Untersiggenthal
| Untersiggenthal | |
|---|---|
| Location of Untersiggenthal | |
| Coordinates: 47°30′N 8°15′E / 47.500°N 8.250°E | |
| Country | Switzerland | 
| Canton | Aargau | 
| District | Baden | 
| Area | |
|  • Total | 8.36 km2 (3.23 sq mi) | 
| Elevation | 375 m (1,230 ft) | 
| Population  (31 December 2018) | |
|  • Total | 7,240 | 
| • Density | 870/km2 (2,200/sq mi) | 
| Time zone | UTC+01:00 (Central European Time) | 
| • Summer (DST) | UTC+02:00 (Central European Summer Time) | 
| Postal code(s) | 5417 | 
| SFOS number | 4044 | 
| ISO 3166 code | CH-AG | 
| Surrounded by | Brugg, Gebenstorf, Obersiggenthal, Turgi, Villigen, Würenlingen | 
| Website | www SFSO statistics | 
Untersiggenthal is a municipality in the district of Baden in the canton of Aargau in Switzerland, located in the Limmat Valley (German: Limmattal).