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South Dakota›Tripp County
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HamillSD

A town in South Dakota.

Land area
1 sq mi

Is Hamill a good place to live?

Only one of the 36 South Dakota towns we compare has a higher peak summer temperature than Hamill. We don’t grade Hamill yet; the figures below are still real.

Getting set up

Moving to Hamill: who provides what

Hamill is unincorporated, so Tripp County and regional agencies provide most services.

PowerRosebud Electric Coop11.9¢/kWh · EIA 2025HIFLD · EIA
WaterTripp County Water User DistrictNo health-based violations in 5 years · EPAEPA
Internet2 providers100% of addresses get 100/20 MbpsFCC
Trash & county servicesTripp CountyTripp County provides services here
SchoolsWinner School District 59-2Which 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 hereTripp County AuditorTripp County; contacts on the Handbook page.FVAP, Sep 2017
ZIP code5753457534 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 Hamill.

Natural hazards

Hamill faces a high natural-hazard risk, led by inland flooding

For Hamill, the FEMA hazard score is 69 of 100. Expected losses in Hamill break down as 44% from inland flooding and 30% from cold waves.

69risk score of 100
FEMA risk score
69High riskLowerHigher
Inland floodingCold wavesTornadoes
Full pageHamill’s hazards pageOpen the full Hazards page
What it facesHigh riskFlood claims0 paid flood claims · No paid flood claims on recordPast disasters18 disaster declarations · Declared for the countyGet ready0.9 events a year, on average · Ready for inland flooding

FEMA National Risk Index · OpenFEMA

Climate

Snowy winters and hot summers in Hamill

Summer afternoons peak near 89° in July, and January nights bottom out around 11°; snowfall runs to about 49 inches a winter. Summers in Hamill are warm, and winters cold, snowy, with very little rain.

49″snow a winter

Typical low → high °F

Winter14–34°
Spring35–59°
Summer60–85°
Fall38–63°
Oct 9
typical first frost
May 1
typical last frost
+1.3°
vs. the 20th-century average
Full pageHamill’s climate pageOpen the full Climate page
A year of weatherJuly highs 89°, January lows 11°Rain & snow49″ of snow a winter · 22 inches of rain and snow a yearHeating & coolingMostly a heating billThen and now+1.3° vs. the 20th century · Warmer than the 20th-century average

NOAA U.S. Climate Normals, 1991–2020

Health

How healthy Hamill is

In Hamill, nearly four in five adults had a checkup this year. Against the South Dakota average, Hamill comes out ahead on 2 CDC measures out of 26, and behind on 9. The share of adults in Hamill who have high blood pressure is 39%, above both South Dakota’s towns (31%) and U.S. towns (35%). Only 3 of the 36 South Dakota towns we compare have a higher share of adults who say their health is fair or poor than Hamill.

HamillSouth Dakota townsU.S. towns
Diabetes (CDC PLACES)14%10%12%
High blood pressure (CDC PLACES)39%31%35%
Frequent physical distress (CDC PLACES)15%12%14%
Smoke cigarettes (CDC PLACES)18%14%14%
26 measures vs. South Dakota
2 better15 too close to call9 worse
What stands outHamillSD
More adults treating high blood pressure80.4%75.9%
More adults getting cholesterol checked88.2%84.8%
More adults with COPD9.1%6.7%
Winner Regional Healthcare Center - Cah
17.2 mi away · emergency room
3 of 3
care shortages: primary care, dental, mental health
Full pageHamill’s health reportOpen the full Health report
Everyday habitsFewer binge drinkersHospitals & doctors nearby17.2 miles to an ER · Winner Regional Healthcare Center - CahHow adults are doingMore adults in frequent physical distressEvery CDC estimateBetter than SD on 2 of 26

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

Keep exploring

Everything we know about Hamill

12pages on Hamill
The big questions
HealthBetter than SD on 2 of 26 CDC measuresNatural hazardsFEMA risk higher than 69% of U.S. communities · inland flooding
Out and about
PlacesLibraryTripp County Library - Grossenburg MemorialColleges
The story
HistorySettled 1910Climate89° summer highs · 49″ of snow
Day to day
NewsWeatherHandbookZIP code 57534Town SquareNeighbors
After high school

Colleges nearby

None within 15 miles of Hamill; the nearest are

Sinte Gleska UniversityUniversity or college · Public · Mission50.9 mi$4,714 in-state tuitionMitchell Technical CollegeCommunity college · Public · Mitchell84.8 mi$7,524 in-state tuition

Prices by family income, graduation and earnings →

About Hamill

CDP in South Dakota, United States

Hamill is a census-designated place (CDP) in Tripp County, South Dakota, United States. The population was 14 at the 2020 census. Hamill lies along No Moccasin Creek, a tributary of the White River. The creek is dammed near the town site to form Hamill Dam Reservoir.

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

Area
1.3 sq mi
Elevation
1,762 ft
ZIP code
57534
Area code
605

Questions about Hamill

Short answers, built from the data on this page.

Is Hamill, SD a good place to live?

We don’t grade Hamill yet; the figures below are still real. A town in South Dakota.