| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Lagoon Heights | city | Massachusetts | United States | 41.45 | -70.58 | 39 | |
| Lake Forest Park | city | Massachusetts | United States | 42.31 | -71.35 | 164 | |
| Lake Pleasant | city | Massachusetts | United States | 42.56 | -72.52 | 298 | |
| Lakeside | city | Massachusetts | United States | 41.67 | -71.11 | 131 | |
| Lakeside | city | Massachusetts | United States | 41.85 | -70.91 | 55 | |
| Lakeside Shore | city | Massachusetts | United States | 41.80 | -70.93 | 78 | |
| Lakeview | city | Massachusetts | United States | 42.27 | -71.76 | 393 | |
| Lakeview | city | Massachusetts | United States | 42.40 | -71.24 | 167 | |
| Lakeview Heights | city | Massachusetts | United States | 41.80 | -70.96 | 55 | |
| Lakeview Heights | city | Massachusetts | United States | 42.04 | -71.82 | 830 | |
| Lakeview Terrace | city | Massachusetts | United States | 42.49 | -73.24 | 1197 | |
| Lakeville | city | Massachusetts | United States | 41.85 | -70.95 | 55 | |
| Lakewood | city | Massachusetts | United States | 42.45 | -73.23 | 997 | |
| Lakewood Park | city | Massachusetts | United States | 42.53 | -71.88 | 935 | |
| Lamberts Cove | city | Massachusetts | United States | 41.44 | -70.67 | 65 | |
| Lambs Grove | city | Massachusetts | United States | 42.28 | -71.97 | 889 | |
| Lancaster | city | Massachusetts | United States | 42.46 | -71.67 | 249 | |
| Lands End | city | Massachusetts | United States | 42.64 | -70.60 | 22 | |
| Lane Village | city | Massachusetts | United States | 42.66 | -71.94 | 1151 | |
| Lanesborough | city | Massachusetts | United States | 42.52 | -73.23 | 1217 | |
| Lanesville | city | Massachusetts | United States | 42.68 | -70.66 | 95 | |
| Larchwood | city | Massachusetts | United States | 42.38 | -71.14 | 13 | |
| Larrywaug | city | Massachusetts | United States | 42.30 | -73.33 | 872 | |
| Laurel Park | city | Massachusetts | United States | 42.36 | -72.64 | 180 | |
| Lawrence | city | Massachusetts | United States | 42.71 | -71.16 | 39 | |
| Le Count Hollow (historical) | city | Massachusetts | United States | 41.92 | -69.98 | 0 | |
| Lee | city | Massachusetts | United States | 42.30 | -73.25 | 898 | |
| Leeds | city | Massachusetts | United States | 42.35 | -72.70 | 298 | |
| Leicester | city | Massachusetts | United States | 42.25 | -71.91 | 958 | |
| Leightons Corner | city | Massachusetts | United States | 42.72 | -70.94 | 49 | |
| Leino Park | city | Massachusetts | United States | 42.53 | -71.88 | 997 | |
| Leisure Lee | city | Massachusetts | United States | 42.29 | -73.20 | 1669 | |
| Lenox | city | Massachusetts | United States | 42.36 | -73.28 | 1197 | |
| Lenox Dale | city | Massachusetts | United States | 42.34 | -73.25 | 967 | |
| Lenox Station | city | Massachusetts | United States | 42.35 | -73.24 | 997 | |
| Leominster | city | Massachusetts | United States | 42.53 | -71.76 | 380 | |
| Leverett | city | Massachusetts | United States | 42.45 | -72.50 | 830 | |
| Leverett Station | city | Massachusetts | United States | 42.45 | -72.52 | 387 | |
| Lexington | city | Massachusetts | United States | 42.45 | -71.22 | 206 | |
| Lexingtonia | city | Massachusetts | United States | 42.45 | -71.22 | 206 | |
| Leyden | city | Massachusetts | United States | 42.70 | -72.63 | 898 | |
| Liberty Heights | city | Massachusetts | United States | 42.12 | -72.60 | 180 | |
| Liberty Plain | city | Massachusetts | United States | 42.19 | -70.88 | 121 | |
| Lincoln | city | Massachusetts | United States | 42.43 | -71.30 | 239 | |
| Lincoln Heights | city | Massachusetts | United States | 42.22 | -70.92 | 45 | |
| Linden | city | Massachusetts | United States | 42.43 | -71.03 | 19 | |
| Lindenwood | city | Massachusetts | United States | 42.48 | -71.11 | 144 | |
| Linebrook | city | Massachusetts | United States | 42.68 | -70.93 | 98 | |
| Linwood | city | Massachusetts | United States | 42.10 | -71.64 | 288 | |
| Lithia | city | Massachusetts | United States | 42.46 | -72.84 | 1197 | |
| Little Bridge | city | Massachusetts | United States | 42.16 | -70.74 | 98 | |
| Little Egypt | city | Massachusetts | United States | 42.61 | -73.08 | 1669 | |
| Little Nahant | city | Massachusetts | United States | 42.44 | -70.93 | 3 | |
| Little Neck | city | Massachusetts | United States | 42.70 | -70.79 | 3 | |
| Little Rest | city | Massachusetts | United States | 42.14 | -72.19 | 830 | |
| Little River | city | Massachusetts | United States | 42.10 | -72.72 | 196 | |
| Littleton | city | Massachusetts | United States | 42.54 | -71.51 | 229 | |
| Littleton Common | city | Massachusetts | United States | 42.55 | -71.47 | 298 | |
| Littleville | city | Massachusetts | United States | 42.29 | -72.89 | 830 | |
| Lobsterville | city | Massachusetts | United States | 41.35 | -70.80 | 59 | |
| Locks Village | city | Massachusetts | United States | 42.50 | -72.43 | 889 | |
| Locus Collium | city | Massachusetts | United States | 42.28 | -71.35 | 193 | |
| Lokerville | city | Massachusetts | United States | 42.29 | -71.40 | 157 | |
| Long Josephs Point | city | Massachusetts | United States | 41.25 | -70.10 | 13 | |
| Long Plain | city | Massachusetts | United States | 41.74 | -70.90 | 88 | |
| Long Pond Park | city | Massachusetts | United States | 42.70 | -71.36 | 216 | |
| Longmeadow | city | Massachusetts | United States | 42.05 | -72.58 | 104 | |
| Longview | city | Massachusetts | United States | 41.44 | -70.66 | 183 | |
| Longwood Station | city | Massachusetts | United States | 42.34 | -71.11 | 36 | |
| Loudville | city | Massachusetts | United States | 42.29 | -72.74 | 387 | |
| Loveland | city | Massachusetts | United States | 42.03 | -71.84 | 830 | |
| Lovell Corners | city | Massachusetts | United States | 42.20 | -70.93 | 98 | |
| Lovellville | city | Massachusetts | United States | 42.37 | -71.85 | 830 | |
| Lowell | city | Massachusetts | United States | 42.63 | -71.32 | 98 | |
| Lowell Junction | city | Massachusetts | United States | 42.61 | -71.16 | 154 | |
| Lower Green Village | city | Massachusetts | United States | 42.77 | -70.85 | 3 | |
| Lower Mills | city | Massachusetts | United States | 42.28 | -71.07 | 3 | |
| Lower Village | city | Massachusetts | United States | 42.43 | -71.48 | 203 | |
| Lower Wire Village | city | Massachusetts | United States | 42.26 | -71.99 | 869 | |
| Ludlow | city | Massachusetts | United States | 42.16 | -72.48 | 262 | |
| Ludlow | city | Massachusetts | United States | 42.24 | -71.85 | 830 | |
| Ludlow Center | city | Massachusetts | United States | 42.19 | -72.46 | 291 | |
| Ludlow City | city | Massachusetts | United States | 42.22 | -72.50 | 285 | |
| Lunenburg | city | Massachusetts | United States | 42.59 | -71.72 | 830 | |
| Lunenburg Station | city | Massachusetts | United States | 42.54 | -71.70 | 390 | |
| Luther Corner | city | Massachusetts | United States | 41.74 | -71.22 | 29 | |
| Luthers Corners | city | Massachusetts | United States | 41.81 | -71.34 | 49 | |
| Lynn | city | Massachusetts | United States | 42.47 | -70.95 | 29 | |
| Lynnfield | city | Massachusetts | United States | 42.54 | -71.05 | 98 | |
| Lynnhurst | city | Massachusetts | United States | 42.47 | -71.00 | 98 | |
| Lyonsville | city | Massachusetts | United States | 42.67 | -72.72 | 830 |