Grand Prairie Township is one of sixteen townships in Jefferson County, Illinois, USA. As of the 2010 census, its population was 909 and it contained 391 housing units.

Geography

According to the 2010 census, the township (T1S R1E) has a total area of 36.29 square miles (94.0 km), of which 36.18 square miles (93.7 km) (or 99.70%) is land and 0.11 square miles (0.28 km) (or 0.30%) is water.

Cities, towns, villages

• Centralia (south edge)

Unincorporated towns

• Baldwin Heights at 38°27′00″N 89°08′42″W / 38.450°N 89.145°W / 38.450; -89.145
• Cravat at 38°25′26″N 89°05′35″W / 38.424°N 89.093°W / 38.424; -89.093

(This list is based on USGS data and may include former settlements.)

Adjacent townships

• Centralia Township, Marion County (north)
• Raccoon Township, Marion County (northeast)
• Rome Township (east)
• Shiloh Township (southeast)
• Casner Township (south)
• Richview Township, Washington County (southwest)
• Irvington Township, Washington County (west)

Cemeteries

The township contains these four cemeteries: Fouts, Gaston, Gilead and Piskey.

Major highways

• Interstate 64
• U.S. Route 51

Airports and landing strips

• Prairie Airport

Lakes

• Superior Lake

Demographics

Historical population

Census	Pop.	Note	%±
2016 (est.)	897
U.S. Decennial Census

Political districts

• Illinois' 19th congressional district
• State House District 107
• State Senate District 54