ZIP Code 57533

57533 is one of South Dakota's ZIP codes, delivering to addresses in Gregory, Gregory County.

City: Gregory
County: Gregory County
State: South Dakota
Prefix: 575xx

Where this code sits

57533 is part of the 575xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Gregory.

Gregory South Dakota ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 57533 delivers to without sharing its boundary.

605 Area code 605

ZIP codes nearest 57533

The ZIP codes whose reference points sit closest to 57533.
ZIP code	Distance	Delivers to
ZIP code 57523	4.1 mi	Burke, SD
ZIP code 57529	7.8 mi	Dallas, SD
ZIP code 57538	11 mi	Herrick, SD
ZIP code 57571	16 mi	Saint Charles, SD
ZIP code 57528	17 mi	Colome, SD
ZIP code 68753	21 mi	Mills, NE
ZIP code 57317	21 mi	Bonesteel, SD
ZIP code 68755	23 mi	Naper, NE

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 57533, plotted from its record coordinates.

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

Scope ZIP code 57533. 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.