Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Saint Thomas More Roman Catholic Church | Church | 189 | Cook | 41 44 45 N | 087 41 35 W |
| Saint Thomas More Roman Catholic Church | Church | 246 | Kane | 42 02 25 N | 088 19 09 W |
| Saint Thomas More School | School | 189 | Cook | 41 44 43 N | 087 41 34 W |
| Saint Thomas More School | School | 245 | Kane | 42 02 24 N | 088 19 04 W |
| Saint Thomas of Canterbury Elementary School | School | 182 | Cook | 41 58 12 N | 087 39 21 W |
| Saint Thomas of Canterbury Roman Catholic Church | Church | 182 | Cook | 41 58 13 N | 087 39 21 W |
| Saint Thomas of Villanova Church | Church | 219 | Cook | 42 06 58 N | 088 00 51 W |
| Saint Thomas of Villanova School | School | 219 | Cook | 42 07 04 N | 088 00 58 W |
| Saint Thomas School | School | 186 | Cook | 41 52 55 N | 087 45 10 W |
| Saint Thomas School | School | 164 | Jasper | 38 59 26 N | 088 09 53 W |
| Saint Thomas School | School | 204 | Macon | 39 51 54 N | 088 57 39 W |
| Saint Thomas School | School | 274 | McHenry | 42 14 00 N | 088 20 15 W |
| Saint Thomas School | School | 228 | Peoria | 40 44 20 N | 089 34 42 W |
| Saint Thomas School | School | 260 | Stephenson | 42 17 48 N | 089 38 19 W |
| Saint Thomas Spiritual Church | Church | 183 | Cook | 41 49 00 N | 087 36 43 W |
| Saint Thomas the Apostle Catholic Church | Church | 180 | Cook | 41 47 45 N | 087 35 44 W |
| Saint Thomas the Apostle Catholic Church | Church | 283 | McHenry | 42 14 51 N | 088 20 15 W |
| Saint Thomas the Apostle Church | Church | 213 | DuPage | 41 47 01 N | 088 11 18 W |
| Saint Thomas the Apostle Grade School | School | 180 | Cook | 41 47 46 N | 087 35 44 W |
| Saint Thomas United Church of Christ | Church | 187 | Cook | 41 57 00 N | 087 45 06 W |
| Saint Thomas United Methodist Church | Church | 214 | DuPage | 41 50 07 N | 088 03 13 W |
| Saint Timothy Evangelical Lutheran Church | Church | 184 | Cook | 41 55 09 N | 087 44 01 W |
| Saint Timothy Evangelical Lutheran Church | Church | 213 | DuPage | 41 54 01 N | 088 01 02 W |
| Saint Timothy House of Prayer | Church | 182 | Cook | 41 59 38 N | 087 42 58 W |
| Saint Timothy Lutheran Church | Church | 239 | Stark | 41 04 36 N | 089 39 33 W |
| Saint Timothy School | School | 181 | Cook | 41 59 49 N | 087 41 51 W |
| Saint Timothy United Methodist Church | Church | 211 | Montgomery | 39 10 42 N | 089 39 13 W |
| Saint Timothy's Lutheran Church | Church | 185 | Cook | 42 02 41 N | 087 44 08 W |
| Saint Timothys Roman Catholic Church | Church | 181 | Cook | 41 59 47 N | 087 41 51 W |
| Saint Titus Baptist Church | Church | 184 | Cook | 41 51 31 N | 087 43 51 W |
| Saint Turibius Roman Catholic Church | Church | 184 | Cook | 41 47 23 N | 087 43 33 W |
| Saint Turibius School | School | 184 | Cook | 41 47 24 N | 087 43 35 W |
| Saint Ubaldus Cemetery | Cemetery | 183 | Madison | 38 59 24 N | 089 39 58 W |
| Saint Valentine Church | Church | 147 | Jasper | 38 55 18 N | 087 58 42 W |
| Saint Valentine Church | Church | 171 | La Salle | 41 19 48 N | 089 06 45 W |
| Saint Valentine's School (historical) | School | 170 | La Salle | 41 19 48 N | 089 06 44 W |
| Saint Valentines Cemetery | Cemetery | 173 | Bureau | 41 19 59 N | 089 11 11 W |
| Saint Veronica Rectory | Building | 182 | Cook | 41 56 28 N | 087 42 16 W |
| Saint Veronicas School | School | 182 | Cook | 41 56 29 N | 087 42 16 W |
| Saint Viator Elementary School | School | 183 | Cook | 41 56 48 N | 087 43 51 W |
| Saint Viator High School | School | 210 | Cook | 42 05 40 N | 087 58 11 W |
| Saint Viator Roman Catholic Church | Church | 183 | Cook | 41 56 47 N | 087 43 53 W |
| Saint Victors School (historical) | School | 179 | Cook | 41 37 12 N | 087 32 13 W |
| Saint Vincent Cemetery | Cemetery | 185 | La Salle | 41 21 55 N | 089 05 35 W |
| Saint Vincent Cemetery | Cemetery | 177 | Madison | 38 55 42 N | 089 43 06 W |
| Saint Vincent Childrens Home | Building | 258 | Stephenson | 42 17 06 N | 089 36 27 W |
| Saint Vincent de Paul School | School | 233 | Peoria | 40 45 37 N | 089 36 51 W |
| Saint Vincent Depaul High School Seminary | School | 228 | Cook | 41 39 27 N | 087 58 33 W |
| Saint Vincent Ferrer Church | Church | 190 | Cook | 41 54 29 N | 087 48 53 W |
| Saint Vincent Ferrer School | School | 190 | Cook | 41 54 26 N | 087 48 54 W |
| Saint Vincent Memorial Hospital | Hospital | 188 | Christian | 39 33 19 N | 089 17 37 W |
| Saint Vincents Circle | Park | 182 | Cook | 41 55 29 N | 087 39 20 W |
| Saint Vincents Hospital | Hospital | 179 | Cook | 41 53 43 N | 087 37 55 W |
| Saint Vincents Roman Catholic Church | Church | 181 | Cook | 41 55 19 N | 087 39 14 W |
| Saint Vitus Roman Catholic Church | Church | 182 | Cook | 41 51 26 N | 087 40 08 W |
| Saint Vladimirs Ukrainian Orthodox Cathedral | Church | 182 | Cook | 41 54 02 N | 087 41 03 W |
| Saint Volodymyr Ukarianian Catholic Church | Church | 183 | Cook | 41 53 42 N | 087 41 05 W |
| Saint Walter Convent | Building | 196 | Cook | 41 40 46 N | 087 40 47 W |
| Saint Walter School | School | 196 | Cook | 41 40 47 N | 087 40 48 W |
| Saint Walter's Catholic Church | Church | 241 | DuPage | 41 58 48 N | 088 05 05 W |
| Saint Walter's Catholic School | School | 241 | DuPage | 41 58 48 N | 088 05 05 W |
| Saint Walters Roman Catholic Church | Church | 196 | Cook | 41 40 47 N | 087 40 46 W |
| Saint Wenceslaus Catholic Church (historical) | Church | 180 | Cook | 41 52 08 N | 087 38 49 W |
| Saint Wenceslaus Roman Catholic Church | Church | 184 | Cook | 41 56 35 N | 087 43 10 W |
| Saint Wenceslaus School | School | 184 | Cook | 41 56 37 N | 087 43 09 W |
| Saint Wendelin Cemetery | Cemetery | 288 | Carroll | 42 09 18 N | 089 45 02 W |
| Saint Wendelins Catholic Church | Church | 278 | Carroll | 42 09 14 N | 089 44 19 W |
| Saint Williams Church | Church | 198 | Cook | 41 55 36 N | 087 48 05 W |
| Saint Williams School | School | 198 | Cook | 41 55 37 N | 087 48 01 W |
| Saint Willibrords Roman Catholic Church | Church | 181 | Cook | 41 41 12 N | 087 37 11 W |
| Saint Willibrords School | School | 181 | Cook | 41 41 14 N | 087 37 11 W |
| Saint Xavier University | School | 189 | Cook | 41 42 26 N | 087 42 48 W |
| Saint Xavier University - South Campus | School | 212 | Cook | 41 33 48 N | 087 47 05 W |
| Saint Zachary School | School | 202 | Cook | 42 01 46 N | 087 56 03 W |
| Sainte Marie | Populated Place | 148 | Jasper | 38 55 56 N | 088 01 24 W |
| Sainte Marie (historical) | Locale | 190 | Cook | 41 44 00 N | 087 42 42 W |
| Sainte Marie City Cemetery | Cemetery | 145 | Jasper | 38 55 42 N | 088 01 44 W |
| Sainte Marie Elementary School | School | 144 | Jasper | 38 55 46 N | 088 01 34 W |
| Sainte Marie Pilgrim Holiness Church | Church | 146 | Jasper | 38 55 49 N | 088 01 28 W |
| Sainte Marie Post Office | Post Office | 147 | Jasper | 38 55 56 N | 088 01 21 W |
| Sainte Marie Townhall | Building | 145 | Jasper | 38 54 32 N | 087 58 42 W |
| Sainte Valentine Cemetery | Cemetery | 148 | Jasper | 38 55 15 N | 087 58 42 W |
| Saints Cyril and Methodius Catholic Church | Church | 216 | Cook | 41 40 12 N | 087 59 38 W |
| Saints Cyril and Methodius Catholic Church | Church | 168 | Will | 41 32 15 N | 088 03 53 W |
| Saints Cyril and Methodius Polish National Catholic Church | Church | 189 | Cook | 41 55 53 N | 087 46 15 W |
| Saints Cyril and Methodius Roman Catholic Church | Church | 184 | Cook | 41 53 50 N | 087 43 59 W |
| Saints Cyril and Methodius Roman Catholic Church | Church | 182 | Cook | 41 48 10 N | 087 40 05 W |
| Saints Peter and Paul Apostles Roman Catholic Church | Church | 227 | Winnebago | 42 15 22 N | 089 06 18 W |
| Saints Peter and Paul Catholic Church | Church | 185 | Cook | 41 40 03 N | 087 38 28 W |
| Saints Peter and Paul Catholic Church | Church | 180 | Cook | 41 50 15 N | 087 42 53 W |
| Saints Peter and Paul Catholic Church | Church | 197 | Hancock | 40 33 07 N | 091 23 05 W |
| Saints Peter and Paul Catholic Church | Church | 253 | McHenry | 42 12 52 N | 088 14 22 W |
| Saints Peter and Paul Catholic Church | Church | 208 | Monroe | 38 20 08 N | 090 09 07 W |
| Saints Peter and Paul Catholic Church | Church | 207 | Vermilion | 40 02 32 N | 087 38 37 W |
| Saints Peter and Paul Cemetery | Cemetery | 187 | Bureau | 41 19 56 N | 089 13 24 W |
| Saints Peter and Paul Cemetery | Cemetery | 223 | DuPage | 41 46 45 N | 088 08 08 W |
| Saints Peter and Paul Cemetery | Cemetery | 202 | Hancock | 40 33 03 N | 091 21 40 W |
| Saints Peter and Paul Cemetery | Cemetery | 190 | Monroe | 38 20 00 N | 090 09 50 W |
| Saints Peter and Paul Cemetery | Cemetery | 206 | Vermilion | 40 02 15 N | 087 37 34 W |
| Saints Peter and Paul Church | Church | 265 | Kane | 41 57 10 N | 088 32 13 W |
| Saints Peter and Paul Church | Church | 224 | Livingston | 40 45 32 N | 088 17 28 W |
| Saints Peter and Paul Evangelical Lutheran Church | Church | 188 | Cook | 41 50 06 N | 087 49 24 W |
| Saints Peter and Paul High School | School | 180 | Cook | 41 43 49 N | 087 33 08 W |
| Saints Peter and Paul Parochial School | School | 217 | DuPage | 41 46 33 N | 088 08 43 W |
| Saints Peter and Paul Roman Catholic Church | Church | 180 | Bureau | 41 19 35 N | 089 12 13 W |
| Saints Peter and Paul Roman Catholic Church | Church | 181 | Cook | 41 49 31 N | 087 40 03 W |
| Saints Peter and Paul Roman Catholic Church | Church | 217 | DuPage | 41 46 31 N | 088 08 41 W |
| Saints Peter and Paul School | School | 265 | Kane | 41 57 08 N | 088 32 12 W |
| Saints Peter and Paul School | School | 254 | McHenry | 42 12 55 N | 088 14 26 W |
| Saints Peter and Paul School | School | 229 | Winnebago | 42 15 22 N | 089 06 22 W |