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Hermosa South Dakota ZIP Codes

Hermosa holds a single ZIP code.

Every ZIP code in Hermosa

The complete list of Hermosa, South Dakota ZIP codes with the county each falls in.
ZIP codeCounty
57744Custer County

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Hermosa codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Hermosa. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.

How these codes cluster

Every Hermosa ZIP code begins 577. Those first three digits identify the sectional center facility that processes mail for this part of South Dakota. Statewide that range covers 58 ZIP codes, so Hermosa accounts for 2% of it.

Every South Dakota ZIP prefix and the region it covers →

Area codes covering Hermosa

ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The code below serves the same ground Hermosa occupies.

Hermosa South Dakota area codes in full →

Where Hermosa's ZIP codes sit

Each point is one Hermosa ZIP code, plotted from its record coordinates.
  • Reference points and footprint
  • Not an official NANPA boundary
  • Not a USPS delivery area

Cities near Hermosa

The closest places to Hermosa with their own ZIP code list, nearest first.
CityDistanceZIP codes
Fairburn South Dakota ZIP codes11 mi1 ZIP code
Keystone South Dakota ZIP codes12 mi1 ZIP code
Rapid City South Dakota ZIP codes16 mi4 ZIP codes
Box Elder South Dakota ZIP codes20 mi1 ZIP code
Hill City South Dakota ZIP codes20 mi1 ZIP code
Custer South Dakota ZIP codes21 mi1 ZIP code
Buffalo Gap South Dakota ZIP codes25 mi1 ZIP code
New Underwood South Dakota ZIP codes25 mi1 ZIP code

Straight-line distance between place reference points, not driving distance.