Herrick township
- County:
- Gregory County
- County Seat:
- No
- Area (mi²):
- 42.943
- State:
- South Dakota
Herrick township is located in Gregory County, South Dakota. Herrick township has a 2026 population of 153. Herrick township is currently declining at a rate of 0% annually and its population has increased by 2.68% since the most recent census, which recorded a population of 149 in 2020.
The median household income in Herrick township is $145,608 with a poverty rate of 0%. The median age in Herrick township is 44.6 years: 65.2 years for males, and 37.6 years for females. For every 100 females there are 64.3 males.