County Maps US

Bartholomew County, Indiana

A county in Indiana, ranked 19 of 92 by population.

CountyFIPS 18005

Within Indiana
Bartholomew County, highlighted, with the areas around it. Boundaries generalised from the 2025 Census cartographic boundary file; neighbour fills carry no data. The dot marks Columbus, the county seat, located via the 2025 Census Gazetteer.

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Population
85,729
+3,516 (+4.3%) since 2020
Land area
406.9
square miles. A further 0.6% of the total area is water
Population density
211
people per square mile, computed rather than published
County seat
Columbus
Seat of county government.
Established
1821
204 years ago
Largest city
Columbus city
Population 52,655.

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; Wikidata (CC0), Wikidata. Retrieved 30 August 2026.

Satellite view

Aerial imagery of Bartholomew County with its boundary drawn on top. A map shows you the shape; this shows you what is inside it, and which side of the line a place falls on.

Aerial view of Bartholomew County, Indiana from the USGS National Map, with its boundary outlined
Imagery: USGS National Map, USGS Imagery Only, public domain, requested from USGS by your browser when you reach this point on the page, at 792 by 800 pixels. The boundary is the 2025 Census cartographic boundary file, reprojected to Web Mercator to match the imagery. You can also open the USGS National Map viewer.

Where Bartholomew County ranks

Position among the 92 counties of Indiana, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn IndianaNationally
Population85,72919th of 92690th of 3,144
Land area406.9 sq mi37th of 922,486th of 3,144
Population density211 per sq mi20th of 92544th of 3,144
Median household income$79,90111th of 92590th of 3,143

Full data for Bartholomew County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population85,729Vintage 2025 Population Estimates
Population in 202082,213Vintage 2025 Population Estimates
2020 estimates base?82,210Vintage 2025 Population Estimates
Land area406.9 sq mi2025 Gazetteer Files
Water area2.6 sq mi2025 Gazetteer Files
Total area409.5 sq mi2025 Gazetteer Files
Population density?211 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$79,901American Community Survey 2020-2024 5-Year Estimates
Median home value$232,800American Community Survey 2020-2024 5-Year Estimates
Median age37.5American Community Survey 2020-2024 5-Year Estimates
Households33,359American Community Survey 2020-2024 5-Year Estimates
Housing units35,668American Community Survey 2020-2024 5-Year Estimates

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; US Census Bureau, American Community Survey, American Community Survey 2020-2024 5-Year Estimates, released 29 January 2026. Population density is computed here, not published: it divides the Vintage 2025 population estimate by the 2025 Gazetteer land area, which are two different Census products. Retrieved 30 August 2026.

How the population changed

The Census Bureau publishes the components behind an estimate, not just the total. For the year to July 2025:

Births minus deaths
+176
993 births, 817 deaths
Net migration
+600
More people moved in than moved out.

Source: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026. Retrieved 30 August 2026.

The 6 areas bordering Bartholomew County

Ordered by the length of the border actually shared, which the Census Bureau publishes in its county adjacency file and which no other county reference presents.

Bordering areaStateShared borderPopulation
Brown CountyIndiana20 mi15,777
Jackson CountyIndiana18 mi47,370
Decatur CountyIndiana15 mi26,576
Shelby CountyIndiana14 mi45,882
Jennings CountyIndiana10 mi27,622
Johnson CountyIndiana7.2 mi174,262

Source: US Census Bureau, County Adjacency File, 2025 County Adjacency File, released 15 September 2025. Retrieved 30 August 2026.

All 92 counties of Indiana

Open the interactive Indiana county map, or jump straight to any of them.

Data on this page last rebuilt 30 August 2026. How these figures are produced.