| Jämsä sub-region Jämsän seutukunta |
|
|---|---|
| — Sub-region — | |
| Country | Finland |
| Region | Central Finland |
| Population (2011) | |
| • Total | 25,209 |
| Time zone | EET (UTC+2) |
| • Summer (DST) | EEST (UTC+3) |
Jämsä sub-region is a subdivision of Central Finland and one of the Sub-regions of Finland since 2009.