Appanoose County, Iowa

A county in Iowa, ranked 62 of 99 by population.

CountyFIPS 19007

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

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Population
12,077
-206 (-1.7%) since 2020
Land area
497.3
square miles. A further 3.7% of the total area is water
Population density
24.3
people per square mile, computed rather than published
County seat
Centerville
Seat of county government.
Established
1843
182 years ago
Largest city
Centerville city
Population 5,327.

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 Appanoose 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 Appanoose County, Iowa 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 731 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 Appanoose County ranks

Position among the 99 counties of Iowa, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn IowaNationally
Population12,07762nd of 992,276th of 3,144
Land area497.3 sq mi73rd of 992,094th of 3,144
Population density24.3 per sq mi55th of 992,083rd of 3,144
Median household income$54,93499th of 992,479th of 3,143

Full data for Appanoose County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population12,077Vintage 2025 Population Estimates
Population in 202012,283Vintage 2025 Population Estimates
2020 estimates base?12,312Vintage 2025 Population Estimates
Land area497.3 sq mi2025 Gazetteer Files
Water area19.0 sq mi2025 Gazetteer Files
Total area516.3 sq mi2025 Gazetteer Files
Population density?24.3 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$54,934American Community Survey 2020-2024 5-Year Estimates
Median home value$124,200American Community Survey 2020-2024 5-Year Estimates
Median age43.5American Community Survey 2020-2024 5-Year Estimates
Households5,199American Community Survey 2020-2024 5-Year Estimates
Housing units6,312American 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
-60
127 births, 187 deaths
Net migration
+35
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 7 areas bordering Appanoose 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
Monroe CountyIowa24 mi7,406
Wayne CountyIowa22 mi6,738
Davis CountyIowa21 mi9,230
Putnam CountyMissouri20 mi4,546
Schuyler CountyMissouri4.0 mi4,140
Lucas CountyIowaa single point8,847
Wapello CountyIowaa single point35,210

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

All 99 counties of Iowa

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

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