
Fairfield township
- County:
- DeKalb County
- County Seat:
- No
- Area (mi²):
- 35.664
- State:
- Indiana
Fairfield township is located in DeKalb County, Indiana. Fairfield township has a 2025 population of 1,423. Fairfield township is currently growing at a rate of 0.99% annually and its population has increased by 4.4% since the most recent census, which recorded a population of 1,363 in 2020.
The average household income in Fairfield township is $104,876 with a poverty rate of 2.12%. The median age in Fairfield township is 43 years: 42.9 years for males, and 51.5 years for females.