets each division's 2023 shortage beside its 2026 classrooms.

![Paired horizontal bars of the 2023 classroom shortage and SBP 2026 classrooms in Region IV-A's 23 divisions. Rizal has 5,853 classrooms of shortage and 258 on the list, Cavite 3,695 and 2,949, Laguna 2,905 and 259, Quezon 2,740 and 391, and Antipolo City 2,663 and 40; Cavite is the only large division whose list comes close to its shortage, and in every division the list is shorter than the shortage.](https://nash.com.ph/blog/_astro/classroom-shortage-region-4a-calabarzon-sbp-2026.uiitOD3F_Z21KG1O.webp)

*Figure 2. 2023 classroom shortage and SBP 2026 classrooms by division, Region IV-A. Chart: © 2026 Mark Anthony Llego, NASH Reviewer. [Download the full-resolution chart (PNG)](https://nash.com.ph/blog/charts/deped-data/classroom-shortage-region-4a-calabarzon-sbp-2026.png).*

Cavite's orange bar is the only long one: 2,949 classrooms, 79.8% of the division's shortage and nearly half of the region's list. Rizal, the longest blue bar, has 258, Laguna 259 and Antipolo City 40. The Cavite city divisions fare far worse than the Cavite provincial division: Dasmarinas City has 236 classrooms for 1,642, Bacoor City 115 for 1,193 and Imus City 92 for 1,108.

| Modality group   |   Lines |   Schools |   Classrooms |   Share of the region's SBP classrooms |
|:-----------------|--------:|----------:|-------------:|---------------------------------------:|
| DPWH             |     109 |       109 |          681 |                                  10.5% |
| LGU              |     119 |       118 |          892 |                                  13.8% |
| DepEd            |      16 |        16 |           19 |                                   0.3% |
| PSIP III (PPP)   |     340 |       259 |        4,878 |                                  75.4% |

PSIP III dominates the region's list: 340 lines at 259 schools with 4,878 classrooms, 75.4% of the total, against half of the list nationally. Local governments implement 892 classrooms (13.8%), the Department of Public Works and Highways (DPWH) 681 (10.5%) and DepEd 19. Because PSIP III is still for bidding, three of every four classrooms on the region's 2026 list wait on a procurement that has not been awarded. [DepEd School Building Program 2026 in Numbers](https://nash.com.ph/blog/deped-school-building-program-2026) covers PSIP III and the other modalities nationally.

The list follows the shortage more closely here than in the country, but reaches few schools. School by school, 4,019 of the region's 2026 classrooms (62.1%) fall within the receiving school's own 2023 shortage, against 53.0% nationally, and 903 (14.0%) go to 91 schools with no 2023 shortage. Yet only 381 of the 2,244 schools with a shortage (17.0%) receive any classroom, and 213 of the 745 schools short by more than 10 (28.6%). Counted this way, the 2026 list meets 13.0% of the region's shortage and leaves 26,991 classrooms unmet. The method is the one used in [Do 2026 Classrooms Go Where the Shortage Is?](https://nash.com.ph/blog/classroom-allocation-vs-shortage-2026).

## Class shifts and crowded classrooms in Region IV-A

Region IV-A has more schools on shifts than any region except NCR. In SY 2024-25, 490 of its 3,575 schools in the enrollment data (13.7%) held classes in two or more shifts, 16 of them in three. They enroll 1,147,058 learners, 37.1% of the region's total. Of the 482 shifting schools in the shortage data, 95.9% had a shortage, and 150 (31.1%) receive SBP 2026 classrooms.

Crowding is the region's other mark. The median school has 31.4 learners per classroom in elementary, 37.1 in junior high and 33.0 in senior high, against 24.9, 32.1 and 30.6 nationally. In 732 schools there are more than 50 learners per classroom, and those schools hold 45.2% of the learners counted, nearly half; bringing each down to 50 would take at least 9,548 classrooms. [Class Shifts and Crowded Classrooms in DepEd Schools](https://nash.com.ph/blog/class-shifting-crowded-classrooms) explains how the 50-learner figure is computed.

The 2023 facilities data add buildings in poor condition to the picture: 1,369 schools (38.6%) report a building for condemnation or demolition, 3,326 buildings in all, against 28.9% of schools nationally. Makeshift rooms are less common than in the country, at 766 schools (21.6%) against 29.0%.

## Last Mile Schools in Region IV-A

Only 311 of the region's schools (8.8%) are Last Mile Schools, schools in geographically isolated, disadvantaged and conflict-affected areas and hardship posts, under half the national share of 18.5%. They hold 545 classrooms of shortage, 1.8% of the region's. Unlike the national pattern, they are slightly less likely to have a shortage than other schools in the region, 59.2% against 63.6%.

They are also less than half as likely to be on the 2026 list, 6.4% against 13.9% of other schools, with 65 classrooms between them; 172 Last Mile Schools with a shortage, 493 classrooms in all, receive none. DepEd's own Last Mile School modality has two lines with 5 classrooms in the region. [Last Mile Schools: Classroom Need and 2026 Allocation](https://nash.com.ph/blog/last-mile-schools-classroom-shortage) gives the national comparison.

## What this means for school heads in Region IV-A

In CALABARZON the classroom problem is one of very large schools on the edge of Metro Manila, so the evidence a school head brings matters as much as the request.

- **Know your school's numbers.** The school table lists, by school ID, the 2023 shortage, learners per classroom, shifts and SBP 2026 lines; download it from the [EDCOM II classroom data page](https://nash.com.ph/edcom-classroom-data).
- **In Rizal and Antipolo, build the case on rates and shifts.** Rizal province is covered at 3.7% and the Antipolo City division at 1.5%. A division short 2,663 classrooms for 176,473 learners can show its need per learner as well as in total.
- **If your school has a PSIP III line, plan for the wait.** Three of every four classrooms on the region's list are PSIP III, still for bidding, so the [school improvement plan](https://nash.com.ph/blog/deped-school-improvement-plan) and the annual implementation plan should cover the years before the rooms are ready.
- **Use the crowding figure.** Learners per classroom, and the 50-learner mark that 732 schools in the region exceed, are easy for a parent, a council member or a division planner to grasp.
- **Bring the LGU in.** Twenty-two cities and municipalities with a shortage, Morong in Rizal the largest, have no 2026 classroom at all. EDCOM II's National Education Plan 2026–2035 recommends a tiered counterparting mechanism for LGUs that considers their income class, and all 10 cities and municipalities with the region's largest shortages are first class.

## How these numbers were made

The data are the cleaned tables behind the EDCOM II classroom construction dashboard: DepEd's 2023 classroom shortage by school, the SBP 2026 masterlist, SY 2024-25 enrollment and class shifts from the Basic Education Information System (BEIS), 2023 school facilities, and school coordinates from the National School Building Inventory (NSBI) for SY 2022-23. [How the EDCOM Classroom Data Was Cleaned](https://nash.com.ph/blog/edcom-classroom-data-cleaned) documents every table and cleaning rule.

A school's shortage is DepEd's 2023 figure for Kindergarten to Grade 10 plus senior high school, counted only where the school lacks classrooms. The shortage per 1,000 learners divides the shortage of schools with SY 2024-25 learners by those learners and multiplies by 1,000. Learners per classroom divide SY 2024-25 learners by 2023 instructional classrooms. A division's coverage is its SBP 2026 classrooms divided by its 2023 shortage. Classrooms within a school's shortage are counted up to the size of that shortage, and any beyond it are counted as beyond. Regions and provinces follow the PSGC, with Lucena as the region's highly urbanized city; divisions are DepEd's schools divisions as the 2023 data record them.

The analysis was done in Python with pandas, and the charts drawn with Matplotlib.

## Limits

The sources span several years: the shortage and facilities are from 2023, enrollment and shifts from SY 2024-25, and the allocations from 2026, so a school's figures may have changed since. The SBP list shows planned classrooms, not finished ones, and most of the region's list is PSIP III, still for bidding. The shortage is DepEd's own estimate, and new, merged or renumbered schools may be missing or counted under a new ID. The divisions are as the 2023 data record them: schools in the cities of Carmona and Calaca are counted in the Cavite and Batangas divisions, not in divisions of their own. Division totals of SBP classrooms leave out the two schools with no division in the data. These are descriptive figures: they show where the shortage and the 2026 classrooms are, not why.

## Frequently asked questions

### How big is the classroom shortage in Region IV-A?

DepEd's 2023 data put Region IV-A's classroom shortage at 31,010 classrooms, 18.7% of the national shortage of 165,443 and the largest of any region. That is 10.1 classrooms per 1,000 learners, against 7.4 nationally, and 63.2% of the region's public schools have a shortage.

### Which province or division in Region IV-A has the biggest classroom shortage?

Among provinces, Cavite, short 8,832 classrooms, with Rizal close behind at 8,516 and the higher rate, 13.5 per 1,000 learners. Among divisions, Rizal is largest by count, 5,853 classrooms, and San Pedro City highest by rate, 20.4. The City of Antipolo has the largest shortage of any city or municipality, 2,663.

### How many classrooms will Region IV-A get under the SBP 2026?

The SBP 2026 masterlist has 6,470 classrooms for Region IV-A on 584 lines at 483 schools: 1,592 funded under the GAA 2026 with PHP 5.52 billion and 4,878 PSIP III classrooms still for bidding. They equal 20.9% of the region's 2023 shortage, against 19.6% nationally. The list is a plan; it does not mean the classrooms are built.

### Why does Cavite get so many more SBP 2026 classrooms than Rizal?

The data show the allocation, not the reasons for it. Cavite province has 3,736 classrooms on the list for a shortage of 8,832 (42.3%); Rizal has 314 for 8,516 (3.7%). Within Cavite the list is also uneven: the Cavite provincial division is covered at 79.8%, while Imus City is at 8.3% and Bacoor City at 9.6%.

## Download the data and cite this post

The cleaned EDCOM II classroom data behind this series are free to download for personal study; to reuse them, email [support@nash.com.ph](mailto:support@nash.com.ph) for written permission first. [How the EDCOM Classroom Data Was Cleaned](https://nash.com.ph/blog/edcom-classroom-data-cleaned) explains every table and cleaning rule. The files are at data.nash.com.ph: start with the [README](https://data.nash.com.ph/edcom-classroom-data/v1.1/README.md), then the [school table](https://data.nash.com.ph/edcom-classroom-data/v1.1/schools.parquet) (Parquet, or [CSV](https://data.nash.com.ph/edcom-classroom-data/v1.1/schools.csv.gz)), the [School Building Program lines](https://data.nash.com.ph/edcom-classroom-data/v1.1/sbp_projects.csv.gz) (CSV), the [city and municipality table](https://data.nash.com.ph/edcom-classroom-data/v1.1/lgu_summary.csv.gz) (CSV), and every table for [Stata](https://data.nash.com.ph/edcom-classroom-data/v1.1/classroom_tables_stata.zip) and [SPSS](https://data.nash.com.ph/edcom-classroom-data/v1.1/classroom_tables_spss.zip). Every regional figure in this report can be computed from the school table, filtered to Region IV-A by `deped_region`.

Every file, with its rows, columns and checksum, is listed on the [EDCOM II classroom data page](https://nash.com.ph/edcom-classroom-data). To cite the data: Llego, M. A. (2026). *EDCOM II classroom construction dashboard data, cleaned, version 1.1*. NASH Reviewer. https://nash.com.ph/edcom-classroom-data

To cite this post: Llego, M. A. (2026, October 28). *Classroom shortage in Region IV-A, 2023–2026: Rizal, Cavite*. NASH Reviewer Blog. https://nash.com.ph/blog/classroom-shortage-region-4a-calabarzon

## References

- Llego, M. A. (2026). *EDCOM II classroom construction dashboard data, cleaned, version 1.1* [Data set]. NASH Reviewer. https://nash.com.ph/edcom-classroom-data
- Second Congressional Commission on Education (EDCOM II). (2026, October 20). *Put classrooms where they're needed most, EDCOM 2 tells DepEd* [News release]. https://edcom2.gov.ph/put-classrooms-where-theyre-needed-most-edcom-2-tells-deped/
- Second Congressional Commission on Education (EDCOM II). (2026). *National Education Plan 2026–2035* (Year Three report).

## More in this series

- [How the EDCOM Classroom Data Was Cleaned](https://nash.com.ph/blog/edcom-classroom-data-cleaned)
- [Philippine Classroom Shortage 2023: Where the Gap Is](https://nash.com.ph/blog/classroom-shortage-philippines-2023)
- [DepEd School Building Program 2026 in Numbers](https://nash.com.ph/blog/deped-school-building-program-2026)
- [Do 2026 Classrooms Go Where the Shortage Is?](https://nash.com.ph/blog/classroom-allocation-vs-shortage-2026)
- [Classroom Allocation by LGU Income Class, 2026](https://nash.com.ph/blog/classroom-allocation-lgu-income-class)
- [Class Shifts and Crowded Classrooms in DepEd Schools](https://nash.com.ph/blog/class-shifting-crowded-classrooms)
- [Last Mile Schools: Classroom Need and 2026 Allocation](https://nash.com.ph/blog/last-mile-schools-classroom-shortage)
- Regional reports: [NCR](https://nash.com.ph/blog/classroom-shortage-ncr), [CAR](https://nash.com.ph/blog/classroom-shortage-car), [Region I](https://nash.com.ph/blog/classroom-shortage-region-1-ilocos), [Region II](https://nash.com.ph/blog/classroom-shortage-region-2-cagayan-valley), [Region III](https://nash.com.ph/blog/classroom-shortage-region-3-central-luzon), [Region IV-A](https://nash.com.ph/blog/classroom-shortage-region-4a-calabarzon), [MIMAROPA](https://nash.com.ph/blog/classroom-shortage-mimaropa), [Region V](https://nash.com.ph/blog/classroom-shortage-region-5-bicol), [Region VI](https://nash.com.ph/blog/classroom-shortage-region-6-western-visayas), [NIR](https://nash.com.ph/blog/classroom-shortage-negros-island-region), [Region VII](https://nash.com.ph/blog/classroom-shortage-region-7-central-visayas), [Region VIII](https://nash.com.ph/blog/classroom-shortage-region-8-eastern-visayas), [Region IX](https://nash.com.ph/blog/classroom-shortage-region-9-zamboanga-peninsula), [Region X](https://nash.com.ph/blog/classroom-shortage-region-10-northern-mindanao), [Region XI](https://nash.com.ph/blog/classroom-shortage-region-11-davao), [Region XII](https://nash.com.ph/blog/classroom-shortage-region-12-soccsksargen), [Caraga](https://nash.com.ph/blog/classroom-shortage-region-13-caraga), [BARMM](https://nash.com.ph/blog/classroom-shortage-barmm)
- Rankings and deep dives: [Congressional districts](https://nash.com.ph/blog/classroom-shortage-by-congressional-district), [Top 20 cities and municipalities](https://nash.com.ph/blog/cities-municipalities-largest-classroom-shortage), [Rizal](https://nash.com.ph/blog/classroom-shortage-rizal), [Quezon City](https://nash.com.ph/blog/classroom-shortage-quezon-city), [City of Manila](https://nash.com.ph/blog/classroom-shortage-manila), [Tawi-Tawi](https://nash.com.ph/blog/classroom-shortage-tawi-tawi), [Cavite](https://nash.com.ph/blog/classroom-shortage-cavite), [Cost of a classroom](https://nash.com.ph/blog/cost-to-build-classroom-philippines)
- Explainers: [PSIP III](https://nash.com.ph/blog/psip-iii-classrooms-explained), [Senior high shortage](https://nash.com.ph/blog/senior-high-school-classroom-shortage), [Junior high shortage](https://nash.com.ph/blog/junior-high-school-classroom-shortage), [Excess classrooms](https://nash.com.ph/blog/schools-with-more-classrooms-than-needed), [Learning Continuity Spaces](https://nash.com.ph/blog/learning-continuity-spaces-sbp-2026), [How learners reach school](https://nash.com.ph/blog/how-learners-reach-public-high-schools)
- For teachers and school heads: [Action research and thesis topics](https://nash.com.ph/blog/action-research-topics-classroom-shortage)
- Related: [CRLA Results SY 2025-26 in Region IV-A: Counts vs Rates](https://nash.com.ph/blog/crla-results-sy-2025-2026-region-4a-calabarzon), [DepEd School Improvement Plan (SIP): Steps, AIP and SRC](https://nash.com.ph/blog/deped-school-improvement-plan), [How to Read DepEd Data: A Guide for Aspiring School Heads](https://nash.com.ph/blog/how-to-read-deped-data)

*Analysis and charts by Mark Anthony Llego for NASH Reviewer. Data: EDCOM II classroom construction dashboard and Department of Education data. NASH Reviewer is not affiliated with EDCOM II or DepEd. Charts may be reused only with written permission from support@nash.com.ph.*

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© 2026 Mark Anthony Llego, NASH Reviewer. All rights reserved. You may quote up to 100 words from this article with the author's name, its title and a link. In research, cite it as: Llego, M. A. (2026, October 28). *Classroom Shortage in Region IV-A, 2023–2026: Rizal, Cavite*. NASH Reviewer. https://nash.com.ph/blog/classroom-shortage-region-4a-calabarzon. Any other reuse of the article, its charts or its data needs written permission: email support@nash.com.ph. Terms of Service: https://nash.com.ph/terms#website-content-and-data