Campion, ColoradoCampion is an unincorporated community located in southeastern Larimer County, Colorado, United States. A former census-designated place (CDP), the population was 1,832 at the United States Census 2000.EtymologyCampion was named for John F. Campion, a railroad official.GeographyCampion is located between Loveland and Berthoud along U.S. Route 287.