Hadley township
- County:
- Pike County
- County Seat:
- No
- Area (mi²):
- 36.821
- State:
- Illinois
Hadley township is located in Pike County, Illinois. Hadley township has a 2026 population of 245. Hadley township is currently declining at a rate of -0.41% annually and its population has decreased by -2% since the most recent census, which recorded a population of 250 in 2020.
The median household income in Hadley township is $83,615 with a poverty rate of 5.03%. The median age in Hadley township is 29.6 years: 28.7 years for males, and 37.3 years for females. For every 100 females there are 140.9 males.