Postal reference / United States

57735Edgemont, South Dakota

ZIP code 57735 is a United States postal code for Edgemont, South Dakota. Its county association is Fall River County. The map reference point is at 43.2874, -103.811.

State / territory
South Dakota
Recorded place name
Edgemont
County association
Fall River
Estimated coordinate
43.2874, -103.811
View on OpenStreetMap
ZIP prefix
577 · 58 ZIP codes share it
Data source
GeoNames postal reference, snapshot September 26, 2026

GeoNames reference data. County associations may not include every intersecting county, place names are postal names rather than legal boundaries, and coordinates are approximate. This is not address validation.

Area

Land area
904.548 sq mi (2023 Census Gazetteer)

Figures are for the ZIP Code Tabulation Area (ZCTA) that most closely matches this ZIP code, not an exact match to USPS delivery boundaries. Source: U.S. Census Bureau, 2023 Gazetteer + 2023 ACS 5-Year Estimates, retrieved 2026-09-27. How to read this data.

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Browse the other 384 ZIP codes recorded for South Dakota, sorted by code with place and county.

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Nearby ZIP code reference points

ZIP codePlaceStateCounty associationMiles
57747Hot SpringsSDFall River19.2
57773PringleSDCuster24.7
57722Buffalo GapSDCuster28.7
57782SmithwickSDFall River29.8
57763OelrichsSDFall River31.3
57730CusterSDCuster32.0
57766OralSDFall River32.3
57738FairburnSDCuster39.6

Straight-line distance between reference points. Nearby points do not prove that ZIP areas touch.

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