| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Laffertys Corner | city | Delaware | United States | 39.15 | -75.49 | 3 | |
| Lake Forest Mobile Home Est | city | Delaware | United States | 38.98 | -75.57 | 39 | |
| Lake Pines | city | Delaware | United States | 38.56 | -75.55 | 19 | |
| Lake Shores | city | Delaware | United States | 38.68 | -75.60 | 19 | |
| Lakecroft II | city | Delaware | United States | 39.65 | -75.66 | 49 | |
| Lakeshore Village | city | Delaware | United States | 39.24 | -75.59 | 16 | |
| Lakeside Estates Mobile Home Park | city | Delaware | United States | 38.63 | -75.59 | 22 | |
| Lakeside Manor | city | Delaware | United States | 38.56 | -75.56 | 19 | |
| Lakeview Estates | city | Delaware | United States | 38.58 | -75.34 | 29 | |
| Lakewind | city | Delaware | United States | 39.03 | -75.51 | 6 | |
| Lakewind III | city | Delaware | United States | 39.03 | -75.51 | 6 | |
| Lakewood | city | Delaware | United States | 38.65 | -75.55 | 19 | |
| Lakewood | city | Delaware | United States | 38.91 | -75.46 | 22 | |
| Lakewood Development | city | Delaware | United States | 38.91 | -75.45 | 19 | |
| Lamatan I | city | Delaware | United States | 39.76 | -75.74 | 298 | |
| Lamatan II | city | Delaware | United States | 39.76 | -75.75 | 298 | |
| Lambeth Riding | city | Delaware | United States | 39.77 | -75.70 | 298 | |
| Lancashire | city | Delaware | United States | 39.82 | -75.49 | 255 | |
| Lancaster Court | city | Delaware | United States | 39.75 | -75.60 | 98 | |
| Lancaster Village | city | Delaware | United States | 39.74 | -75.59 | 88 | |
| Land of Pleasant Living | city | Delaware | United States | 38.56 | -75.11 | 6 | |
| Landenberg Junction | city | Delaware | United States | 39.73 | -75.62 | 88 | |
| Landers Park | city | Delaware | United States | 39.69 | -75.57 | 32 | |
| Landlith | city | Delaware | United States | 39.74 | -75.53 | 26 | |
| Lantern Lane Mobile Villa | city | Delaware | United States | 38.46 | -75.16 | 19 | |
| Larchmont | city | Delaware | United States | 39.80 | -75.67 | 285 | |
| Larence Cordrey Subdivision | city | Delaware | United States | 38.63 | -75.26 | 16 | |
| Latimer Estates | city | Delaware | United States | 39.73 | -75.57 | 75 | |
| Laurel | city | Delaware | United States | 38.56 | -75.57 | 19 | |
| Laurel Bend | city | Delaware | United States | 39.14 | -75.51 | 3 | |
| Laurel Creek | city | Delaware | United States | 38.56 | -75.56 | 19 | |
| Laurel Mobile Home Park | city | Delaware | United States | 38.56 | -75.56 | 19 | |
| Lauren Farms | city | Delaware | United States | 39.60 | -75.68 | 49 | |
| Lawndale | city | Delaware | United States | 39.28 | -75.59 | 16 | |
| Layton Corners | city | Delaware | United States | 38.90 | -75.69 | 65 | |
| Lazy Lagoon Mobile Home Park | city | Delaware | United States | 38.50 | -75.23 | 39 | |
| Lazy Lake | city | Delaware | United States | 38.73 | -75.26 | 29 | |
| Lebanon | city | Delaware | United States | 39.11 | -75.50 | 3 | |
| Leedon Estates | city | Delaware | United States | 39.69 | -75.58 | 49 | |
| Leipsic | city | Delaware | United States | 39.24 | -75.52 | 3 | |
| Leisure Point Mobile Home Park | city | Delaware | United States | 38.63 | -75.16 | 6 | |
| Lewes | city | Delaware | United States | 38.77 | -75.14 | 9 | |
| Lewes Beach | city | Delaware | United States | 38.79 | -75.15 | 3 | |
| Lexington Mill | city | Delaware | United States | 39.04 | -75.51 | 3 | |
| Liberty | city | Delaware | United States | 39.73 | -75.62 | 88 | |
| Liftwood | city | Delaware | United States | 39.78 | -75.52 | 95 | |
| Lightfoots Furnace | city | Delaware | United States | 38.64 | -75.58 | 19 | |
| Limestone Acres | city | Delaware | United States | 39.73 | -75.67 | 88 | |
| Limestone Gap | city | Delaware | United States | 39.73 | -75.66 | 75 | |
| Limestone Gardene | city | Delaware | United States | 39.73 | -75.66 | 91 | |
| Limestone Hills | city | Delaware | United States | 39.75 | -75.68 | 200 | |
| Lincoln | city | Delaware | United States | 38.87 | -75.42 | 49 | |
| Lincoln Park | city | Delaware | United States | 39.16 | -75.54 | 26 | |
| Lincoln Village | city | Delaware | United States | 38.87 | -75.44 | 49 | |
| Lindamere | city | Delaware | United States | 39.76 | -75.49 | 0 | |
| Lindell Square | city | Delaware | United States | 39.73 | -75.67 | 98 | |
| Lindell Village | city | Delaware | United States | 39.72 | -75.67 | 88 | |
| Linden Green Apartment | city | Delaware | United States | 39.73 | -75.69 | 200 | |
| Linden Heath | city | Delaware | United States | 39.74 | -75.70 | 200 | |
| Linden Hill | city | Delaware | United States | 39.73 | -75.69 | 200 | |
| Linden Square | city | Delaware | United States | 39.73 | -75.70 | 137 | |
| Lingo Estate Mobile Home Park | city | Delaware | United States | 38.63 | -75.17 | 9 | |
| Lingo Landing | city | Delaware | United States | 38.63 | -75.12 | 3 | |
| Little Acres | city | Delaware | United States | 38.50 | -75.56 | 42 | |
| Little Baltimore | city | Delaware | United States | 39.77 | -75.74 | 360 | |
| Little Creek | city | Delaware | United States | 39.17 | -75.45 | 3 | |
| Little Creek Landing | city | Delaware | United States | 39.16 | -75.44 | 3 | |
| Little Heaven | city | Delaware | United States | 39.04 | -75.46 | 3 | |
| Little Jersey | city | Delaware | United States | 39.56 | -75.71 | 49 | |
| Llangollen Estates | city | Delaware | United States | 39.65 | -75.62 | 49 | |
| Lochwood | city | Delaware | United States | 38.68 | -75.20 | 6 | |
| Locustville | city | Delaware | United States | 39.07 | -75.49 | 3 | |
| Log Cabin Mobile Home Park | city | Delaware | United States | 38.74 | -75.24 | 19 | |
| Log Run | city | Delaware | United States | 39.81 | -75.49 | 209 | |
| London Village | city | Delaware | United States | 39.07 | -75.53 | 42 | |
| Lone Star Mobile Home Park | city | Delaware | United States | 39.11 | -75.54 | 19 | |
| Long Acres | city | Delaware | United States | 38.72 | -75.19 | 16 | |
| Long Neck | city | Delaware | United States | 38.62 | -75.15 | 3 | |
| Long Neck Village Mobile Home Park | city | Delaware | United States | 38.63 | -75.17 | 6 | |
| Long Point Landing | city | Delaware | United States | 39.31 | -75.62 | 19 | |
| Longview Farms | city | Delaware | United States | 39.82 | -75.47 | 147 | |
| Longwood | city | Delaware | United States | 39.81 | -75.54 | 308 | |
| Lords Corner | city | Delaware | United States | 39.01 | -75.72 | 85 | |
| Lorewood Grove | city | Delaware | United States | 39.54 | -75.69 | 49 | |
| Loveville | city | Delaware | United States | 39.77 | -75.66 | 298 | |
| Lowe | city | Delaware | United States | 38.52 | -75.51 | 29 | |
| Lower Moores Corner | city | Delaware | United States | 39.18 | -75.59 | 42 | |
| Lowes Crossroads | city | Delaware | United States | 38.52 | -75.41 | 49 | |
| Lucky Estates | city | Delaware | United States | 38.93 | -75.54 | 49 | |
| Lumbrook | city | Delaware | United States | 39.69 | -75.73 | 88 | |
| Lums Pond Estates II | city | Delaware | United States | 39.58 | -75.71 | 49 | |
| Lynch Heights | city | Delaware | United States | 38.95 | -75.43 | 19 | |
| Lyndalia | city | Delaware | United States | 39.72 | -75.60 | 52 | |
| Lynford | city | Delaware | United States | 39.73 | -75.61 | 88 | |
| Lynn Lee Village Mobile Home Park | city | Delaware | United States | 38.56 | -75.09 | 6 | |
| Lynnfield | city | Delaware | United States | 39.79 | -75.51 | 213 |