County Maps US

Wabash County, Illinois

A county in Illinois, ranked 86 of 102 by population.

CountyFIPS 17185

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

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Population
10,907
-412 (-3.6%) since 2020
Land area
223.3
square miles. A further 1.9% of the total area is water
Population density
48.8
people per square mile, computed rather than published
County seat
Mount Carmel
Seat of county government.
Established
1824
201 years ago
Largest city
Mount Carmel city
Population 6,723.

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 Wabash 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 Wabash County, Illinois 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 667 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 Wabash County ranks

Position among the 102 counties of Illinois, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn IllinoisNationally
Population10,90786th of 1022,349th of 3,144
Land area223.3 sq mi98th of 1022,963rd of 3,144
Population density48.8 per sq mi46th of 1021,499th of 3,144
Median household income$57,08688th of 1022,322nd of 3,143

Full data for Wabash County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population10,907Vintage 2025 Population Estimates
Population in 202011,319Vintage 2025 Population Estimates
2020 estimates base?11,361Vintage 2025 Population Estimates
Land area223.3 sq mi2025 Gazetteer Files
Water area4.2 sq mi2025 Gazetteer Files
Total area227.6 sq mi2025 Gazetteer Files
Population density?48.8 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$57,086American Community Survey 2020-2024 5-Year Estimates
Median home value$104,900American Community Survey 2020-2024 5-Year Estimates
Median age43.2American Community Survey 2020-2024 5-Year Estimates
Households4,740American Community Survey 2020-2024 5-Year Estimates
Housing units5,410American 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
-67
77 births, 144 deaths
Net migration
-53
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 Wabash 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
Edwards CountyIllinois41 mi5,898
Gibson CountyIndiana31 mi33,091
Knox CountyIndiana18 mi35,652
Lawrence CountyIllinois14 mi13,790
Richland CountyIllinois2.3 mi15,219
White CountyIllinois0.3 mi13,250

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

All 102 counties of Illinois

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

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