| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Siesegem | city | Provincie Oost-Vlaanderen | Belgium | 50.93 | 4.02 | 68 | 68164 |
| Sijngel | city | Provincie Oost-Vlaanderen | Belgium | 51.17 | 3.67 | 9 | 15952 |
| Simoenenhoek | city | Provincie Oost-Vlaanderen | Belgium | 50.82 | 3.92 | 75 | 21750 |
| Sinaai | city | Provincie Oost-Vlaanderen | Belgium | 51.15 | 4.05 | 26 | 43379 |
| Sinay | city | Provincie Oost-Vlaanderen | Belgium | 51.15 | 4.05 | 26 | 43379 |
| Singel | city | Provincie Oost-Vlaanderen | Belgium | 51.17 | 3.67 | 9 | 15952 |
| Singelberg | city | Provincie Oost-Vlaanderen | Belgium | 51.23 | 4.25 | 9 | 27008 |
| Sint Gillis | city | Provincie Oost-Vlaanderen | Belgium | 51.02 | 4.12 | 13 | 55750 |
| Sint Goriks-Oudehove | city | Provincie Oost-Vlaanderen | Belgium | 50.85 | 3.78 | 223 | 26198 |
| Sint Janswyk | city | Provincie Oost-Vlaanderen | Belgium | 50.93 | 3.63 | 29 | 28650 |
| Sint Margriet | city | Provincie Oost-Vlaanderen | Belgium | 51.28 | 3.53 | 3 | 6405 |
| Sint-Amands Wijk | city | Provincie Oost-Vlaanderen | Belgium | 50.93 | 3.68 | 121 | 29208 |
| Sint-Amandsberg | city | Provincie Oost-Vlaanderen | Belgium | 51.07 | 3.75 | 19 | 100566 |
| Sint-Anna | city | Provincie Oost-Vlaanderen | Belgium | 51.10 | 4.08 | 9 | 45117 |
| Sint-Antelinks | city | Provincie Oost-Vlaanderen | Belgium | 50.85 | 3.92 | 173 | 18803 |
| Sint-Blasius-Boekel | city | Provincie Oost-Vlaanderen | Belgium | 50.85 | 3.72 | 229 | 12133 |
| Sint-Denijs-Boekel | city | Provincie Oost-Vlaanderen | Belgium | 50.87 | 3.72 | 147 | 10743 |
| Sint-Denijs-Westrem | city | Provincie Oost-Vlaanderen | Belgium | 51.02 | 3.67 | 19 | 90138 |
| Sint-Gillis-Waas | city | Provincie Oost-Vlaanderen | Belgium | 51.22 | 4.13 | 9 | 35690 |
| Sint-Gillis-bij-Dendermonde | city | Provincie Oost-Vlaanderen | Belgium | 51.02 | 4.12 | 13 | 55750 |
| Sint-Goriks-Oudenhove | city | Provincie Oost-Vlaanderen | Belgium | 50.85 | 3.78 | 223 | 26198 |
| Sint-Hubertus | city | Provincie Oost-Vlaanderen | Belgium | 50.97 | 3.53 | 39 | 31796 |
| Sint-Jan-in-Eremo | city | Provincie Oost-Vlaanderen | Belgium | 51.27 | 3.58 | 3 | 3178 |
| Sint-Jans Goed | city | Provincie Oost-Vlaanderen | Belgium | 51.20 | 3.55 | 13 | 31035 |
| Sint-Janswijk | city | Provincie Oost-Vlaanderen | Belgium | 50.93 | 3.63 | 29 | 28650 |
| Sint-Job | city | Provincie Oost-Vlaanderen | Belgium | 50.93 | 4.03 | 29 | 71231 |
| Sint-Kornelis-Horebeke | city | Provincie Oost-Vlaanderen | Belgium | 50.83 | 3.70 | 203 | 14858 |
| Sint-Kruis-Winkel | city | Provincie Oost-Vlaanderen | Belgium | 51.15 | 3.82 | 9 | 66092 |
| Sint-Laureins | city | Provincie Oost-Vlaanderen | Belgium | 51.25 | 3.52 | 6 | 15309 |
| Sint-Lievens-Essche | city | Provincie Oost-Vlaanderen | Belgium | 50.85 | 3.87 | 232 | 26287 |
| Sint-Lievens-Esse | city | Provincie Oost-Vlaanderen | Belgium | 50.85 | 3.87 | 232 | 26287 |
| Sint-Lievens-Houtem | city | Provincie Oost-Vlaanderen | Belgium | 50.92 | 3.85 | 196 | 39664 |
| Sint-Margriete | city | Provincie Oost-Vlaanderen | Belgium | 51.28 | 3.53 | 3 | 6405 |
| Sint-Maria-Horebeke | city | Provincie Oost-Vlaanderen | Belgium | 50.83 | 3.70 | 203 | 14858 |
| Sint-Maria-Latem | city | Provincie Oost-Vlaanderen | Belgium | 50.88 | 3.70 | 62 | 15340 |
| Sint-Maria-Lierde | city | Provincie Oost-Vlaanderen | Belgium | 50.82 | 3.85 | 111 | 28309 |
| Sint-Maria-Oudenhove | city | Provincie Oost-Vlaanderen | Belgium | 50.83 | 3.78 | 262 | 23531 |
| Sint-Martens-Latem | city | Provincie Oost-Vlaanderen | Belgium | 51.02 | 3.63 | 16 | 72822 |
| Sint-Martens-Leerne | city | Provincie Oost-Vlaanderen | Belgium | 51.02 | 3.58 | 26 | 44696 |
| Sint-Martens-Lierde | city | Provincie Oost-Vlaanderen | Belgium | 50.80 | 3.82 | 118 | 22364 |
| Sint-Niklaas | city | Provincie Oost-Vlaanderen | Belgium | 51.17 | 4.13 | 55 | 59259 |
| Sint-Onolfs | city | Provincie Oost-Vlaanderen | Belgium | 51.05 | 4.07 | 6 | 51638 |
| Sint-Onolfs-Dijk | city | Provincie Oost-Vlaanderen | Belgium | 51.05 | 4.07 | 6 | 51638 |
| Sint-Pauwels | city | Provincie Oost-Vlaanderen | Belgium | 51.20 | 4.10 | 16 | 47925 |
| Sint-Pieters ten Berge | city | Provincie Oost-Vlaanderen | Belgium | 50.88 | 3.73 | 78 | 11363 |
| Sint-Pieters ten Bergen | city | Provincie Oost-Vlaanderen | Belgium | 50.88 | 3.73 | 78 | 11363 |
| Sint-Pieters-Aalst | city | Provincie Oost-Vlaanderen | Belgium | 51.03 | 3.70 | 26 | 103199 |
| Sint-Roch | city | Provincie Oost-Vlaanderen | Belgium | 50.88 | 3.88 | 167 | 32973 |
| Sint-Rochus | city | Provincie Oost-Vlaanderen | Belgium | 50.88 | 3.88 | 167 | 32973 |