| | | Pueblo County | CO | 08101 | | Pueblo, CO 39380 | Pueblo-Cañon City, CO 444 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=PuebloCounty+CO |
| | | Routt County | CO | 08107 | | Steamboat Springs, CO 44460 | | Central | nonmetro county (rural) | recreation | https://maps.google.com/?q=RouttCounty+Colorado |
| | | Summit County | CO | 08117 | | Breckenridge, CO 14720 | | Central | nonmetro county (rural) | recreation | https://maps.google.com/?q=SummitCounty+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 |
| | | Clear Creek County | CO | 08019 | | Denver-Aurora-Centennial,
CO 19740 | Denver-Aurora-Greeley, CO 216 | Outlying | metro county (urban) | mining-dependent | https://maps.google.com/?q=ClearCreekCounty+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 |
| | | Elbert County | CO | 08039 | | Denver-Aurora-Centennial,
CO 19740 | Denver-Aurora-Greeley, CO 216 | Outlying | metro county (urban) | farm-dependent | https://maps.google.com/?q=ElbertCounty+CO |
| | | Gilpin County | CO | 08047 | | Denver-Aurora-Centennial,
CO 19740 | Denver-Aurora-Greeley, CO 216 | Outlying | metro county (urban) | recreation | https://maps.google.com/?q=GilpinCounty+CO |
| | | Lake County | CO | 08065 | | Breckenridge, CO 14720 | | Outlying | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=LakeCounty+CO |
