| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| La Barge | city | Wyoming | United States | 42.26 | -110.19 | 6709 | |
| La Grange | city | Wyoming | United States | 41.64 | -104.16 | 4599 | |
| Lake | city | Wyoming | United States | 44.56 | -110.40 | 7782 | |
| Lambert | city | Wyoming | United States | 41.62 | -105.12 | 6197 | |
| Lamont | city | Wyoming | United States | 42.22 | -107.48 | 6709 | |
| Lance Creek | city | Wyoming | United States | 43.03 | -104.64 | 4438 | |
| Lander | city | Wyoming | United States | 42.83 | -108.73 | 5393 | |
| Laramie | city | Wyoming | United States | 41.31 | -105.59 | 7549 | |
| Last Crossing Ford Number 9 | city | Wyoming | United States | 42.38 | -108.72 | 7549 | |
| Leahy Place | city | Wyoming | United States | 42.51 | -105.94 | 8389 | |
| Leckie | city | Wyoming | United States | 42.57 | -109.28 | 8389 | |
| Leefe | city | Wyoming | United States | 41.81 | -111.02 | 6709 | |
| Leiter | city | Wyoming | United States | 44.72 | -106.27 | 4189 | |
| Leo | city | Wyoming | United States | 42.25 | -106.80 | 6197 | |
| Lightning Flat (historical) | city | Wyoming | United States | 44.99 | -105.04 | 4189 | |
| Linch | city | Wyoming | United States | 43.61 | -106.20 | 5029 | |
| Linden | city | Wyoming | United States | 44.32 | -104.60 | 4399 | |
| Lingle | city | Wyoming | United States | 42.14 | -104.35 | 4189 | |
| Linstead Place | city | Wyoming | United States | 43.58 | -106.52 | 5029 | |
| Little America | city | Wyoming | United States | 41.54 | -109.86 | 6709 | |
| Little Medicine | city | Wyoming | United States | 42.38 | -105.98 | 7549 | |
| Lone Tree Crossing | city | Wyoming | United States | 44.45 | -108.70 | 5029 | |
| Lonetree | city | Wyoming | United States | 41.05 | -110.15 | 7575 | |
| Lookout | city | Wyoming | United States | 41.67 | -105.80 | 7549 | |
| Lost Cabin | city | Wyoming | United States | 43.29 | -107.63 | 5419 | |
| Lost Springs | city | Wyoming | United States | 42.77 | -104.93 | 5029 | |
| Lovell | city | Wyoming | United States | 44.84 | -108.39 | 4189 | |
| Lucerne | city | Wyoming | United States | 43.73 | -108.18 | 4320 | |
| Lusk | city | Wyoming | United States | 42.76 | -104.45 | 5029 | |
| Lyman | city | Wyoming | United States | 41.33 | -110.29 | 6709 | |
| Lysite | city | Wyoming | United States | 43.27 | -107.69 | 5360 |