Isabel is a town in Corson County, South Dakota, home to about 214 people across 0.9 square miles. Its ZIP code is 57633.
Mostly Isabel
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| Nearest major airport | Eppley Airfield (OMA)397 miles away |
|---|---|
| Closer regional airport | Pierre Regional Airport (PIR)90 miles away |
| Nearest city of 250,000+ | Omaha, NE393 miles away |
| Nearest city of 1 million+ | Chicago, IL730 miles away |
Straight-line distances from the center of Isabel; 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.
Isabel had 145 residents in the 2020 census, down 39% since 2000.
It’s the 228th largest of 440 towns in South Dakota by population.
Corson County grew from 2,929 residents in 1910 to 3,902 in 2020.
Corson 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 (18 miles away).
289 jobs at 39 businesses in Corson County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
4 doctors and other health care providers list an office in Isabel.
Nearest hospitals
Providers with an office here
| Nurse practitioners and physician assistants | 3 |
|---|---|
| Chiropractors | 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.