ZIP Code 57744

57744 is one of South Dakota's ZIP codes, delivering to addresses in Hermosa, Custer County.

City: Hermosa
County: Custer County
State: South Dakota
Prefix: 577xx

Where this code sits

57744 is part of the 577xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Hermosa.

Hermosa South Dakota ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 57744 delivers to without sharing its boundary.

605 Area code 605

ZIP codes nearest 57744

The ZIP codes whose reference points sit closest to 57744.
ZIP code	Distance	Delivers to
ZIP code 57751	11 mi	Keystone, SD
ZIP code 57738	11 mi	Fairburn, SD
ZIP code 57702	15 mi	Rapid City, SD
ZIP code 57730	16 mi	Custer, SD
ZIP code 57703	16 mi	Rapid City, SD
ZIP code 57709	19 mi	Rapid City, SD
ZIP code 57745	20 mi	Hill City, SD
ZIP code 57719	22 mi	Box Elder, 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 57744, plotted from its record coordinates.

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

Scope ZIP code 57744. 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.