1,206-CITY ATLASSOURCE-BACKED CITY REFERENCE
United States
Compare this sourced profile of Indianapolis, 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 Indianapolis—887,642, America/Indiana/Indianapolis, 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: capital city of the U.S. state of Indiana and seat of Marion County.
02This city's dataset fingerprint
The source row behind Indianapolis is GeoNames ID 4259418. Its recorded administrative path is Marion County → Indiana → United States, and GeoNames classifies the place as a first-order administrative seat. Indianapolis 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 2026-05-17; 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, Indianapolis ranks 627 by recorded population. Inside the 43 selected United States entries it ranks 20; inside the 198 entries in its broad region it ranks 90. Its 887,642 population value is 1.14 times the 780,995 median for the country cohort and 1.09 times the 816,326 regional median. Indianapolis sits in the second quarter of this atlas's United States population cohort. Indianapolis's recorded value stays within one quarter of the country-cohort median used here. These comparisons describe this selected dataset only; they are not current census rankings or official urban-area boundaries.
Indianapolis's three nearest other atlas coordinates are Louisville at 171.851 km with 624,444 recorded people; Chicago at 263.325 km with 2,664,452 recorded people; Columbus at 270.474 km with 913,175 recorded people. The closest-to-farthest distance spread is 98.623 km. Compared with Louisville, Indianapolis's recorded population is 1.42 times as large. Against Indianapolis, Louisville follows Jefferson County → Kentucky → United States in the source. Its point has lower latitude and higher longitude; it belongs to the same selected United States cohort, uses America/Kentucky/Louisville instead of America/Indiana/Indianapolis, and carries second-order administrative seat rather than first-order administrative seat. Its recorded population is below Indianapolis's. Against Indianapolis, Chicago follows Cook County → Illinois → United States in the source. Its point has higher latitude and lower longitude; it belongs to the same selected United States cohort, uses America/Chicago instead of America/Indiana/Indianapolis, and carries second-order administrative seat rather than first-order administrative seat. Its recorded population is above Indianapolis's. Against Indianapolis, Columbus follows Franklin County → Ohio → United States in the source. Its point has higher latitude and higher longitude; it belongs to the same selected United States cohort, uses America/New_York instead of America/Indiana/Indianapolis, and carries the same first-order administrative seat class. Its recorded population is above Indianapolis's. Its nearest-neighbor distance ranks 936 of 1,206 from shortest to longest in the same snapshot. Indianapolis'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 4259418, the coordinate pair 39.7684 / 86.1580, country rank 20 of 43, and neighbor GeoNames 4299276 at 171.851 km bind Indianapolis to a reproducible comparison. That combined key distinguishes the row; it is not a recommendation or evidence of a physical connection.
Indianapolis's reference point is 39.7684° north and 86.1580° west. The IANA identifier America/Indiana/Indianapolis is shared by 1 city rows in this catalog, while the GeoNames class PPLA is shared by 429 rows. Indianapolis's row carries both second- and first-order administrative labels. Indianapolis's point falls in the middle-latitude coordinate band used by this atlas's row checks. Indianapolis's time-zone field defines the narrower catalog cohort; its place class is shared more broadly. GeoNames records Indianapolis at 218 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
Indianapolis's closest other entries in this atlas are Louisville (171.851 km), Chicago (263.325 km), Columbus (270.474 km).
04Verify before you book
Before visiting Indianapolis, confirm changing decisions with current first-party sources:
Read how City Atlas Club verifies changing travel facts →05Sources and freshness
GeoNames updated the row 2026-05-17; 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.