Zons (German pronunciation: [tsons]), formerly known as Feste Zons (Fortress Zons), today officially called Stadt Zons (Zons Town) is an old town in Germany on the west bank of the Lower Rhine between Cologne and Düsseldorf. It has been a part (Stadtteil) of the town of Dormagen since 1975. In 2020 its population was 5,452.