Ashton South Dakota ZIP Codes
Ashton holds a single ZIP code.
Every ZIP code in Ashton
| ZIP code | County |
|---|---|
| 57424 | Spink 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Ashton codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Ashton. 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 Ashton ZIP code begins 574. Those first three digits identify the sectional center facility that processes mail for this part of South Dakota. Statewide that range covers 50 ZIP codes, so Ashton accounts for 2% of it.
Every South Dakota ZIP prefix and the region it covers →
Area codes covering Ashton
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 Ashton occupies.
Ashton South Dakota area codes in full →
Where Ashton's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Ashton
| City | Distance | ZIP codes |
|---|---|---|
| Redfield South Dakota ZIP codes | 8.3 mi | 1 ZIP code |
| Mellette South Dakota ZIP codes | 11 mi | 1 ZIP code |
| Northville South Dakota ZIP codes | 12 mi | 1 ZIP code |
| Frankfort South Dakota ZIP codes | 12 mi | 1 ZIP code |
| Brentford South Dakota ZIP codes | 14 mi | 1 ZIP code |
| Rockham South Dakota ZIP codes | 17 mi | 1 ZIP code |
| Tulare South Dakota ZIP codes | 18 mi | 1 ZIP code |
| Turton South Dakota ZIP codes | 20 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.