The list is the FIPS codes of Nebraska counties. All the FIPS codes are starting with 31.
| County | FIPS Code |
| Adams | 31001 |
| Antelope | 31003 |
| Arthur | 31005 |
| Banner | 31007 |
| Blaine | 31009 |
| Boone | 31011 |
| Box Butte | 31013 |
| Boyd | 31015 |
| Brown | 31017 |
| Buffalo | 31019 |
| Burt | 31021 |
| Butler | 31023 |
| Cass | 31025 |
| Cedar | 31027 |
| Chase | 31029 |
| Cherry | 31031 |
| Cheyenne | 31033 |
| Clay | 31035 |
| Colfax | 31037 |
| Cuming | 31039 |
| Custer | 31041 |
| Dakota | 31043 |
| Dawes | 31045 |
| Dawson | 31047 |
| Deuel | 31049 |
| Dixon | 31051 |
| Dodge | 31053 |
| Douglas | 31055 |
| Dundy | 31057 |
| Fillmore | 31059 |
| Franklin | 31061 |
| Frontier | 31063 |
| Furnas | 31065 |
| Gage | 31067 |
| Garden | 31069 |
| Garfield | 31071 |
| Gosper | 31073 |
| Grant | 31075 |
| Greeley | 31077 |
| Hall | 31079 |
| Hamilton | 31081 |
| Harlan | 31083 |
| Hayes | 31085 |
| Hitchcock | 31087 |
| Holt | 31089 |
| Hooker | 31091 |
| Howard | 31093 |
| Jefferson | 31095 |
| Johnson | 31097 |
| Kearney | 31099 |
| Keith | 31101 |
| Keya Paha | 31103 |
| Kimball | 31105 |
| Knox | 31107 |
| Lancaster | 31109 |
| Lincoln | 31111 |
| Logan | 31113 |
| Loup | 31115 |
| Madison | 31119 |
| McPherson | 31117 |
| Merrick | 31121 |
| Morrill | 31123 |
| Nance | 31125 |
| Nemaha | 31127 |
| Nuckolls | 31129 |
| Otoe | 31131 |
| Pawnee | 31133 |
| Perkins | 31135 |
| Phelps | 31137 |
| Pierce | 31139 |
| Platte | 31141 |
| Polk | 31143 |
| Red Willow | 31145 |
| Richardson | 31147 |
| Rock | 31149 |
| Saline | 31151 |
| Sarpy | 31153 |
| Saunders | 31155 |
| Scotts Bluff | 31157 |
| Seward | 31159 |
| Sheridan | 31161 |
| Sherman | 31163 |
| Sioux | 31165 |
| Stanton | 31167 |
| Thayer | 31169 |
| Thomas | 31171 |
| Thurston | 31173 |
| Valley | 31175 |
| Washington | 31177 |
| Wayne | 31179 |
| Webster | 31181 |
| Wheeler | 31183 |
| York | 31185 |
All codes are cited from United States Department of Agriculture [28].