Louisiana - Significance region: Local
| Chickama |
| China Grove |
| Chretien Point Plantation |
| Christ Episcopal Church |
| Christ Episcopal Church |
| Christ Episcopal Church and Cemetery |
| Church of St. Anne |
| Church of the Assumption of the Blessed Virgin Mary |
| Citizens Bank |
| Citizens Bank of Lafourche |
| City Hotel |
| City Park Golf Course |
| Claiborne Cottage Hotel |
| Clark Courts LA-4-3 |
| Clear Creek AME Church |
| Colfax Jail |
| Colorado Southern Railroad Depot |
| Comeaux House |
| Commercial Building |
| Community Rosenwald School |
| Como Plantation |
| Concordia Parish Courthouse |
| Congo Square |
| Cook, Herman Albert, House |
| Cook House |
| Cottingham House |
| Coushatta Bank Building |
| Cousin, Francois, House |
| Cousin, Francois, House |
| Crescent Plantation |
| Cross Lake Pumping and Filtration Plant |
| Crystal Grocery |
| Curtis, Nathaniel C., Jr. & Frances, House |
| Cushman House |
| Daboval, Emile L. Jr., House |
| D’Agostino Building |
| Daigle House |
| Daigleville School |
| D'Antonio, Guy J. and Rose Caruso, House |
| Dautreuil House |
| Davidson House |
| Dawson, John S., High School |
| Decareaux House |
| Delhi Municipal Baseball Park |
| Dellmon, Myrtle Groves Huie, House |
| Dendinger House |
| Denham Springs City Hall |
| Denham Springs Commercial Historic District |
| DeQuincy Colored High School Gym |
| DeRidder Commercial Historic District |
| DeRidder USO Building |
| Derouen House |
| Des Fosse, Dr. Jules Charles, House |
| Desire Plantation House |
| Deslattes House |
| Desobry Building |
| DeSoto Parish Courthouse |
| Dew Drop Inn |
| Dew Drop Social and Benevolent Hall |
| Division of St. John Historic District |
| Dixie Theatre |
| Dixon House |
| Dodd College President's Home |
| Donato, Martin, House |
| Dorvin House |
| Downtown Abbeville Historic District |
| Downtown Alexandria Commercial Historic District |
| Downtown Amite Historic District |
| Downtown Baton Rouge Historic District |
| Downtown Columbia Historic District |
| Downtown Delhi Historic District |
| Downtown Lafayette Civic Center |
| Downtown Leesville Historic District |
| Downtown Minden Historic District |
| Downtown Monroe Historic District |
| Downtown Monroe Historic District |
| Downtown New Iberia Commercial Historic District |
| Drake House |
| Drehr Place Historic District |
| Dryades Branch Library |
| Dubach, Fred B., House |
| Dubuisson, Edward Benjamin, House |
| Ducrest Building |
| Ducros, Dr. Louis A., House |
| Ducros Plantation House |
| Dufrocq School |
| Dugas House |
| Dulcito Plantation House |
| Dupleix House |
| Dupre, Jacques, House |
| Eagle Saloon Building |
| East Baton Rouge Parish Library |
| East Main Street Historic District |
| Eden |
| Edgewood Park Historic District |
| Elizabeth Hospital Building |
| Elrose |
| Elton United Methodist Church |
| Emile Bergeron Farmstead |
| Emilie Plantation House |
Data from United States Park Service and Wikidata
