Morgan County is a county located in the U.S. state of Colorado. As of the 2020 census, the population was 29,111. The county seat is Fort Morgan. The county was named after old Fort Morgan, which in turn was named in honor of Colonel Christopher A. Morgan.

Fort Morgan is the home rule municipality city that is the county seat and the most populous municipality of Morgan County, Colorado, United States. The city population was 11,597 at the 2020 United States Census. Fort Morgan is the principal city of the Fort Morgan, CO Micropolitan Statistical Area.