Dallas County is a county located in the U.S. state of Iowa. As of the 2020 census, its population was 99,678, and was estimated to be 118,457 in 2025. making it the sixth-most populous county in Iowa

Bouton is a city in Dallas County, Iowa, United States. The population was 127 at the 2020 census. It is part of the Des Moines–West Des Moines Metropolitan Statistical Area.