ZIP Code 57239

57239 is one of South Dakota's ZIP codes, delivering to addresses in Grenville, Day County.

City: Grenville
County: Day County
State: South Dakota
Prefix: 572xx

Where this code sits

57239 is part of the 572xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Grenville.

Grenville South Dakota ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 57239 delivers to without sharing its boundary.

605 Area code 605

ZIP codes nearest 57239

The ZIP codes whose reference points sit closest to 57239.
ZIP code	Distance	Delivers to
ZIP code 57232	8.3 mi	Eden, SD
ZIP code 57273	9.1 mi	Waubay, SD
ZIP code 57261	11 mi	Roslyn, SD
ZIP code 57247	13 mi	Lake City, SD
ZIP code 57257	15 mi	Peever, SD
ZIP code 57262	16 mi	Sisseton, SD
ZIP code 57266	17 mi	Summit, SD
ZIP code 57274	17 mi	Webster, 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 57239, plotted from its record coordinates.

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

Scope ZIP code 57239. 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.