| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Untersiebenbrunn | city | Niederosterreich | Austria | 48.25 | 16.73 | 830 | 4023 |
| Untersiebenhofen | city | Nordrhein-Westfalen | Germany | 51.93 | 9.07 | 830 | 14778 |
| Untersiegendorf | city | Niederosterreich | Austria | 48.15 | 15.38 | 964 | 5747 |
| Untersiegsdorf | city | Bayern | Germany | 47.82 | 12.64 | 2063 | 18984 |
| Untersiemau | city | Bayern | Germany | 50.19 | 10.97 | 1046 | 17979 |
| Untersiemeringhausen | city | Nordrhein-Westfalen | Germany | 51.08 | 7.49 | 1164 | 24890 |
| Untersievering | city | Wien | Austria | 48.25 | 16.32 | 830 | 236871 |
| Untersiffelhofen | city | Bayern | Germany | 47.76 | 11.28 | 2063 | 2215 |
| Untersiggenthal | city | Aargau | Switzerland | 47.50 | 8.25 | 1230 | 54255 |
| Untersiggingen | city | Baden-Wurttemberg | Germany | 47.78 | 9.38 | 1814 | 12536 |
| Untersimbach | city | Bayern | Germany | 48.80 | 13.05 | 1230 | 9659 |
| Untersimbach | city | Bayern | Germany | 48.49 | 13.36 | 1240 | 14491 |
| Untersimonswald | city | Baden-Wurttemberg | Germany | 48.10 | 8.04 | 1669 | 8743 |
| Untersimtshausen | city | Hessen | Germany | 50.93 | 8.70 | 912 | 7555 |