Theresa township
- County:
- Beadle County
- County Seat:
- No
- Area (mi²):
- 33.905
- State:
- South Dakota
Theresa township is located in Beadle County, South Dakota. Theresa township has a 2026 population of 313. Theresa township is currently declining at a rate of 0% annually and its population has increased by 0.32% since the most recent census, which recorded a population of 312 in 2020.
The median household income in Theresa township is $92,031 with a poverty rate of 0%. The median age in Theresa township is 60.7 years: 65.4 years for males, and 55.9 years for females. For every 100 females there are 143.9 males.