Woonsocket South Dakota ZIP Codes
Woonsocket holds a single ZIP code.
Every ZIP code in Woonsocket
| ZIP code | County |
|---|---|
| 57385 | Sanborn County |
We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Woonsocket codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Woonsocket. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.
How these codes cluster
Every Woonsocket ZIP code begins 573. Those first three digits identify the sectional center facility that processes mail for this part of South Dakota. Statewide that range covers 62 ZIP codes, so Woonsocket accounts for 2% of it.
Every South Dakota ZIP prefix and the region it covers →
Area codes covering Woonsocket
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The code below serves the same ground Woonsocket occupies.
Woonsocket South Dakota area codes in full →
Where Woonsocket's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Woonsocket
| City | Distance | ZIP codes |
|---|---|---|
| Lane South Dakota ZIP codes | 7.7 mi | 1 ZIP code |
| Alpena South Dakota ZIP codes | 10 mi | 1 ZIP code |
| Letcher South Dakota ZIP codes | 12 mi | 1 ZIP code |
| Wessington Springs South Dakota ZIP codes | 15 mi | 1 ZIP code |
| Artesian South Dakota ZIP codes | 18 mi | 1 ZIP code |
| Virgil South Dakota ZIP codes | 18 mi | 1 ZIP code |
| Huron South Dakota ZIP codes | 22 mi | 2 ZIP codes |
| Mount Vernon South Dakota ZIP codes | 24 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.