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 2025 population of 76. Grenville township is currently declining at a rate of 0% annually and its population has increased by 1.33% since the most recent census, which recorded a population of 75 in 2020.

The average household income in Grenville township is $90,841 with a poverty rate of 5.42%. The median age in Grenville township is 60.4 years: 60.8 years for males, and 40.5 years for females.

76
Total Population
2
Density (mi²)
0 0%
Growth

Grenville township Population

Grenville township Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Grenville township includes 100% White, and smaller percentages for Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander, other race, Two or more races and multiracial populations.

Population by Race

White

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Other race

Two or more races

Race
Population
Percentage (of total)
White166100%
Black or African American00%
Native American00%
Asian00%
Native Hawaiian or Pacific Islander00%
Other race00%
Two or more races00%

Grenville township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Grenville township's average per capita income is $56,538. Household income levels show a median of $0. The poverty rate stands at 5.42%.

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$120,156$108,934
Households-$90,841
Married Families--
Non Families--

$56,538

Average Income

$0

Median Household Income

5.42%

Poverty Rate

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)