Isabel Flag

Isabel

County:
Dewey County
County Seat:
No
Area (mi²):
0.845
State:
South Dakota

Isabel is a town located in Dewey County, South Dakota. Isabel has a 2026 population of 159. Isabel is currently growing at a rate of 1.27% annually and its population has increased by 8.9% since the most recent census, which recorded a population of 146 in 2020.

The median household income in Isabel is $68,750 with a poverty rate of 15.89%. The median age in Isabel is 35.4 years: 31.5 years for males, and 35.7 years for females. For every 100 females there are 143.2 males.

159
Total Population
188
Density (mi²)
2 1.27%
Growth

Isabel Population

Isabel Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202615921.27%
202515721.29%
202415596.16%
202314632.1%
2022143-2-1.38%
2021145-1-0.68%
202014600%
201915200%
201815210.66%
201715110.67%
201615096.38%
2015141-2-1.4%
201414342.88%
2013139-1-0.71%
201214032.19%
201113721.48%
201013610.74%

Median Age

Overall: 35.4 years
Female: 35.7 years
Male: 31.5 years

Isabel Adults

There are 144 adults, (25 of whom are seniors) in Isabel.

Sex Ratio

Female: 88 (41.1%)
Male: 126 (58.9%)

Demographics

The racial composition of Isabel includes 72.9% White, 21.03% Native American, and smaller percentages for Black or African American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White15672.9%
Native American4521.03%
Two or more races115.14%
Black or African American20.93%
Race
Population ↓
Percentage (of total)
White15672.9%
Native American4521.03%
Two or more races115.14%
Black or African American20.93%

Isabel Marital Status

Economics and Income Statistics

Isabel 's average per capita income is $47,917. Household income levels show a median of $68,750. The poverty rate stands at 15.89%.

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$96,250-
Families$85,833$80,985
Households$68,750$67,473
Non Families$53,750$46,248

$47,917

Average Income

$68,750

Median Household Income

15.89%

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)