Sioux Valley township Flag

Sioux Valley township

County:
Union County
County Seat:
No
Area (mi²):
42.08
State:
South Dakota

Sioux Valley township is located in Union County, South Dakota. Sioux Valley township has a 2026 population of 259. Sioux Valley township is currently growing at a rate of 2.78% annually and its population has increased by 14.6% since the most recent census, which recorded a population of 226 in 2020.

The median age in Sioux Valley township is 50.7 years: 50.6 years for males, and 50.9 years for females. For every 100 females there are 93.1 males.

259
Total Population
6.2
Density (mi²)
7 2.78%
Growth

Sioux Valley township Population

Sioux Valley township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202625972.78%
202525272.86%
202424572.94%
202323852.15%
202223352.19%
202122820.88%
202022620.89%
2019291103.56%
201828193.31%
201727262.26%
201626662.31%
2015260-1-0.38%
201426151.95%
201325600%
201225651.99%
201125183.29%
201024410.41%

Median Age

Overall: 50.7 years
Female: 50.9 years
Male: 50.6 years

Sioux Valley township Adults

There are 112 adults, (16 of whom are seniors) in Sioux Valley township.

Sex Ratio

Female: 58 (51.8%)
Male: 54 (48.2%)

Demographics

The racial composition of Sioux Valley township includes 94.64% White, 5.36% Native American, and smaller percentages for and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White10694.64%
Native American65.36%
Race
Population ↓
Percentage (of total)
Native American65.36%
Race
Population ↓
Percentage (of total)
White10694.64%

Sioux Valley 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)