Plainview is a city in and the county seat of Hale County, Texas, United States. The population was 22,336 at the 2000 census. According to the United States Census Bureau, the city has a total area of 13.8square miles (36Square kilometers), all of it land. As of the census of 2000, there were 22,336people, 7,626households, and 5,666families residing in the city. The population density was 1,621.0inhabitants per square mile (625.9Square kilometers).