Source identity and administrative path
The source row behind Calamba is GeoNames ID 1720681. Its recorded administrative path is Province of Laguna → Calabarzon → Philippines, and GeoNames classifies the place as a first-order administrative seat. Calamba occurs once as a primary city label in this atlas sample; the numeric ID remains the durable source key if names change. The city row itself was updated 2026-04-14; that date belongs to the source record, not to every transport or visitor detail in the real destination.
Population position inside fixed cohorts
Within the fixed 1,206-record atlas, Calamba ranks 969 by recorded population. Inside the 22 selected Philippines entries it ranks 17; inside the 632 entries in its broad region it ranks 522. Its 575,046 population value is 0.72 times the 797,334 median for the country cohort and 0.57 times the 1,008,426 regional median. Calamba sits in the lower half of this atlas's selected Philippines entries. Calamba's recorded value is materially below the country-cohort median used here. These comparisons describe this selected dataset only; they are not current census rankings or official urban-area boundaries.
Nearest-reference pattern
Calamba's three nearest other atlas coordinates are Muntinlupa at 23.569 km with 552,225 recorded people; Las Piñas at 33.048 km with 615,549 recorded people; Paranaque City at 33.972 km with 703,245 recorded people. The closest-to-farthest distance spread is 10.403 km. Compared with Muntinlupa, Calamba's recorded population is 1.04 times as large. Against Calamba, Muntinlupa follows Province of Rizal → Calabarzon → Philippines in the source. Its point has higher latitude and lower longitude; it belongs to the same selected Philippines cohort, uses the shared Asia/Manila identifier, and carries third-order administrative seat rather than first-order administrative seat. Its recorded population is below Calamba's. Against Calamba, Las Piñas follows Southern Manila District → National Capital Region → Philippines in the source. Its point has higher latitude and lower longitude; it belongs to the same selected Philippines cohort, uses the shared Asia/Manila identifier, and carries third-order administrative seat rather than first-order administrative seat. Its recorded population is above Calamba's. Against Calamba, Paranaque City follows Southern Manila District → National Capital Region → Philippines in the source. Its point has higher latitude and lower longitude; it belongs to the same selected Philippines cohort, uses the shared Asia/Manila identifier, and carries third-order administrative seat rather than first-order administrative seat. Its recorded population is above Calamba's. Its nearest-neighbor distance ranks 291 of 1,206 from shortest to longest in the same snapshot. Calamba's nearest-coordinate gap falls between the tightest tenth and quarter of the atlas. This pattern can reveal whether other catalog references are geographically close, but it cannot establish whether a border crossing is possible or practical, or whether rail, road, fare, or journey-time connections exist. Read as one record signature, GeoNames 1720681, the coordinate pair 14.2117 / 121.1653, country rank 17 of 22, and neighbor GeoNames 1699076 at 23.569 km bind Calamba to a reproducible comparison. That combined key distinguishes the row; it is not a recommendation or evidence of a physical connection.
Coordinate, time-zone and class cohorts
Calamba's reference point is 14.2117° north and 121.1653° east. The IANA identifier Asia/Manila is shared by 22 city rows in this catalog, while the GeoNames class PPLA is shared by 429 rows. Calamba's row carries both second- and first-order administrative labels. Calamba's point falls in the near-equatorial coordinate band used by this atlas's row checks. Calamba's time-zone field defines the narrower catalog cohort; its place class is shared more broadly. GeoNames supplies no elevation for Calamba, so the profile preserves that missing value instead of guessing terrain. Together these fields form a reproducible identity check for this page, not a claim about walkability, climate or accessibility.
- Record keys
- Calamba · GeoNames 1720681 · no verified Wikidata entity
- Name scope
- Calamba · 1 atlas row share this source label · qualifier not required
- Administrative chain
- Province of Laguna · Calabarzon · Philippines
- Coordinate signature
- 14.2117° N · 121.1653° E
- Population snapshot
- 575,046 · atlas rank 969 of 1,206
- Country comparison
- Philippines rank 17 of 22 · median 797,334 · ratio 0.72×
- Regional comparison
- Asia rank 522 of 632 · median 1,008,426 · ratio 0.57×
- Time-zone cohort
- Asia/Manila · 22 of 1,206 atlas rows
- Place-class cohort
- PPLA first-order administrative seat · 429 of 1,206 rows
- Elevation field
- Calamba · missing in GeoNames
- Nearest reference
- Muntinlupa · 23.569 km · population 552,225 · atlas rank 1,007
- Second reference
- Las Piñas · 33.048 km · population 615,549 · atlas rank 907
- Third reference
- Paranaque City · 33.972 km · population 703,245 · atlas rank 780
- Neighbour geometry
- Calamba · nearest-distance rank 291 of 1,206 · three-reference spread 10.403 km
- Source dates
- Calamba row updated 2026-04-14 · atlas dataset checked 2026-08-04