Campbell County is a county in the U.S. state of Wyoming. As of the 2020 United States Census, the population was 47,026, making it the third-most populous county in Wyoming. Its county seat is Gillette.
Campbell County comprises the Gillette, WY... Wikipedia
County seat: Gillette
Population: 47,058 (2022)
Congressional district: At-large
Founded: February 21, 1911
Named for: Robert Campbell