ZIP Code 57385

57385 is one of South Dakota's ZIP codes, delivering to addresses in Woonsocket, Sanborn County.

City: Woonsocket
County: Sanborn County
State: South Dakota
Prefix: 573xx

Where this code sits

57385 is part of the 573xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Woonsocket.

Woonsocket South Dakota ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 57385 delivers to without sharing its boundary.

605 Area code 605

ZIP codes nearest 57385

The ZIP codes whose reference points sit closest to 57385.
ZIP code	Distance	Delivers to
ZIP code 57358	9.1 mi	Lane, SD
ZIP code 57312	11 mi	Alpena, SD
ZIP code 57314	12 mi	Artesian, SD
ZIP code 57359	12 mi	Letcher, SD
ZIP code 57379	19 mi	Virgil, SD
ZIP code 57350	21 mi	Huron, SD
ZIP code 57399	21 mi	Huron, SD
ZIP code 57382	22 mi	Wessington Springs, SD

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 57385, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 57385. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.