County Maps US

Steuben County, Indiana

A county in Indiana, ranked 46 of 92 by population.

CountyFIPS 18151

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

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Population
34,799
+347 (+1.0%) since 2020
Land area
308.8
square miles. A further 4.2% of the total area is water
Population density
113
people per square mile, computed rather than published
County seat
Angola
Seat of county government.
Established
1835
190 years ago
Largest city
Angola city
Population 9,366.

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 Steuben 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 Steuben 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 800 by 656 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 Steuben 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
Population34,79946th of 921,319th of 3,144
Land area308.8 sq mi78th of 922,790th of 3,144
Population density113 per sq mi33rd of 92834th of 3,144
Median household income$74,91125th of 92847th of 3,143

Full data for Steuben County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population34,799Vintage 2025 Population Estimates
Population in 202034,452Vintage 2025 Population Estimates
2020 estimates base?34,440Vintage 2025 Population Estimates
Land area308.8 sq mi2025 Gazetteer Files
Water area13.7 sq mi2025 Gazetteer Files
Total area322.5 sq mi2025 Gazetteer Files
Population density?113 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$74,911American Community Survey 2020-2024 5-Year Estimates
Median home value$216,200American Community Survey 2020-2024 5-Year Estimates
Median age43.5American Community Survey 2020-2024 5-Year Estimates
Households14,058American Community Survey 2020-2024 5-Year Estimates
Housing units19,181American 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
-94
337 births, 431 deaths
Net migration
+106
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 Steuben 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
DeKalb CountyIndiana20 mi44,535
Branch CountyMichigan19 mi45,993
LaGrange CountyIndiana16 mi41,305
Williams CountyOhio11 mi36,549
Hillsdale CountyMichigan5.4 mi45,738
Noble CountyIndianaa single point47,937

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.