The list is the FIPS codes of Colorado counties. All the FIPS codes are starting with 08.
| County | FIPS Code |
| Adams | 08001 |
| Alamosa | 08003 |
| Arapahoe | 08005 |
| Archuleta | 08007 |
| Baca | 08009 |
| Bent | 08011 |
| Boulder | 08013 |
| Chaffee | 08015 |
| Cheyenne | 08017 |
| Clear Creek | 08019 |
| Conejos | 08021 |
| Costilla | 08023 |
| Crowley | 08025 |
| Custer | 08027 |
| Delta | 08029 |
| Denver | 08031 |
| Dolores | 08033 |
| Douglas | 08035 |
| Eagle | 08037 |
| El Paso | 08041 |
| Elbert | 08039 |
| Fremont | 08043 |
| Garfield | 08045 |
| Gilpin | 08047 |
| Grand | 08049 |
| Gunnison | 08051 |
| Hinsdale | 08053 |
| Huerfano | 08055 |
| Jackson | 08057 |
| Jefferson | 08059 |
| Kiowa | 08061 |
| Kit Carson | 08063 |
| La Plata | 08067 |
| Lake | 08065 |
| Larimer | 08069 |
| Las Animas | 08071 |
| Lincoln | 08073 |
| Logan | 08075 |
| Mesa | 08077 |
| Mineral | 08079 |
| Moffat | 08081 |
| Montezuma | 08083 |
| Montrose | 08085 |
| Morgan | 08087 |
| Otero | 08089 |
| Ouray | 08091 |
| Park | 08093 |
| Phillips | 08095 |
| Pitkin | 08097 |
| Prowers | 08099 |
| Pueblo | 08101 |
| Rio Blanco | 08103 |
| Rio Grande | 08105 |
| Routt | 08107 |
| Saguache | 08109 |
| San Juan | 08111 |
| San Miguel | 08113 |
| Sedgwick | 08115 |
| Summit | 08117 |
| Teller | 08119 |
| Washington | 08121 |
| Weld | 08123 |
| Yuma | 08125 |
All codes are cited from United States Department of Agriculture [28].