| | Alamosa County | CO | 08003 | | Alamosa, CO 10480 | | Central | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=AlamosaCounty+CO |
| | Archuleta County | CO | 08007 | | | | | nonmetro county (rural) | recreation | https://maps.google.com/?q=ArchuletaCounty+CO |
| | Baca County | CO | 08009 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=BacaCounty+CO |
| | Bent County | CO | 08011 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=BentCounty+CO |
| | Chaffee County | CO | 08015 | | | | | nonmetro county (rural) | recreation | https://maps.google.com/?q=ChaffeeCounty+CO |
| | Cheyenne County | CO | 08017 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=CheyenneCounty+CO |
| | Conejos County | CO | 08021 | | Alamosa, CO 10480 | | Outlying | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=ConejosCounty+CO |
| | Costilla County | CO | 08023 | | Alamosa, CO 10480 | | Outlying | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=CostillaCounty+CO |
| | Crowley County | CO | 08025 | | | | | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=CrowleyCounty+CO |
| | Custer County | CO | 08027 | | | | | nonmetro county (rural) | recreation | https://maps.google.com/?q=CusterCounty+CO |