East Fork Township (T8+N⅔T7N R3W) is located in Montgomery County, Illinois, United States. As of the 2010 census, its population was 2,566 and it contained 1,093 housing units.

Adjacent townships

• Irving Township (north)
• Witt Township (northeast)
• Fillmore Township (east)
• South Fillmore Township (east)
• Mulberry Grove Township, Bond County (southeast)
• La Grange Township, Bond County (south)
• Shoal Creek Township, Bond County (southwest)
• Grisham Township (west)
• Hillsboro Township (west)
• Butler Grove Township (northwest)

Geography

According to the 2010 census, the township has a total area of 59.66 square miles (154.5 km), of which 57.96 square miles (150.1 km) (or 97.15%) is land and 1.7 square miles (4.4 km) (or 2.85%) is water.

Demographics

Historical population

Census	Pop.	Note	%±
2016 (est.)	2,467
U.S. Decennial Census