| | | Jefferson County | CO | 08059 | | Denver-Aurora-Centennial,
CO 19740 | Denver-Aurora-Greeley, CO 216 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=JeffersonCounty+CO |
| | | Larimer County | CO | 08069 | | Fort Collins-Loveland, CO 22660 | | Central | metro county (urban) | recreation | https://maps.google.com/?q=LarimerCounty+CO |
| | | Mesa County | CO | 08077 | | Grand Junction, CO 24300 | | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=MesaCounty+CO |
| | | Park County | CO | 08093 | | Denver-Aurora-Centennial,
CO 19740 | Denver-Aurora-Greeley, CO 216 | Outlying | metro county (urban) | recreation | https://maps.google.com/?q=ParkCounty+CO |
| | | Pueblo County | CO | 08101 | | Pueblo, CO 39380 | Pueblo-Cañon City, CO 444 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=PuebloCounty+CO |
| | | Teller County | CO | 08119 | | Colorado Springs, CO 17820 | | Outlying | metro county (urban) | recreation | https://maps.google.com/?q=TellerCounty+CO |
| | | Weld County | CO | 08123 | | Greeley, CO 24540 | Denver-Aurora-Greeley, CO 216 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=WeldCounty+CO |
| | | 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 |
