| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Cobbs Village | city | Massachusetts | United States | 41.70833 | -70.29167 | 9 | 26469 |
| Coburnville | city | Massachusetts | United States | 42.27278 | -71.43611 | 173 | 73854 |
| Cochesett | city | Massachusetts | United States | 42.01667 | -71.03889 | 82 | 60892 |
| Cochituate | city | Massachusetts | United States | 42.32083 | -71.36472 | 150 | 71997 |
| Codfish Park | city | Massachusetts | United States | 41.27972 | -69.9625 | 0 | 845 |
| Cohasset | city | Massachusetts | United States | 42.24167 | -70.80417 | 45 | 26250 |
| Cold Spring | city | Massachusetts | United States | 42.15417 | -73.075 | 1145 | 1267 |
| Cold Spring | city | Massachusetts | United States | 42.6625 | -72.51389 | 380 | 6172 |
| Cold Spring | city | Massachusetts | United States | 42.24667 | -72.35611 | 508 | 12240 |
| Coldbrook Springs | city | Massachusetts | United States | 42.39444 | -72.04722 | 790 | 4504 |
| Cole Corner | city | Massachusetts | United States | 42.22361 | -70.88611 | 49 | 57079 |
| Cole Mill | city | Massachusetts | United States | 41.92639 | -70.79917 | 95 | 12216 |
| College Hill | city | Massachusetts | United States | 42.23333 | -71.81111 | 649 | 135205 |
| Collins Corner | city | Massachusetts | United States | 41.71111 | -71.10694 | 131 | 59434 |
| Collinsville | city | Massachusetts | United States | 42.68333 | -71.35278 | 114 | 84047 |
| Colonial Acres | city | Massachusetts | United States | 41.64778 | -70.25611 | 6 | 27534 |
| Colonial Park | city | Massachusetts | United States | 42.02722 | -71.83194 | 498 | 11274 |
| Colrain | city | Massachusetts | United States | 42.67306 | -72.69722 | 672 | 1892 |
| Colton Hollow | city | Massachusetts | United States | 42.10972 | -72.35417 | 826 | 10399 |
| Coltsville | city | Massachusetts | United States | 42.4675 | -73.20417 | 997 | 25076 |
| Columbus Park | city | Massachusetts | United States | 42.25556 | -71.83472 | 498 | 112055 |
| Cominsville | city | Massachusetts | United States | 42.18694 | -71.89583 | 711 | 21600 |
| Community Park | city | Massachusetts | United States | 42.11528 | -71.90833 | 541 | 25314 |
| Concord | city | Massachusetts | United States | 42.46028 | -71.34944 | 147 | 24376 |
| Congamond | city | Massachusetts | United States | 42.01944 | -72.77 | 216 | 9923 |
| Conway | city | Massachusetts | United States | 42.50972 | -72.7 | 597 | 3502 |
| Cooks Brook Beach | city | Massachusetts | United States | 41.86444 | -70.00833 | 6 | 4338 |
| Cooks Corner | city | Massachusetts | United States | 42.27778 | -72.47083 | 295 | 10837 |
| Cooleyville | city | Massachusetts | United States | 42.46306 | -72.37306 | 728 | 1668 |
| Coolidge Corner | city | Massachusetts | United States | 42.34583 | -71.125 | 49 | 588198 |
| Coolidge Hill | city | Massachusetts | United States | 42.37361 | -71.13944 | 13 | 462684 |
| Copper Works | city | Massachusetts | United States | 41.94833 | -71.17917 | 85 | 21261 |
| Cordage | city | Massachusetts | United States | 41.97917 | -70.69167 | 6 | 25739 |
| Cordaville | city | Massachusetts | United States | 42.26889 | -71.52444 | 364 | 25383 |
| Coskata | city | Massachusetts | United States | 41.35417 | -70.02083 | 6 | 460 |
| Cottage Hill | city | Massachusetts | United States | 42.36806 | -70.96944 | 0 | 84387 |
| Cottage Park | city | Massachusetts | United States | 42.37083 | -70.9875 | 0 | 84387 |
| Cotuit | city | Massachusetts | United States | 41.61667 | -70.4375 | 3 | 10904 |
| Cotuit Highlands | city | Massachusetts | United States | 41.60833 | -70.4375 | 0 | 10904 |
| Country View Estates | city | Massachusetts | United States | 42.09583 | -71.4375 | 242 | 37157 |
| Countryside | city | Massachusetts | United States | 42.44194 | -71.19444 | 232 | 169011 |
| Court Park | city | Massachusetts | United States | 42.37278 | -70.99528 | 3 | 84387 |
| Coury Heights | city | Massachusetts | United States | 41.69583 | -70.925 | 26 | 93448 |
| Cow Yard | city | Massachusetts | United States | 41.53194 | -70.96667 | 0 | 6353 |
| Cowen Corner | city | Massachusetts | United States | 41.76889 | -70.84333 | 78 | 6505 |
| Cox Corner | city | Massachusetts | United States | 42.05889 | -70.69167 | 45 | 23589 |
| Coxs Corner | city | Massachusetts | United States | 42.08056 | -70.8875 | 95 | 39460 |
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