Allen Flag

Allen

County:
Bennett County
County Seat:
No
Area (mi²):
3.244
State:
South Dakota

Allen is a CDP located in Bennett County, South Dakota. Allen has a 2026 population of 962. Allen is currently growing at a rate of 3.66% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.

The median age in Allen is 17.7 years: 12.4 years for males, and 20.6 years for females. For every 100 females there are 60.8 males.

962
Total Population
297
Density (mi²)
34 3.66%
Growth

Allen Population

Allen Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
2026962343.66%
2025928343.8%

Median Age

Overall: 17.7 years
Female: 20.6 years
Male: 12.4 years

Allen Adults

There are 384 adults, (68 of whom are seniors) in Allen.

Sex Ratio

Female: 487 (62.2%)
Male: 296 (37.8%)

Demographics

The racial composition of Allen includes 100% Native American, and smaller percentages for and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
Native American783100%
Race
Population ↓
Percentage (of total)
Native American688.68%
Race
Population ↓
Percentage (of total)
Native American71591.32%

Allen 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)