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 716. Castlewood is currently growing at a rate of 0.85% annually and its population has increased by 2.29% since the most recent census, which recorded a population of 700 in 2020.

716
Total Population
622
Density (mi²)
6 0.85%
Growth

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)