De Smet Flag

De Smet

County Seat:
Yes
Area (mi²):
1.158
State:
South Dakota

De Smet is a city located in Kingsbury County, South Dakota. De Smet has a 2026 population of 1,021. It is also the county seat of Kingsbury County. De Smet is currently declining at a rate of -0.78% annually and its population has decreased by -4.4% since the most recent census, which recorded a population of 1,068 in 2020.

The median household income in De Smet is $67,321 with a poverty rate of 4.58%. The median age in De Smet is 47.3 years: 47.1 years for males, and 47.4 years for females. For every 100 females there are 92.4 males.

1K
Total Population
881
Density (mi²)
-8 -0.78%
Growth

De Smet Population

De Smet Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20261,021-8-0.78%
20251,029-8-0.77%
20241,037-8-0.77%
20231,045-16-1.51%
20221,06130.28%
20211,058-10-0.94%
20201,06830.28%
20191,048-4-0.38%
20181,052-6-0.57%
20171,058-10-0.94%
20161,06870.66%
20151,061-22-2.03%
20141,08300%
20131,083-31-2.78%
20121,114191.74%
20111,09560.55%
20101,087-4-0.37%

Median Age

Overall: 47.3 years
Female: 47.4 years
Male: 47.1 years

De Smet Adults

There are 755 adults, (276 of whom are seniors) in De Smet.

Sex Ratio

Female: 490 (52%)
Male: 453 (48%)

Demographics

The racial composition of De Smet includes 97.67% White, and smaller percentages for Two or more races and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White92197.67%
Two or more races222.33%
Race
Population ↓
Percentage (of total)
White92197.67%
Two or more races222.33%

De Smet Marital Status

Economics and Income Statistics

De Smet 's average per capita income is $51,058. Household income levels show a median of $67,321. The poverty rate stands at 4.58%.

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$109,167-
Families$101,538$113,736
Households$67,321$86,103
Non Families$50,795$58,518

$51,058

Average Income

$67,321

Median Household Income

4.58%

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)