Hamlin County, SD ZIP Codes
7 ZIP codes cover all or part of Hamlin County, South Dakota: 57223, 57234, 57248, 57221, 57241, 57242 and 57271. The Census Bureau counts 6,373 residents in the county, with a median household income of $87,101 and a median home value of $208,600. Median household income ranges from $73,988 in 57221 to $96,364 in 57248. Its largest communities include Lake Norden, Castlewood, Bryant, Hayti and Lake Poinsett.
Hamlin County (Census county figures)
| Measure | Census figure |
|---|---|
| Residents | 6,373 |
| Households | 2,194 |
| Median household income | $87,101 |
| Median home value | $208,600 |
| Median age | 31.8 |
| Median rent | $800 |
All 7 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 6,723 |
| Households (sum of ZIP codes) | 2,339 |
| Median household income, range across ZIP codes | $73,988 (57221) to $96,364 (57248) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $87,006 |
| Homeowners | 82.2% |
| Households with kids under 18 | 36.0% |
| Moved in the past year | 8.9% |
| Carrier routes in EDDM2GO's route library | 3 routes, 898 homes (3 of 7 ZIP codes) |
Top facts
- Highest median household income in Hamlin County: 57248 ($96,364)
- Most residents: 57223 (1,429 people)
- Highest homeownership: 57234 (88.9% own their home)
- Most households with kids: 57221 (46.3% of households)
- Most new movers: 57221 (21.6% moved in last year)
- Youngest median age: 57221 (26.8 years)
- Highest median home value: 57248 ($293,200)
Every ZIP code in Hamlin County
| 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% | — | — | 98% of its land |
| 57234 | Estelline | 1,339 | 497 | $82,358 | $173,000 | 88.9% | 30.4% | 5.1% | 1 | 413 | 43% of its land |
| 57248 | Lake Norden | 1,295 | 426 | $96,364 | $293,200 | 78.2% | 37.8% | 13.9% | 1 | 391 | 81% of its land |
| 57221 | Bryant | 1,158 | 341 | $73,988 | $227,100 | 77.7% | 46.3% | 21.6% | — | — | 73% of its land |
| 57241 | Hayti | 936 | 384 | $85,833 | $123,000 | 70.8% | 33.3% | 3.3% | — | — | 100% of its land |
| 57242 | Hazel | 320 | 102 | $113,958 | $177,100 | 89.2% | 34.3% | 6.9% | 1 | 116 | 80% of its land |
| 57271 | Vienna | 246 | 79 | $85,524 | $307,800 | 92.4% | 16.5% | 7.0% | — | — | 17% of its land |
A ZIP code is listed for Hamlin County when at least 10% of its land is in the county, when it holds at least 10% of the county's land, or when the county is its main county. Totals add up whole ZIP codes, including parts that cross the county line; the Census county figures above do not.
Cities and communities
- Lake Norden — 889 residents · 1 ZIP code
- Castlewood — 804 residents · 1 ZIP code
- Bryant — 727 residents · 1 ZIP code
- Hayti — 444 residents · 1 ZIP code
- Lake Poinsett — 348 residents · 3 ZIP codes
- Hazel — 199 residents · 1 ZIP code
- Claremont Colony — 0 residents · 1 ZIP code
- Poinsett Colony — 0 residents · 1 ZIP code
Price a mailing to Hamlin County ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Hamlin County, SD?
- 57223, 57234, 57248, 57221, 57241, 57242 and 57271. Some cross the county line; the table shows each ZIP's share of land in the county.
- What is the population of Hamlin County?
- 6,373 residents in 2,194 households (ACS 5-year estimates, 2020–2024).
- What is the median household income in Hamlin County?
- $87,101 for the county as a whole. Its ZIP codes range from $73,988 (57221) to $96,364 (57248).
- Which Hamlin County ZIP code has the highest median household income?
- 57248, at $96,364, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in Hamlin County?
- For the 3 of 7 ZIP codes in EDDM2GO's stored route library: 3 carrier routes reaching 898 residential and 22 business mailboxes. The route map loads the rest when you search them.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.