Castlewood Flag

Castlewood

County:
Hamlin County
County Seat:
No
Area (mi²):
34.576
State:
South Dakota

Castlewood is located in Hamlin County, South Dakota. Castlewood has a 2025 population of 265. Castlewood is currently growing at a rate of 1.15% annually and its population has increased by 7.29% since the most recent census, which recorded a population of 247 in 2020.

The average household income in Castlewood is $129,315 with a poverty rate of 0%.The median age in Castlewood is 40.7 years: 45.5 years for males, and 32.3 years for females.

265
Total Population
8
Density (mi²)
3 1.15%
Growth

Castlewood Population

Castlewood Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Castlewood includes 100% White, and smaller percentages for and multiracial populations.

Population by Race

White (100.0%)

Race
Population
Percentage (of total)
White227100%

Castlewood Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Castlewood's average per capita income is $57,000. Household income levels show a median of $88,438. The poverty rate stands at 0%.

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$113,125-
Families$101,875$133,421
Households$88,438$129,315
Non Families--

$57,000

Average Income

$88,438

Median Household Income

0%

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)