ZIP Code 57540

57540 is one of South Dakota's ZIP codes, delivering to addresses in Holabird, Hyde County.

City: Holabird
County: Hyde County
State: South Dakota
Prefix: 575xx

Where this code sits

57540 is part of the 575xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Holabird.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 57540 delivers to without sharing its boundary.

605 Area code 605

ZIP codes nearest 57540

The ZIP codes whose reference points sit closest to 57540.
ZIP code	Distance	Delivers to
ZIP code 57345	7.0 mi	Highmore, SD
ZIP code 57536	7.1 mi	Harrold, SD
ZIP code 57522	17 mi	Blunt, SD
ZIP code 57371	18 mi	Ree Heights, SD
ZIP code 57346	20 mi	Stephan, SD
ZIP code 57564	28 mi	Onida, SD
ZIP code 57548	29 mi	Lower Brule, SD
ZIP code 57520	32 mi	Agar, 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 57540, plotted from its record coordinates.

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

Scope ZIP code 57540. 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.