ZIP Code 57312

57312 is one of South Dakota's ZIP codes, delivering to addresses in Alpena, Jerauld County.

City: Alpena
County: Jerauld County
State: South Dakota
Prefix: 573xx

Where this code sits

57312 is part of the 573xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Alpena.

Alpena South Dakota ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 57312 delivers to without sharing its boundary.

605 Area code 605

ZIP codes nearest 57312

The ZIP codes whose reference points sit closest to 57312.
ZIP code	Distance	Delivers to
ZIP code 57358	7.1 mi	Lane, SD
ZIP code 57379	8.4 mi	Virgil, SD
ZIP code 57385	11 mi	Woonsocket, SD
ZIP code 57382	16 mi	Wessington Springs, SD
ZIP code 57350	16 mi	Huron, SD
ZIP code 57399	16 mi	Huron, SD
ZIP code 57384	16 mi	Wolsey, SD
ZIP code 57314	22 mi	Artesian, 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 57312, plotted from its record coordinates.

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

Scope ZIP code 57312. 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.