1,206-CITY ATLASSOURCE-BACKED CITY REFERENCE
United States
Compare this sourced profile of Philadelphia, United States before planning. Stable fields identify the place; confirm current transport, access and opening details with official sources.
01What the data says — and does not say
This page separates the checked GeoNames row for Philadelphia—1,573,916, America/New_York, and source coordinates—from live travel claims. Those fields identify and compare the record; they do not prove current transport, accessibility, census totals, or a City Atlas Club visit.
Wikidata's localized description: largest city in the U.S. state of Pennsylvania and seat of Philadelphia County.
02This city's dataset fingerprint
The source row behind Philadelphia is GeoNames ID 4560349. Its recorded administrative path is Philadelphia County → Pennsylvania → United States, and GeoNames classifies the place as a second-order administrative seat. Philadelphia 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 2025-04-14; that date belongs to the source record, not to every transport or visitor detail in the real destination.
Within the fixed 1,206-record atlas, Philadelphia ranks 292 by recorded population. Inside the 43 selected United States entries it ranks 8; inside the 198 entries in its broad region it ranks 41. Its 1,573,916 population value is 2.02 times the 780,995 median for the country cohort and 1.93 times the 816,326 regional median. Philadelphia falls between the leading tenth and quarter of this atlas's United States population cohort. Philadelphia's recorded value reaches at least twice the country-cohort median in this snapshot. These comparisons describe this selected dataset only; they are not current census rankings or official urban-area boundaries.
Philadelphia's three nearest other atlas coordinates are Brooklyn at 128.912 km with 2,736,074 recorded people; New York City at 129.635 km with 8,804,190 recorded people; Manhattan at 137.218 km with 1,487,536 recorded people. The closest-to-farthest distance spread is 8.306 km. Compared with Brooklyn, Philadelphia's recorded population is 0.58 times as large. Against Philadelphia, Brooklyn follows Kings County → New York → United States in the source. Its point has higher latitude and higher longitude; it belongs to the same selected United States cohort, uses the shared America/New_York identifier, and carries the same second-order administrative seat class. Its recorded population is above Philadelphia's. Against Philadelphia, New York City follows New York → United States in the source. Its point has higher latitude and higher longitude; it belongs to the same selected United States cohort, uses the shared America/New_York identifier, and carries populated place rather than second-order administrative seat. Its recorded population is above Philadelphia's. Against Philadelphia, Manhattan follows New York County → New York → United States in the source. Its point has higher latitude and higher longitude; it belongs to the same selected United States cohort, uses the shared America/New_York identifier, and carries the same second-order administrative seat class. Its recorded population is below Philadelphia's. Its nearest-neighbor distance ranks 816 of 1,206 from shortest to longest in the same snapshot. Philadelphia's nearest-coordinate gap belongs to the wider half of atlas distances. 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 4560349, the coordinate pair 39.9524 / 75.1636, country rank 8 of 43, and neighbor GeoNames 5110302 at 128.912 km bind Philadelphia to a reproducible comparison. That combined key distinguishes the row; it is not a recommendation or evidence of a physical connection.
Philadelphia's reference point is 39.9524° north and 75.1636° west. The IANA identifier America/New_York is shared by 15 city rows in this catalog, while the GeoNames class PPLA2 is shared by 341 rows. Philadelphia's row carries both second- and first-order administrative labels. Philadelphia's point falls in the middle-latitude coordinate band used by this atlas's row checks. Philadelphia's time-zone field defines the narrower catalog cohort; its place class is shared more broadly. GeoNames records Philadelphia at 12 metres above sea level, a single reference value rather than a description of slopes across the city. Together these fields form a reproducible identity check for this page, not a claim about walkability, climate or accessibility.
03Nearby atlas references
Philadelphia's closest other entries in this atlas are Brooklyn (128.912 km), New York City (129.635 km), Manhattan (137.218 km).
04Verify before you book
Before visiting Philadelphia, confirm changing decisions with current first-party sources:
Read how City Atlas Club verifies changing travel facts →05Sources and freshness
GeoNames updated the row 2025-04-14; the atlas checked the dataset 2026-08-04. Available Wikidata fields were verified in the same run.
GeoNames data: CC BY 4.0. Wikidata labels and descriptions: CC0 1.0.