| Suomusjärvi | |
| Official Name: | Finnish: Suomusjärven kunta Swedish: Suomusjärvi kommun |
| Settlement Type: | Former municipality |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location within Finland |
| Subdivision Type: | Country |
| Subdivision Name: | Finland |
| Subdivision Type1: | Province |
| Subdivision Name1: | Western Finland |
| Subdivision Type2: | Region |
| Subdivision Name2: | Southwest Finland |
| Subdivision Type3: | Sub-region |
| Subdivision Name3: | Salo |
| Extinct Title: | Merged with Salo |
| Extinct Date: | January 1, 2009 |
| Seat: | Kitula |
| Leader Title: | City manager |
| Leader Name: | Vesa Ketola |
| Unit Pref: | Metric |
| Area Total Km2: | 176.53 |
| Area Land Km2: | 160.15 |
| Area Water Km2: | 16.38 |
| Area Rank: | 349th |
| Population Total: | 1311 |
| Population As Of: | 2003 |
| Population Rank: | 397th |
| Population Density Km2: | auto |
| Population Note: | -1.0 % change |
| Blank Name: | Official languages |
| Blank Info: | Finnish |
| Blank1 Name: | Urbanisation |
| Blank1 Info: | 42.8% |
| Blank2 Name: | Unemployment rate |
| Blank2 Info: | 10.8% |
| Timezone: | EET |
| Utc Offset: | +2 |
| Timezone Dst: | EEST |
| Utc Offset Dst: | +3 |
| Website: | http://www.suomusjarvi.fi/ |
Suomusjärvi (pronounced as /fi/) is a former municipality of Finland. It was consolidated with Salo on January 1, 2009.
It is located in the province of Western Finland and is part of the Southwest Finland region. The municipality had a population of 1,321 (December 31, 2004) and covered an area of 176.53 km2 of which 16.38 km2 is water. The population density was 8.25 inhabitants per km2. Its administrative center is Kitula.
The municipality was unilingually Finnish.
Suomusjärvi was first mentioned in 1540, when it was a part of the parish of Kisko. It got its own chapel community in 1678. The chapel community was also known as Laidike as the church of the community was located in the village of Laidike. A new church was built in the village of Suomusjärvi in 1703, but the parish was still called Laidike in 1722. Suomusjärvi became an independent parish in 1898.[1]
Suomusjärvi was consolidated with Salo in 2009.