Grenville Flag

Grenville

County:
Day County
County Seat:
No
Area (mi²):
0.237
State:
South Dakota

Grenville is a town located in Day County, South Dakota. Grenville has a 2025 population of 45 . Grenville is currently declining at a rate of 0% annually and its population has increased by 2.27% since the most recent census, which recorded a population of 44 in 2020.

The average household income in Grenville is $66,423 with a poverty rate of 17.14%. The median age in Grenville is 57.7 years: 57.9 years for males, and 56.9 years for females. For every 100 females there are 100.0 males.

45
Total Population
190
Density (mi²)

Grenville Population

Grenville Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Grenville includes 97.14% White, and smaller percentages for other race and multiracial populations.

Population by Race

White (97.14%)

Other race (2.86%)

Race
Population
Percentage (of total)
White6897.14%
Other race22.86%

Grenville Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Grenville's average per capita income is $18,750. Household income levels show a median of $83,125. The poverty rate stands at 17.14%.

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
Married Families$87,604-
Households$83,125$66,423
Families$83,125$63,867
Non Families-$63,375

$18,750

Average Income

$83,125

Median Household Income

17.14%

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)