County ZIP codes · South Dakota · FIPS 46027
Clay County, SD ZIP Codes
Clay County, South Dakota has 8 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 3 of the residential ones lie mainly in Clay County and 5 mainly in a neighboring county; 7 cross the county line. Median household income ranges from $53,327 in 57069 (Vermillion) to $88,750 in 57004 (Beresford) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Clay County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are its ZIP codes?
They carry 8 postal town names: Vermillion, Beresford, Centerville, Irene, Gayville, Burbank, Wakonda, Volin.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 8 residential ZIP codes in Clay County
3 ZIP codes lie mainly in Clay County; 5 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 57069 | Vermillion | 13,091 | 77 | $53k | $231k | 100% |
| 57010 | Burbank | 755 | 12 | $94k | $296k | 69% |
| 57073 | Wakonda | 564 | 8 | $73k | $116k | 96% |
Partly in Clay County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 57014 | Centerville | 1,667 | 12 | $77k | $261k | 33% |
| 57072 | Volin | 435 | 6 | $92k | $170k | 28% |
| 57004 | Beresford | 3,834 | 20 | $89k | $264k | 26% |
| 57031 | Gayville | 784 | 20 | $65k | $137k | 23% |
| 57037 | Irene | 925 | 9 | $72k | $161k | 7% |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).
Which ZIP codes cross the county line?
7 ZIP codes of Clay County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Clay | Elsewhere |
|---|---|---|
| 57004 | 26% | Lincoln County 47%; Union County 27% |
| 57014 | 33% | Turner County 43%; Lincoln County 24% |
| 57037 | 7% | Yankton County 82%; Turner County 11% |
| 57031 | 23% | Yankton County 77% |
| 57010 | 69% | Union County 31% |
| 57073 | 96% | Turner County 4% |
| 57072 | 28% | Yankton County 72% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
Which first three digits do Clay County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Clay County starts with 570.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 570 | Sioux Falls, SD (SCF 570) | 8 | 69 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.