Gmunden covers an area of 63.49 square kilometres (24.51 sq mi) and has a median elevation of 425 metres (1,394 ft).

Largest non-EU minorities were from Bosnia and Herzegovina (3.6%) and the former FR Yugoslavia (i.e. present-day Serbia, Montenegro, Kosovo; 2.7%), followed by Turks (1.2%) and Germans (1.1%).

Gmunden supplied naval ships to Austria during the 17th century and helped wounded soldiers in hospitals in World War I.

[6] In later years, it was much frequented as a health and summer resort, and had a variety of lake, brine, vegetable and pine-cone baths, a hydropathic establishment, inhalation chambers, whey cure, etc.

In the last municipal election in 2021, the following are seats won by the political parties: 16 ÖVP, 7 GRÜNE, 5 SPÖ, 5 FPÖ und 4 NEOS.