County Maps US

LaGrange County, Indiana

A county in Indiana, ranked 37 of 92 by population.

CountyFIPS 18087

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

Download SVGFull Indiana map downloads

Population
41,305
+768 (+1.9%) since 2020
Land area
379.6
square miles. A further 1.8% of the total area is water
Population density
109
people per square mile, computed rather than published
County seat
LaGrange
Seat of county government.
Established
1832
193 years ago
Largest city
Lagrange town
Population 2,769.

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 LaGrange 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 LaGrange 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 571 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 LaGrange 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
Population41,30537th of 921,169th of 3,144
Land area379.6 sq mi59th of 922,605th of 3,144
Population density109 per sq mi35th of 92854th of 3,144
Median household income$84,4879th of 92438th of 3,143

Full data for LaGrange County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population41,305Vintage 2025 Population Estimates
Population in 202040,537Vintage 2025 Population Estimates
2020 estimates base?40,445Vintage 2025 Population Estimates
Land area379.6 sq mi2025 Gazetteer Files
Water area7.1 sq mi2025 Gazetteer Files
Total area386.7 sq mi2025 Gazetteer Files
Population density?109 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$84,487American Community Survey 2020-2024 5-Year Estimates
Median home value$255,900American Community Survey 2020-2024 5-Year Estimates
Median age32.7American Community Survey 2020-2024 5-Year Estimates
Households12,897American Community Survey 2020-2024 5-Year Estimates
Housing units15,151American 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
+429
746 births, 317 deaths
Net migration
-243
More people moved out than moved in.

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

The 6 areas bordering LaGrange 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
Noble CountyIndiana24 mi47,937
St. Joseph CountyMichigan19 mi60,968
Elkhart CountyIndiana16 mi208,774
Steuben CountyIndiana16 mi34,799
Branch CountyMichigan4.9 mi45,993
DeKalb CountyIndianaa single point44,535

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.