The list is the FIPS codes of Louisiana counties. All the FIPS codes are starting with 22.
| County | FIPS Code |
| Acadia | 22001 |
| Allen | 22003 |
| Ascension | 22005 |
| Assumption | 22007 |
| Avoyelles | 22009 |
| Beauregard | 22011 |
| Bienville | 22013 |
| Bossier | 22015 |
| Caddo | 22017 |
| Calcasieu | 22019 |
| Caldwell | 22021 |
| Cameron | 22023 |
| Catahoula | 22025 |
| Claiborne | 22027 |
| Concordia | 22029 |
| De Soto | 22031 |
| East Baton Rouge | 22033 |
| East Carroll | 22035 |
| East Feliciana | 22037 |
| Evangeline | 22039 |
| Franklin | 22041 |
| Grant | 22043 |
| Iberia | 22045 |
| Iberville | 22047 |
| Jackson | 22049 |
| Jefferson | 22051 |
| Jefferson Davis | 22053 |
| La Salle | 22059 |
| Lafayette | 22055 |
| Lafourche | 22057 |
| Lincoln | 22061 |
| Livingston | 22063 |
| Madison | 22065 |
| Morehouse | 22067 |
| Natchitoches | 22069 |
| Orleans | 22071 |
| Ouachita | 22073 |
| Plaquemines | 22075 |
| Pointe Coupee | 22077 |
| Rapides | 22079 |
| Red River | 22081 |
| Richland | 22083 |
| Sabine | 22085 |
| St Bernard | 22087 |
| St Charles | 22089 |
| St Helena | 22091 |
| St James | 22093 |
| St John the Baptist | 22095 |
| St Landry | 22097 |
| St Martin | 22099 |
| St Mary | 22101 |
| St Tammany | 22103 |
| Tangipahoa | 22105 |
| Tensas | 22107 |
| Terrebonne | 22109 |
| Union | 22111 |
| Vermilion | 22113 |
| Vernon | 22115 |
| Washington | 22117 |
| Webster | 22119 |
| West Baton Rouge | 22121 |
| West Carroll | 22123 |
| West Feliciana | 22125 |
| Winn | 22127 |
All codes are cited from United States Department of Agriculture [28].