Rifle is a home rule municipality in, and the most populous community of, Garfield County, Colorado, United States. The population was 10,437 at the 2020 census. Rifle is a regional center of the cattle ranching industry located along Interstate 70 and the Colorado River just east of the Roan Plateau, which dominates the western skyline of the town. The town was founded in 1882 by Abram Maxfield, and was incorporated in 1905 along Rifle Creek, near its mouth on the Colorado.