| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Sachem Head | city | Connecticut | United States | 41.24583 | -72.70417 | 0 | 6053 |
| Salem | city | Connecticut | United States | 41.49028 | -72.27583 | 347 | 6259 |
| Salisbury | city | Connecticut | United States | 41.98333 | -73.42167 | 685 | 2921 |
| Salmon Brook | city | Connecticut | United States | 41.95639 | -72.79583 | 200 | 16428 |
| Sandy Beach | city | Connecticut | United States | 41.69444 | -73.22 | 1000 | 5754 |
| Sandy Hook | city | Connecticut | United States | 41.42 | -73.2825 | 272 | 15644 |
| Sandy Point | city | Connecticut | United States | 41.34833 | -72.18444 | 19 | 20488 |
| Sanfordtown | city | Connecticut | United States | 41.29472 | -73.36278 | 498 | 13234 |
| Saugatuck | city | Connecticut | United States | 41.1225 | -73.37056 | 29 | 41019 |
| Saugatuck Shores | city | Connecticut | United States | 41.09722 | -73.37111 | 0 | 41019 |
| Saunders Point | city | Connecticut | United States | 41.34083 | -72.18611 | 19 | 20488 |
| Savin Rock | city | Connecticut | United States | 41.25972 | -72.94583 | 0 | 152483 |
| Saybrook Manor | city | Connecticut | United States | 41.28528 | -72.39944 | 6 | 10611 |
| Saybrook Point | city | Connecticut | United States | 41.28389 | -72.35444 | 0 | 9864 |
| Saybrooke Village subdivision | city | Connecticut | United States | 41.74639 | -72.69889 | 88 | 190409 |
| Scantic | city | Connecticut | United States | 41.89611 | -72.55306 | 167 | 23822 |
| Schoonhoven Park | city | Connecticut | United States | 41.14417 | -73.22833 | 0 | 110738 |
| Scitico | city | Connecticut | United States | 41.98472 | -72.51611 | 173 | 33306 |
| Scotland | city | Connecticut | United States | 41.69833 | -72.08194 | 288 | 5061 |
| Scovill Landing | city | Connecticut | United States | 41.48917 | -72.46556 | 137 | 6791 |
| Sea Bluff | city | Connecticut | United States | 41.25389 | -72.96528 | 0 | 114600 |
| Seaside | city | Connecticut | United States | 41.30389 | -72.13306 | 0 | 30437 |
| Seaside | city | Connecticut | United States | 41.30389 | -72.12944 | 0 | 30437 |
| Seaview Beach | city | Connecticut | United States | 41.27306 | -72.58444 | 0 | 12907 |
| Selleck Four Corners historical | city | Connecticut | United States | 41.29528 | -73.39583 | 288 | 16911 |
| Sellecks Corners | city | Connecticut | United States | 41.18528 | -73.53444 | 396 | 25117 |
| Seymour | city | Connecticut | United States | 41.39667 | -73.07639 | 95 | 35648 |
| Shady Rest | city | Connecticut | United States | 41.44972 | -73.27667 | 200 | 15644 |
| Shailerville | city | Connecticut | United States | 41.47083 | -72.49583 | 200 | 6791 |
| Shaker Pines | city | Connecticut | United States | 42.02861 | -72.53778 | 187 | 49641 |
| Sharon | city | Connecticut | United States | 41.87917 | -73.47722 | 721 | 2661 |
| Sharon Valley | city | Connecticut | United States | 41.88389 | -73.49278 | 547 | 2661 |
| Shelton | city | Connecticut | United States | 41.31639 | -73.09361 | 42 | 62100 |
| Sherman | city | Connecticut | United States | 41.57917 | -73.49611 | 498 | 11575 |
| Sherman Corner | city | Connecticut | United States | 41.77 | -72.13667 | 403 | 9004 |
| Sherwood Manor | city | Connecticut | United States | 42.01333 | -72.56472 | 167 | 66700 |
| Shewville | city | Connecticut | United States | 41.48833 | -71.995 | 154 | 8102 |
| Shippan Point | city | Connecticut | United States | 41.02778 | -73.52417 | 0 | 80063 |
| Shorehaven | city | Connecticut | United States | 41.09167 | -73.38889 | 0 | 81510 |
| Short Beach | city | Connecticut | United States | 41.26139 | -72.84083 | 13 | 70242 |
| Showtucket historical | city | Connecticut | United States | 41.55694 | -72.04556 | 36 | 34528 |
| Silver Beach | city | Connecticut | United States | 41.20167 | -73.06472 | 0 | 43203 |
| Silver Falls | city | Connecticut | United States | 41.4125 | -72.22056 | 291 | 13161 |
| Silvermine | city | Connecticut | United States | 41.15139 | -73.44556 | 160 | 85403 |
| Silvermine Acres | city | Connecticut | United States | 41.83139 | -72.90917 | 396 | 25058 |
| Simsbury | city | Connecticut | United States | 41.87583 | -72.80167 | 187 | 21675 |
| Skinnerville | city | Connecticut | United States | 41.55639 | -72.50917 | 396 | 11353 |
| Slineyville historical | city | Connecticut | United States | 41.30361 | -72.91667 | 0 | 189744 |
| Smith Corner | city | Connecticut | United States | 41.59139 | -72.12944 | 200 | 6935 |
| Smith Tower Housing subdivision | city | Connecticut | United States | 41.75944 | -72.67083 | 45 | 205196 |
| Snug Harbor | city | Connecticut | United States | 41.44278 | -73.45139 | 564 | 63267 |
| Sodom | city | Connecticut | United States | 42.03583 | -73.29806 | 800 | 4254 |
| Somers | city | Connecticut | United States | 41.98528 | -72.44667 | 269 | 11772 |
| Somersville | city | Connecticut | United States | 41.98278 | -72.48833 | 160 | 19751 |
| Sound View | city | Connecticut | United States | 41.28889 | -72.28806 | 42 | 5389 |
| South Britain | city | Connecticut | United States | 41.47083 | -73.25194 | 200 | 13272 |
| South Canaan | city | Connecticut | United States | 41.96167 | -73.33389 | 685 | 2957 |
| South Chaplin | city | Connecticut | United States | 41.77667 | -72.13167 | 344 | 9004 |
| South Coventry | city | Connecticut | United States | 41.77 | -72.30556 | 554 | 14826 |
| South Ellsworth | city | Connecticut | United States | 41.81889 | -73.42972 | 1217 | 2257 |
| South End | city | Connecticut | United States | 41.03972 | -73.5375 | 16 | 80063 |
| South End | city | Connecticut | United States | 41.24389 | -72.89444 | 0 | 31561 |
| South Farms | city | Connecticut | United States | 41.55417 | -72.64333 | 9 | 45466 |
| South Glastonbury | city | Connecticut | United States | 41.66694 | -72.59722 | 98 | 46277 |
| South Kent | city | Connecticut | United States | 41.67944 | -73.47111 | 380 | 4974 |
| South Killingly | city | Connecticut | United States | 41.79111 | -71.83361 | 613 | 13914 |
| South Lyme | city | Connecticut | United States | 41.30528 | -72.25889 | 68 | 10803 |
| South Meriden | city | Connecticut | United States | 41.51611 | -72.83417 | 104 | 65247 |
| South Norfolk | city | Connecticut | United States | 41.92306 | -73.20778 | 1131 | 2952 |
| South Norwalk | city | Connecticut | United States | 41.09361 | -73.41917 | 16 | 90923 |
| South Wethersfield | city | Connecticut | United States | 41.69028 | -72.65611 | 59 | 75728 |
| South Willington | city | Connecticut | United States | 41.85528 | -72.30194 | 482 | 13936 |
| South Wilton | city | Connecticut | United States | 41.16806 | -73.41667 | 200 | 41466 |
| South Windham | city | Connecticut | United States | 41.67944 | -72.17083 | 200 | 19819 |
| South Windsor | city | Connecticut | United States | 41.82361 | -72.62167 | 59 | 57885 |
| South Windsor | city | Connecticut | United States | 41.84889 | -72.57222 | 91 | 30614 |
| South Woodstock | city | Connecticut | United States | 41.93889 | -71.96 | 347 | 6191 |
| Southbury | city | Connecticut | United States | 41.48139 | -73.21361 | 229 | 16174 |
| Southford | city | Connecticut | United States | 41.46444 | -73.16222 | 498 | 15799 |
| Southington | city | Connecticut | United States | 41.59639 | -72.87806 | 196 | 49210 |
| Southport | city | Connecticut | United States | 41.13639 | -73.28389 | 3 | 68177 |
| Southwood Acres | city | Connecticut | United States | 41.9625 | -72.57194 | 134 | 47761 |
| Southwood Acres | city | Connecticut | United States | 41.97028 | -72.56722 | 98 | 47761 |
| Spoonville | city | Connecticut | United States | 41.89611 | -72.745 | 108 | 19292 |
| Spoonville historical | city | Connecticut | United States | 41.89694 | -72.74944 | 98 | 19292 |
| Spring Glen | city | Connecticut | United States | 41.36333 | -72.90917 | 98 | 130675 |
| Spring Hill | city | Connecticut | United States | 41.78694 | -72.22444 | 515 | 28410 |
| Spring Village | city | Connecticut | United States | 41.91944 | -72.61694 | 68 | 36261 |
| Springdale | city | Connecticut | United States | 41.08778 | -73.52472 | 104 | 105415 |
| Spruce Corner historical | city | Connecticut | United States | 41.33139 | -72.5875 | 124 | 15647 |
| Stafford | city | Connecticut | United States | 41.98472 | -72.28944 | 600 | 8200 |
| Stafford Springs | city | Connecticut | United States | 41.95417 | -72.30278 | 541 | 11566 |
| Staffordville | city | Connecticut | United States | 41.99389 | -72.25917 | 797 | 8200 |
| Stamford | city | Connecticut | United States | 41.05333 | -73.53917 | 22 | 115552 |
| Stanwich | city | Connecticut | United States | 41.11944 | -73.61972 | 393 | 46722 |
| Stepney | city | Connecticut | United States | 41.30389 | -73.25472 | 400 | 23363 |
| Sterling | city | Connecticut | United States | 41.7075 | -71.82917 | 308 | 5378 |
| Sterling City | city | Connecticut | United States | 41.38361 | -72.33972 | 68 | 5597 |
| Stetson Corner | city | Connecticut | United States | 41.78611 | -72.00806 | 498 | 5333 |
| Stevenson | city | Connecticut | United States | 41.38306 | -73.185 | 190 | 17171 |
| Stillmans Corner | city | Connecticut | United States | 41.5625 | -72.86472 | 236 | 57041 |
| Stonington | city | Connecticut | United States | 41.33583 | -71.90639 | 0 | 14528 |
| Stony Creek | city | Connecticut | United States | 41.26444 | -72.74667 | 9 | 17363 |
| Storrs | city | Connecticut | United States | 41.80833 | -72.25 | 597 | 18650 |
| Stowe Village Housing Project | city | Connecticut | United States | 41.79361 | -72.67083 | 55 | 144452 |
| Straitsville | city | Connecticut | United States | 41.46972 | -73.03361 | 291 | 52904 |
| Stratfield | city | Connecticut | United States | 41.20667 | -73.23639 | 180 | 170436 |
| Stratford | city | Connecticut | United States | 41.18444 | -73.13361 | 26 | 151754 |
| Strathmore Woods | city | Connecticut | United States | 41.48583 | -72.89444 | 298 | 40374 |
| Suffield | city | Connecticut | United States | 41.98167 | -72.65111 | 131 | 31401 |
| Suffield Depot | city | Connecticut | United States | 41.98111 | -72.65028 | 131 | 31401 |
| Sunnyside | city | Connecticut | United States | 41.29722 | -73.07306 | 98 | 57411 |
| Sunnyside Trailer Park | city | Connecticut | United States | 41.29306 | -73.07 | 196 | 57411 |
| Sunnyside historical | city | Connecticut | United States | 41.51694 | -72.06667 | 298 | 38771 |
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