Castlewood, SD ZIP Codes
One ZIP code serves Castlewood, South Dakota: 57223. Together they are home to 1,429 residents in 510 households. That is more than the 804 people counted inside Castlewood city limits, because these ZIP codes reach past its boundary.
Castlewood city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 804 |
| Households | 292 |
| Median household income | $87,045 |
| Median home value | $198,200 |
| Median age | 36.5 |
| Median rent | $1,139 |
All 1 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 1,429 |
| Households (sum of ZIP codes) | 510 |
| Median household income, range across ZIP codes | $92,424 (57223) to $92,424 (57223) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $92,424 |
| Homeowners | 87.6% |
| Households with kids under 18 | 38.4% |
| Moved in the past year | 2.3% |
| Carrier routes in EDDM2GO's route library | not loaded yet |
Every ZIP code in Castlewood
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 57223 | Castlewood | 1,429 | 510 | $92,424 | $236,600 | 87.6% | 38.4% | 2.3% | — | — | 1% of its land; mailing city |
A ZIP code is listed for Castlewood when at least 10% of its land lies inside Castlewood city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Castlewood. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Castlewood.
Counties
- Hamlin County — 7 ZIP codes
Price a mailing to Castlewood ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Castlewood, SD?
- 57223. A ZIP code is listed for Castlewood when at least 10% of its land lies inside Castlewood city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Castlewood.
- What is the population of Castlewood, SD?
- The Census Bureau counts 804 residents inside Castlewood city limits (ACS 2020–2024). The 1 ZIP code that serve Castlewood hold 1,429 residents in all.
- What is the median household income in Castlewood, SD?
- $87,045 inside Castlewood city limits, per the Census Bureau. Across its ZIP codes the medians run from $92,424 to $92,424.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.