County Maps US

Custer County, Oklahoma

A county in Oklahoma, ranked 33 of 77 by population.

CountyFIPS 40039

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

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Population
28,175
-273 (-1.0%) since 2020
Land area
988.8
square miles. A further 1.3% of the total area is water
Population density
28.5
people per square mile, computed rather than published
County seat
Arapaho
Seat of county government.
Established
1892
133 years ago
Largest city
Weatherford city
Population 12,005.

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 Custer 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 Custer County, Oklahoma 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 492 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 Custer County ranks

Position among the 77 counties of Oklahoma, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn OklahomaNationally
Population28,17533rd of 771,505th of 3,144
Land area988.8 sq mi22nd of 77696th of 3,144
Population density28.5 per sq mi38th of 771,969th of 3,144
Median household income$59,73839th of 772,106th of 3,143

Full data for Custer County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population28,175Vintage 2025 Population Estimates
Population in 202028,448Vintage 2025 Population Estimates
2020 estimates base?28,517Vintage 2025 Population Estimates
Land area988.8 sq mi2025 Gazetteer Files
Water area13.3 sq mi2025 Gazetteer Files
Total area1,002 sq mi2025 Gazetteer Files
Population density?28.5 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$59,738American Community Survey 2020-2024 5-Year Estimates
Median home value$181,500American Community Survey 2020-2024 5-Year Estimates
Median age32.8American Community Survey 2020-2024 5-Year Estimates
Households11,044American Community Survey 2020-2024 5-Year Estimates
Housing units12,971American 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
+9
354 births, 345 deaths
Net migration
-33
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 Custer 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
Dewey CountyOklahoma42 mi4,207
Washita CountyOklahoma42 mi10,884
Roger Mills CountyOklahoma22 mi3,259
Blaine CountyOklahoma19 mi8,515
Caddo CountyOklahoma6.0 mi26,130
Beckham CountyOklahoma3.0 mi22,159

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

All 77 counties of Oklahoma

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

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