| Name | Gelnhausen |
| Office head of government | |
| Mayor | |
| Image |  |
| Area (m²) | 45,180,000 |
| Date founded | After 1170 |
| Elevation (m) | 312 |
| Country | Germany |
| Administrative division | Hesse |
| Continent | Europe |
| Latitude (°) | 50.2000007629 |
| Waterbody | |
| Longitude (°) | 9.1666669846 |
| Website | http://www.gelnhausen.de |
| Population (people) | 23,073 (30/09/2019) |
| Demonym |