ZIP Code 57234

57234 is one of South Dakota's ZIP codes, delivering to addresses in Estelline, Hamlin County.

City: Estelline
County: Hamlin County
State: South Dakota
Prefix: 572xx

Where this code sits

57234 is part of the 572xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Estelline.

Estelline South Dakota ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 57234 delivers to without sharing its boundary.

605 Area code 605

ZIP codes nearest 57234

The ZIP codes whose reference points sit closest to 57234.
ZIP code	Distance	Delivers to
ZIP code 57268	9.3 mi	Toronto, SD
ZIP code 57220	9.4 mi	Bruce, SD
ZIP code 57223	11 mi	Castlewood, SD
ZIP code 57218	13 mi	Brandt, SD
ZIP code 57226	15 mi	Clear Lake, SD
ZIP code 57248	15 mi	Lake Norden, SD
ZIP code 57007	17 mi	Brookings, SD
ZIP code 57241	17 mi	Hayti, 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 57234, plotted from its record coordinates.

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

Scope ZIP code 57234. 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.