Eureka township Flag

Eureka township

County Seat:
No
Area (mi²):
36.272
State:
South Dakota

Eureka township is located in McPherson County, South Dakota. Eureka township has a 2026 population of 188. Eureka township is currently growing at a rate of 0.53% annually and its population has increased by 6.82% since the most recent census, which recorded a population of 176 in 2020.

The median age in Eureka township is 58 years: 42.5 years for males, and 61.2 years for females. For every 100 females there are 173.3 males.

188
Total Population
5.2
Density (mi²)
1 0.53%
Growth

Eureka township Population

Eureka township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202618810.53%
202518710.54%
202418610.54%
202318542.21%
202218121.12%
202117931.7%
2020176-1-0.56%
2019169-1-0.59%
201817021.19%
201716800%
201616821.2%
201516610.61%
2014165-1-0.6%
201316610.61%
201216521.23%
201116353.16%
2010161-1-0.62%

Median Age

Overall: 58 years
Female: 61.2 years
Male: 42.5 years

Eureka township Adults

There are 68 adults, (14 of whom are seniors) in Eureka township.

Sex Ratio

Female: 30 (36.6%)
Male: 52 (63.4%)

Demographics

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

Population by Race

Race
Population ↓
Percentage (of total)
White82100%
Race
Population ↓
Percentage (of total)
White82100%

Eureka 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)