Arlington is a city in Kingsbury County, South Dakota, home to about 920 people across 1.7 square miles. Its ZIP code is 57212.
Mostly Arlington; also Lake Poinsett and Spring Lake Colony
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| Nearest major airport | Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field (MSP)192 miles away |
|---|---|
| Closer regional airport | Watertown Regional Airport (ATY)38 miles away |
| Nearest city of 250,000+ | Minneapolis, MN191 miles away |
| Nearest city of 1 million+ | Chicago, IL504 miles away |
Straight-line distances from the center of Arlington; 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.
Arlington had 915 residents in the 2020 census, down 8% since 2000.
It’s the 89th largest of 440 towns in South Dakota by population.
Kingsbury County grew from 9,866 residents in 1900 to 5,187 in 2020.
Kingsbury County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 83°F in summer, and winter lows average 5°F. About 26.5 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Arlington 1 W, SD weather station (5 miles away).
1,254 jobs at 188 businesses in Kingsbury County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
6 doctors and other health care providers list an office in Arlington.
Nearest hospitals
Providers with an office here
| Nurse practitioners and physician assistants | 3 |
|---|---|
| Physical and occupational therapists | 1 |
| Chiropractors | 2 |
| Pharmacies | 2 |
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.
Public schools here are run by Arlington School District 38-1, Oldham-Ramona-Rutland School District 39-6. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Arlington Preschool - 04Arlington | Pre-K | 17 | Public | 3.4 mi |
| Arlington Elementary - 02Arlington | K–6 | 152 | Public | 3.4 mi |
| Spring Lake Colony ElementaryArlington | K–8 | 18 | Public | 10.5 mi |
| Arlington Jr. High - 03Arlington | 7–8 | 47 | Public | 3.4 mi |
| Arlington High School - 01Arlington | 9–12 | 76 | Public | 3.4 mi |
| Spring Lake Colony High SchoolArlington | 9–12 | 12 | Public | 10.5 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 Lake Poinsett, Spring Lake Colony and Hetland.
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.