Interior South Dakota ZIP Codes
Interior holds a single ZIP code.
Every ZIP code in Interior
| ZIP code | County |
|---|---|
| 57750 | Jackson 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Interior codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Interior. 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 Interior ZIP code begins 577. Those first three digits identify the sectional center facility that processes mail for this part of South Dakota. Statewide that range covers 58 ZIP codes, so Interior accounts for 2% of it.
Every South Dakota ZIP prefix and the region it covers →
Area codes covering Interior
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 Interior occupies.
Interior South Dakota area codes in full →
Where Interior's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Interior
| City | Distance | ZIP codes |
|---|---|---|
| Quinn South Dakota ZIP codes | 19 mi | 1 ZIP code |
| Wall South Dakota ZIP codes | 23 mi | 1 ZIP code |
| Kadoka South Dakota ZIP codes | 25 mi | 1 ZIP code |
| Philip South Dakota ZIP codes | 27 mi | 1 ZIP code |
| Wasta South Dakota ZIP codes | 33 mi | 1 ZIP code |
| Belvidere South Dakota ZIP codes | 36 mi | 1 ZIP code |
| Martin South Dakota ZIP codes | 40 mi | 1 ZIP code |
| Batesland South Dakota ZIP codes | 42 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.