Clinton is a city in and the county seat of Clinton County, Iowa, United States. The population was 26,885 as of 2010. Clinton, along with DeWitt, Iowa (also located in Clinton County), was named in honor of the sixth governor of New York, DeWitt Clinton. Clinton is the principal city of the Clinton Micropolitan Statistical Area, which is coterminous with Clinton County. Clinton was incorporated on January 26, 1857.