Sumner Township, Kankakee County, Illinois
|— Township —|
|Established||October 8, 1855|
|• Supervisor||Larry Ohm|
|• Total||37.25 sq mi (96.47 km2)|
|• Land||37.25 sq mi (96.47 km2)|
|• Water||0 sq mi (0 km2) 0%|
|Elevation||699 ft (213 m)|
|• Density||23.6/sq mi (9.1/km2)|
|Time zone||CST (UTC-6)|
|• Summer (DST)||CDT (UTC-5)|
|ZIP codes||60468, 60940, 60950|
|GNIS feature ID||0429815|
Sumner Township is one of seventeen townships in Kankakee County, Illinois, USA. As of the 2000 census, its population was 879. It was formed as Union Township from part of Yellow Head Township on October 8, 1855; its name changed to Sumner Township on June 27, 1856.
Township Headquarters 
The polling place in Sumner Township is Zion Lutheran Church, which is located in Section 1 in the northeast corner of the township. The road district building is centrally located in the town of Whitaker on 9000 N. Rd.
According to the United States Census Bureau, Sumner Township covers an area of 37.25 square miles (96.5 km2). The land in Sumner Township is predominantly flat, with the exception of a few select areas. The rich, dark prairie soils make the township valuable as farmland. Several small creeks run through the township and flow toward the Kankakee River.
Water bodies 
Many creeks run at a southwest direction toward the township. They provide drainage for the townships farmland and residences. Three of these creeks begin the Will Township, Sumner Township's neighbor to the north in Will County. These include the Marshall Slough, Rock Creek, and the Exline Slough. The Marshall Slough cuts through Sumner Township in the far northwest corner and quickly cuts into Manteno Township. Rock Creek also cuts quickly through the township before it cuts into Manteno Township a mile south of Sumner Township's northern border. The Exline Slough is the biggest creek in Sumner Township and runs all the way from County Line Road at the north edge of the township to 6000 N. Rd. In Section 30 the Canavan Slough, which starts a mile north of the town of Whitaker, joins up with the Exline Slough. Farr Creek begins a half mile south of the southern border of Sumner Township, in Section 32, before crossing the southern border. Tower Creek starts in the northeast quarter of the township and runs into Ganeer Township which is south of Sumner Township.
Adjacent townships 
- Will Township, Will County (north)
- Washington Township, Will County (northeast)
- Yellowhead Township (east)
- Momence Township (southeast)
- Ganeer Township (south)
- Bourbonnais Township (southwest)
- Manteno Township (west)
The township is governed by an elected Town Board of a supervisor and four trustees. The township also has an elected assessor, clerk, highway commissioner and supervisor. The township office is located at 9315 North 8000 East Road, Grank Park, IL 60940.
The township contains these two cemeteries: Heusing and Saint Paul Lutheran.
Political districts 
- Illinois' 11th congressional district
- State House District 79
- State Senate District 40
School districts 
- Grant Park Community Unit School District 6
- Manteno Community Unit School District 5
- "Sumner Township, Kankakee County, Illinois". Geographic Names Information System, U.S. Geological Survey. Retrieved 2010-02-20.
- United States Census Bureau 2007 TIGER/Line Shapefiles
- United States National Atlas