Cloud County is a county located in the U.S. state of Kansas. Its county seat and most populous city is Concordia. As of the 2020 census, the county population was 9,032. The county was named after William Cloud, an officer in the American Civil War.

Concordia is a city in and the county seat of Cloud County, Kansas, United States. It is located along the Republican River in the Smoky Hills region of the Great Plains in North Central Kansas. As of the 2020 census, the population of the city was 5,111. Concordia is home of the Cloud County Community College and the Nazareth Convent and Academy.