County Maps US

Butler County, Kansas

The largest of Kansas's 105 counties by land area.

CountyFIPS 20015

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

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Population
69,484
+2,096 (+3.1%) since 2020
Land area
1,430
square miles. A further 1.2% of the total area is water
Population density
48.6
people per square mile, computed rather than published
County seat
El Dorado
Seat of county government.
Established
1855
170 years ago
Largest city
Andover city
Population 17,370.

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 Butler 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 Butler 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 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 Butler 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
Population69,4848th of 105800th of 3,144
Land area1,430 sq mi1st of 105421st of 3,144
Population density48.6 per sq mi14th of 1051,501st of 3,144
Median household income$81,6106th of 105518th of 3,143

Full data for Butler County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population69,484Vintage 2025 Population Estimates
Population in 202067,388Vintage 2025 Population Estimates
2020 estimates base?67,371Vintage 2025 Population Estimates
Land area1,430 sq mi2025 Gazetteer Files
Water area16.8 sq mi2025 Gazetteer Files
Total area1,447 sq mi2025 Gazetteer Files
Population density?48.6 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$81,610American Community Survey 2020-2024 5-Year Estimates
Median home value$217,600American Community Survey 2020-2024 5-Year Estimates
Median age38.4American Community Survey 2020-2024 5-Year Estimates
Households25,338American Community Survey 2020-2024 5-Year Estimates
Housing units27,485American 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
+12
692 births, 680 deaths
Net migration
+344
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 8 areas bordering Butler 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
Cowley CountyKansas35 mi34,382
Greenwood CountyKansas33 mi5,826
Sedgwick CountyKansas30 mi538,433
Chase CountyKansas17 mi2,572
Marion CountyKansas17 mi11,634
Harvey CountyKansas12 mi33,580
Elk CountyKansas9.0 mi2,458
Sumner CountyKansasa single point22,312

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.