De Smet South Dakota ZIP Codes
De Smet holds a single ZIP code.
Every ZIP code in De Smet
| ZIP code | County |
|---|---|
| 57231 | Kingsbury 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 De Smet codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for De Smet. 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 De Smet ZIP code begins 572. Those first three digits identify the sectional center facility that processes mail for this part of South Dakota. Statewide that range covers 56 ZIP codes, so De Smet accounts for 2% of it.
Every South Dakota ZIP prefix and the region it covers →
Area codes covering De Smet
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 De Smet occupies.
De Smet South Dakota area codes in full →
Where De Smet's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near De Smet
| City | Distance | ZIP codes |
|---|---|---|
| Lake Preston South Dakota ZIP codes | 8.7 mi | 1 ZIP code |
| Erwin South Dakota ZIP codes | 8.9 mi | 1 ZIP code |
| Bryant South Dakota ZIP codes | 15 mi | 1 ZIP code |
| Iroquois South Dakota ZIP codes | 15 mi | 1 ZIP code |
| Oldham South Dakota ZIP codes | 16 mi | 1 ZIP code |
| Willow Lake South Dakota ZIP codes | 17 mi | 1 ZIP code |
| Carthage South Dakota ZIP codes | 18 mi | 1 ZIP code |
| Badger South Dakota ZIP codes | 18 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.