Frankfort township
- County:
- Spink County
- County Seat:
- No
- Area (mi²):
- 35.105
- State:
- South Dakota
Frankfort township is located in Spink County, South Dakota. Frankfort township has a 2025 population of 47. Frankfort township is currently growing at a rate of 2.17% annually and its population has increased by 4.44% since the most recent census, which recorded a population of 45 in 2020.
The median age in Frankfort township is 59.5 years: 0 years for males, and 0 years for females.