Whitehorse is a community in Dewey County, South Dakota, home to about 162 people across 2.7 square miles. Its ZIP codes are 57630 and 57661.
Mostly Whitehorse
Mostly Whitehorse
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| Nearest major airport | Eppley Airfield (OMA)372 miles away |
|---|---|
| Closer regional airport | Pierre Regional Airport (PIR)68 miles away |
| Nearest city of 250,000+ | Omaha, NE368 miles away |
| Nearest city of 1 million+ | Chicago, IL702 miles away |
Straight-line distances from the center of Whitehorse; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Whitehorse had 106 residents in the 2020 census, down 25% since 2000.
It’s the 252nd largest of 440 towns in South Dakota by population.
Dewey County grew from 1,145 residents in 1910 to 5,239 in 2020.
Dewey County, 1910–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 86°F in summer, and winter lows average 7°F. About 19.6 inches of rain and melted snow fall in a typical year, with about 41 inches of snow.
Source: NOAA 1991–2020 climate normals, Timber Lake, SD weather station (14 miles away).
778 jobs at 103 businesses in Dewey County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
1 doctors and other health care providers list an office in Whitehorse’s ZIP codes.
Nearest hospitals
Providers with an office here
| Nurse practitioners and physician assistants | 1 |
|---|
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
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Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.