Clay County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 10,218.^[1][2] The county seat is Henrietta.^[3] The county was founded in 1857 and later organized in 1860.^[4] It is named in honor of Henry Clay,^[5] famous American statesman, Kentucky Senator and United States Secretary of State.

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Clay County
County
Clay County Courthouse in Henrietta
Location within the U.S. state of Texas
Texas's location within the U.S.
Coordinates: 33°47′N 98°13′W
Country	United States
State	Texas
Founded	1860
Named for	Henry Clay
Seat	Henrietta
Largest city	Henrietta
Area
• Total	1,117 sq mi (2,890 km2)
• Land	1,089 sq mi (2,820 km2)
• Water	28 sq mi (70 km2)  2.5%
Population  (2020)
• Total	10,218
• Density	9.1/sq mi (3.5/km2)
Time zone	UTC−6 (Central)
• Summer (DST)	UTC−5 (CDT)
Congressional district	13th
Website	www.co.clay.tx.us

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Clay County is part of the Wichita Falls, Metropolitan Statistical Area in North Texas.

The Wichita Falls rancher, oilman, and philanthropist Joseph Sterling Bridwell owned a ranch in Clay County, among his multiple holdings.^[6]

According to the U.S. Census Bureau, the county has a total area of 1,117 square miles (2,890 km²), of which 1,089 square miles (2,820 km²) is land and 28 square miles (73 km²) (2.5%) is water.^[7]

Lake Arrowhead State Park, a 524-acre (212 ha) development on Lake Arrowhead in Clay County, encompasses 14,390-acre (5,820 ha) acres. The lakeshore extends 106 miles; the park offers bicycling, birding, boating, camping, canoeing, fishing, hiking, horseback riding, nature study, picnicking, swimming, and wildlife observation.^[8]

Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos can be of any race.

As of the census^[13] of 2000, there were 11,006 people, 4,323 households, and 3,181 families residing in the county. The population density was 10 people per square mile (3.9 people/km²). There were 4,992 housing units at an average density of 4 per square mile (1.5/km²). The racial makeup of the county was 95.35% White, 0.42% Black or African American, 1.03% Native American, 0.10% Asian, 0.01% Pacific Islander, 1.68% from other races, and 1.42% from two or more races. 3.67% of the population were Hispanic or Latino of any race. At 89.4% of the county's population, Clay County has the highest percentage of Non-Hispanic Whites in the state of Texas.^[14]

There were 4,323 households, out of which 30.70% had children under the age of 18 living with them, 63.20% were married couples living together, 7.30% had a female householder with no husband present, and 26.40% were non-families. 23.50% of all households were made up of individuals, and 11.80% had someone living alone who was 65 years of age or older. The average household size was 2.52 and the average family size was 2.98.

In the county, the population was spread out, with 24.90% under the age of 18, 6.80% from 18 to 24, 26.40% from 25 to 44, 25.90% from 45 to 64, and 16.10% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 94.00 males. For every 100 females age 18 and over, there were 93.10 males.

The median income for a household in the county was $35,738, and the median income for a family was $41,514. Males had a median income of $28,914 versus $20,975 for females. The per capita income for the county was $16,361. About 8.10% of families and 10.30% of the population were below the poverty line, including 11.70% of those under age 18 and 11.00% of those age 65 or over.

Clay County is represented in the Texas House of Representatives by Republican James Frank, a businessman from Wichita Falls.

Prior to 1996, Clay County was strongly Democratic in presidential elections. The only Republican Party candidates who managed to win the county from 1912 to 1992 were Herbert Hoover thanks to anti-Catholic sentiment towards Al Smith as well as Richard Nixon & Ronald Reagan in their 49-state landslides of 1972 & 1984, respectively. Since 1996, the county has swung hard to the supporting Republican Party similar to almost all white-majority rural counties in the Solid South.

School districts serving sections of the county include:^[16]

• Bellevue Independent School District
• Bowie Independent School District
• Burkburnett Independent School District
• Gold-Burg Independent School District
• Henrietta Independent School District
• Midway Independent School District
• Petrolia Consolidated Independent School District
• Windthorst Independent School District

The county is in the service area of Vernon College.^[17]

• List of museums in North Texas
• National Register of Historic Places listings in Clay County, Texas
• Recorded Texas Historic Landmarks in Clay County