| Name | Arnstadt |
| Office head of government | |
| Mayor | |
| Image |  |
| Area (m²) | 55,290,000 |
| Date founded | |
| Elevation (m) | 288 |
| Country | Germany |
| Administrative division | Thuringia |
| Continent | Europe |
| Latitude (°) | 50.8341674805 |
| Waterbody | |
| Longitude (°) | 10.9463891983 |
| Website | http://www.arnstadt.de/ |
| Population (people) | 27,304 (30/09/2019) |
| Demonym |