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South Dakota›McPherson County

Long LakeSD

A town of 27, settled in 1884.

Is Long Lake a good place to live?

Long Lake has fewer than 1,000 residents, too few for fair grades; the figures below are still real.

Small town

27 people, and everyone knows the way

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

Nearby towns
Getting set up

Moving to Long Lake: who provides what

Who provides power, water and the rest in Long Lake, and how to reach them.

The full setup list →
PowerMontana-Dakota Utilities13.0¢/kWh · EIA 2025HIFLD · EIA
WaterWEB WaterNo health-based violations in 5 years · EPAEPA
Internet1 providers100% of addresses get 100/20 MbpsFCC
Trash & dumpNot on file yetWe don’t have Long Lake’s trash rules yet
SchoolsLeola School District 44-2Which school depends on your addressNCES
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 hereMcPherson County AuditorMcPherson County; contacts on the Handbook page.FVAP, Jul 2023
ZIP code5745757457 100%Census 2020

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

The data

Ordered by what stands out in Long Lake.

Climate

Snowy winters and pleasant summers: that is Long Lake’s year

Only 2 of the 36 South Dakota towns we compare have a lower July high than Long Lake. July afternoons reach 81°, January nights drop to 3° and about 42 inches of snow falls in a winter.

42″snow a winter

Typical low → high °F

Winter6–24°
Spring30–52°
Summer55–79°
Fall33–55°
Sep 30
typical first frost
May 10
typical last frost
+0.8°
vs. the 20th-century average

NOAA U.S. Climate Normals, 1991–2020

Natural hazards

The biggest natural risk in Long Lake is cold waves, at a low overall level

Expected storm and flood damage is lower than in 63% of U.S. communities.

37risk score of 100
FEMA risk score
37Low riskLowerHigher
Cold wavesInland floodingHail

FEMA National Risk Index · OpenFEMA

Health

More of Long Lake’s adults have diabetes than in the typical South Dakota or U.S. town

In Long Lake, 28% of adults sleep under 7 hours, below both the South Dakota town median (30%) and the median of U.S. towns (36%). Long Lake: 43% of adults have high blood pressure. Among 36 South Dakota towns, just 3 have a higher share of adults who get no exercise outside work than Long Lake. CDC measures, 26 in all: Long Lake beats South Dakota on 3 and trails on 9.

Long LakeSouth Dakota townsU.S. towns
High blood pressure (CDC PLACES)43%31%35%
Diabetes (CDC PLACES)16%10%12%
Binge drink (CDC PLACES)15%19%16%
Frequent mental distress (CDC PLACES)13%15%17%
26 measures vs. South Dakota
3 better14 too close to call9 worse
What stands outLong LakeSD
Fewer binge drinkers15%18.8%
More adults treating high blood pressure82.5%75.9%
More adults with heart disease11.3%6.8%
Ashley Medical Center
14.9 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 Long Lake

15pages on Long Lake
After high school

Colleges nearby

None within 15 miles of Long Lake; the nearest are

About Long Lake

Town in South Dakota, United States

Long Lake (Dakota: mdé háŋska; "lake long") is a town in McPherson County, South Dakota, United States. The population was 27 at the 2020 census. The town took its name from the local Long Lake.

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

Area
0.3 sq mi
Elevation
1,952 ft
ZIP code
57457
Area code
605

Questions about Long Lake

Short answers, built from the data on this page.

Is Long Lake, SD a good place to live?

Long Lake has fewer than 1,000 residents, too few for fair grades; the figures below are still real.