South Dakota›Spink County

Union TownshipSD

A town of 46.

Population

2025 Census estimate · −2.1% since 2020

Is Union Township a good place to live?

4.3% of adults 25 and older hold a bachelor’s degree or more in Union Township, against 33% in South Dakota’s towns and 29% across U.S. towns. No town among the 36 in South Dakota we compare has a higher share of households owning their home than Union Township. Soper-Behymer Ranch is on the National Register of Historic Places. Union Township has fewer than 1,000 residents, too few for fair grades; the figures below are still real.

Small town

46 people, and everyone knows the way

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

Nearby towns

Capitola Township · 5 mi Richland Township · 6 mi Antelope Township · 6 mi Milford Township · 6 mi Harrison Township · 8 mi Lake Byron Township · 8 mi

Capitola TownshipRichland TownshipMilford TownshipAntelope TownshipUnion Township

Getting set up

Moving to Union Township: who provides what

Who provides power, water and the rest in Union Township, and how to reach them.

The full setup list →

PowerNorthWestern Energy13.3¢/kWh · EIA 2025HIFLD · EIA

WaterWEB WaterNo health-based violations in 5 years · EPAEPA

Internet7 providers100% of addresses get 100/20 MbpsFCC

Trash & dumpNot on file yetWe don’t have Union Township’s trash rules yet

SchoolsDoland School District 56-2Which 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 hereSpink County AuditorSpink County; contacts on the Handbook page.FVAP, Jul 2023

ZIP codes57322, 5743657322 77% · 57436 23%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 Union Township.

Natural hazards

Low risk in Union Township, with inland flooding at the top

Expected storm and flood damage is lower than in 71% of U.S. communities.

29risk score of 100

FEMA risk score

Inland floodingCold wavesHail

Full pageUnion Township’s hazards pageOpen the page

What it facesLow risk Flood claims0 paid flood claims · No paid flood claims on record Past disasters21 disaster declarations · Declared for the county Get ready3.3 events a year, on average · Ready for inland flooding

FEMA National Risk Index · OpenFEMA

Climate

In Union Township, expect snowy winters and pleasant summers

Union Township has cold, snowy winters and warm summers. July afternoons reach 84°, January nights drop to 4° and about 44 inches of snow falls in a winter.

44″snow a winter

Typical low → high °F

Winter8–27°

Spring33–56°

Summer58–82°

Fall35–58°

Oct 2

typical first frost

May 6

typical last frost

+1.2°

vs. the 20th-century average

Full pageUnion Township’s climate pageOpen the page

A year of weatherJuly highs 84°, January lows 4°Rain & snow44″ of snow a winter · 23 inches of rain and snow a year Heating & coolingMostly a heating bill Then and now+1.2° vs. the 20th century · Warmer than the 20th-century average

NOAA U.S. Climate Normals, 1991–2020

Health

How healthy Union Township is

Union Township beats the South Dakota average on 3 of 26 CDC measures and trails it on 1. 28% of adults sleep under 7 hours in Union Township, where South Dakota’s towns sit at 30% and U.S. towns at 36%. 15% of adults report frequent mental distress in Union Township.

	Union Township	South Dakota towns	U.S. towns
Sleep under 7 hours (CDC PLACES)	28%	30%	36%
Frequent mental distress (CDC PLACES)	15%	15%	17%
Binge drink (CDC PLACES)	19%	19%	16%
Depression (CDC PLACES)	21%	22%	23%