| | | 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 |
| | | Kiowa County | CO | 08061 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=KiowaCounty+CO |
| | | Kit Carson County | CO | 08063 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=KitCarsonCounty+CO |
| | | La Plata County | CO | 08067 | | Durango, CO 20420 | | Central | nonmetro county (rural) | recreation | https://maps.google.com/?q=LaPlataCounty+CO |
| | | Lake County | CO | 08065 | | Breckenridge, CO 14720 | | Outlying | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=LakeCounty+CO |
| | | Larimer County | CO | 08069 | | Fort Collins-Loveland, CO 22660 | | Central | metro county (urban) | recreation | https://maps.google.com/?q=LarimerCounty+CO |
| | | Las Animas County | CO | 08071 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=LasAnimasCounty+CO |
| | | Lincoln County | CO | 08073 | | | | | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=LincolnCounty+CO |
| | | Logan County | CO | 08075 | | Sterling, CO 44540 | | Central | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=LoganCounty+CO |
| | | Mesa County | CO | 08077 | | Grand Junction, CO 24300 | | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=MesaCounty+CO |
