Special geographic areas & non-standard classes

Philippine special geographic areas (BARMM), Manila sub-municipalities, and other non-standard classes as per-class GeoJSON extracts, enriched with PSGC codes.

This page documents the non-standard administrative classes shipped in the curated hierarchical output (2023-10-24/hierarchical_t0p005/). Beyond the standard per-class files (barangays, municipalities, cities, provinces, regions), the bundle also contains the files below.

Special Geographic Areas

Special Geographic Areas (SGAs) are nine units created under BARMM (Bangsamoro Autonomous Region in Muslim Mindanao) legislation (the 2023 SGA Act) from barangays in North Cotabato that voted to join the BARMM. They sit outside the standard region → province → municipality → barangay hierarchy — they have no province or municipality parent — so they get their own class. Their PSGC codes share the 19999... prefix.

• special_geographic_areas.geojson — the 9 SGAs (snapshot 2023-10-24).

curl -O https://github.com/bendlikeabamboo/barangay-boundaries-repository/releases/download/v2026.4.13.0/special_geographic_areas.geojson

Other non-standard files

File	Features	What it is
country.geojson	3,640	the national boundary (ADM0) — a single country represented as many polygons (islands)
non_administrative.geojson	20	features that map to no standard PSGC level — the four NCR legislative districts, represented as mm_district virtual provinces (see HUC mapping)
unresolved.geojson	6	features that could not be matched to any PSGC entity (see coverage)
submunicipalities.geojson	0	Manila’s 14 sub-municipalities — empty, because NAMRIA publishes no sub-municipality polygon layer (they exist only as barangay parents)

Feature counts are from summary.md.