Castlewood Flag

Castlewood

County:
Hamlin County
County Seat:
No
Area (mi²):
1.15
State:
South Dakota

Castlewood is a city located in Hamlin County, South Dakota. Castlewood has a 2026 population of 724. Castlewood is currently growing at a rate of 0.56% annually and its population has increased by 3.43% since the most recent census, which recorded a population of 700 in 2020.

The median household income in Castlewood is $87,045 with a poverty rate of 4.35%. The median age in Castlewood is 36.5 years: 36.5 years for males, and 36.3 years for females. For every 100 females there are 111.6 males.

724
Total Population
629
Density (mi²)
4 0.56%
Growth

Castlewood Population

Castlewood Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202672440.56%
202572040.56%
202471660.85%
2023710-6-0.84%
202271681.13%
202170881.14%
202070000%
2019650111.72%
201863940.63%
2017635111.76%
2016624-6-0.95%
201563081.29%
201462230.48%
2013619-8-1.28%
2012627-2-0.32%
201162920.32%
201062810.16%

Median Age

Overall: 36.5 years
Female: 36.3 years
Male: 36.5 years

Castlewood Adults

There are 539 adults, (91 of whom are seniors) in Castlewood.

Sex Ratio

Female: 380 (47.3%)
Male: 424 (52.7%)

Demographics

The racial composition of Castlewood includes 90.8% White, and smaller percentages for other race, Black or African American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White73090.8%
Two or more races597.34%
Other race101.24%
Black or African American50.62%
Race
Population ↓
Percentage (of total)
Two or more races40.5%
Race
Population ↓
Percentage (of total)
White73090.8%
Two or more races556.84%
Other race101.24%
Black or African American50.62%

Castlewood Marital Status

Economics and Income Statistics

Castlewood 's average per capita income is $48,333. Household income levels show a median of $87,045. The poverty rate stands at 4.35%.

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$93,375-
Families$92,115$95,296
Households$87,045$92,403
Non Families$40,000$81,332

$48,333

Average Income

$87,045

Median Household Income

4.35%

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)