Opdahl township
- County:
- Hamlin County
- County Seat:
- No
- Area (mi²):
- 33.936
- State:
- South Dakota
Opdahl township is located in Hamlin County, South Dakota. Opdahl township has a 2026 population of 210. Opdahl township is currently growing at a rate of 1.94% annually and its population has increased by 8.81% since the most recent census, which recorded a population of 193 in 2020.
The median household income in Opdahl township is $45,938 with a poverty rate of 0%. The median age in Opdahl township is 46.7 years: 26.8 years for males, and 47.8 years for females. For every 100 females there are 133.3 males.