Augusta is a city in Butler County, Kansas, United States. As of the 2020 census, the population of the city was 9,256. It is located east of Wichita along U.S. Route 54 / 400 highway.

Butler County is a county in the U.S. state of Kansas and is the largest county in the state by total area. Its county seat is El Dorado and its most populous city is Andover. As of the 2020 census, the county population was 67,380. The county was named for Andrew Butler, a U.S. Senator from South Carolina who coauthored the Kansas–Nebraska Act.