Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Ascension High School | School | 6 | Ascension | 30 06 08 N | 090 59 06 W |
| Ascension Hospital | Hospital | 3 | Ascension | 30 13 29 N | 090 54 54 W |
| Ascension of Our Lord Catholic Church | Church | 3 | St. John the Baptist | 30 05 04 N | 090 28 52 W |
| Ascension of Our Lord Catholic Church | Church | 2 | St. John the Baptist | 30 05 04 N | 090 28 54 W |
| Ascension Parish | Civil | 2 | Ascension | 30 13 01 N | 090 54 00 W |
| Ascension Parish Court House | Building | 3 | Ascension | 30 13 35 N | 090 54 45 W |
| Ascension Parish Library | Building | 3 | Ascension | 30 13 34 N | 090 54 47 W |
| Ash Bayou | Gut | 41 | Red River | 32 11 33 N | 093 30 44 W |
| Ash Bayou | Stream | | Natchitoches | 31 43 16 N | 093 06 30 W |
| Ash Brake Bottom | Bend | 27 | Natchitoches | 31 35 20 N | 092 49 18 W |
| Ash Slough | Gut | 21 | Caldwell | 32 05 11 N | 091 57 20 W |
| Ash Slough | Gut | 19 | Franklin | 32 09 01 N | 091 43 55 W |
| Ash Slough | Gut | 26 | Richland | 32 25 25 N | 091 33 00 W |
| Ash Slough | Stream | | Franklin | 32 06 56 N | 091 42 49 W |
| Ash Slough | Stream | | Richland | 32 20 36 N | 091 47 52 W |
| Ash Slu | Stream | | Franklin | 32 06 46 N | 091 49 40 W |
| Ashford Cemetery | Cemetery | 15 | Evangeline | 30 31 28 N | 092 28 26 W |
| Ashland | Populated Place | 15 | Concordia | 31 17 10 N | 091 34 52 W |
| Ashland | Populated Place | 69 | Natchitoches | 32 08 31 N | 093 05 54 W |
| Ashland | Populated Place | 22 | Tensas | 31 58 30 N | 091 23 32 W |
| Ashland | Populated Place | 1 | Terrebonne | 29 31 47 N | 090 40 32 W |
| Ashland Canal | Canal | 0 | Terrebonne | 29 32 06 N | 090 41 11 W |
| Ashland Cemetery | Cemetery | 17 | Concordia | 31 17 04 N | 091 35 49 W |
| Ashland Oil Field | Oilfield | 69 | Natchitoches | 32 08 10 N | 093 08 57 W |
| Ashland Plantation (historical) | Locale | 7 | West Baton Rouge | 30 32 14 N | 091 18 10 W |
| Ashland Post Office | Post Office | 68 | Natchitoches | 32 08 30 N | 093 05 55 W |
| Ashley (subdivision) | Populated Place | 14 | East Baton Rouge | 30 27 51 N | 091 02 40 W |
| Ashley Landing | Locale | 7 | Concordia | 31 22 35 N | 091 34 16 W |
| Ashley Landing | Locale | 18 | Madison | 32 26 09 N | 091 03 47 W |
| Ashley Plantation | Locale | 16 | Concordia | 31 26 09 N | 091 32 10 W |
| Ashleys Branch | Stream | | Tangipahoa | 30 55 12 N | 090 29 36 W |
| Ashly | Populated Place | 27 | Madison | 32 26 30 N | 091 07 23 W |
| Ashridge (historical) | Populated Place | 13 | Concordia | 31 04 06 N | 091 37 49 W |
| Ashton | Populated Place | 2 | St. Mary | 29 50 10 N | 091 36 29 W |
| Ashton Bridge | Bridge | 30 | East Carroll | 32 59 34 N | 091 15 43 W |
| Ashton School (historical) | School | 33 | East Carroll | 32 59 29 N | 091 13 41 W |
| Ashville (historical) | Populated Place | 30 | Tensas | 32 09 11 N | 091 10 45 W |
| Ashwood Landing | Locale | 16 | Tensas | 32 08 46 N | 091 10 25 W |
| Ashworth Slough | Gut | 4 | Calcasieu | 30 19 21 N | 093 41 50 W |
| Asia Baptist Church | Church | -1 | Orleans | 29 59 42 N | 090 04 44 W |
| ASLH Helipad | Airport | 14 | Acadia | 30 23 43 N | 092 12 38 W |
| Asphodel Cemetery | Cemetery | 65 | East Feliciana | 30 46 37 N | 091 12 49 W |
| Asphodel Plantation | Locale | 52 | East Feliciana | 30 46 51 N | 091 13 25 W |
| Assembly Christian School | School | 6 | Iberia | 30 00 31 N | 091 50 41 W |
| Assembly Christian School | School | 9 | Lafayette | 30 12 12 N | 092 01 57 W |
| Assembly of God Church | Church | 5 | Ascension | 30 16 23 N | 090 55 14 W |
| Assembly of God Church | Church | 26 | East Carroll | 32 36 39 N | 091 23 38 W |
| Assembly of God Church | Church | 5 | Iberia | 30 00 17 N | 091 47 49 W |
| Assembly of God Church | Church | 2 | Lafourche | 29 43 12 N | 090 35 56 W |
| Assembly of God Church | Church | 38 | Morehouse | 32 58 52 N | 091 40 51 W |
| Assembly of God Church | Church | 35 | West Carroll | 32 47 40 N | 091 30 51 W |
| Assembly of God Church | Church | 29 | West Carroll | 32 44 25 N | 091 31 08 W |
| Assembly of God Church (historical) | Church | 22 | Franklin | 31 59 60 N | 091 40 18 W |
| Assembly of God Tabernacle | Church | 1 | St. Bernard | 29 57 19 N | 089 57 33 W |
| Assumption General Heliport | Airport | 5 | Assumption | 29 57 26 N | 091 02 01 W |
| Assumption General Hospital | Hospital | 5 | Assumption | 29 57 23 N | 091 02 01 W |
| Assumption Middle Magnet School | School | 6 | Assumption | 29 56 46 N | 091 01 34 W |
| Assumption Parish | Civil | 1 | Assumption | 29 52 33 N | 091 05 00 W |
| Assumption Parish Courthouse | Building | 6 | Assumption | 29 56 29 N | 091 01 28 W |
| Assumption Senior High School | School | 6 | Assumption | 29 56 48 N | 091 01 37 W |
| Asury School (historical) | School | 97 | East Feliciana | 30 55 59 N | 091 00 32 W |
| Aswell Lake | Reservoir | 21 | Evangeline | 30 47 07 N | 092 18 06 W |
| Asylum Creek | Stream | | East Feliciana | 30 49 28 N | 091 14 04 W |
| Atchafalaya | Populated Place | 7 | St. Martin | 30 20 46 N | 091 43 23 W |
| Atchafalaya Basin Floodway | Flat | 4 | St. Martin | 30 11 41 N | 091 33 42 W |
| Atchafalaya Basin Main Channel | Canal | 2 | St. Martin | 30 10 44 N | 091 31 33 W |
| Atchafalaya Bay | Bay | 2 | St. Mary | 29 25 34 N | 091 18 53 W |
| Atchafalaya Cemetery | Cemetery | 12 | St. Landry | 30 47 31 N | 091 47 21 W |
| Atchafalaya Church | Church | 14 | St. Landry | 30 47 31 N | 091 47 20 W |
| Atchafalaya Delta State Wildlife Management Area | Park | 0 | St. Mary | 29 25 10 N | 091 18 28 W |
| Atchafalaya National Wildlife Refuge | Reserve | 5 | Pointe Coupee | 30 30 25 N | 091 36 25 W |
| Atchafalaya River | Stream | | St. Martin | 30 17 05 N | 091 40 19 W |
| Athens | Populated Place | 92 | Claiborne | 32 39 02 N | 093 01 33 W |
| Athens Elementary School | School | 102 | Claiborne | 32 39 02 N | 093 01 12 W |
| Athens Gas Field | Oilfield | 105 | Claiborne | 32 40 53 N | 093 01 26 W |
| Athens High School | School | 93 | Claiborne | 32 38 41 N | 093 01 08 W |
| Athens Lookout Tower | Tower | 153 | Claiborne | 32 39 36 N | 093 03 35 W |
| Athens Post Office | Post Office | 94 | Claiborne | 32 39 03 N | 093 01 33 W |
| Atherton | Populated Place | 30 | East Carroll | 32 41 54 N | 091 10 13 W |
| Atherton Towhead | Bar | 29 | East Carroll | 32 40 45 N | 091 09 00 W |
| Athlone | Populated Place | 18 | Concordia | 31 36 38 N | 091 44 15 W |
| Athlone Cemetery | Cemetery | 17 | Concordia | 31 36 44 N | 091 44 12 W |
| Atkins | Populated Place | 46 | Bossier | 32 18 35 N | 093 30 54 W |
| Atkins Cemetery | Cemetery | 128 | Claiborne | 32 40 45 N | 093 02 30 W |
| Atkins Elementary School | School | 66 | Caddo | 32 26 10 N | 093 45 29 W |
| Atkins Gas Field | Oilfield | 46 | Bossier | 32 19 06 N | 093 32 01 W |
| Atkins Park | Park | 55 | Caddo | 32 29 04 N | 093 48 01 W |
| Atkinson Memorial Presbyterian Church | Church | 2 | St. Mary | 29 41 46 N | 091 12 15 W |
| Atlanta | Populated Place | 70 | Winn | 31 48 19 N | 092 44 18 W |
| Atlanta Gas Field | Oilfield | 80 | Winn | 31 50 07 N | 092 42 46 W |
| Atlanta Post Office | Post Office | 71 | Winn | 31 48 23 N | 092 44 14 W |
| Atlanta School | School | 77 | Winn | 31 48 24 N | 092 43 59 W |
| Atlas Park | Park | 65 | Caddo | 32 27 48 N | 093 47 16 W |
| Atley Donaldson Pond Dam | Dam | 59 | Lincoln | 32 36 19 N | 092 27 31 W |
| Atonement Lutheran Church | Church | -1 | Jefferson | 30 00 19 N | 090 12 39 W |
| Atonement School | School | -1 | Jefferson | 30 00 23 N | 090 12 37 W |
| Attakapas Canal | Populated Place | 2 | Assumption | 29 53 31 N | 091 05 28 W |
| Attakapas Island State Wildlife Managment Area | Park | 3 | St. Mary | 29 55 01 N | 091 27 05 W |
| Attakapas Landing | Populated Place | 1 | Assumption | 29 51 04 N | 091 06 11 W |
| Atteles Cemetery | Cemetery | 18 | Evangeline | 30 36 57 N | 092 15 43 W |
| Aubin | Populated Place | 13 | East Baton Rouge | 30 25 10 N | 091 03 47 W |
| Aubrey | Populated Place | 22 | Tensas | 31 55 56 N | 091 19 14 W |
| Aubrey Oil and Gas Field | Oilfield | 18 | Tensas | 31 55 33 N | 091 19 54 W |
| Audrey Park | Populated Place | 64 | Caddo | 32 33 17 N | 093 49 45 W |
| Audubon | Populated Place | 12 | St. Tammany | 30 24 33 N | 089 47 02 W |
| Audubon Creek | Stream | | St. Tammany | 30 24 42 N | 089 45 27 W |
| Audubon Elementary School | School | 14 | East Baton Rouge | 30 26 45 N | 091 03 50 W |
| Audubon Montessori School | School | | Orleans | 29 56 03 N | 090 07 48 W |
| Audubon Park | Park | 3 | Orleans | 29 55 51 N | 090 07 35 W |
| Audubon Park | Populated Place | 29 | Ouachita | 32 35 14 N | 091 58 53 W |