
Nashville township
- County:
- Washington County
- County Seat:
- No
- Area (mi²):
- 34.692
- State:
- Illinois
Nashville township is located in Washington County, Illinois. Nashville township has a 2025 population of 3,329. Nashville township is currently declining at a rate of -0.95% annually and its population has decreased by -4.17% since the most recent census, which recorded a population of 3,474 in 2020.
The average household income in Nashville township is $69,171 with a poverty rate of 7.05%. The median age in Nashville township is 43.8 years: 43.9 years for males, and 43.8 years for females.