Crawford County is a county located in the east-central portion of the U.S. state of Missouri. At the 2020 Census, the population was 23,056. Its county seat is Steelville. The county was organized in 1829 and is named after U.S. Senator William H. Crawford of Georgia.

Steelville is a city in Crawford County, Missouri, United States. The population was 1,472 at the 2020 census. It is the county seat of Crawford County. Steelville is the hometown of Congressman Albert Reeves and Missouri State Representative Jason Chipman. The town was named after the landowner James Steel.