Union’s story
Union in pictures
1 places on the National Register of Historic Places.
Explore the history →UnionSD
A town of 66.
Population
66
residents
Median home value
$300K
Census ACS
Household income
$191K
median
Median age
41.5
years
Small town
66 people, and everyone knows the way
In a town this size, neighbors are the best guide. Ask them anything.
Nearby towns
CapitolaRichlandMilfordAntelopeUnion
Union’s report card
Now in Union
Be the first to start the conversation.
Start a conversation
Upcoming events
Nothing on the calendar.
The data
Ordered by what stands out in Union. Another town gets a different order.
Natural hazards
Low risk, with inland flooding at the top
Expected storm and flood damage is higher than in 29% of U.S. communities.
29risk score of 100
FEMA risk score
Inland floodingCold wavesHail
FEMA National Risk Index · OpenFEMANatural hazards →
Climate
Snowy winters, pleasant summers
Union has cold, snowy winters and warm summers. A typical July afternoon reaches 84°, a January night drops to 4°, and about 44 inches of snow falls in a normal 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
NOAA U.S. Climate Normals, 1991–2020Full climate →
Health
How healthy Union is
Union beats the South Dakota average on 3 of 26 CDC measures and trails it on 1.
26 measures vs. South Dakota
3 better22 too close to call1 worse
| What stands out | Union | SD |
|---|---|---|
| Fewer older adults who have lost all their teeth | 9.8% | 12.7% |
| More adults screened for colon cancer | 70.8% | 65.5% |
| More adults who have had cancer | 10.3% | 9.2% |
Huron Regional Medical Center
23.3 mi away · emergency room
2 of 3
care shortages: primary care, mental health
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSAFull health report →
Outdoors
3.2% of Union is conserved land
18 miles of trails across 0 parks and preserves.
3.2%conserved
3.2%
conserved · 742 of 22,899 acres
18 mi
of trails · 0.5 per sq mi
Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-USParks & trails →