Grassland Colony is a community in Brown County, South Dakota, home to about 15 people across 0.4 square miles. It has no ZIP code of its own: it’s part of 57481.
Homes sold for a median of $162 per square foot in the three months ending August 2026.
Population1535 per sq mi
Price per sq ft$162Sold homes, 3 months to August 2026
Each card is that ZIP code’s whole market, including any part outside Grassland Colony. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
The Grassland Colony guide is on the way
We’re writing up Grassland Colony’s story and what everyday life there is like, for people thinking about moving in.
History
What it’s like to live there
Getting around
Things to do
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Around Grassland Colony
Distances
Nearest major airport
Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field (MSP)266 miles away
Closer regional airport
Aberdeen Regional Airport (ABR)17 miles away
Nearest city of 250,000+
Minneapolis, MN262 miles away
Nearest city of 1 million+
Chicago, IL604 miles away
Straight-line distances from the center of Grassland Colony; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Who represents Grassland Colony
U.S. Representative · South Dakota at-largeDusty Johnson (R)
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Population over time
It’s the 417th largest of 440 towns in South Dakota by population.
Brown County grew from 15,286 residents in 1900 to 38,301 in 2020.
Brown County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Weather by month
Average highs peak around 83°F in summer, and winter lows average 0°F. About 22.5 inches of rain and melted snow fall in a typical year, with about 38 inches of snow.
Source: NOAA 1991–2020 climate normals, Columbia 8 N, SD weather station (14 miles away).
Jobs in Brown County
17,306 jobs at 1,245 businesses in Brown County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
Health care
Nearest hospitals
Avera St. LukesGeneral hospital · emergency room · CMS rating 4 of 5 · Aberdeen15.2 miles
Sanford Medical Center AberdeenGeneral hospital · emergency room · CMS rating 4 of 5 · Aberdeen15.7 miles
Chi Oakes HospitalCritical access hospital · emergency room · Oakes40.4 miles
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances.
Schools in Grassland Colony
Public schools here are run by Leola School District 44-2. Check each district’s attendance zones for a specific address.
Public schools(2)
School
Grades
Students
Type
Distance
Grassland Colony Elementary - 06Westport
K–8
12
Public
10.1 mi
Long Lake Colony Elementary - 05Wetonka
K–8
30
Public
12.4 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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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.