
Mayfield township
- County:
- Yankton County
- County Seat:
- No
- Area (mi²):
- 36.513
- State:
- South Dakota
Mayfield township is located in Yankton County, South Dakota. Mayfield township has a 2025 population of 187. Mayfield township is currently growing at a rate of 1.08% annually and its population has increased by 3.31% since the most recent census, which recorded a population of 181 in 2020.
The average household income in Mayfield township is $72,710 with a poverty rate of 6.02%. The median age in Mayfield township is 35.7 years: 27.4 years for males, and 56.8 years for females.