Where every figure comes from

Datasets published

Tier 1 is published as-is. Tier 2 is published with a caveat shown next to the figure. Tiers 3 and 4 are held back and do not appear on this site. “Last verified” is when a maintainer last checked the source — not the date the data describes.

The history is sourced separately, sentence by sentence, with its own reference list.

References

1. PSA OpenSTAT — 2024 Census of Population, CALABARZON by barangay

   Philippine Statistics Authority · Geographic Location 0401008000 (Calatagan) and its 25 barangay codes; parameters: Total Population, Household Population, Number of Households. Accessed 22 September 2026. Authority: primary-government.

2. PSGC API — Calatagan barangays

   psgc.gitlab.io (community mirror of PSA PSGC) . Accessed 22 September 2026. Authority: government-derived-dataset.

3. PSGC Cloud API — Calatagan barangays

   psgc.cloud (community mirror of PSA PSGC) . Accessed 22 September 2026. Authority: government-derived-dataset.

4. BLGF Memorandum Circular No. 020.2024 (Annex A — Schedule of Income Classification)

   Bureau of Local Government Finance, Department of Finance · Annex A, page 13 of 32 — Region IV-A, Batangas, Calatagan. Accessed 22 September 2026. Authority: primary-government.

   SHA-256 298d5ee0926bd1aed8bd33862de178b7144efb23a029aaa0888eed5b335a4117

5. DOF Department Order No. 074.2024

   Department of Finance · Schedule of Income Reclassification, effective 1 January 2025. Accessed 22 September 2026. Authority: primary-government.

   SHA-256 34bd94787524421fe9e4bdda744773c477c32e096754c49ab127b4d5e45a04e1

6. PSA Batangas — 2024 POPCEN population of Calatagan

   Philippine Statistics Authority, Batangas Provincial Office · Population as of 01 July 2024. Accessed 22 September 2026. Authority: social-media.

7. PSA OpenSTAT — Population, Land Area and Population Density: 2015, 2020, 2024

   Philippine Statistics Authority · Geographic Location 0401008000 (Calatagan). Accessed 22 September 2026. Authority: primary-government.

8. DILG Full Disclosure Policy Portal — Calatagan filings

   Department of the Interior and Local Government · Region IV-A (CALABARZON) · Batangas · Calatagan. Accessed 22 September 2026. Authority: primary-government.

9. Internet Archive — calatagan.gov.ph

   Internet Archive · CDX index of PDF, XLS and DOC captures, excluding plugin assets. Accessed 22 September 2026. Authority: archived-official.

Deliberately not published

These are facts people often expect to find here. Each is held back for a stated reason, and will be published once it can be sourced to the site’s standard.

Land area

PSA's own statistical table gives 10.50 km² and computes a 2024 density of 5,754 persons per km² from it. Comparable Batangas municipalities in that same table sit near 50 km², and a widely circulated figure for Calatagan is 101.50 km², which would make PSA's value a dropped digit. We cannot confirm which is right, so we publish neither.

Current elected officials

Election results for May 2025 are available from a civic-tech derivative of COMELEC data, but results are not the same as present incumbency, and no COMELEC or DILG primary source has been read. Scheduled for a later phase.

Calatagan’s own poverty incidence

PSA publishes municipal poverty (small-area estimates) only on psa.gov.ph, which this project’s tools cannot read. PSA OpenSTAT’s tables stop at the province, so the Statistics page shows Batangas’s figures, labelled as the province’s, and not a figure for Calatagan.

Financial figures from Full Disclosure Policy filings other than the Statement of Receipts and Expenditures

The Finances page publishes figures from the 14 quarterly Statements of Receipts and Expenditures, each traced to its spreadsheet cell and reconciled. The other 13 forms (142 filings, including the Statement of Cash Flow, Statement of Indebtedness, 20% development fund, disaster fund, trust fund and special education fund utilization reports, bid results and the annual budget report) are only indexed on the transparency section with links to each DILG original. No amount from them has been extracted or restated, because no extraction of those forms has been built or reviewed for accuracy.

COA audit figures and findings, and planning-document facts

COA is unreachable to this project’s tooling, and the planning documents circulate only on third-party document hosts with no government-hosted copy and no confirmed adoption status.