Creek County is a county located in the U.S. state of Oklahoma. As of the 2020 census, the population was 71,754.^[1] Its county seat is Sapulpa.^[2]

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Creek County
County
Creek County Courthouse, Sapulpa in 2014
Location within the U.S. state of Oklahoma
Oklahoma's location within the U.S.
Coordinates: 35°54′N 96°22′W
Country	United States
State	Oklahoma
Founded	1907
Named for	Creek Nation
Seat	Sapulpa
Largest city	Sapulpa
Area
• Total	970 sq mi (2,500 km2)
• Land	950 sq mi (2,500 km2)
• Water	20 sq mi (50 km2)  2.0%
Population  (2020)
• Total	71,754
• Density	74/sq mi (29/km2)
Time zone	UTC−6 (Central)
• Summer (DST)	UTC−5 (CDT)
Congressional districts	1st, 3rd
Website	www.creekcountyonline.com

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Creek County is part of the Tulsa, OK metropolitan statistical area.

European explorers traveled through this area early in the 19th century, after the Louisiana Purchase. In 1825, the Osage Nation ceded the territory where the Federal Government planned to resettle the Creek Nation and other tribes after their expulsion from the Southeastern part of the United States. The Creeks began migrating into this area, where they and their black slaves settled to begin farming and raising cattle. In 1835, Federal soldiers under Captain J. L. Dawson built the Dawson Road, following an old Osage hunting trail.^[3]

Railroads gave an important boost to the local economy. In 1886, the Atlantic and Pacific Railroad built a line from Red Fork to Sapulpa. In 1898, the St. Louis and Oklahoma City Railway Company (later the St. Louis–San Francisco Railway),^[4] connected Sapulpa and Oklahoma City.^[3]

The present Creek County was established at the time of statehood, with a population of 18,365. The town of Sapulpa was initially designated as the county seat. This decision was challenged by supporters of the town of Bristow. An election held August 12, 1908, to choose a permanent seat was won by Sapulpa, but the dispute did not end there. After a series of court cases, the Oklahoma Supreme Court ruled in favor of Sapulpa on August 1, 1913.^[3]

After oil was discovered at Glenn Pool in adjacent Tulsa County in 1905, other strikes occurred in Creek County. The Cushing-Drumright Oil Field opened in 1912, creating boom towns Drumright, Kiefer and Oilton. By 1920, the county population had increased to 62,480.^[3]

According to the U.S. Census Bureau, the county has a total area of 970 square miles (2,500 km²), of which 950 square miles (2,500 km²) is land and 20 square miles (52 km²) (2.0%) is water.^[5] It is drained by the Cimarron River, and the Deep Fork and Little Deep Fork of the North Canadian River. Heyburn Lake is contained within the county. Keystone Lake is partially within Creek County.^[3]

As of the census of 2000,^[11] there were 67,367 people, 25,289 households, and 19,017 families residing in the county. The population density was 70 inhabitants per square mile (27/km²). There were 27,986 housing units at an average density of 29 units per square mile (11 units/km²). The racial makeup of the county was 82.27% White, 2.56% Black or African American, 9.08% Native American, 0.27% Asian, 0.03% Pacific Islander, 0.63% from other races, and 5.16% from two or more races; 1.90% of the population were Hispanic or Latino of any race. As of the 2020 census, its population increased to 71,754.^[1]

As of 2000, there were 25,289 households, out of which 34.80% had children under the age of 18 living with them, 60.10% were married couples living together, 10.90% had a female householder with no husband present, and 24.80% were non-families. 21.60% of all households were made up of individuals, and 9.40% had someone living alone who was 65 years of age or older. The average household size was 2.64 and the average family size was 3.06. In the county, the population was spread out, with 27.40% under the age of 18, 8.00% from 18 to 24, 27.30% from 25 to 44, 24.50% from 45 to 64, and 12.80% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 96.00 males. For every 100 females age 18 and over, there were 92.90 males.

As of 2000, the median income for a household in the county was $33,168, and the median income for a family was $38,470. Males had a median income of $31,190 versus $21,690 for females. The per capita income for the county was $16,191. About 8% of families and 13.50% of the population were below the poverty line, including 17.20% of those under age 18 and 14.10% of those age 65 or over. By 2021 census estimates, its median household income was $56,384.^[1]