| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Lobdell | city | Louisiana | United States | 30.49 | -91.25 | 22 | |
| Lobdell Station | city | Louisiana | United States | 30.49 | -91.26 | 22 | |
| Loch Lomond | city | Louisiana | United States | 32.68 | -92.14 | 49 | |
| Lockhart | city | Louisiana | United States | 33.01 | -92.58 | 200 | |
| Lockhart | city | Louisiana | United States | 30.49 | -90.90 | 39 | |
| Lockmoor | city | Louisiana | United States | 30.24 | -93.29 | 9 | |
| Lockport | city | Louisiana | United States | 29.65 | -90.54 | 3 | |
| Lockport Heights | city | Louisiana | United States | 29.65 | -90.55 | 3 | |
| Loco | city | Louisiana | United States | 32.95 | -92.17 | 78 | |
| Locust Ridge | city | Louisiana | United States | 31.88 | -91.34 | 62 | |
| Lodi (historical) | city | Louisiana | United States | 30.36 | -92.57 | 29 | |
| Loe | city | Louisiana | United States | 32.24 | -92.82 | 190 | |
| Lofton | city | Louisiana | United States | 31.73 | -92.76 | 206 | |
| Log Cabin | city | Louisiana | United States | 32.83 | -91.88 | 114 | |
| Logansport | city | Louisiana | United States | 31.98 | -94.00 | 203 | |
| Loggy Bayou | city | Louisiana | United States | 32.20 | -93.44 | 137 | |
| Logtown | city | Louisiana | United States | 32.34 | -92.09 | 49 | |
| Loisel | city | Louisiana | United States | 29.94 | -91.69 | 13 | |
| Lone Pine | city | Louisiana | United States | 30.96 | -92.32 | 49 | |
| Lone Pine | city | Louisiana | United States | 30.00 | -93.63 | 3 | |
| Lone Star | city | Louisiana | United States | 29.93 | -90.34 | 6 | |
| Lone Star | city | Louisiana | United States | 30.10 | -91.22 | 3 | |
| Long Bridge | city | Louisiana | United States | 30.24 | -91.97 | 16 | |
| Long Bridge | city | Louisiana | United States | 31.01 | -92.02 | 55 | |
| Long Springs | city | Louisiana | United States | 32.67 | -93.34 | 180 | |
| Longacre | city | Louisiana | United States | 30.82 | -93.15 | 154 | |
| Longleaf | city | Louisiana | United States | 31.01 | -92.55 | 111 | |
| Longstraw | city | Louisiana | United States | 32.50 | -92.55 | 278 | |
| Longstreet | city | Louisiana | United States | 32.10 | -93.95 | 301 | |
| Longview | city | Louisiana | United States | 32.26 | -91.58 | 75 | |
| Longville | city | Louisiana | United States | 30.61 | -93.23 | 134 | |
| Longwood | city | Louisiana | United States | 30.48 | -91.09 | 55 | |
| Longwood | city | Louisiana | United States | 30.34 | -91.14 | 19 | |
| Longwood | city | Louisiana | United States | 32.56 | -93.98 | 246 | |
| Longwood Court | city | Louisiana | United States | 30.45 | -91.15 | 49 | |
| Longwood Village | city | Louisiana | United States | 32.48 | -93.86 | 177 | |
| Loquer (historical) | city | Louisiana | United States | 29.96 | -90.32 | 6 | |
| Loranger | city | Louisiana | United States | 30.64 | -90.40 | 118 | |
| Loreauville | city | Louisiana | United States | 30.06 | -91.74 | 16 | |
| Lorelein | city | Louisiana | United States | 32.09 | -91.55 | 55 | |
| Loring | city | Louisiana | United States | 31.60 | -93.60 | 249 | |
| Lorraine | city | Louisiana | United States | 32.47 | -94.04 | 259 | |
| Lorraine | city | Louisiana | United States | 30.51 | -90.28 | 32 | |
| Los Adaes (historical) | city | Louisiana | United States | 31.71 | -93.29 | 196 | |
| Lost Bayou Mobile Home Park | city | Louisiana | United States | 29.64 | -90.76 | 9 | |
| Lottie | city | Louisiana | United States | 30.56 | -91.64 | 16 | |
| Lotus | city | Louisiana | United States | 31.49 | -93.13 | 196 | |
| Loudon | city | Louisiana | United States | 30.51 | -91.14 | 59 | |
| Louisville (historical) | city | Louisiana | United States | 30.22 | -91.00 | 19 | |
| Love Estates | city | Louisiana | United States | 32.53 | -91.99 | 72 | |
| Lower Garden District | city | Louisiana | United States | 29.92 | -90.08 | 3 | |
| Lower Texas | city | Louisiana | United States | 29.83 | -91.04 | 3 | |
| Lower Vacherie | city | Louisiana | United States | 29.94 | -90.68 | 3 | |
| Lowlands | city | Louisiana | United States | 29.77 | -90.90 | 3 | |
| Lowry | city | Louisiana | United States | 30.02 | -92.77 | 3 | |
| Loyd | city | Louisiana | United States | 31.04 | -92.36 | 52 | |
| Lozes | city | Louisiana | United States | 30.04 | -91.96 | 26 |