Rümikon
| Rümikon | |
|---|---|
| Location of Rümikon | |
| Coordinates: 47°34′N 8°23′E / 47.567°N 8.383°E | |
| Country | Switzerland | 
| Canton | Aargau | 
| District | Zurzach | 
| Area | |
|  • Total | 2.91 km2 (1.12 sq mi) | 
| Elevation | 343 m (1,125 ft) | 
| Population  (31 December 2018) | |
|  • Total | 333 | 
| • Density | 110/km2 (300/sq mi) | 
| Time zone | UTC+01:00 (Central European Time) | 
| • Summer (DST) | UTC+02:00 (Central European Summer Time) | 
| Postal code(s) | 5464 | 
| SFOS number | 4317 | 
| ISO 3166 code | CH-AG | 
| Surrounded by | Fisibach, Hohentengen am Hochrhein (DE-BW), Mellikon, Wislikofen | 
| Website | www SFSO statistics | 
Rümikon is a village and former municipality in the district of Zurzach in the canton of Aargau in Switzerland. Its late Roman watchtower at the Sandgraben is listed as a heritage site of national significance.
On 1 January 2022 the former municipalities of Bad Zurzach, Baldingen, Böbikon, Kaiserstuhl, Rekingen, Rietheim, Rümikon and Wislikofen merged into the new municipality of Zurzach.