Sundern
| Sundern  | |
|---|---|
| Townhall of Sundern | |
| Location of Sundern  within Hochsauerlandkreis   district | |
| Coordinates: 51°19′N 08°00′E / 51.317°N 8.000°E | |
| Country | Germany | 
| State | North Rhine-Westphalia | 
| Admin. region | Arnsberg | 
| District | Hochsauerlandkreis | 
| Subdivisions | 18 | 
| Government | |
| • Mayor (2020–25) | Klaus-Rainer Willeke (SPD) | 
| Area | |
|  • Total | 193.27 km2 (74.62 sq mi) | 
| Highest elevation | 648 m (2,126 ft) | 
| Lowest elevation | 195 m (640 ft) | 
| Population  (2023-12-31) | |
|  • Total | 27,693 | 
| • Density | 140/km2 (370/sq mi) | 
| Time zone | UTC+01:00 (CET) | 
| • Summer (DST) | UTC+02:00 (CEST) | 
| Postal codes | 59846 | 
| Dialling codes | 02933, 02934, 02935, 02393, 02395, 02724 | 
| Vehicle registration | HSK | 
| Website | www.sundern.de | 
Sundern (German pronunciation: [ˈzʊndɐn] ⓘ) is a town in the Hochsauerland district, in North Rhine-Westphalia, Germany. The name Sundern is common in Westphalia, as it means "ground given away for private usage" in the Westphalian dialect.