Cimarron Hills is an unincorporated community and a census-designated place located in and governed by El Paso County, Colorado, United States. Cimarron Hills is an enclave of the City of Colorado Springs. The CDP is a part of the Colorado Springs, CO Metropolitan Statistical Area. The population of the Cimarron Hills CDP was 19,311 at the United S…Cimarron Hills is an unincorporated community and a census-designated place located in and governed by El Paso County, Colorado, United States. Cimarron Hills is an enclave of the City of Colorado Springs. The CDP is a part of the Colorado Springs, CO Metropolitan Statistical Area. The population of the Cimarron Hills CDP was 19,311 at the United States Census 2020. The Colorado Springs post office serves the area.