Lewis township
- County:
- Vigo County
- County Seat:
- No
- Area (mi²):
- 44.058
- State:
- Indiana
Lewis township is located in Vigo County, Indiana. Lewis township has a 2026 population of 1,343. Lewis township is currently declining at a rate of -0.15% annually and its population has decreased by -0.44% since the most recent census, which recorded a population of 1,349 in 2020.
The median household income in Lewis township is $81,964 with a poverty rate of 3.89%. The median age in Lewis township is 37.1 years: 36.4 years for males, and 37.5 years for females. For every 100 females there are 99.6 males.