Timber Lake South Dakota ZIP Codes
Timber Lake holds a single ZIP code.
Every ZIP code in Timber Lake
| ZIP code | County |
|---|---|
| 57656 | Dewey 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Timber Lake codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Timber Lake. 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 Timber Lake ZIP code begins 576. Those first three digits identify the sectional center facility that processes mail for this part of South Dakota. Statewide that range covers 32 ZIP codes, so Timber Lake accounts for 3% of it.
Every South Dakota ZIP prefix and the region it covers →
Area codes covering Timber Lake
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 Timber Lake occupies.
Timber Lake South Dakota area codes in full →
Where Timber Lake's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Timber Lake
| City | Distance | ZIP codes |
|---|---|---|
| Isabel South Dakota ZIP codes | 18 mi | 1 ZIP code |
| Eagle Butte South Dakota ZIP codes | 31 mi | 1 ZIP code |
| Mobridge South Dakota ZIP codes | 32 mi | 1 ZIP code |
| Dupree South Dakota ZIP codes | 37 mi | 1 ZIP code |
| Glenham South Dakota ZIP codes | 39 mi | 1 ZIP code |
| Akaska South Dakota ZIP codes | 47 mi | 1 ZIP code |
| Morristown South Dakota ZIP codes | 47 mi | 1 ZIP code |
| Pollock South Dakota ZIP codes | 50 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.