North Henderson
- County:
- Mercer County
- County Seat:
- No
- Area (mi²):
- 0.226
- State:
- Illinois
North Henderson is a village located in Mercer County, Illinois. North Henderson has a 2026 population of 159. North Henderson is currently declining at a rate of -1.24% annually and its population has decreased by -1.85% since the most recent census, which recorded a population of 162 in 2020.
The median household income in North Henderson is $74,231 with a poverty rate of 0%. The median age in North Henderson is 34.8 years: 29.6 years for males, and 41.7 years for females. For every 100 females there are 198.4 males.