County Maps US

Lee County, Iowa

A county in Iowa, ranked 22 of 99 by population.

CountyFIPS 19111

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

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Population
32,306
-1,221 (-3.6%) since 2020
Land area
517.6
square miles. A further 4.0% of the total area is water
Population density
62.4
people per square mile, computed rather than published
County seat
Keokuk
Seat of county government.
Established
1836
189 years ago
Largest city
Fort Madison city
Population 9,935.

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 Lee 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 Lee 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 766 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 Lee 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
Population32,30622nd of 991,390th of 3,144
Land area517.6 sq mi67th of 992,016th of 3,144
Population density62.4 per sq mi18th of 991,281st of 3,144
Median household income$62,38286th of 991,858th of 3,143

Full data for Lee County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population32,306Vintage 2025 Population Estimates
Population in 202033,527Vintage 2025 Population Estimates
2020 estimates base?33,552Vintage 2025 Population Estimates
Land area517.6 sq mi2025 Gazetteer Files
Water area21.3 sq mi2025 Gazetteer Files
Total area538.9 sq mi2025 Gazetteer Files
Population density?62.4 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$62,382American Community Survey 2020-2024 5-Year Estimates
Median home value$141,400American Community Survey 2020-2024 5-Year Estimates
Median age43.6American Community Survey 2020-2024 5-Year Estimates
Households14,323American Community Survey 2020-2024 5-Year Estimates
Housing units15,794American 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
-130
361 births, 491 deaths
Net migration
-43
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 Lee 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
Clark CountyMissouri29 mi6,475
Hancock CountyIllinois29 mi16,803
Des Moines CountyIowa22 mi38,077
Henry CountyIowa16 mi19,349
Van Buren CountyIowa15 mi7,131
Henderson CountyIllinois5.9 mi5,984

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.