Riverside township Flag

Riverside township

County:
Brown County
County Seat:
No
Area (mi²):
35.999
State:
South Dakota

Riverside township is located in Brown County, South Dakota. Riverside township has a 2026 population of 59. Riverside township is currently declining at a rate of -1.67% annually and its population has decreased by -7.81% since the most recent census, which recorded a population of 64 in 2020.

The median age in Riverside township is 62.7 years: 0 years for males, and 62.4 years for females. For every 100 females there are 111.4 males.

59
Total Population
1.6
Density (mi²)
-1 -1.67%
Growth

Riverside township Population

Riverside township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202659-1-1.67%
202560-1-1.64%
202461-1-1.61%
202362-1-1.59%
20226300%
202163-1-1.56%
20206400%
20195900%
201859-1-1.67%
20176011.69%
20165900%
20155900%
201459-1-1.67%
20136023.45%
20125800%
20115800%
20105800%

Median Age

Overall: 62.7 years
Female: 62.4 years
Male: 0 years

Riverside township Adults

There are 93 adults, (40 of whom are seniors) in Riverside township.

Sex Ratio

Female: 44 (47.3%)
Male: 49 (52.7%)

Demographics

The racial composition of Riverside township includes 88.17% White, 11.83% Native American, and smaller percentages for and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White8288.17%
Native American1111.83%
Race
Population ↓
Percentage (of total)
White8288.17%
Native American1111.83%

Riverside 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)