Andover is a town in Day County, South Dakota, home to about 31 people across 0.3 square miles. It has no ZIP code of its own: it’s part of 57422.
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| Nearest major airport | Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field (MSP)232 miles away |
|---|---|
| Closer regional airport | Aberdeen Regional Airport (ABR)25 miles away |
| Nearest city of 250,000+ | Minneapolis, MN228 miles away |
| Nearest city of 1 million+ | Chicago, IL568 miles away |
Straight-line distances from the center of Andover; 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.
Andover had 66 residents in the 2020 census, down 33% since 2000.
It’s the 395th largest of 440 towns in South Dakota by population.
Day County grew from 12,254 residents in 1900 to 5,449 in 2020.
Day County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 82°F in summer, and winter lows average 5°F. About 24 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Andover #2, SD weather station (about a mile away).
1,372 jobs at 226 businesses in Day 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.
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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.