Kay County is acounty located in theU.S. state ofOklahoma. As of the2020 census, its population was 43,700.^[1] Itscounty seat isNewkirk,^[2] and the largest city isPonca City.

Kay County
County
Kay County Courthouse inNewkirk (2010)
Location within the U.S. state ofOklahoma
Oklahoma's location within theU.S.
Coordinates:36°49′N97°08′W / 36.81°N 97.14°W /36.81; -97.14
Country	United States
State	Oklahoma
Founded	1893
Seat	Newkirk
Largest city	Ponca City
Area
• Total	945 sq mi (2,450 km2)
• Land	920 sq mi (2,400 km2)
• Water	25 sq mi (60 km2)  2.7%
Population  (2020)
• Total	43,700
• Density	46/sq mi (18/km2)
Time zone	UTC−6 (Central)
• Summer (DST)	UTC−5 (CDT)
Congressional district	3rd
Website	https://www.courthouse.kay.ok.us/

Kay County comprises the Ponca Citymicropolitan statistical area. It is in north-central Oklahoma on the Kansas state line.

Before statehood, Kay County was formed from the "Cherokee Strip" or "Cherokee Outlet" and originally designated as county "K". Its name means simply that.^[3][4] Kay County is the only county to keep its same name as the Oklahoma area moved from a territory to a state.

The remains of two large 18th-century villages, theDeer Creek/Bryson Paddock Sites, ofWichita Native Americans have been found overlooking theArkansas River in Kay County. TheOsage used Kay County for hunting in the late 18th and early 19th centuries. In 1825, the Osage ceded to the U.S. government their rights to a large expanse of land, including Kay County, and the government gave theCherokee ownership of the land after their migration to Oklahoma in the 1830s.^[3]

After the Civil War, the Cherokee Nation was forced to allow the federal government to relocate other Native American tribes to settle in the area known as the Cherokee Outlet. TheKansa (Kaw) arrived in June 1873, settling in what became the northeastern part of Kay County. The Ponca followed in 1877. TheNez Perce came from the Pacific Northwest in 1879, but remained only until 1885, when they returned to their earlier homeland. Their assigned land in Oklahoma was then occupied by theTonkawa andLipan Apache peoples. Most of Kay County became open to non-Native American settlement in 1893 with theCherokee Strip Land Run in which thousands of people rushed into Kay County to claim free land.^[3]

TheChilocco Indian Agricultural School, north of Newkirk, was a boarding school for Indians that operated from 1884 to 1980. Its enrollment peaked at 1,300 in the 1950s and its graduates include members of 126 Indian tribes. The distinguished old buildings of the school were constructed of local limestone.^[5]

In 2010, theKeystone-Cushing Pipeline (Phase II) was constructed north to south through Kay County toCushing inPayne County.

On September 17, 2024, theNational Park Service announced that Kay County and Ponca City were jointly named aWorld War II Heritage City.^[6][7]

According to theU.S. Census Bureau, the county has a total area of 945 sq mi (2,450 km²), of which 25 square miles (65 km²) (2.7%) are covered by water.^[8] The highest point in Kay County, Oklahoma, is west of North Sage Lane (36′56″12°N, 96′53″40°W), at 1,310 feet (400 m) above sea level. The lowest point is 891 feet (272 m) where the Arkansas River leaves the county.^[9]

The northern boundary is the border withKansas and its eastern boundary is withOsage County.Kaw Lake, a large reservoir on the Arkansas River completed in 1975 includes most of the water area of the country. East of Kaw Lake and the Arkansas River is the region called theOsage Hills orThe Osage, a tall-grass prairie region of large livestock, mostly cattle, ranches. West of the Arkansas River the land is flatter and a mixture of cultivated lands and livestock ranches. Principal rivers flowing through the county are theChikaskia River, the Arkansas River and theSalt Fork of the Arkansas River.^[3]

•  Interstate 35
•  U.S. Highway 60
•  U.S. Highway 77
•  U.S. Highway 177
•  State Highway 11
•  State Highway 156

• Cowley County, Kansas (north)
• Garfield County (southwest)
• Grant County (west)
• Noble County (south)
• Osage County (east)
• Sumner County, Kansas (north)

As of thecensus of 2000, there were 48,080 people, 19,157 households, and 13,141 families residing in the county.^[15] Thepopulation density was 52 people per square mile (20 people/km²). There were 21,804 housing units at an average density of 24 units per square mile (9.3/km²). The racial makeup of the county was 84.16%White, 1.79%Black orAfrican American, 7.53%Native American, 0.53%Asian, 0.02%Pacific Islander, 1.98% fromother races, and 4.00% from two or more races; 4.25% of the population wereHispanic orLatino of any race. In 2020, its population was 43,700.^[1]

As of 2000, there were 19,157 households, out of which 31.90% had children under the age of 18 living with them, 54.70% weremarried couples living together, 10.20% had a female householder with no husband present, and 31.40% were non-families. 27.90% of all households were made up of individuals, and 13.10% had someone living alone who was 65 years of age or older. The average household size was 2.45 and the average family size was 2.99. In the county, the population was spread out, with 26.40% under the age of 18, 8.80% from 18 to 24, 25.00% from 25 to 44, 22.80% from 45 to 64, and 17.00% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 93.70 males. For every 100 females age 18 and over, there were 89.90 males.

In 2000, the median income for a household in the county was $30,762, and the median income for a family was $38,144. Males had a median income of $30,431 versus $19,617 for females. Theper capita income for the county was $16,643. About 12.40% of families and 16.00% of the population were below thepoverty line, including 22.70% of those under age 18 and 9.50% of those age 65 or over. In 2021, its median household income was $50,391.^[1]

Of 3,142 counties in the United States in 2014, theInstitute for Health Metrics and Evaluation ranked Kay County 2,441 in the average life expectancy at birth of male residents and 2,650 in the life expectancy of female residents. Life expectancy in Kay county ranked in the bottom 20 percent of U.S. counties. Males in Kay County lived an average of 73.3 years and females lived an average of 78.0 years compared to the national average for life expectancy of 76.7 for males and 81.5 for females.^[16] In the 1980-2014 period, the average life expectancy in Kay County for females increased by 0.1 years while male longevity increased by 3.0 years compared to the national average for the same period of an increased life expectancy of 4.0 years for women and 6.7 years for men.^[17]

In 2020, theRobert Wood Johnson Foundation ranked Kay country as 47th of 77 counties in Oklahoma in "health outcomes," as measured by length and quality of life.^[18]

As of December 22, 2022, Oklahoma has been impacted more by theCovid pandemic (2020-?) than the average U.S. State. Statistics for the U.S. as a whole are 331 deaths per 100,000 population with 68 percent of the population fully vaccinated. The comparable statistics for Oklahoma are 405 deaths per 100,000 population with 59 percent of the population fully vaccinated. Kay County has been impacted more by Covid than the average county in Oklahoma. 238 Covid deaths have been recorded in Kay County. The Covid death rate was .00547 (547 deaths per 100,000 residents). Forty-five percent of Kay County residents are fully vaccinated.^[19]

Kay County, like the rest of Oklahoma, is heavily Republican. Republicans have carried the county with a majority of the vote in all but one election since1948, and have won greater than 70% of the county's vote in every election since 2004.

• Blackwell
• Kaw City
• Newkirk (county seat)
• Ponca City (largest city) (partially in Osage County)(best known as "Ponca")
• Tonkawa

• Braman
• Kildare

• Nardin
• Peckham
• Tonkawa Tribal Housing
• White Eagle

• Chilocco

• Joseph James, Mixed-bloodKaw native American, died in Kay County in 1898.
• Les Layton, baseball player.
• Jim Reese, former member of theOklahoma House of Representatives and since 2011 the commissioner of theOklahoma Department of Agriculture, was born in Kay County c. 1957.
• E.W. Marland, 10th Governor of Oklahoma, U.S. Congressman, and Oil tycoon who gained and lost a fortune in the Oklahoma oil fields.
• The Miller Brothers - Joseph, George and Zack - who inherited the famous 101 Ranch from parents G.W. and Molly Miller, who encouraged their children to go big or go home.
• Lew Wentz - oil tycoon and philanthropist

• National Register of Historic Places listings in Kay County, Oklahoma

36°49′N97°08′W / 36.81°N 97.14°W /36.81; -97.14