| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Sędeń Jeziorko | city | Mazowieckie | Poland | 52.51 | 19.60 | 236 | 17567 |
| Sędeń Mały | city | Mazowieckie | Poland | 52.49 | 19.57 | 269 | 3065 |
| Sędeń Wielki | city | Mazowieckie | Poland | 52.50 | 19.58 | 242 | 4520 |
| Sękocin Nowy | city | Mazowieckie | Poland | 52.12 | 20.90 | 301 | 25994 |
| Sękocin Stary | city | Mazowieckie | Poland | 52.11 | 20.88 | 331 | 23315 |
| Sękocina | city | Mazowieckie | Poland | 52.11 | 20.89 | 305 | 24103 |