Spirit Mound township
- County:
- Clay County
- County Seat:
- No
- Area (mi²):
- 36.079
- State:
- South Dakota
Spirit Mound township is located in Clay County, South Dakota. Spirit Mound township has a 2026 population of 209. Spirit Mound township is currently declining at a rate of -1.42% annually but its population has increased by 2.45% since the most recent census, which recorded a population of 204 in 2020.
The median household income in Spirit Mound township is $164,643 with a poverty rate of 0%. The median age in Spirit Mound township is 56.8 years: 56.9 years for males, and 56.6 years for females. For every 100 females there are 122.6 males.