Clear Lake (Marshall County) is a community in Marshall County, South Dakota, home to about 41 people across 1.0 square miles. It has no ZIP code of its own: it’s part of 57247 and 57262.
Homes sold for a median of $39 per square foot across 2 ZIP codes in the three months ending August 2026, and 1 of 2 were seller’s markets.
Population4142 per sq mi
Price per sq ft$39Sold homes, 3 months to August 2026
Mostly Sisseton; part is in Clear Lake (Marshall County)
Each card is that ZIP code’s whole market, including any part outside Clear Lake (Marshall County). Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
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We’re writing up Clear Lake (Marshall County)’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 Clear Lake (Marshall County)
Distances
Nearest major airport
Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field (MSP)205 miles away
Closer regional airport
Watertown Regional Airport (ATY)54 miles away
Nearest city of 250,000+
Minneapolis, MN201 miles away
Nearest city of 1 million+
Chicago, IL548 miles away
Straight-line distances from the center of Clear Lake (Marshall County); driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Who represents Clear Lake (Marshall County)
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 380th largest of 440 towns in South Dakota by population.
Marshall County grew from 5,942 residents in 1900 to 4,306 in 2020.
Marshall 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 82°F in summer, and winter lows average 3°F. About 25.2 inches of rain and melted snow fall in a typical year, with about 48 inches of snow.
Source: NOAA 1991–2020 climate normals, Roy Lake, SD weather station (7 miles away).
Jobs in Marshall County
1,184 jobs at 140 businesses in Marshall County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
Health care
80 doctors and other health care providers list an office in Clear Lake (Marshall County)’s ZIP codes.
Nearest hospitals
Coteau Des Prairies Health Care SystemCritical access hospital · emergency room · CMS rating 4 of 5 · Sisseton11.6 miles
Marshall County Healthcare Center - CahCritical access hospital · emergency room · Britton23.2 miles
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.
Schools in Clear Lake (Marshall County)
Public schools here are run by Sisseton School District 54-2, Tiospa Zina Tribal School. Check each district’s attendance zones for a specific address.
Public schools(4)
School
Grades
Students
Type
Distance
Westside Elementary - 03Sisseton
Pre-K–4
380
Public
11.3 mi
Tiospa Zina Tribal SchoolAgency Village
K–12
546
Public
13.3 mi
Sisseton Middle School - 02Sisseton
5–8
281
Public
10.9 mi
Sisseton High School - 01Sisseton
9–12
304
Public
10.9 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.