Fort Thompson is a community in Buffalo County, South Dakota, home to about 1,147 people across 10 square miles. Its ZIP code is 57339.
Mostly Fort Thompson
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| Nearest major airport | Eppley Airfield (OMA)260 miles away |
|---|---|
| Closer regional airport | Pierre Regional Airport (PIR)50 miles away |
| Nearest city of 250,000+ | Omaha, NE257 miles away |
| Nearest city of 1 million+ | Chicago, IL611 miles away |
Straight-line distances from the center of Fort Thompson; 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.
Fort Thompson had 1,224 residents in the 2020 census, down 11% since 2000.
It’s the 71st largest of 440 towns in South Dakota by population.
Buffalo County grew from 1,790 residents in 1900 to 1,948 in 2020.
Buffalo County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 88°F in summer, and winter lows average 7°F. About 20.1 inches of rain and melted snow fall in a typical year, with about 19 inches of snow.
Source: NOAA 1991–2020 climate normals, Lake Sharpe Prj, SD weather station (3 miles away).
135 jobs at 11 businesses in Buffalo County. The biggest industries by number of businesses:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
18 doctors and other health care providers list an office in Fort Thompson.
Nearest hospitals
Providers with an office here
| Primary care doctors | 4 |
|---|---|
| Dentists | 2 |
| Nurse practitioners and physician assistants | 4 |
| Mental health providers | 6 |
| Physical and occupational therapists | 1 |
| Optometrists | 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.
Parks (1 nearby)
Grocery stores (1 nearby)
Counts are within about 2.5 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
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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.