| Official Name: | Somerset Township |
| Settlement Type: | Township |
| Image Map1: | Map of Illinois highlighting Jackson County.svg |
| Mapsize1: | 150px |
| Map Caption1: | Jackson County's location in Illinois |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | Jackson |
| Established Title: | Established |
| Established Date: | November 4, 1884 |
| Area Total Sq Mi: | 37.63 |
| Area Land Sq Mi: | 37.13 |
| Area Water Sq Mi: | 0.49 |
| Area Water Percent: | 1.30 |
| Population As Of: | 2010 |
| Population Density Sq Mi: | 113.2 |
| Elevation M: | 124 |
| Elevation Ft: | 407 |
| Coordinates: | 37.8097°N -89.3231°W |
| Timezone: | CST |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Postal Code Type: | ZIP codes |
| Postal Code: | 62924, 62932, 62966, 62994 |
| Blank Name: | FIPS code |
| Blank Info: | 17-077-70408 |
| Pop Est As Of: | 2016 |
| Pop Est Footnotes: | [1] |
| Population Est: | 4075 |
| Unit Pref: | Imperial |
Somerset Township is one of sixteen townships in Jackson County, Illinois, USA. As of the 2010 census, its population was 4,205 and it contained 1,886 housing units.[2]
According to the 2010 census, the township has a total area of, of which (or 98.67%) is land and (or 1.30%) is water.[2]
(This list is based on USGS data and may include former settlements.)
The township contains these four cemeteries: Boucher, Lutheran, Ripley and Zion.