57223
Castlewood, South Dakota.
Castlewood, Hamlin County, SD · Watertown, SD metro · population 1,429
to buy the typical home at today's mortgage rate — +$274 (+18%) since Nov 2023.
- 1 year
- Up $36,092 +12%
- $303,716$339,808 since Sep 2025
Monthly payment to buy the typical home
Home value × that month's 30-year mortgage rate, 20% down, principal and interest. This is the line households feel: prices and rates compound each other.
- 57223$1,784
- United States$1,922
Typical home values in zip 57223 rose 11.9% over the past year — faster than the nation's +1.2%.
This zip spans 2 counties: Hamlin County, SD 98% · Deuel County, SD 2%
Zillow also publishes an index for the city itself: Castlewood, SD — measured over the city limits, which is a different area from this zip.
Typical home value — 57223
Mid-tier homes, smoothed and seasonally adjusted.
- 57223$339,808
- Watertown$336,249
- United States$366,157
Within 20 miles
| Miles sorted ascending, activate to sort descending | Zip activate to sort by Zip | City activate to sort by City | Population activate to sort by Population | Rent activate to sort by Rent | Home value activate to sort by Home value |
|---|---|---|---|---|---|
| 9.4 | 57234 | Estelline | 1,339 | — | $287,747 |
| 10.4 | 57241 | Hayti | 936 | — | $313,563 |
| 12.9 | 57248 | Lake Norden | 1,295 | — | $382,110 |
| 14.8 | 57226 | Clear Lake | 1,953 | — | $254,498 |
| 16.1 | 57201 | Watertown | 26,781 | $1,196 | $321,507 |
| 17.8 | 57220 | Bruce | 665 | — | $358,618 |
| 17.9 | 57242 | Hazel | 320 | — | $517,716 |
Coordinates and population from SimpleMaps US Zips (Basic). Rent and home values from Zillow Research.