Wichita Falls, Texas. Wichita Falls (/ˈwɪtʃᵻtɔː/ WITCH-ə-taw) is a city in and the county seat of Wichita County, Texas, United States. Wichita Falls is the principal city of the Wichita Falls Metropolitan Statistical Area, which encompasses all of Archer, Clay, and Wichita Counties. According to the 2010 census, the city had a population of 104,553, making it the 29th-most populous city in Texas.