| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Lagoon Heights | city | Massachusetts | United States | 41.45 | -70.57972 | 39 | 5996 |
| Lake Forest Park | city | Massachusetts | United States | 42.30833 | -71.35417 | 196 | 71997 |
| Lake Pleasant | city | Massachusetts | United States | 42.55639 | -72.51861 | 298 | 9149 |
| Lakeside | city | Massachusetts | United States | 41.66667 | -71.10833 | 131 | 66829 |
| Lakeside | city | Massachusetts | United States | 41.85139 | -70.90972 | 55 | 12094 |
| Lakeside Shore | city | Massachusetts | United States | 41.795 | -70.93194 | 78 | 9669 |
| Lakeview | city | Massachusetts | United States | 42.26667 | -71.75972 | 393 | 146453 |
| Lakeview | city | Massachusetts | United States | 42.40278 | -71.24167 | 167 | 162698 |
| Lakeview Heights | city | Massachusetts | United States | 42.04333 | -71.825 | 544 | 15940 |
| Lakeview Heights | city | Massachusetts | United States | 41.80139 | -70.95694 | 55 | 9669 |
| Lakeview Terrace | city | Massachusetts | United States | 42.49167 | -73.24056 | 1197 | 37568 |
| Lakeville | city | Massachusetts | United States | 41.84583 | -70.95 | 75 | 16014 |
| Lakewood | city | Massachusetts | United States | 42.44944 | -73.22639 | 997 | 41904 |
| Lakewood Park | city | Massachusetts | United States | 42.52917 | -71.87917 | 898 | 7543 |
| Lamberts Cove | city | Massachusetts | United States | 41.43806 | -70.66778 | 65 | 2001 |
| Lambs Grove | city | Massachusetts | United States | 42.275 | -71.96833 | 889 | 15291 |
| Lancaster | city | Massachusetts | United States | 42.45556 | -71.67361 | 249 | 21745 |
| Lands End | city | Massachusetts | United States | 42.64028 | -70.6 | 22 | 15224 |
| Lane Village | city | Massachusetts | United States | 42.66028 | -71.93722 | 1151 | 7861 |
| Lanesborough | city | Massachusetts | United States | 42.51722 | -73.22861 | 1217 | 16384 |
| Lanesville | city | Massachusetts | United States | 42.67778 | -70.65972 | 95 | 12220 |
| Larchwood subdivision | city | Massachusetts | United States | 42.37806 | -71.145 | 13 | 422973 |
| Larrywaug | city | Massachusetts | United States | 42.3 | -73.33472 | 872 | 3520 |
| Laurel Park | city | Massachusetts | United States | 42.35833 | -72.64167 | 180 | 28279 |
| Lawrence | city | Massachusetts | United States | 42.70694 | -71.16361 | 39 | 123042 |
| Le Count Hollow historical | city | Massachusetts | United States | 41.92361 | -69.97778 | 0 | 1799 |
| Lee | city | Massachusetts | United States | 42.30417 | -73.24861 | 898 | 6806 |
| Leeds | city | Massachusetts | United States | 42.35139 | -72.7 | 298 | 20918 |
| Leicester | city | Massachusetts | United States | 42.24583 | -71.90917 | 889 | 34249 |
| Leightons Corner | city | Massachusetts | United States | 42.72361 | -70.93611 | 49 | 13497 |
| Leino Park | city | Massachusetts | United States | 42.525 | -71.87778 | 997 | 7543 |
| Leisure Lee | city | Massachusetts | United States | 42.29389 | -73.20056 | 1515 | 4180 |
| Lenox | city | Massachusetts | United States | 42.35639 | -73.28528 | 1197 | 8750 |
| Lenox Dale | city | Massachusetts | United States | 42.33611 | -73.24583 | 967 | 7861 |
| Lenox Station | city | Massachusetts | United States | 42.35 | -73.245 | 997 | 7861 |
| Leominster | city | Massachusetts | United States | 42.525 | -71.76028 | 380 | 52888 |
| Leverett | city | Massachusetts | United States | 42.45194 | -72.50194 | 423 | 24240 |
| Leverett Station | city | Massachusetts | United States | 42.45056 | -72.52306 | 387 | 24240 |
| Lexington | city | Massachusetts | United States | 42.44722 | -71.225 | 206 | 107185 |
| Leyden | city | Massachusetts | United States | 42.7 | -72.63056 | 898 | 3128 |
| Liberty Heights | city | Massachusetts | United States | 42.12278 | -72.59583 | 180 | 152991 |
| Liberty Plain | city | Massachusetts | United States | 42.18889 | -70.88333 | 121 | 61296 |
| Lincoln | city | Massachusetts | United States | 42.42583 | -71.30444 | 216 | 33778 |
| Lincoln Heights | city | Massachusetts | United States | 42.22361 | -70.91944 | 45 | 99807 |
| Linden | city | Massachusetts | United States | 42.43333 | -71.03194 | 19 | 245176 |
| Lindenwood | city | Massachusetts | United States | 42.48333 | -71.10833 | 144 | 174946 |
| Linebrook | city | Massachusetts | United States | 42.68 | -70.92917 | 98 | 15032 |
| Linwood | city | Massachusetts | United States | 42.09722 | -71.64528 | 288 | 22812 |
| Lithia | city | Massachusetts | United States | 42.45611 | -72.83556 | 1197 | 2252 |
| Little Bridge | city | Massachusetts | United States | 42.16 | -70.74361 | 98 | 22850 |
| Little Egypt | city | Massachusetts | United States | 42.60556 | -73.08139 | 1633 | 6802 |
| Little Nahant | city | Massachusetts | United States | 42.43611 | -70.93333 | 3 | 112974 |
| Little Neck | city | Massachusetts | United States | 42.69583 | -70.79306 | 6 | 12407 |
| Little Rest | city | Massachusetts | United States | 42.14056 | -72.1875 | 774 | 5620 |
| Little River | city | Massachusetts | United States | 42.1 | -72.72 | 196 | 34877 |
| Littleton | city | Massachusetts | United States | 42.5375 | -71.5125 | 242 | 17805 |
| Littleton Common | city | Massachusetts | United States | 42.54583 | -71.475 | 301 | 19315 |
| Littleville | city | Massachusetts | United States | 42.2875 | -72.89167 | 498 | 1864 |
| Lobsterville | city | Massachusetts | United States | 41.35 | -70.79806 | 59 | 455 |
| Locks Village | city | Massachusetts | United States | 42.5 | -72.43472 | 889 | 2461 |
| Lokerville | city | Massachusetts | United States | 42.28889 | -71.39722 | 157 | 78023 |
| Long Josephs Point | city | Massachusetts | United States | 41.24583 | -70.1 | 0 | 3463 |
| Long Plain | city | Massachusetts | United States | 41.7375 | -70.89583 | 88 | 26395 |
| Long Pond Park | city | Massachusetts | United States | 42.69583 | -71.36389 | 203 | 84047 |
| Longmeadow | city | Massachusetts | United States | 42.05 | -72.58333 | 104 | 131526 |
| Longview | city | Massachusetts | United States | 41.44028 | -70.65833 | 183 | 5625 |
| Longwood Station | city | Massachusetts | United States | 42.34194 | -71.11111 | 36 | 588198 |
| Loudville | city | Massachusetts | United States | 42.2875 | -72.73806 | 403 | 14932 |
| Loveland | city | Massachusetts | United States | 42.0325 | -71.84 | 469 | 21098 |
| Lovell Corners | city | Massachusetts | United States | 42.19667 | -70.92694 | 98 | 94801 |
| Lovellville | city | Massachusetts | United States | 42.37083 | -71.85111 | 649 | 26262 |
| Lowell | city | Massachusetts | United States | 42.63333 | -71.31667 | 98 | 136327 |
| Lowell Junction | city | Massachusetts | United States | 42.61389 | -71.1625 | 154 | 46714 |
| Lower Mills | city | Massachusetts | United States | 42.275 | -71.07083 | 3 | 296929 |
| Lower Village | city | Massachusetts | United States | 42.43333 | -71.485 | 203 | 32667 |
| Lower Wire Village | city | Massachusetts | United States | 42.26389 | -71.99389 | 869 | 15291 |
| Ludlow | city | Massachusetts | United States | 42.16 | -72.47639 | 262 | 62924 |
| Ludlow | city | Massachusetts | United States | 42.23972 | -71.84861 | 534 | 93918 |
| Ludlow Center | city | Massachusetts | United States | 42.19167 | -72.45972 | 291 | 35501 |
| Ludlow City | city | Massachusetts | United States | 42.22028 | -72.49944 | 285 | 13985 |
| Lunenburg | city | Massachusetts | United States | 42.59444 | -71.725 | 472 | 25694 |
| Lunenburg Station | city | Massachusetts | United States | 42.53611 | -71.70417 | 396 | 26242 |
| Luther Corner | city | Massachusetts | United States | 41.74472 | -71.22361 | 29 | 48839 |
| Luthers Corners | city | Massachusetts | United States | 41.80917 | -71.3375 | 49 | 137768 |
| Lynn | city | Massachusetts | United States | 42.46667 | -70.95 | 29 | 166552 |
| Lynnfield | city | Massachusetts | United States | 42.53889 | -71.04861 | 98 | 97186 |
| Lynnhurst | city | Massachusetts | United States | 42.47083 | -71.00417 | 19 | 157918 |
| Lyonsville | city | Massachusetts | United States | 42.67222 | -72.71583 | 679 | 1311 |
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