ZIP code · Belle Fourche · South Dakota · United States

ZIP code 57717 — Belle Fourche

ZIP code 57717 serves Belle Fourche, South Dakota.

Postal code
57717
Single source Value from one source, not cross-checked.
City
Belle Fourche
County
Butte FIPS 46019
State
South Dakota
Country
United States
Coordinates
44.6723, -103.8396 — precision precise (locality)
View on OpenStreetMap
Population
8,711 (ZCTA, ACS 5-year)
Population density
6 / sq mi
Land area
1,364.4 sq mi (3,533.9 km²) (ZCTA, ACS 5-year)
Median household income
$71,326
Per-capita income
$36,718
Median age
38.3
Households
3,474
Housing units
3,832
Median home value
$215,000
Median gross rent
$937 / 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 87°F), coldest Jan (avg low 13°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F373950596979878778624837
Avg low °F131524334454605747352415
Precip in0.40.51.22.13.03.02.01.51.31.70.70.6

NOAA 1991–2020 climate normals from the nearest station: BELLE FOURCHE (0.6 mi) · NOAA NCEI

Places in ZIP 57717

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