CornwallSD
A town of 83. Nearly 32.7% of it is conserved land.
Population
83
residents
Median home value
$156K
Census ACS
Household income
$155K
median
Median age
45.3
years
What makes Cornwall stand out
The thing Cornwall does most differently from other towns.
Small town
83 people, and everyone knows the way
In a town this size, neighbors are the best guide. Ask them anything.
Nearby towns
BelmontPleasant ViewAntelopeLincolnAltoonaCornwall
Cornwall’s report card
Now in Cornwall
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The data
Ordered by what stands out in Cornwall. Another town gets a different order.
Outdoors
Nearly a third of Cornwall is conserved land
7.5 miles of trails across 0 parks and preserves.
32.7%conserved
32.7%
conserved · 7,430 of 22,753 acres
7.5 mi
of trails · 0.2 per sq mi
Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-USParks & trails →
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
Cornwall has cold, snowy winters and warm summers, with very little rain. A typical July afternoon reaches 85°, a January night drops to 5°, and about 44 inches of snow falls in a normal winter.
44″snow a winter
Typical low → high °F
Winter8–28°
Spring33–57°
Summer59–83°
Fall35–59°
Oct 2
typical first frost
May 6
typical last frost
+1.0°
vs. the 20th-century average
NOAA U.S. Climate Normals, 1991–2020Full climate →
Health
How healthy Cornwall is
Cornwall beats the South Dakota average on 3 of 26 CDC measures and trails it on 5.
26 measures vs. South Dakota
3 better18 too close to call5 worse
| What stands out | Cornwall | SD |
|---|---|---|
| Fewer older adults who have lost all their teeth | 8.7% | 12.7% |
| More adults screened for colon cancer | 69.5% | 65.5% |
| More adults who have had cancer | 10.9% | 9.2% |
Community Memorial Hospital
19.2 mi away · emergency room
2 of 3
care shortages: primary care, mental health
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSAFull health report →