| Name | Kōshū, Yamanashi |
| Office head of government | |
| Mayor | |
| Image |  |
| Area (m²) | 264,010,016 |
| Date founded | 01/11/2005 |
| Elevation (m) | |
| Country | Japan |
| Administrative division | Yamanashi Prefecture |
| Continent | Asia |
| Latitude (°) | 35.7000007629 |
| Waterbody | |
| Longitude (°) | 138.7333374023 |
| Website | https://www.city.koshu.yamanashi.jp/ |
| Population (people) | 29,705 (01/10/2019) |
| Demonym |