Kleberg County is a county in the U.S. state of Texas. As of the 2020 census, its population was 31,040. The county seat is Kingsville. The county was organized in 1913 and is named for Robert J. Kleberg, an early settler. Kleberg County is part of the Kingsville, TX Micropolitan Statistical Area, which is also part of the Corpus Christi-Kingsville-Alice, TX Combined Statistical Area. Most of the county's land lies in the famed King Ranch, which also extends into neighboring counties.