ZIP code · Edgemont · South Dakota · United States

ZIP code 57735 — Edgemont

ZIP code 57735 serves Edgemont, South Dakota.

Postal code
57735
Single source Value from one source, not cross-checked.
City
Edgemont
County
Fall River FIPS 46047
State
South Dakota
Country
United States
Coordinates
43.2874, -103.8110 — precision precise (locality)
View on OpenStreetMap
Population
1,715 (ZCTA, ACS 5-year)
Population density
2 / sq mi
Land area
904.5 sq mi (2,342.8 km²) (ZCTA, ACS 5-year)
Median household income
$59,485
Per-capita income
$31,082
Median age
42.3
Households
677
Housing units
915
Median home value
$118,100
Median gross rent
$1,011 / month
Congressional district
SD At-large (119th Congress)
USDA hardiness zone
4b (-25 to -20 °F)
Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
Time zone
America/Denver (UTC−7 / UTC−6 DST)
Area code
605
Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.

Climate — monthly normals

Warmest month Jul (avg high 89°F), coldest Jan (avg low 4°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F343850596980898778624735
Avg low °F481827384855524227155
Precip in0.40.50.91.82.62.62.21.51.21.30.60.4

NOAA 1991–2020 climate normals from the nearest station: EDGEMONT (1.9 mi) · NOAA NCEI

Places in ZIP 57735

Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology

About this page

US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.

GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page