Sinai South Dakota ZIP Codes
Sinai holds a single ZIP code.
Every ZIP code in Sinai
| ZIP code | County |
|---|---|
| 57061 | Brookings 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Sinai codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Sinai. 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 Sinai 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 Sinai accounts for 1% of it.
Every South Dakota ZIP prefix and the region it covers →
Area codes covering Sinai
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 Sinai occupies.
Sinai South Dakota area codes in full →
Where Sinai's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Sinai
| City | Distance | ZIP codes |
|---|---|---|
| Nunda South Dakota ZIP codes | 6.0 mi | 1 ZIP code |
| Volga South Dakota ZIP codes | 8.1 mi | 1 ZIP code |
| Arlington South Dakota ZIP codes | 9.3 mi | 1 ZIP code |
| Ramona South Dakota ZIP codes | 12 mi | 1 ZIP code |
| Oldham South Dakota ZIP codes | 13 mi | 1 ZIP code |
| Brookings South Dakota ZIP codes | 13 mi | 2 ZIP codes |
| Bruce South Dakota ZIP codes | 15 mi | 1 ZIP code |
| Madison South Dakota ZIP codes | 17 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.