
Vermillion township
- County:
- Clay County
- County Seat:
- No
- Area (mi²):
- 36.034
- State:
- South Dakota
Vermillion township is located in Clay County, South Dakota. Vermillion township has a 2025 population of 88. Vermillion township is currently growing at a rate of 2.33% annually and its population has increased by 6.02% since the most recent census, which recorded a population of 83 in 2020.
The average household income in Vermillion township is $117,955 with a poverty rate of 0%. The median age in Vermillion township is 58.4 years: 58.3 years for males, and 58.6 years for females.