Tetonka township Flag

Tetonka township

County:
Spink County
County Seat:
No
Area (mi²):
58.774
State:
South Dakota

Tetonka township is located in Spink County, South Dakota. Tetonka township has a 2026 population of 41. Tetonka township is currently declining at a rate of -2.38% annually and its population has decreased by -4.65% since the most recent census, which recorded a population of 43 in 2020.

The median age in Tetonka township is 72.3 years: 0 years for males, and 72.6 years for females. For every 100 females there are 57.1 males.

41
Total Population
0.70
Density (mi²)
-1 -2.38%
Growth

Tetonka township Population

Tetonka township Population

Year ↓
Population
Growth
Annual Change
202641-1-2.38%
202542-1-2.33%
20244324.88%
202341-1-2.38%
20224200%
202142-1-2.33%
20204300%
201959-1-1.67%
20186000%
20176000%
201660-1-1.64%
20156100%
20146100%
201361-1-1.61%
20126235.08%
20115911.72%
20105800%

Median Age

Overall: 72.3 years
Female: 72.6 years
Male: 0 years

Tetonka township Adults

There are 22 adults, (14 of whom are seniors) in Tetonka township.

Sex Ratio

Female: 14 (63.6%)
Male: 8 (36.4%)

Demographics

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

Population by Race

Race
Population ↓
Percentage (of total)
White22100%
Race
Population ↓
Percentage (of total)
White22100%

Tetonka township Marital Status

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)