Counties in Louisiana

• Acadia (7 historic properties)
• Allen (4 historic properties)
• Ascension (19 historic properties)
• Assumption (9 historic properties)
• Avoyelles (31 historic properties)
• Beauregard (13 historic properties)
• Bienville (12 historic properties)
• Bossier (6 historic properties)
• Caddo (68 historic properties)
• Calcasieu (18 historic properties)
• Caldwell (9 historic properties)
• Cameron (2 historic properties)
• Catahoula (13 historic properties)
• Claiborne (10 historic properties)
• Concordia (13 historic properties)
• De Soto (30 historic properties)
• East Baton Rouge (86 historic properties)
• East Carroll (8 historic properties)
• East Feliciana (32 historic properties)
• Evangeline (6 historic properties)
• Franklin (6 historic properties)
• Grant (4 historic properties)
• Iberia (31 historic properties)
• Iberville (23 historic properties)
• Jackson (5 historic properties)
• Jefferson (19 historic properties)
• Jefferson Davis (19 historic properties)
• La Salle (3 historic properties)
• Lafayette (34 historic properties)
• Lafourche (35 historic properties)
• Lincoln (28 historic properties)
• Livingston (12 historic properties)

• Madison (12 historic properties)
• Morehouse (9 historic properties)
• Natchitoches (34 historic properties)
• Orleans (150 historic properties)
• Ouachita (31 historic properties)
• Plaquemines (8 historic properties)
• Pointe Coupee (32 historic properties)
• Rapides (71 historic properties)
• Red River (3 historic properties)
• Richland (10 historic properties)
• Sabine (7 historic properties)
• St. Bernard (8 historic properties)
• St. Charles (6 historic properties)
• St. Helena (2 historic properties)
• St. James (21 historic properties)
• St. John The Baptist (16 historic properties)
• St. Landry (36 historic properties)
• St. Martin (25 historic properties)
• St. Mary (28 historic properties)
• St. Tammany (39 historic properties)
• Tangipahoa (34 historic properties)
• Tensas (10 historic properties)
• Terrebonne (17 historic properties)
• Union (10 historic properties)
• Vermilion (18 historic properties)
• Vernon (16 historic properties)
• Washington (15 historic properties)
• Webster (19 historic properties)
• West Baton Rouge (13 historic properties)
• West Carroll (2 historic properties)
• West Feliciana (32 historic properties)
• Winn (7 historic properties)