ZIP Code 57551

57551 is one of South Dakota's ZIP codes, delivering to addresses in Martin, Bennett County.

City: Martin
County: Bennett County
State: South Dakota
Prefix: 575xx

Where this code sits

57551 is part of the 575xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Martin.

Martin South Dakota ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 57551 delivers to without sharing its boundary.

605 Area code 605

ZIP codes nearest 57551

The ZIP codes whose reference points sit closest to 57551.
ZIP code	Distance	Delivers to
ZIP code 57714	13 mi	Allen, SD
ZIP code 57574	14 mi	Tuthill, SD
ZIP code 57716	24 mi	Batesland, SD
ZIP code 57547	26 mi	Long Valley, SD
ZIP code 57577	27 mi	Wanblee, SD
ZIP code 57752	28 mi	Kyle, SD
ZIP code 57772	30 mi	Porcupine, SD
ZIP code 57794	32 mi	Wounded Knee, 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 57551, plotted from its record coordinates.

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

Scope ZIP code 57551. 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.