Day County, SD ZIP Codes
9 ZIP codes cover all or part of Day County, South Dakota. The Census Bureau counts 5,437 residents in the county, with a median household income of $66,033 and a median home value of $173,600. Median household income ranges from $48,167 in 57273 to $68,083 in 57274. Its largest communities include Webster, Waubay, Enemy Swim, Bristol and Pierpont.
Day County (Census county figures)
| Measure | Census figure |
|---|---|
| Residents | 5,437 |
| Households | 2,371 |
| Median household income | $66,033 |
| Median home value | $173,600 |
| Median age | 44.8 |
| Median rent | $660 |
All 9 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 6,396 |
| Households (sum of ZIP codes) | 2,680 |
| Median household income, range across ZIP codes | $48,167 (57273) to $68,083 (57274) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $62,774 |
| Homeowners | 75.6% |
| Households with kids under 18 | 24.7% |
| Moved in the past year | 12.5% |
| Carrier routes in EDDM2GO's route library | 11 routes, 1,715 homes (5 of 9 ZIP codes) |
Top facts
- Highest median household income in Day County: 57274 ($68,083)
- Most residents: 57274 (2,621 people)
- Highest homeownership: 57274 (74.5% own their home)
- Most households with kids: 57273 (29.1% of households)
- Most new movers: 57274 (15.6% moved in last year)
- Youngest median age: 57274 (41.5 years)
- Highest median home value: 57273 ($177,400)
Every ZIP code in Day County
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 57274 | Webster | 2,621 | 1,183 | $68,083 | $173,200 | 74.5% | 25.0% | 15.6% | 5 | 1,452 | 93% of its land |
| 57273 | Waubay | 1,165 | 430 | $48,167 | $177,400 | 74.0% | 29.1% | 11.3% | — | — | 75% of its land |
| 57454 | Langford | 732 | 236 | $81,250 | $155,300 | 85.2% | 26.3% | 6.1% | 1 | 167 | 30% of its land |
| 57219 | Bristol | 552 | 236 | $51,900 | $95,700 | 61.0% | 31.4% | 14.9% | — | — | 100% of its land |
| 57239 | Grenville | 358 | 186 | $106,389 | $377,300 | 88.7% | 3.2% | 5.6% | — | — | 100% of its land |
| 57468 | Pierpont | 279 | 128 | $76,250 | $112,500 | 85.2% | 26.6% | 3.3% | 1 | 69 | 100% of its land |
| 57261 | Roslyn | 277 | 111 | $77,813 | $167,500 | 61.3% | 28.8% | 32.0% | — | — | 100% of its land |
| 57256 | Ortley | 238 | 88 | $66,500 | $225,000 | 86.4% | 23.9% | 0.4% | 2 | 69 | 13% of its land |
| 57422 | Andover | 174 | 82 | $88,125 | — | 78.0% | 14.6% | 7.5% | 2 | 91 | 96% of its land |
A ZIP code is listed for Day 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
- Webster — 1,896 residents · 1 ZIP code
- Waubay — 337 residents · 1 ZIP code
- Enemy Swim — 301 residents · 1 ZIP code
- Bristol — 275 residents · 1 ZIP code
- Pierpont — 161 residents · 1 ZIP code
- Roslyn — 147 residents · 1 ZIP code
- Ortley — 73 residents · 2 ZIP codes
- Grenville — 53 residents · 2 ZIP codes
- Andover — 31 residents · 1 ZIP code
- Butler — 2 residents · 1 ZIP code
Price a mailing to Day County ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Day County, SD?
- 57274, 57273, 57454, 57219, 57239, 57468, 57261, 57256 and 57422. Some cross the county line; the table shows each ZIP's share of land in the county.
- What is the population of Day County?
- 5,437 residents in 2,371 households (ACS 5-year estimates, 2020–2024).
- What is the median household income in Day County?
- $66,033 for the county as a whole. Its ZIP codes range from $48,167 (57273) to $68,083 (57274).
- Which Day County ZIP code has the highest median household income?
- 57274, at $68,083, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in Day County?
- For the 5 of 9 ZIP codes in EDDM2GO's stored route library: 11 carrier routes reaching 1,715 residential and 133 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.