Louisiana - Significance region: Local
| 1309 Harmony Street |
| 1903 Clinton High School |
| 1937 Iowa High School |
| 1938 Clinton High School |
| 1939 St. Bernard Parish Courthouse |
| Abbeville Commercial Historic District |
| Abbeville Residential Historic District |
| Abita Springs Pavilion |
| Adams, Charles P., House |
| Agudath Achim Anshe Sfard Synagogue |
| Aillet House |
| Alabama Methodist Church |
| A La Bonne Veillee |
| Albania Plantation House |
| Alesia |
| Alexandria Hall-Louisiana College |
| Alexandria Post-War Suburbs Historic District |
| Alexandria Public Library, Old |
| Algiers Point |
| Alice |
| Alice C Planation House |
| Allen-Barringer House |
| Allen Parish Courthouse |
| All Saints Church and School |
| All Saints Episcopal Church |
| American Chicle Company Building |
| Angelus |
| Antonia |
| Arabella Station |
| Arcade Theater |
| Arcadia Colored High School Historic District |
| Arceneaux, Louis J. and Marie Amelia, House |
| Arcola Presbyterian Church |
| Argyle |
| Arizona Methodist Church |
| Assumption Parish Courthouse and Jail |
| Atkinson Memorial Presbyterian Church |
| Audubon Plantation House |
| Autrey House |
| Avondale Plantation Home |
| Babington, Robert H., House |
| Babington, Thomas M., House |
| Bacas House |
| Bagatelle Plantation House |
| Bailey Hotel |
| Bailey Theatre |
| Baker High School Auditorium |
| Baker Presbyterian Church |
| Bank of Addis |
| Bank of Grand Cane |
| Bank of Gueydan |
| Bank of Lafourche Building |
| Bank of Lockport |
| Bank of Minden |
| Bank of New Orleans (BNO) Building |
| Bank of Scott |
| Bank of Slaughter |
| Bank of Ville Platte |
| Bank of Webster |
| Barret Elementary School |
| Bastrop High School |
| Baton Rouge Electric Company (BRECO) Public Utilities Complex |
| Baton Rouge High School |
| Baton Rouge Junior High School |
| Baton Rouge Waterworks Company Standpipe |
| Battleground Plantation |
| Bayou Boeuf Elementary School |
| Bayou Boeuf Settlement |
| Bayou Paul Colored School |
| Bayou Plaquemine Lock |
| Bayou Rouge Baptist Church |
| Bayouside |
| Bayside |
| Bay Tree |
| Beard Congregational Church |
| Bear Lake Club, Ltd. Clubhouse |
| Beauregard Parish Courthouse |
| Beauregard Parish Training School |
| Beauregard Town Historic District |
| Belisle Building |
| Belle Alliance |
| Bennett Plantation House |
| Bentley Hotel |
| Bergeron, Jean Baptiste, House |
| Bergeron, Valmont, House |
| Bernard, Joseph D., House |
| Bernard, L.J. Hardware Store |
| Bernice Civic Clubhouse |
| Bertus-Ducatel House |
| Bethune Junior-Senior High School |
| Billeaud House |
| Billeaud, Martial, Jr., House |
| Birg House |
| Bittersweet |
| Bland House |
| Blanks House |
| Block, J. S., Building |
| Blue Plate Building |
| Blythewood |
| Boatner House |
Data from United States Park Service and Wikidata
