| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Calhoun Corners | city | Connecticut | United States | 41.80 | -73.38 | 898 | |
| Campville | city | Connecticut | United States | 41.74 | -73.11 | 830 | |
| Canaan | city | Connecticut | United States | 42.03 | -73.33 | 830 | |
| Canaan Valley | city | Connecticut | United States | 42.04 | -73.26 | 830 | |
| Candlewood Knolls | city | Connecticut | United States | 41.48 | -73.46 | 830 | |
| Candlewood Lake Club | city | Connecticut | United States | 41.49 | -73.44 | 830 | |
| Candlewood Orchards | city | Connecticut | United States | 41.47 | -73.44 | 830 | |
| Candlewood Pines | city | Connecticut | United States | 41.46 | -73.45 | 830 | |
| Candlewood Point | city | Connecticut | United States | 41.54 | -73.44 | 830 | |
| Candlewood Shores | city | Connecticut | United States | 41.48 | -73.44 | 830 | |
| Candlewood Springs | city | Connecticut | United States | 41.56 | -73.44 | 830 | |
| Cannondale | city | Connecticut | United States | 41.22 | -73.43 | 305 | |
| Canterbury | city | Connecticut | United States | 41.70 | -71.97 | 200 | |
| Canton | city | Connecticut | United States | 41.82 | -72.89 | 324 | |
| Canton Center | city | Connecticut | United States | 41.86 | -72.92 | 830 | |
| Canton Valley | city | Connecticut | United States | 41.83 | -72.89 | 830 | |
| Carroll Corners | city | Connecticut | United States | 41.93 | -72.77 | 200 | |
| Casagmo | city | Connecticut | United States | 41.29 | -73.50 | 830 | |
| Case Corner | city | Connecticut | United States | 41.84 | -72.77 | 200 | |
| Cedar Beach | city | Connecticut | United States | 41.18 | -73.10 | 0 | |
| Cedar Heights | city | Connecticut | United States | 41.45 | -73.44 | 830 | |
| Cedar Lake | city | Connecticut | United States | 41.40 | -72.50 | 295 | |
| Cedar Land | city | Connecticut | United States | 41.47 | -73.23 | 196 | |
| Cedarhurst | city | Connecticut | United States | 41.43 | -73.22 | 396 | |
| Center Groton | city | Connecticut | United States | 41.38 | -72.03 | 164 | |
| Centerbrook | city | Connecticut | United States | 41.35 | -72.42 | 68 | |
| Centerville | city | Connecticut | United States | 41.38 | -72.91 | 75 | |
| Central Manchester | city | Connecticut | United States | 41.78 | -72.52 | 226 | |
| Central Somers | city | Connecticut | United States | 41.99 | -72.45 | 269 | |
| Central Village | city | Connecticut | United States | 41.72 | -71.91 | 219 | |
| Central Waterford | city | Connecticut | United States | 41.34 | -72.14 | 78 | |
| Chaffeeville | city | Connecticut | United States | 41.79 | -72.21 | 291 | |
| Chaplin | city | Connecticut | United States | 41.79 | -72.13 | 396 | |
| Chapman (historical) | city | Connecticut | United States | 41.27 | -72.43 | 0 | |
| Chatsworth Village | city | Connecticut | United States | 41.94 | -72.79 | 196 | |
| Cherry Park | city | Connecticut | United States | 41.81 | -72.89 | 298 | |
| Cheshire | city | Connecticut | United States | 41.50 | -72.90 | 200 | |
| Cheshire Street (historical) | city | Connecticut | United States | 41.54 | -72.87 | 187 | |
| Cheshire Village | city | Connecticut | United States | 41.50 | -72.90 | 200 | |
| Chester | city | Connecticut | United States | 41.40 | -72.45 | 98 | |
| Chesterfield | city | Connecticut | United States | 41.43 | -72.21 | 196 | |
| Childrens Village of the Hartford Orphan Asylum | city | Connecticut | United States | 41.79 | -72.71 | 68 | |
| Chimney Point | city | Connecticut | United States | 41.50 | -73.44 | 830 | |
| City Point | city | Connecticut | United States | 41.28 | -72.93 | 0 | |
| City of Hartford | city | Connecticut | United States | 41.76 | -72.69 | 45 | |
| City of Milford (balance) | city | Connecticut | United States | 41.22 | -73.06 | 9 | |
| Clarks Corner | city | Connecticut | United States | 41.77 | -72.09 | 830 | |
| Clarks Falls | city | Connecticut | United States | 41.46 | -71.81 | 95 | |
| Clarks Village | city | Connecticut | United States | 41.36 | -71.84 | 3 | |
| Clayville | city | Connecticut | United States | 41.62 | -71.98 | 134 | |
| Clinton | city | Connecticut | United States | 41.28 | -72.53 | 16 | |
| Clinton Beach | city | Connecticut | United States | 41.27 | -72.50 | 0 | |
| Clintonville | city | Connecticut | United States | 41.39 | -72.82 | 98 | |
| Coachlight Village | city | Connecticut | United States | 41.78 | -72.61 | 55 | |
| Cobalt | city | Connecticut | United States | 41.56 | -72.56 | 121 | |
| Cobalt Landing | city | Connecticut | United States | 41.56 | -72.56 | 121 | |
| Colchester | city | Connecticut | United States | 41.58 | -72.33 | 830 | |
| Colebrook | city | Connecticut | United States | 41.99 | -73.10 | 1249 | |
| Coley Town | city | Connecticut | United States | 41.19 | -73.34 | 196 | |
| Collinsville | city | Connecticut | United States | 41.81 | -72.92 | 830 | |
| Colonial Mobile Home Park | city | Connecticut | United States | 41.74 | -72.64 | 42 | |
| Columbia | city | Connecticut | United States | 41.70 | -72.30 | 406 | |
| Compo | city | Connecticut | United States | 41.11 | -73.36 | 0 | |
| Conantville | city | Connecticut | United States | 41.74 | -72.20 | 206 | |
| Corbin Heights Housing | city | Connecticut | United States | 41.69 | -72.80 | 354 | |
| Corner of the Pines | city | Connecticut | United States | 41.84 | -73.33 | 1000 | |
| Cornfield Park | city | Connecticut | United States | 41.26 | -72.39 | 0 | |
| Cornwall | city | Connecticut | United States | 41.84 | -73.33 | 830 | |
| Cornwall (Connecticut) | city | Connecticut | United States | 41.84 | -73.33 | 830 | |
| Cornwall Bridge | city | Connecticut | United States | 41.82 | -73.37 | 830 | |
| Cornwall, Connecticut | city | Connecticut | United States | 41.84 | -73.33 | 830 | |
| Cos Cob | city | Connecticut | United States | 41.03 | -73.60 | 13 | |
| Cottage Grove | city | Connecticut | United States | 41.82 | -72.70 | 98 | |
| Cotton Hollow | city | Connecticut | United States | 41.66 | -72.60 | 98 | |
| Coventry | city | Connecticut | United States | 41.77 | -72.31 | 830 | |
| Coventry Lake | city | Connecticut | United States | 41.77 | -72.33 | 830 | |
| Cranbury | city | Connecticut | United States | 41.15 | -73.40 | 98 | |
| Crescent Beach | city | Connecticut | United States | 41.32 | -72.20 | 0 | |
| Crescent Grove (historical) | city | Connecticut | United States | 42.02 | -72.52 | 187 | |
| Crescent Park | city | Connecticut | United States | 41.31 | -72.20 | 0 | |
| Cromwell | city | Connecticut | United States | 41.60 | -72.65 | 13 | |
| Cromwell Hills | city | Connecticut | United States | 41.61 | -72.68 | 98 | |
| Crowley Corner | city | Connecticut | United States | 41.48 | -72.31 | 396 | |
| Crowleys Corner | city | Connecticut | United States | 41.82 | -72.87 | 278 | |
| Crystal Lake | city | Connecticut | United States | 41.93 | -72.38 | 830 | |
| Cupheag (historical) | city | Connecticut | United States | 41.18 | -73.13 | 26 |