Bethel township
- County:
- McDonough County
- County Seat:
- No
- Area (mi²):
- 36.636
- State:
- Illinois
Bethel township is located in McDonough County, Illinois. Bethel township has a 2026 population of 298. Bethel township is currently declining at a rate of -1% annually and its population has decreased by -1.97% since the most recent census, which recorded a population of 304 in 2020.
The median age in Bethel township is 47.6 years: 33.8 years for males, and 47.9 years for females. For every 100 females there are 166.3 males.