Chase County, Kansas

A county in Kansas, ranked 90 of 105 by population.

CountyFIPS 20017

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

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Population
2,572
-2 (-0.1%) since 2020
Land area
773.1
square miles. A further 0.6% of the total area is water
Population density
3.3
people per square mile, computed rather than published
County seat
Cottonwood Falls
Seat of county government.
Established
1859
166 years ago
Largest city
Cottonwood Falls city
Population 860.

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 Chase 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 Chase County, Kansas 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 711 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 Chase County ranks

Position among the 105 counties of Kansas, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn KansasNationally
Population2,57290th of 1052,991st of 3,144
Land area773.1 sq mi50th of 1051,123rd of 3,144
Population density3.3 per sq mi86th of 1052,878th of 3,144
Median household income$56,48491st of 1052,374th of 3,143

Full data for Chase County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population2,572Vintage 2025 Population Estimates
Population in 20202,574Vintage 2025 Population Estimates
2020 estimates base?2,576Vintage 2025 Population Estimates
Land area773.1 sq mi2025 Gazetteer Files
Water area4.7 sq mi2025 Gazetteer Files
Total area777.7 sq mi2025 Gazetteer Files
Population density?3.3 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$56,484American Community Survey 2020-2024 5-Year Estimates
Median home value$109,700American Community Survey 2020-2024 5-Year Estimates
Median age45.5American Community Survey 2020-2024 5-Year Estimates
Households1,147American Community Survey 2020-2024 5-Year Estimates
Housing units1,388American 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
-20
19 births, 39 deaths
Net migration
0
Arrivals and departures balanced.

Source: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026. Retrieved 30 August 2026.

The 5 areas bordering Chase 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
Marion CountyKansas31 mi11,634
Morris CountyKansas25 mi5,348
Lyon CountyKansas24 mi32,266
Butler CountyKansas17 mi69,484
Greenwood CountyKansas15 mi5,826

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

All 105 counties of Kansas

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

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