Letcher South Dakota ZIP Codes
Letcher holds a single ZIP code.
Every ZIP code in Letcher
| ZIP code | County |
|---|---|
| 57359 | Sanborn 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Letcher codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Letcher. 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 Letcher ZIP code begins 573. Those first three digits identify the sectional center facility that processes mail for this part of South Dakota. Statewide that range covers 62 ZIP codes, so Letcher accounts for 2% of it.
Every South Dakota ZIP prefix and the region it covers →
Area codes covering Letcher
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 Letcher occupies.
Letcher South Dakota area codes in full →
Where Letcher's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Letcher
| City | Distance | ZIP codes |
|---|---|---|
| Woonsocket South Dakota ZIP codes | 12 mi | 1 ZIP code |
| Mitchell South Dakota ZIP codes | 13 mi | 1 ZIP code |
| Artesian South Dakota ZIP codes | 13 mi | 1 ZIP code |
| Mount Vernon South Dakota ZIP codes | 14 mi | 1 ZIP code |
| Lane South Dakota ZIP codes | 18 mi | 1 ZIP code |
| Fulton South Dakota ZIP codes | 20 mi | 1 ZIP code |
| Plankinton South Dakota ZIP codes | 21 mi | 1 ZIP code |
| Alpena South Dakota ZIP codes | 23 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.