Elfingen
| Elfingen | |
|---|---|
| Location of Elfingen | |
| Coordinates: 47°31′N 8°6′E / 47.517°N 8.100°E | |
| Country | Switzerland | 
| Canton | Aargau | 
| District | Laufenberg | 
| Area | |
|  • Total | 4.21 km2 (1.63 sq mi) | 
| Elevation | 457 m (1,499 ft) | 
| Population  (31 December 2018) | |
|  • Total | 300 | 
| • Density | 71/km2 (180/sq mi) | 
| Time zone | UTC+01:00 (Central European Time) | 
| • Summer (DST) | UTC+02:00 (Central European Summer Time) | 
| Postal code(s) | 5077 | 
| SFOS number | 4097 | 
| ISO 3166 code | CH-AG | 
| Surrounded by | Bözen, Effingen, Hornussen, Mönthal, Sulz | 
| Website | elfingen SFSO statistics | 
Elfingen is a former municipality in the district of Laufenberg in canton of Aargau in Switzerland. On 1 January 2022 the former municipalities of Bözen, Effingen, Elfingen and Hornussen merged into the new municipality of Böztal.