
Lewis township
- County:
- Union County
- County Seat:
- No
- Area (mi²):
- 38.721
- State:
- Pennsylvania
Lewis township is located in Union County, Pennsylvania. Lewis township has a 2025 population of 1,446. Lewis township is currently declining at a rate of -0.55% annually and its population has decreased by -2.17% since the most recent census, which recorded a population of 1,478 in 2020.
The average household income in Lewis township is $80,778 with a poverty rate of 16.15%. The median age in Lewis township is 37 years: 36.6 years for males, and 37.1 years for females.