| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Sable | city | Colorado | United States | 39.76639 | -104.83056 | 5334 | 77334 |
| Sacramento | city | Colorado | United States | 39.22139 | -106.10694 | 11276 | 89 |
| Saguache | city | Colorado | United States | 38.0875 | -106.09444 | 7693 | 33 |
| Saint Ann Highlands | city | Colorado | United States | 39.98694 | -105.45556 | 7998 | 1820 |
| Saint Charles | city | Colorado | United States | 38.13889 | -104.62083 | 4993 | 1549 |
| Saint Elmo historical | city | Colorado | United States | 38.70472 | -106.3475 | 9954 | 281 |
| Saint Marys | city | Colorado | United States | 39.81667 | -105.64694 | 10098 | 852 |
| Saint Petersburg | city | Colorado | United States | 40.55556 | -102.81667 | 4199 | 98 |
| Saint Thomas historical | city | Colorado | United States | 37.13444 | -104.55694 | 6410 | 1738 |
| Saint Vrains | city | Colorado | United States | 40.03694 | -104.95417 | 5141 | 4239 |
| Saints John | city | Colorado | United States | 39.57167 | -105.88111 | 11053 | 2329 |
| Salida | city | Colorado | United States | 38.53472 | -105.99833 | 7020 | 5437 |
| Salina | city | Colorado | United States | 40.05056 | -105.37194 | 6784 | 4393 |
| Salt Creek | city | Colorado | United States | 38.24167 | -104.575 | 4750 | 35757 |
| Sample | city | Colorado | United States | 38.47222 | -105.355 | 5797 | 937 |
| San Acacio | city | Colorado | United States | 37.21389 | -105.56389 | 7709 | 140 |
| San Antonio | city | Colorado | United States | 37.02083 | -106.0275 | 7998 | 351 |
| San Isabel | city | Colorado | United States | 37.9875 | -105.05389 | 8602 | 230 |
| San Luis | city | Colorado | United States | 37.20083 | -105.42333 | 7995 | 140 |
| San Miguel | city | Colorado | United States | 37.94694 | -107.83528 | 8956 | 416 |
| San Miguel | city | Colorado | United States | 37.09944 | -104.395 | 6765 | 621 |
| San Pablo | city | Colorado | United States | 37.14917 | -105.39639 | 8169 | 140 |
| San Pedro | city | Colorado | United States | 37.15972 | -105.40194 | 8143 | 140 |
| Sandown | city | Colorado | United States | 39.7725 | -104.90083 | 5295 | 124949 |
| Sanford | city | Colorado | United States | 37.25833 | -105.90417 | 7595 | 745 |
| Santa Maria | city | Colorado | United States | 39.44972 | -105.63278 | 8694 | 831 |
| Sapinero | city | Colorado | United States | 38.45944 | -107.30167 | 7795 | 19 |
| Sarcillo | city | Colorado | United States | 37.12556 | -104.75889 | 6601 | 95 |
| Sargents | city | Colorado | United States | 38.40417 | -106.41444 | 8507 | 53 |
| Satank | city | Colorado | United States | 39.41389 | -107.22778 | 6197 | 1491 |
| Saunders | city | Colorado | United States | 38.76028 | -108.00944 | 5088 | 2110 |
| Sawpit | city | Colorado | United States | 37.99528 | -108.00111 | 7992 | 420 |
| Saxton | city | Colorado | United States | 38.76833 | -107.97083 | 5091 | 2416 |
| Schramm | city | Colorado | United States | 40.11389 | -102.60556 | 4012 | 224 |
| Security | city | Colorado | United States | 38.75833 | -104.7425 | 5757 | 73585 |
| Sedalia | city | Colorado | United States | 39.43694 | -104.95917 | 5875 | 4514 |
| Sedgewick historical | city | Colorado | United States | 38.27917 | -106.14722 | 9317 | 33 |
| Sedgwick | city | Colorado | United States | 40.93639 | -102.525 | 3576 | 592 |
| Segundo | city | Colorado | United States | 37.12528 | -104.755 | 6601 | 95 |
| Seibert | city | Colorado | United States | 39.29917 | -102.86861 | 4721 | 75 |
| Selma | city | Colorado | United States | 40.77139 | -103.03056 | 3812 | 112 |
| Semper | city | Colorado | United States | 39.85611 | -105.06417 | 5429 | 169037 |
| Sequndo | city | Colorado | United States | 37.12083 | -104.72167 | 6856 | 94 |
| Seven Hills | city | Colorado | United States | 40.03722 | -105.3325 | 6020 | 59716 |
| Seven Hills | city | Colorado | United States | 40.02639 | -105.31139 | 5951 | 59716 |
| Seven Lakes historical | city | Colorado | United States | 38.78167 | -105.00806 | 10977 | 732 |
| Sevenmile Plaza | city | Colorado | United States | 37.64806 | -106.23694 | 7798 | 654 |
| Severance | city | Colorado | United States | 40.52417 | -104.85056 | 4865 | 3443 |
| Shaffers Crossing | city | Colorado | United States | 39.47861 | -105.36778 | 7998 | 1562 |
| Shamballah-Ashrama | city | Colorado | United States | 39.34306 | -105.03278 | 7116 | 2483 |
| Shamrock | city | Colorado | United States | 39.88528 | -103.81583 | 4819 | 238 |
| Shavano historical | city | Colorado | United States | 38.60278 | -106.28972 | 11197 | 159 |
| Shaw | city | Colorado | United States | 39.55056 | -103.36028 | 5098 | 53 |
| Shawnee | city | Colorado | United States | 39.42111 | -105.55361 | 8198 | 831 |
| Sheephorn | city | Colorado | United States | 39.89222 | -106.46639 | 8503 | 325 |
| Shelton | city | Colorado | United States | 38.08333 | -103.60583 | 4183 | 1032 |
| Sheridan | city | Colorado | United States | 39.64694 | -105.02472 | 5298 | 179589 |
| Sheridan Lake | city | Colorado | United States | 38.46667 | -102.29167 | 4048 | 42 |
| Sherrelwood | city | Colorado | United States | 39.83778 | -105.00083 | 5298 | 182022 |
| Shirley | city | Colorado | United States | 38.90111 | -104.65278 | 6627 | 8546 |
| Shirley historical | city | Colorado | United States | 38.42444 | -106.12778 | 9330 | 114 |
| Sikes | city | Colorado | United States | 38.25833 | -105.07417 | 5885 | 1077 |
| Sillsville | city | Colorado | United States | 38.44667 | -106.76056 | 8169 | 87 |
| Siloam | city | Colorado | United States | 38.25139 | -104.97528 | 5383 | 519 |
| Silt | city | Colorado | United States | 39.54861 | -107.65556 | 5498 | 645 |
| Silver Cliff | city | Colorado | United States | 38.13528 | -105.44583 | 8005 | 173 |
| Silver Heights | city | Colorado | United States | 39.41806 | -104.86528 | 6194 | 11843 |
| Silver Plume | city | Colorado | United States | 39.69611 | -105.72528 | 9143 | 594 |
| Silver Springs | city | Colorado | United States | 40.01556 | -105.45389 | 7992 | 2085 |
| Silver Springs | city | Colorado | United States | 39.45917 | -105.39556 | 8234 | 1212 |
| Silver Spruce | city | Colorado | United States | 40.00472 | -105.34722 | 6049 | 7091 |
| Silverdale historical | city | Colorado | United States | 39.69167 | -105.69556 | 10675 | 641 |
| Silverthorne | city | Colorado | United States | 39.6375 | -106.06139 | 8996 | 1447 |
| Silverton | city | Colorado | United States | 37.81194 | -107.66389 | 9196 | 64 |
| Simla | city | Colorado | United States | 39.14167 | -104.08333 | 5997 | 202 |
| Simpson | city | Colorado | United States | 37.49778 | -104.16667 | 5606 | 14 |
| Singleton | city | Colorado | United States | 39.44306 | -105.60139 | 8398 | 831 |
| Sinnard | city | Colorado | United States | 40.58833 | -105.00278 | 4944 | 28887 |
| Skinners | city | Colorado | United States | 38.76889 | -104.76083 | 5764 | 88895 |
| Sky Village | city | Colorado | United States | 39.55056 | -105.24667 | 7913 | 8346 |
| Slate Creek | city | Colorado | United States | 39.78417 | -106.16278 | 8398 | 651 |
| Slater | city | Colorado | United States | 40.94778 | -107.49722 | 7798 | 28 |
| Slavonia | city | Colorado | United States | 40.78444 | -106.70361 | 8805 | 89 |
| Sloan | city | Colorado | United States | 40.05167 | -104.4875 | 4901 | 327 |
| Smeltertown | city | Colorado | United States | 38.5475 | -106.01389 | 7122 | 4470 |
| Smith Hill | city | Colorado | United States | 39.77833 | -105.45806 | 7988 | 1449 |
| Smith Place | city | Colorado | United States | 38.20167 | -107.05917 | 8861 | 19 |
| Sneffels | city | Colorado | United States | 37.97528 | -107.74917 | 10866 | 278 |
| Snow Water Springs | city | Colorado | United States | 39.26472 | -105.21639 | 6515 | 704 |
| Snowmass | city | Colorado | United States | 39.33167 | -106.98556 | 6998 | 500 |
| Snowmass Village | city | Colorado | United States | 39.21306 | -106.93722 | 8313 | 770 |
| Snyder | city | Colorado | United States | 40.32917 | -103.59583 | 4169 | 2023 |
| Somerset | city | Colorado | United States | 38.92639 | -107.46972 | 7109 | 215 |
| Sopris Plaza historical | city | Colorado | United States | 37.14056 | -104.575 | 6197 | 1738 |
| Sopris historical | city | Colorado | United States | 37.13472 | -104.56389 | 6391 | 1738 |
| South Fork | city | Colorado | United States | 37.67 | -106.63917 | 8684 | 111 |
| South Platte | city | Colorado | United States | 39.4075 | -105.17083 | 6620 | 894 |
| South Roggen | city | Colorado | United States | 40.10222 | -104.33806 | 4809 | 327 |
| Southglenn | city | Colorado | United States | 39.58722 | -104.95222 | 5597 | 142460 |
| Spanish Village | city | Colorado | United States | 40.38444 | -104.54583 | 4599 | 2737 |
| Spar City | city | Colorado | United States | 37.70722 | -106.96778 | 9688 | 33 |
| Spencer Heights | city | Colorado | United States | 40.67417 | -105.78389 | 8198 | 112 |
| Sphinx Park | city | Colorado | United States | 39.42444 | -105.31444 | 7358 | 1139 |
| Spivak | city | Colorado | United States | 39.74472 | -105.0675 | 5370 | 216701 |
| Spook City | city | Colorado | United States | 38.23 | -106.19667 | 9793 | 33 |
| Springdale | city | Colorado | United States | 40.10972 | -105.35778 | 7178 | 2004 |
| Springfield | city | Colorado | United States | 37.40833 | -102.61389 | 4333 | 187 |
| Spruce | city | Colorado | United States | 39.15667 | -104.87778 | 7198 | 2163 |
| Sprucedale | city | Colorado | United States | 39.58889 | -105.35167 | 7644 | 9960 |
| Sprucewood | city | Colorado | United States | 39.34889 | -105.12028 | 7457 | 495 |
| Stage | city | Colorado | United States | 40.61167 | -104.74222 | 4967 | 1327 |
| Stanley Heights Subdivision | city | Colorado | United States | 40.38111 | -105.50389 | 7598 | 1072 |
| Stanley Park | city | Colorado | United States | 39.61833 | -105.29222 | 8054 | 10754 |
| Stapleton | city | Colorado | United States | 37.49889 | -108.40417 | 7253 | 342 |
| Starkville | city | Colorado | United States | 37.11528 | -104.52361 | 6512 | 789 |
| State Bridge | city | Colorado | United States | 39.85778 | -106.64917 | 6876 | 364 |
| Steamboat II | city | Colorado | United States | 40.50806 | -106.90611 | 6584 | 2481 |
| Steamboat Springs | city | Colorado | United States | 40.485 | -106.83111 | 6702 | 2822 |
| Stelbars Lindland | city | Colorado | United States | 40.57444 | -106.06417 | 8635 | 42 |
| Stem Beach | city | Colorado | United States | 38.16389 | -104.64306 | 4924 | 1190 |
| Sterling | city | Colorado | United States | 40.62556 | -103.20722 | 3943 | 5707 |
| Stollsteimer | city | Colorado | United States | 37.14167 | -107.35417 | 6394 | 75 |
| Stone City | city | Colorado | United States | 38.44861 | -104.86056 | 5629 | 103 |
| Stonegate | city | Colorado | United States | 39.53083 | -104.80333 | 5830 | 10089 |
| Stoneham | city | Colorado | United States | 40.60556 | -103.66611 | 4609 | 47 |
| Stoner | city | Colorado | United States | 37.58944 | -108.31944 | 7598 | 246 |
| Stonewall | city | Colorado | United States | 38.63111 | -106.35917 | 11505 | 167 |
| Stonewall | city | Colorado | United States | 37.15222 | -105.01667 | 7982 | 89 |
| Stonewall Gap | city | Colorado | United States | 37.15139 | -105.03806 | 7998 | 89 |
| Stonington | city | Colorado | United States | 37.29361 | -102.18694 | 3805 | 84 |
| Stove Prairie Landing | city | Colorado | United States | 40.6825 | -105.38861 | 6263 | 112 |
| Strasburg | city | Colorado | United States | 39.73833 | -104.32278 | 5370 | 322 |
| Stratmoor | city | Colorado | United States | 38.77389 | -104.77917 | 5797 | 88895 |
| Stratmoor Hills | city | Colorado | United States | 38.78306 | -104.79389 | 5807 | 66520 |
| Stratton | city | Colorado | United States | 38.74778 | -105.14944 | 10396 | 384 |
| Stratton | city | Colorado | United States | 39.30333 | -102.60417 | 4412 | 112 |
| Stratton Meadows | city | Colorado | United States | 38.80333 | -104.81111 | 5977 | 133480 |
| Stringtown | city | Colorado | United States | 39.23361 | -106.31861 | 9881 | 5096 |
| Strong | city | Colorado | United States | 37.7125 | -104.90167 | 6446 | 266 |
| Stuart | city | Colorado | United States | 38.47139 | -102.19417 | 4022 | 42 |
| Sugar | city | Colorado | United States | 38.15028 | -102.66806 | 3697 | 1790 |
| Sugar City | city | Colorado | United States | 38.23194 | -103.6625 | 4297 | 246 |
| Sugar Junction | city | Colorado | United States | 37.56778 | -106.11194 | 7526 | 1250 |
| Sugarloaf | city | Colorado | United States | 40.01694 | -105.40667 | 7621 | 2079 |
| Sullivan | city | Colorado | United States | 39.67139 | -104.8975 | 5495 | 213051 |
| Summerville | city | Colorado | United States | 40.05694 | -105.39389 | 7224 | 2190 |
| Summitville | city | Colorado | United States | 37.43056 | -106.59167 | 11197 | 100 |
| Sunbeam | city | Colorado | United States | 40.55083 | -108.19528 | 5954 | 14 |
| Sunnyside | city | Colorado | United States | 37.84611 | -106.95972 | 9232 | 33 |
| Sunnyside | city | Colorado | United States | 40.00361 | -105.38111 | 6938 | 2079 |
| Sunset | city | Colorado | United States | 40.03583 | -105.46833 | 8156 | 2122 |
| Sunset City | city | Colorado | United States | 38.4125 | -105.41667 | 7641 | 103 |
| Sunshine | city | Colorado | United States | 40.06583 | -105.36611 | 7004 | 4393 |
| Superior | city | Colorado | United States | 39.95278 | -105.16806 | 5564 | 23588 |
| Swallows | city | Colorado | United States | 38.30222 | -104.85972 | 4999 | 1696 |
| Swallows Nest historical | city | Colorado | United States | 37.15722 | -108.46722 | 6115 | 166 |
| Swan historical | city | Colorado | United States | 38.68 | -106.04139 | 7798 | 215 |
| Swink | city | Colorado | United States | 38.01444 | -103.62778 | 4104 | 2975 |
| Switzerland Park | city | Colorado | United States | 40.00139 | -105.43417 | 7988 | 2085 |
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