Portland township
- County:
- Deuel County
- County Seat:
- No
- Area (mi²):
- 35.272
- State:
- South Dakota
Portland township is located in Deuel County, South Dakota. Portland township has a 2026 population of 61. Portland township is currently growing at a rate of 1.67% annually and its population has increased by 1.67% since the most recent census, which recorded a population of 60 in 2020.
The median household income in Portland township is $80,438 with a poverty rate of 0%. The median age in Portland township is 69.2 years: 69.4 years for males, and 69 years for females. For every 100 females there are 104.2 males.