| | 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 |
| | Delta County | CO | 08029 | | | | | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=DeltaCounty+CO |
| | Dolores County | CO | 08033 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=DoloresCounty+CO |
| | Eagle County | CO | 08037 | | Edwards, CO 20780 | Edwards-Rifle, CO 233 | Central | nonmetro county (rural) | recreation | https://maps.google.com/?q=EagleCounty+CO |