Richwood Township is one of eleven townships in Jersey County, Illinois, United States. As of the 2010 census, its population was 653 and it contained 302 housing units.

Geography

According to the 2010 census, the township has a total area of 37.91 square miles (98.2 km), of which 37.66 square miles (97.5 km) (or 99.34%) is land and 0.25 square miles (0.65 km) (or 0.66%) is water.

Cities, towns, villages

• Fieldon

Unincorporated towns

• Reardon
• Reddish
• Spankey

Adjacent townships

• Woodville Township, Greene County (north)
• Kane Township, Greene County (northeast)
• English Township (east)
• Otter Creek Township (southeast)
• Rosedale Township (south)

Cemeteries

The township contains these three cemeteries: Gunterman, Reddish and Reddish-Dunham Ford.

Major highways

• Illinois Route 16
• Illinois Route 100

Rivers

• Illinois River

Demographics

Historical population

Census	Pop.	Note	%±
2016 (est.)	614
U.S. Decennial Census

School districts

• Jersey Community Unit School District 100

Political districts

• Illinois's 17th congressional district
• State House District 97
• State Senate District 49