Oldham South Dakota ZIP Codes
Oldham holds a single ZIP code.
Every ZIP code in Oldham
| ZIP code | County |
|---|---|
| 57051 | 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Oldham codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Oldham. 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 Oldham ZIP code begins 570. Those first three digits identify the sectional center facility that processes mail for this part of South Dakota. Statewide that range covers 69 ZIP codes, so Oldham accounts for 1% of it.
Every South Dakota ZIP prefix and the region it covers →
Area codes covering Oldham
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 Oldham occupies.
Oldham South Dakota area codes in full →
Where Oldham's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Oldham
| City | Distance | ZIP codes |
|---|---|---|
| Ramona South Dakota ZIP codes | 8.8 mi | 1 ZIP code |
| Lake Preston South Dakota ZIP codes | 9.8 mi | 1 ZIP code |
| Arlington South Dakota ZIP codes | 13 mi | 1 ZIP code |
| Sinai South Dakota ZIP codes | 13 mi | 1 ZIP code |
| Nunda South Dakota ZIP codes | 15 mi | 1 ZIP code |
| De Smet South Dakota ZIP codes | 16 mi | 1 ZIP code |
| Madison South Dakota ZIP codes | 18 mi | 1 ZIP code |
| Howard South Dakota ZIP codes | 18 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.