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South Dakota›Marshall County

Clear LakeSD

41 people live in this town in South Dakota.

Is Clear Lake a good place to live?

51% of residents live below the poverty line in Clear Lake, above both South Dakota’s towns (9.5%) and U.S. towns (9.6%). No town among the 36 in South Dakota we compare has a higher age of the median resident than Clear Lake. Clear Lake has fewer than 1,000 residents, too few for fair grades; the figures below are still real.

Small town

41 people, and everyone knows the way

In a town this size, neighbors are the best guide. Ask them anything.

Nearby towns

The data

Ordered by what stands out in Clear Lake.

Work & commute

Clear Lake has 0.0 jobs for every working resident, so most commute out

0%work in town

The top destinations are Britton (21%), Miller Township (11%) and Sisseton (7%). The median commute is under 20 miles.

Where working residents work

In Clear Lake0%
Britton21%
Miller Township11%
Sisseton7%
Gwinner5%
20 mi
median commute distance
2
jobs based in Clear Lake
A commuter town
jobs vs. working residents

Census LEHD 2023 · ACS

Natural hazards

Clear Lake stands out in South Dakota and nationally, with the FEMA risk score lower than most

22risk score of 100

Expected losses in Clear Lake break down as 37% from cold waves and 23% from inland flooding.

FEMA risk score
22Low riskLowerHigher
Cold wavesInland floodingHail

FEMA National Risk Index · OpenFEMA

Climate

Compared with most of South Dakota and the rest of the country, a typical July afternoon in Clear Lake is cooler

48″snow a winter

Winters in Clear Lake are cold, snowy and summers pleasant. July afternoons reach 80°, January nights drop to 3° and about 48 inches of snow falls in a winter.

Typical low → high °F

Winter6–22°
Spring31–51°
Summer57–78°
Fall35–54°
Oct 9
typical first frost
May 2
typical last frost
+1.1°
vs. the 20th-century average

NOAA U.S. Climate Normals, 1991–2020

Health

How healthy Clear Lake is

Only 2 of the 36 South Dakota towns we compare have a higher share of adults who have high blood pressure than Clear Lake. This South Dakota town beats the South Dakota average on 3 of 26 CDC measures and trails it on 3. In Clear Lake, 19% of adults have been diagnosed with depression.

Clear LakeSouth Dakota townsU.S. towns
Depression (CDC PLACES)19%22%23%
Diabetes (CDC PLACES)14%10%12%
Sleep under 7 hours (CDC PLACES)29%30%36%
High blood pressure (CDC PLACES)37%31%35%
26 measures vs. South Dakota
3 better20 too close to call3 worse
What stands outClear LakeSD
Fewer older adults who have lost all their teeth7.3%12.7%
More adults screened for colon cancer75.6%65.5%
More adults with heart disease8.3%6.8%
Coteau Des Prairies Health Care System
15.3 mi away · emergency room
3 of 3
care shortages: primary care, dental, mental health

CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA

Keep exploring

Everything we know about Clear Lake

13pages on Clear Lake
Getting set up

Moving to Clear Lake: who provides what

Clear Lake is unincorporated, so Marshall County and regional agencies provide most services.

PowerNorthWestern Energy13.3¢/kWh · EIA 2025HIFLD · EIA
WaterBDM Rural Water SystemNo health-based violations in 5 years · EPAEPA
Internet2 providers100% of addresses get 100/20 MbpsFCC
Trash & county servicesMarshall CountyMarshall County provides services here
SchoolsSisseton School District 54-2Britton-Hecla School District 45-42 districts serve Clear Lake; which school depends on your address and gradeNCES
Register to voteIn personSouth Dakota has no online registration; you can register in person until 15 days before Election Day or by mail (received 15 days before).vote.gov
Who runs elections hereMarshall County AuditorMarshall County; contacts on the Handbook page.FVAP, Jul 2023
ZIP codes57247, 5726257247 75% · 57262 25%Census 2020

EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Aug 3, 2026.

A commuter town

100% of working residents leave Clear Lake for work

Where Clear Lake’s working residents go each day. Line width shows the share.

21% → Britton Britton 21% 11% → Miller Township Miller Township 11% 7% → Sisseton Sisseton 7% 5% → Gwinner Gwinner 5% 5% → Langford Langford 5% 5% → Huron Huron 5% Clear Lake · 0% stay
2jobs based in Clear Lake
0%of working residents work in town
20 mimedian commute distance

Census LEHD 2023

After high school

Colleges nearby

None within 15 miles of Clear Lake; the nearest are

About Clear Lake

Census-designated place in South Dakota, United States

Clear Lake is an unincorporated community and census-designated place (CDP) in Marshall County, South Dakota, United States, surrounding a natural lake of the same name. Within the Lake Traverse Indian Reservation, it was first listed as a CDP prior to the 2020 census. The population was 170 at the 2020 census. It is in the southeast part of the county, bordered to the northeast by South Dakota Highway 10, which leads northwest 4 miles (6 km) to Lake City and southeast 16 miles (26 km) to Sisseton.

From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)

Elevation
1,837 ft

Questions about Clear Lake

Short answers, built from the data on this page.

Is Clear Lake, SD a good place to live?

Clear Lake has fewer than 1,000 residents, too few for fair grades; the figures below are still real. 41 people live in this town in South Dakota.

Clear Lake is in here

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