Armstrong township
- County:
- Vanderburgh County
- County Seat:
- No
- Area (mi²):
- 29.479
- State:
- Indiana
Armstrong township is located in Vanderburgh County, Indiana. Armstrong township has a 2026 population of 1,615. Armstrong township is currently growing at a rate of 0.56% annually and its population has increased by 2.87% since the most recent census, which recorded a population of 1,570 in 2020.
The median household income in Armstrong township is $85,714 with a poverty rate of 8.03%. The median age in Armstrong township is 55.3 years: 46.8 years for males, and 56.6 years for females. For every 100 females there are 112.9 males.