| Subject Name: | Herznach-Ueken |
| Municipality Type: | municipality |
| Imagepath Flag: | CHE Herznach-Ueken Flag.svg |
| Canton: | Aargau |
| Iso-Code-Region: | CH-AG |
| Coordinates: | 47.4731°N 8.0517°W |
| Postal Code: | 5027 5028 |
| Municipality Code: | 4186 |
| Area: | 11.37 |
| Elevation: | 417 |
| Population: | 2477 |
| Populationof: | 31 December 2020 |
| Popofyear: | 2020 |
| Website: | https://herznach-ueken.ch/ |
Herznach-Ueken is a municipality in the district of Laufenburg in the canton of Aargau in Switzerland. It was established on 1 January 2023 with the merger of the municipalities of Herznach and Ueken.
On 1 January 2023, the two municipalities of Herznach and Ueken merged to form the new municipality of Herznach-Ueken.[1]
The first blazon of the municipal coat of arms is Gules a Pitcher Vert lip dexter and handled Or. The pitcher on the coat of arms is an attribute of Saint Verena to whom the chapel of Herznach is devoted.[2] The second blazon is Or a St.Catherine's Wheel Sable.[3]