Frankfort is a city in Spink County, South Dakota, home to about 128 people across 0.8 square miles. Its ZIP code is 57440.
Mostly Frankfort; also Glendale Colony and Spink Colony
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| Nearest major airport | Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field (MSP)248 miles away |
|---|---|
| Closer regional airport | Aberdeen Regional Airport (ABR)45 miles away |
| Nearest city of 250,000+ | Minneapolis, MN246 miles away |
| Nearest city of 1 million+ | Chicago, IL571 miles away |
Straight-line distances from the center of Frankfort; 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.
Frankfort had 134 residents in the 2020 census, down 19% since 2000.
It’s the 277th largest of 440 towns in South Dakota by population.
Spink County grew from 9,487 residents in 1900 to 6,361 in 2020.
Spink County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 84°F in summer, and winter lows average 3°F. About 22.9 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Redfield, SD weather station (12 miles away).
1,311 jobs at 197 businesses in Spink County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
Nearest hospitals
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances.
Public schools here are run by Doland School District 56-2, Hitchcock Tulare School District 56-6. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Camrose Colony Elementary - 06Frankfort | K–8 | 10 | Public | 9.4 mi |
| Glendale Colony Elementary - 04Frankfort | K–8 | 22 | Public | 0.7 mi |
| Spink Colony Elementary - 03Frankfort | K–8 | 21 | Public | 4.2 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Glendale Colony, Spink Colony and Camrose Colony.
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.