Grenville township Flag

Grenville township

County:
Day County
County Seat:
No
Area (mi²):
33.553
State:
South Dakota

Grenville township is located in Day County, South Dakota. Grenville township has a 2026 population of 81. Grenville township is currently declining at a rate of 0% annually and its population has increased by 1.25% since the most recent census, which recorded a population of 80 in 2020.

The median household income in Grenville township is $115,938 with a poverty rate of 3.76%. The median age in Grenville township is 60.7 years: 65.9 years for males, and 40.3 years for females. For every 100 females there are 135.4 males.

81
Total Population
2.4
Density (mi²)

Grenville township Population

Grenville township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20268100%
20258100%
20248100%
20238100%
20228111.25%
20218000%
20208000%
20198511.19%
201884-1-1.18%
20178511.19%
20168400%
20158400%
20148411.2%
201383-1-1.19%
201284-2-2.33%
20118622.38%
20108500%

Median Age

Overall: 60.7 years
Female: 40.3 years
Male: 65.9 years

Grenville township Adults

There are 148 adults, (82 of whom are seniors) in Grenville township.

Sex Ratio

Female: 79 (42.5%)
Male: 107 (57.5%)

Demographics

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

Population by Race

Race
Population ↓
Percentage (of total)
White186100%
Race
Population ↓
Percentage (of total)
White186100%

Grenville township Marital Status

Economics and Income Statistics

Grenville township 's average per capita income is $57,868. Household income levels show a median of $115,938. The poverty rate stands at 3.76%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median ↓
Mean
Families$125,526$113,295
Households$115,938$90,680
Married Families--
Non Families-$43,836

$57,868

Average Income

$115,938

Median Household Income

3.76%

Poverty Rate

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)