Eliza township
- County:
- Mercer County
- County Seat:
- No
- Area (mi²):
- 57.372
- State:
- Illinois
Eliza township is located in Mercer County, Illinois. Eliza township has a 2026 population of 401. Eliza township is currently declining at a rate of -0.99% annually and its population has decreased by -1.96% since the most recent census, which recorded a population of 409 in 2020.
The median household income in Eliza township is $129,167 with a poverty rate of 3.38%. The median age in Eliza township is 42.1 years: 44.5 years for males, and 17.5 years for females. For every 100 females there are 55.8 males.