Kerr County is a county located on the Edwards Plateau in the U.S. state of Texas. As of the 2020 census, its population was 52,598, and it was estimated to be 54,037 in 2025. The county seat and the largest city is Kerrville. The county was named by Joshua D. Brown for his fellow Kentucky native James Kerr, a congressman of the Republic of Texas. The Kerrville, Texas micropolitan statistical area includes all of Kerr County.