County Maps US

Kossuth County, Iowa

The largest of Iowa's 99 counties by land area.

CountyFIPS 19109

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

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Population
14,322
-472 (-3.2%) since 2020
Land area
972.7
square miles. A further 0.2% of the total area is water
Population density
14.7
people per square mile, computed rather than published
County seat
Algona
Seat of county government.
Established
1851
174 years ago
Largest city
Algona city
Population 5,309.

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 Kossuth 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 Kossuth 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 501 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 Kossuth 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
Population14,32254th of 992,135th of 3,144
Land area972.7 sq mi1st of 99717th of 3,144
Population density14.7 per sq mi88th of 992,403rd of 3,144
Median household income$67,69766th of 991,366th of 3,143

Full data for Kossuth County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population14,322Vintage 2025 Population Estimates
Population in 202014,794Vintage 2025 Population Estimates
2020 estimates base?14,822Vintage 2025 Population Estimates
Land area972.7 sq mi2025 Gazetteer Files
Water area1.6 sq mi2025 Gazetteer Files
Total area974.3 sq mi2025 Gazetteer Files
Population density?14.7 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$67,697American Community Survey 2020-2024 5-Year Estimates
Median home value$148,300American Community Survey 2020-2024 5-Year Estimates
Median age44.2American Community Survey 2020-2024 5-Year Estimates
Households6,543American Community Survey 2020-2024 5-Year Estimates
Housing units7,205American 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
-16
185 births, 201 deaths
Net migration
-129
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 9 areas bordering Kossuth 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
Hancock CountyIowa24 mi10,528
Palo Alto CountyIowa24 mi8,899
Humboldt CountyIowa24 mi9,409
Emmet CountyIowa17 mi9,107
Winnebago CountyIowa17 mi10,251
Faribault CountyMinnesota14 mi13,888
Martin CountyMinnesota9.8 mi19,440
Pocahontas CountyIowaa single point6,819
Wright CountyIowaa single point12,801

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.