Source identity and administrative path
The source row behind Baltimore is GeoNames ID 4347778. Its recorded administrative path is City of Baltimore → Maryland → United States, and GeoNames classifies the place as a second-order administrative seat. Baltimore 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 2025-07-24; 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, Baltimore ranks 954 by recorded population. Inside the 43 selected United States entries it ranks 34; inside the 198 entries in its broad region it ranks 154. Its 585,708 population value is 0.75 times the 780,995 median for the country cohort and 0.72 times the 816,326 regional median. Baltimore sits in the lower half of this atlas's selected United States entries. Baltimore'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
Baltimore's three nearest other atlas coordinates are Washington, D.C. at 57.2 km with 689,545 recorded people; Philadelphia at 144.261 km with 1,573,916 recorded people; Brooklyn at 272.639 km with 2,736,074 recorded people. The closest-to-farthest distance spread is 215.439 km. Compared with Washington, D.C., Baltimore's recorded population is 0.85 times as large. Against Baltimore, Washington, D.C. follows District of Columbia → United States in the source. Its point has lower latitude and lower longitude; it belongs to the same selected United States cohort, uses the shared America/New_York identifier, and carries capital of a political entity rather than second-order administrative seat. Its recorded population is above Baltimore's. Against Baltimore, Philadelphia follows Philadelphia County → Pennsylvania → 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 Baltimore's. Against Baltimore, 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 Baltimore's. Its nearest-neighbor distance ranks 485 of 1,206 from shortest to longest in the same snapshot. Baltimore's nearest-coordinate gap sits in the second quarter 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 4347778, the coordinate pair 39.2904 / 76.6122, country rank 34 of 43, and neighbor GeoNames 4140963 at 57.2 km bind Baltimore 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
Baltimore's reference point is 39.2904° north and 76.6122° 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. Baltimore's row carries both second- and first-order administrative labels. Baltimore's point falls in the middle-latitude coordinate band used by this atlas's row checks. Baltimore's time-zone field defines the narrower catalog cohort; its place class is shared more broadly. GeoNames records Baltimore at 10 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.
- Record keys
- Baltimore · GeoNames 4347778 · Q5092
- Name scope
- Baltimore · 1 atlas row share this source label · qualifier not required
- Administrative chain
- City of Baltimore · Maryland · United States
- Coordinate signature
- 39.2904° N · 76.6122° W
- Population snapshot
- 585,708 · atlas rank 954 of 1,206
- Country comparison
- United States rank 34 of 43 · median 780,995 · ratio 0.75×
- Regional comparison
- the Americas rank 154 of 198 · median 816,326 · ratio 0.72×
- Time-zone cohort
- America/New_York · 15 of 1,206 atlas rows
- Place-class cohort
- PPLA2 second-order administrative seat · 341 of 1,206 rows
- Elevation field
- Baltimore · 10 m
- Nearest reference
- Washington, D.C. · 57.2 km · population 689,545 · atlas rank 796
- Second reference
- Philadelphia · 144.261 km · population 1,573,916 · atlas rank 292
- Third reference
- Brooklyn · 272.639 km · population 2,736,074 · atlas rank 136
- Neighbour geometry
- Baltimore · nearest-distance rank 485 of 1,206 · three-reference spread 215.439 km
- Source dates
- Baltimore row updated 2025-07-24 · atlas dataset checked 2026-08-04