County FIPS
- 22101 : St. Mary Parish
- 22103 : St. Tammany Parish
- 22105 : Tangipahoa Parish
- 22107 : Tensas Parish
- 22109 : Terrebonne Parish
- 22111 : Union Parish
- 22113 : Vermilion Parish
- 22115 : Vernon Parish
- 22117 : Washington Parish
- 22119 : Webster Parish
- 22121 : West Baton Rouge Parish
- 22123 : West Carroll Parish
- 22125 : West Feliciana Parish
- 22127 : Winn Parish