Grant township
- County:
- McCook County
- County Seat:
- No
- Area (mi²):
- 36.113
- State:
- South Dakota
Grant township is located in McCook County, South Dakota. Grant township has a 2026 population of 157. Grant township is currently declining at a rate of -1.26% annually but its population has increased by 4.67% since the most recent census, which recorded a population of 150 in 2020.
The median household income in Grant township is $105,577 with a poverty rate of 15.31%. The median age in Grant township is 23.5 years: 19.5 years for males, and 26.2 years for females. For every 100 females there are 114.7 males.