Brush is a Statutory City located in Morgan County, Colorado, United States. The city population was 5,339 at the 2020 United States Census. Brush is a part of the Fort Morgan, CO Micropolitan Statistical Area.

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.