Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Lafon Plantation (historical) | Locale | 0 | Orleans | 30 02 01 N | 089 55 03 W |
| Lafourche | Populated Place | 4 | Lafourche | 29 46 02 N | 090 45 57 W |
| Lafourche Crossing Oil and Gas Field | Oilfield | 1 | Lafourche | 29 44 21 N | 090 44 42 W |
| Lafourche Cut-off | Bend | 21 | Richland | 32 36 38 N | 091 41 56 W |
| Lafourche Juvenile Justice Facility | Building | 1 | Lafourche | 29 46 29 N | 090 50 40 W |
| Lafourche Parish | Civil | 1 | Lafourche | 29 34 01 N | 090 23 00 W |
| Lafourche Parish Courthouse | Building | 4 | Lafourche | 29 47 52 N | 090 49 11 W |
| Lafourche Plaza Shopping Center | Locale | 4 | Lafourche | 29 48 07 N | 090 50 55 W |
| Lafreniere Park | Park | -3 | Jefferson | 29 59 55 N | 090 12 44 W |
| Lafrere Cemetery | Cemetery | 3 | St. Tammany | 30 18 45 N | 089 56 13 W |
| Lafton Home for Boys (historical) | Building | 0 | Orleans | 30 00 39 N | 090 00 20 W |
| Lagan | Populated Place | 3 | St. James | 29 58 32 N | 090 48 52 W |
| Lagas | Populated Place | 46 | Bossier | 32 21 32 N | 093 33 46 W |
| Lagattuta Park | Park | 1 | St. Charles | 29 54 52 N | 090 21 03 W |
| Lagonda | Populated Place | 2 | St. Mary | 29 40 43 N | 091 16 48 W |
| Lagoon Brady | Lake | 6 | St. Bernard | 29 49 39 N | 089 32 44 W |
| Lagoon Giraud | Lake | 4 | St. Bernard | 29 51 17 N | 089 31 27 W |
| Lagoon Maxent | Gut | -1 | Orleans | 30 03 23 N | 089 53 31 W |
| Lahaye Lake | Reservoir | 20 | Evangeline | 30 40 43 N | 092 24 47 W |
| Lahaye Lake Dam | Dam | 20 | Evangeline | 30 40 43 N | 092 24 47 W |
| Laird Branch | Stream | | Natchitoches | 31 32 58 N | 093 07 26 W |
| Lake | Populated Place | 3 | Ascension | 30 17 60 N | 090 51 10 W |
| Lake Ameda | Lake | 0 | St. Bernard | 29 48 04 N | 089 39 56 W |
| Lake Andre | Bay | 0 | Lafourche | 29 19 07 N | 090 04 29 W |
| Lake Antoinne | Lake | 0 | Orleans | 30 05 37 N | 089 53 47 W |
| Lake Arthur | Lake | -3 | Vermilion | 30 03 19 N | 092 42 17 W |
| Lake Arthur | Populated Place | 2 | Jefferson Davis | 30 04 51 N | 092 40 18 W |
| Lake Arthur Elementary School | School | 3 | Jefferson Davis | 30 05 06 N | 092 40 37 W |
| Lake Arthur High School | School | 5 | Jefferson Davis | 30 05 49 N | 092 40 10 W |
| Lake Arthur Oil and Gas Field | Oilfield | 3 | Jefferson Davis | 30 09 53 N | 092 44 45 W |
| Lake Arthur Post Office | Post Office | 2 | Jefferson Davis | 30 04 45 N | 092 40 38 W |
| Lake Athanasio | Lake | 0 | St. Bernard | 29 44 09 N | 089 27 24 W |
| Lake Avolley | Swamp | 14 | Catahoula | 31 17 04 N | 091 51 34 W |
| Lake Barre | Lake | 3 | Terrebonne | 29 15 20 N | 090 30 49 W |
| Lake Barre Oil and Gas Field | Oilfield | 5 | Lafourche | 29 12 27 N | 090 20 33 W |
| Lake Barre Oil Field | Oilfield | 5 | Terrebonne | 29 13 20 N | 090 29 24 W |
| Lake Batola | Lake | 2 | Plaquemines | 29 40 43 N | 089 48 44 W |
| Lake Bayou | Gut | 10 | Pointe Coupee | 30 48 51 N | 091 47 09 W |
| Lake Bayou School (historical) | School | 11 | Pointe Coupee | 30 48 56 N | 091 47 34 W |
| Lake Bebe | Lake | 9 | Vermilion | 29 46 04 N | 092 06 22 W |
| Lake Becasse | Lake | -4 | Terrebonne | 29 13 28 N | 090 48 17 W |
| Lake Benoit | Lake | 2 | Cameron | 29 49 28 N | 092 44 31 W |
| Lake Bethlehem Church | Church | 59 | Caddo | 32 32 46 N | 093 49 24 W |
| Lake Bigeux | Lake | 2 | St. Martin | 30 20 08 N | 091 44 33 W |
| Lake Billiot | Lake | 6 | Terrebonne | 29 20 18 N | 090 23 32 W |
| Lake Bistineau | Reservoir | 43 | Bossier | 32 19 35 N | 093 25 34 W |
| Lake Bistineau Dam | Dam | 43 | Bossier | 32 19 35 N | 093 25 34 W |
| Lake Bistineau Gas Field | Oilfield | 66 | Bienville | 32 23 02 N | 093 21 40 W |
| Lake Bistineau State Park | Park | 48 | Webster | 32 26 39 N | 093 22 50 W |
| Lake Black Dog | Lake | 19 | Tensas | 31 53 11 N | 091 25 54 W |
| Lake Blanc | Lake | 12 | Iberia | 29 34 25 N | 091 47 47 W |
| Lake Boeuf | Lake | 0 | Lafourche | 29 47 31 N | 090 37 47 W |
| Lake Boeuf Gas Field | Oilfield | 1 | Lafourche | 29 46 51 N | 090 36 06 W |
| Lake Borgne | Bay | -3 | St. Bernard | 30 01 41 N | 089 37 03 W |
| Lake Boudreaux | Lake | 0 | Terrebonne | 29 24 21 N | 090 39 31 W |
| Lake Boudreaux Gas Field | Oilfield | 0 | Terrebonne | 29 24 23 N | 090 37 19 W |
| Lake Breeze | Lake | 9 | West Feliciana | 30 51 16 N | 091 38 55 W |
| Lake Bridge | Locale | 2 | Terrebonne | 29 39 54 N | 091 02 26 W |
| Lake Bruin | Lake | 19 | Tensas | 32 00 22 N | 091 13 14 W |
| Lake Bruin | Populated Place | 21 | Tensas | 31 59 17 N | 091 15 22 W |
| Lake Bruin State Park | Park | 18 | Tensas | 31 57 38 N | 091 12 04 W |
| Lake Buhlow | Lake | 24 | Rapides | 31 20 05 N | 092 26 43 W |
| Lake Bully Camp | Lake | 0 | Lafourche | 29 26 47 N | 090 24 13 W |
| Lake Calebasse | Bay | 8 | St. Bernard | 29 41 20 N | 089 34 03 W |
| Lake Campo | Lake | 6 | Plaquemines | 29 39 52 N | 089 38 10 W |
| Lake Campo Gas Field | Oilfield | -7 | Plaquemines | 29 39 04 N | 089 36 54 W |
| Lake Campo Pass | Channel | 4 | Plaquemines | 29 38 55 N | 089 38 30 W |
| Lake Carmel (subdivision) | Populated Place | -2 | Orleans | 30 03 15 N | 089 57 18 W |
| Lake Cataouatche | Lake | 0 | St. Charles | 29 50 34 N | 090 14 00 W |
| Lake Catherine | Populated Place | 0 | Orleans | 30 06 52 N | 089 42 33 W |
| Lake Catherine | Reservoir | 16 | Ouachita | 32 19 17 N | 092 05 39 W |
| Lake Chapeau | Lake | 2 | Terrebonne | 29 18 08 N | 091 15 21 W |
| Lake Charles | Lake | 0 | Calcasieu | 30 13 46 N | 093 14 05 W |
| Lake Charles | Populated Place | 4 | Calcasieu | 30 13 36 N | 093 13 03 W |
| Lake Charles Air Force Station (historical) | Military (Historical) | | Calcasieu | 30 11 04 N | 093 10 30 W |
| Lake Charles Army Air Field (historical) | Military (Historical) | | Calcasieu | 30 13 01 N | 093 09 24 W |
| Lake Charles Christian School | School | 4 | Calcasieu | 30 10 37 N | 093 11 51 W |
| Lake Charles City Hall | Building | 6 | Calcasieu | 30 13 34 N | 093 13 03 W |
| Lake Charles Civic Center | Building | 3 | Calcasieu | 30 13 43 N | 093 13 17 W |
| Lake Charles Country Club | Locale | 5 | Calcasieu | 30 10 25 N | 093 16 55 W |
| Lake Charles Heliport | Airport | 4 | Calcasieu | 30 08 14 N | 093 10 59 W |
| Lake Charles Hilton Heliport | Airport | 2 | Calcasieu | 30 14 08 N | 093 13 23 W |
| Lake Charles Historic District | Park | 4 | Calcasieu | 30 13 30 N | 093 12 45 W |
| Lake Charles Hospital | Hospital | 4 | Calcasieu | 30 12 17 N | 093 11 49 W |
| Lake Charles Memorial Heliport | Airport | 4 | Calcasieu | 30 12 18 N | 093 11 51 W |
| Lake Charles Office Heliport | Airport | 2 | Calcasieu | 30 06 52 N | 093 12 44 W |
| Lake Charles Post Office | Post Office | 4 | Calcasieu | 30 13 35 N | 093 12 47 W |
| Lake Charles Radio Range Station | Locale | 5 | Calcasieu | 30 10 34 N | 093 08 51 W |
| Lake Charles Regional Airport | Airport | 4 | Calcasieu | 30 07 33 N | 093 13 23 W |
| Lake Charles Yacht Club | Locale | 1 | Calcasieu | 30 14 10 N | 093 14 29 W |
| Lake Charles/Boston High School | School | 4 | Calcasieu | 30 13 12 N | 093 12 12 W |
| Lake Cheniere | Lake | 0 | Lafourche | 29 24 26 N | 090 21 50 W |
| Lake Chicot | Lake | 8 | St. Martin | 30 04 45 N | 091 27 40 W |
| Lake Chicot | Reservoir | 15 | Evangeline | 30 49 32 N | 092 16 07 W |
| Lake Chicot | Swamp | 30 | Natchitoches | 31 40 28 N | 093 04 07 W |
| Lake Chicot Oil and Gas Field | Oilfield | 2 | St. Martin | 30 04 14 N | 091 29 28 W |
| Lake Chien | Bay | -8 | Terrebonne | 29 20 16 N | 090 26 38 W |
| Lake Claiborne | Reservoir | 56 | Claiborne | 32 44 26 N | 092 54 15 W |
| Lake Claiborne Dam | Dam | 56 | Claiborne | 32 44 26 N | 092 54 15 W |
| Lake Claiborne State Park | Park | 70 | Claiborne | 32 43 24 N | 092 55 14 W |
| Lake Clause | Lake | 5 | West Baton Rouge | 30 34 09 N | 091 20 29 W |
| Lake Cleodis | Lake | 0 | Vermilion | 29 45 48 N | 092 05 01 W |
| Lake Cock | Lake | 6 | Vermilion | 29 47 53 N | 092 00 23 W |
| Lake Cocodrie | Lake | 0 | Terrebonne | 29 36 27 N | 090 58 41 W |
| Lake Cocodrie | Swamp | 27 | Natchitoches | 31 34 20 N | 092 49 54 W |
| Lake Comeaux | Lake | 8 | St. Martin | 30 23 41 N | 091 38 49 W |
| Lake Concordia | Lake | 15 | Concordia | 31 38 56 N | 091 31 43 W |
| Lake Coquille | Lake | 7 | St. Bernard | 29 44 14 N | 089 34 41 W |
| Lake Cove | Populated Place | 27 | Evangeline | 30 55 04 N | 092 27 05 W |
| Lake Cove School (historical) | School | 33 | Evangeline | 30 56 19 N | 092 26 37 W |