Spencer township
- County:
- Owen County
- County Seat:
- No
- Area (mi²):
- 38.325
- State:
- Indiana
Spencer township is located in Owen County, Indiana. Spencer township has a 2026 population of 1,810. Spencer township is currently declining at a rate of 0% annually and its population has increased by 1.46% since the most recent census, which recorded a population of 1,784 in 2020.
The median household income in Spencer township is $95,793 with a poverty rate of 4.45%. The median age in Spencer township is 44.1 years: 51.1 years for males, and 41.7 years for females. For every 100 females there are 101.3 males.