Allison’s story
Allison in pictures
1 places on the National Register of Historic Places.
Explore the history →AllisonSD
A town of 14. Nearly 57.1% of it is conserved land.
Population
14
residents
Median age
15.5
years
What makes Allison stand out
The thing Allison does most differently from other towns.
Small town
14 people, and everyone knows the way
In a town this size, neighbors are the best guide. Ask them anything.
Nearby towns
FranklynPalmyraFrederickCarlAllison
Allison’s report card
Now in Allison
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The data
Ordered by what stands out in Allison. Another town gets a different order.
Outdoors
Nearly a third of Allison is conserved land
7.1 miles of trails across 0 parks and preserves.
57.1%conserved
57.1%
conserved · 13,033 of 22,816 acres
7.1 mi
of trails · 0.2 per sq mi
Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-USParks & trails →
Climate
Four seasons, pleasant summers
Allison has cold, snowy winters and pleasant summers, with very little rain. A typical July afternoon reaches 83°, a January night drops to 3°, and about 39 inches of snow falls in a normal winter.
39″snow a winter
Typical low → high °F
Winter6–24°
Spring31–54°
Summer57–80°
Fall33–56°
Oct 2
typical first frost
May 4
typical last frost
+1.0°
vs. the 20th-century average
NOAA U.S. Climate Normals, 1991–2020Full climate →
Natural hazards
Low risk, with inland flooding at the top
Expected storm and flood damage is higher than in 37% of U.S. communities.
37risk score of 100
FEMA risk score
Inland floodingCold wavesHail
FEMA National Risk Index · OpenFEMANatural hazards →
Health
How healthy Allison is
Allison beats the South Dakota average on 6 of 26 CDC measures and trails it on 2.
26 measures vs. South Dakota
6 better18 too close to call2 worse
| What stands out | Allison | SD |
|---|---|---|
| Fewer older adults who have lost all their teeth | 8.3% | 12.7% |
| Fewer adults in frequent mental distress | 13.1% | 15.3% |
| More adults who have had cancer | 11.4% | 9.2% |
Avera St. Lukes
25.5 mi away · emergency room
3 of 3
care shortages: primary care, dental, mental health
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSAFull health report →
About Allison
Township in Brown County, South Dakota
Allison Township is a township in Brown County, South Dakota, United States. According to the 2010 census, there were 20 people residing in the township of Allison. The population density was 0.22 inhabitants/km².
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
- Population
- 21