
Fairfield township
- County:
- Wayne County
- County Seat:
- No
- Area (mi²):
- 36.4
- State:
- Illinois
Fairfield township is located in Wayne County, Illinois. Fairfield township has a 2025 population of 361. Fairfield township is currently declining at a rate of -0.28% annually and its population has decreased by -2.17% since the most recent census, which recorded a population of 369 in 2020.
The average household income in Fairfield township is $101,312 with a poverty rate of 0%. The median age in Fairfield township is 63.8 years: 62 years for males, and 64.6 years for females.