The City of Brush is a Statutory City located in Morgan County, Colorado, United States. The population was 5,117 at the 2000 census. Brush is a small city where agriculture and ranching still make up a large part of the local economy. The major community events of the year are the Morgan County Fair and the Brush Rodeo. The Brush Rodeo, held July 25, is known as the largest amateur rodeo in the World and brings contestants from all over the West. The County Fair is the showcase for the local youth and adult's 4-H projects and livestock.