Bad Zurzach is a village and former municipality in the district of Zurzach in the canton of Aargau in Switzerland. It is the seat of the district. 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.

Baldingen is a village and former municipality in the district of Zurzach in canton of Aargau in Switzerland. It is located only 2 km south of the border with Germany.