County Maps US

Cleveland County, Oklahoma

A county in Oklahoma, ranked 3 of 77 by population.

CountyFIPS 40027

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

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Population
303,973
+7,720 (+2.6%) since 2020
Land area
538.9
square miles. A further 3.4% of the total area is water
Population density
564
people per square mile, computed rather than published
County seat
Norman
Seat of county government.
Established
1889
136 years ago
Largest city
Norman city
Population 130,943.

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 Cleveland 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 Cleveland 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 773 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 Cleveland 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
Population303,9733rd of 77244th of 3,144
Land area538.9 sq mi70th of 771,942nd of 3,144
Population density564 per sq mi3rd of 77257th of 3,144
Median household income$77,0686th of 77722nd of 3,143

Full data for Cleveland County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population303,973Vintage 2025 Population Estimates
Population in 2020296,253Vintage 2025 Population Estimates
2020 estimates base?295,523Vintage 2025 Population Estimates
Land area538.9 sq mi2025 Gazetteer Files
Water area19.0 sq mi2025 Gazetteer Files
Total area557.9 sq mi2025 Gazetteer Files
Population density?564 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$77,068American Community Survey 2020-2024 5-Year Estimates
Median home value$235,700American Community Survey 2020-2024 5-Year Estimates
Median age35.4American Community Survey 2020-2024 5-Year Estimates
Households116,799American Community Survey 2020-2024 5-Year Estimates
Housing units124,442American 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
+219
2,751 births, 2,532 deaths
Net migration
+322
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 4 areas bordering Cleveland 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
McClain CountyOklahoma56 mi49,647
Pottawatomie CountyOklahoma31 mi75,102
Oklahoma CountyOklahoma30 mi822,125
Canadian CountyOklahoma2.7 mi187,189

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.