ZIP Code 57648

57648 is one of South Dakota's ZIP codes, delivering to addresses in Pollock, Campbell County.

City: Pollock
County: Campbell County
State: South Dakota
Prefix: 576xx

Where this code sits

57648 is part of the 576xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Pollock.

Pollock South Dakota ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 57648 delivers to without sharing its boundary.

605 Area code 605

ZIP codes nearest 57648

The ZIP codes whose reference points sit closest to 57648.
ZIP code	Distance	Delivers to
ZIP code 57632	12 mi	Herreid, SD
ZIP code 58573	15 mi	Strasburg, ND
ZIP code 57658	18 mi	Wakpala, SD
ZIP code 57646	19 mi	Mound City, SD
ZIP code 58542	19 mi	Hague, ND
ZIP code 58552	21 mi	Linton, ND
ZIP code 58538	22 mi	Fort Yates, ND
ZIP code 57631	25 mi	Glenham, 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 57648, plotted from its record coordinates.

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

Scope ZIP code 57648. 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.