Bad Arolsen
| Bad Arolsen  | |
|---|---|
| The Schlossstrasse in the central district of Bad Arolsen - in the far west the Kirchplatz with church | |
| Location of Bad Arolsen  within Waldeck-Frankenberg   district | |
| Coordinates: 51°22′N 9°1′E / 51.367°N 9.017°E | |
| Country | Germany | 
| State | Hesse | 
| Admin. region | Kassel | 
| District | Waldeck-Frankenberg | 
| Government | |
| • Mayor (2022–28) | Marko Lambion | 
| Area | |
|  • Total | 126.47 km2 (48.83 sq mi) | 
| Elevation | 286 m (938 ft) | 
| Population  (2023-12-31) | |
|  • Total | 15,901 | 
| • Density | 130/km2 (330/sq mi) | 
| Time zone | UTC+01:00 (CET) | 
| • Summer (DST) | UTC+02:00 (CEST) | 
| Postal codes | 34454 | 
| Dialling codes | 05691, 05696 | 
| Vehicle registration | KB, WA | 
| Website | Stadt Bad Arolsen | 
Bad Arolsen (German: [baːt ˈʔaːʁɔlzn̩] ⓘ, until 1997 Arolsen, Bad being the German name for Spa) is a small town in northern Hesse, Germany, in Waldeck-Frankenberg district. From 1655 until 1918 it served as the residence town of the Princes of Waldeck-Pyrmont and then until 1929 as the capital of the Waldeck Free State. The International Tracing Service has its headquarters in Bad Arolsen.