County Maps US

LaPorte County, Indiana

A county in Indiana, ranked 16 of 92 by population.

CountyFIPS 18091

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

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Population
111,294
-985 (-0.9%) since 2020
Land area
598.3
square miles. A further 2.4% of the total area is water
Population density
186
people per square mile, computed rather than published
County seat
La Porte
Seat of county government.
Established
1832
193 years ago
Largest city
Michigan City city
Population 31,338.

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 LaPorte 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 LaPorte 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 542 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 LaPorte 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
Population111,29416th of 92575th of 3,144
Land area598.3 sq mi2nd of 921,628th of 3,144
Population density186 per sq mi22nd of 92590th of 3,144
Median household income$71,05537th of 921,125th of 3,143

Full data for LaPorte County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population111,294Vintage 2025 Population Estimates
Population in 2020112,279Vintage 2025 Population Estimates
2020 estimates base?112,418Vintage 2025 Population Estimates
Land area598.3 sq mi2025 Gazetteer Files
Water area15.0 sq mi2025 Gazetteer Files
Total area613.3 sq mi2025 Gazetteer Files
Population density?186 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$71,055American Community Survey 2020-2024 5-Year Estimates
Median home value$195,500American Community Survey 2020-2024 5-Year Estimates
Median age41.1American Community Survey 2020-2024 5-Year Estimates
Households43,633American Community Survey 2020-2024 5-Year Estimates
Housing units50,038American 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
-320
1,087 births, 1,407 deaths
Net migration
+261
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 5 areas bordering LaPorte 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
Porter CountyIndiana36 mi176,049
Starke CountyIndiana28 mi23,425
St. Joseph CountyIndiana26 mi272,861
Berrien CountyMichigan21 mi152,444
Jasper CountyIndianaa single point33,894

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.