The list is the FIPS codes of Arizona counties. All the FIPS codes are starting with 04.
| County | FIPS Code |
| Apache | 04001 |
| Cochise | 04003 |
| Coconino | 04005 |
| Gila | 04007 |
| Graham | 04009 |
| Greenlee | 04011 |
| La Paz | 04012 |
| Maricopa | 04013 |
| Mohave | 04015 |
| Navajo | 04017 |
| Pima | 04019 |
| Pinal | 04021 |
| Santa Cruz | 04023 |
| Yavapai | 04025 |
| Yuma | 04027 |
All codes are cited from United States Department of Agriculture [28].