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Timber Lake

A city of 509 people in South Dakota
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About Timber Lake

City in South Dakota, United States
1911Established
509Population
0.4 sq miArea
2,169 ftElevation

Timber Lake (Lakota: Blečháŋ; "Tree Lake") is a city in and the county seat of Dewey County, South Dakota, United States. The population was 509 at the 2020 census.

Official town website ↗

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

Town numbers

ZIP code57656
Area code605
Living in Timber Lake

Work & commute in Timber Lake

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About one in 5 of Timber Lake’s working residents works in town. The top destinations are North Eagle Butte (24%), Eagle Butte (13%) and Isabel (6%). Half commute less than 30 miles.

North Eagle Butte
24%
Eagle Butte
13%
Isabel
6%
Mobridge
2%
Census LEHD 2023 · ACSWork & commute in Timber Lake →

Health in Timber Lake

Compared with South Dakota

1better than SD·17worse

of 26 measures CDC estimates. The other 8 are too close to call.

BetterToo close to callWorse

What stands out

Care nearby

Eagle Butte Indian Health Service HospitalEagle Butte · 31.2 mi · ER · rural critical access
Horizon Health - IsabelIsabel · 17.6 mi · sliding-scale fees
Primary careShortage · county-wide
DentalShortage · county-wide
Mental healthShortage · county-wide
CDC PLACES 2025 · modeled estimates for adults · CDC's estimate for Timber Lake · CMS · HRSAHealth in Timber Lake →

Natural hazards in Timber Lake

55
Moderate

Expected storm and flood damage is higher than in 55% of U.S. communities.

🥶 Cold waves🌊 Inland flooding
FEMA National Risk Index December 2025 · OpenFEMANatural hazards in Timber Lake →

Climate in Timber Lake

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Timber Lake has cold, snowy winters and warm summers, with very little rain. A typical July afternoon reaches 85°, a January night drops to 6°, and about 41 inches of snow falls in a normal winter.

28° / 9°Winter
56° / 31°Spring
82° / 56°Summer
58° / 34°Fall
NOAA U.S. Climate Normals, 1991–2020Climate in Timber Lake →

Schools in Timber Lake

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A

School Grade A

The public schools Timber Lake’s kids attend outperform 92% of South Dakota’s districts on state tests. Among towns with similar incomes, they rank near the top.

DistrictTimber Lake School District 20-3Schools3

School data from the U.S. Department of Education (NCES, EDFacts). The School Grade is our own summary of state test results, graded within SD. Ratings are from neighbors.

Timber Lake’s library

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Dewey County Library712 Main · part of Dewey County Library
Fine-freeE-books36 hrs a week
IMLS Public Libraries Survey · FY2024Dewey County Library →
Famous people from Timber LakeWriters, athletes, leaders and more who were born in Timber Lake.Meet them →

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Boundary source: https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/18 · 2025-01-01