Portage township Flag

Portage township

County:
Brown County
County Seat:
No
Area (mi²):
35.652
State:
South Dakota

Portage township is located in Brown County, South Dakota. Portage township has a 2026 population of 33. Portage township is currently declining at a rate of -2.94% annually and its population has decreased by -10.81% since the most recent census, which recorded a population of 37 in 2020.

33
Total Population
0.93
Density (mi²)
-1 -2.94%
Growth

Portage township Population

Portage township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202633-1-2.94%
202534-1-2.86%
202435-1-2.78%
20233600%
202236-1-2.7%
20213700%
20203700%
201957-1-1.72%
20185800%
20175800%
20165800%
20155823.57%
20145600%
20135600%
20125600%
201156-2-3.45%
20105600%

Median Age

Overall: 0 years
Female: 0 years
Male: 0 years

Portage township Adults

There are 21 adults, (21 of whom are seniors) in Portage township.

Sex Ratio

Female: 0 (0%)
Male: 21 (100%)

Demographics

The racial composition of Portage township includes 100% White, and smaller percentages for and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White21100%
Race
Population ↓
Percentage (of total)
White21100%

Portage township Marital Status

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)