Taken from the 2019 Census Estimates, Castlewood had an population of 650 people. This is an increase of 3.67% since the 2010 Census (or a decrease of 2.4% since the 2000 Census).
At the time of the 2010 Census, Castlewood had a population of 627 people (or 10.6% of the total population of Hamlin County). This makes Castlewood the county's 2nd most populous community.
The population of Castlewood represents 0.08% of the total population of South Dakota (which has 814,180 people), making it the state's 131st most populous community.
With a 2010 count of 627 people, the population of Castlewood decreased 5.86% from the 2000 Census (with a count of 666 people).
Using our Gazetteer, we found that there are 10 communities that are also named Castlewood - they are located in California, Colorado, Georgia, Kentucky, Louisiana, Missouri, New York, Pennsylvania, South Carolina and Virginia.
We have a couple of sections for those tracing their genealogy.
We created a list of cemeteries that are in the area around Castlewood. Our list includes the location of those cemeteries and we provide an overhead view. See our Cemetery List for Castlewood.
Using the information from an 1895 Atlas, we've created a list of communities that were in the area of Castlewood. Our list includes information such as whether the 1895 community had a post office or railroad service. See our List of 1890's Communities around Castlewood.
We also have a detailed list of newspapers that have been published in the area around Castlewood. See our Newspapers Page for Castlewood.
TripAdvisor Tourism Pages for Castlewood ...
Looking for more information about Castlewood? A wonderful source is the TripAdvisor website. We always start with the TripAdvisor Tourism page, where you can read an overview with links that will help you find lodging, restaurants and attractions.
In addition to the Tourism page for Castlewood, there are neighboring communities that also have Tourism pages. More information about those communities can be found on our TripAdvisor Page for Castlewood.
Adding Castlewood to Our Gazetteer ...
We originally found mention of Castlewood in both the FIPS-55 and the GNIS. For more information, see the FIPS and GNIS Codes sections on our Miscellaneous Page.
From our notes, the earliest published mention we've found for Castlewood was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<7>
From that list, the Castlewood post office opened in 1882.
We also found Castlewood in the book titled Business Atlas and Shippers' Guide (1895).
If you're interested in how the shape of South Dakota's counties, including Hamlin, have changed over time, we recommend the Atlas of Historical County Boundaries.
The elevation is an estimate for the area around Castlewood - it will be higher in some places and lower in others.
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ZIP Codes have been created by the United States Postal Service (USPS) as a way of grouping addresses to make delivery more efficient. The boundaries of the ZIP Code can be changed, re-assigned, eliminated or overlapped with other ZIP Codes. So keep in mind that any given ZIP Code is only 'loosely' associated with a city (such as Castlewood). When looking for a ZIP Code, whether Castlewood or elsewhere, it's always best to check the website of the United States Postal Service (USPS).
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While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program.
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The location has been supplied by the Geographic Names Information System - which is maintained by the U.S. Geological Survey (USGS). While these values should be definitive, we found that accuracy can vary and you should double-check the location if accuracy is required.
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A copy of their list with background information can be found at: