2004 · SDMap-doton-Eureka · Wikimedia Commons
Eureka’s story
Eureka in pictures
1 postcards, papers and photographs from public archives.
Explore the history →EurekaSD
A town of 8.
Population
8
residents
Median age
77.7
years
Small town
8 people, and everyone knows the way
In a town this size, neighbors are the best guide. Ask them anything.
Nearby towns
PlankintonWhite LakeCooperCrystal LakeEureka
Eureka’s report card
Now in Eureka
Be the first to start the conversation.
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The data
Ordered by what stands out in Eureka. Another town gets a different order.
Climate
Four seasons, pleasant summers
Eureka has cold, snowy winters and warm summers. A typical July afternoon reaches 86°, a January night drops to 9°, and about 38 inches of snow falls in a normal winter.
38″snow a winter
Typical low → high °F
Winter12–31°
Spring34–58°
Summer59–83°
Fall37–61°
Oct 5
typical first frost
May 3
typical last frost
+1.4°
vs. the 20th-century average
NOAA U.S. Climate Normals, 1991–2020Full climate →
Health
How healthy Eureka is
Eureka 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 | Eureka | SD |
|---|---|---|
| Fewer older adults who have lost all their teeth | 10.2% | 12.7% |
| More adults treating high blood pressure | 79.7% | 75.9% |
| More adults with heart disease | 8.7% | 6.8% |
Platte Health Center
25 mi away · emergency room
1 of 3
care shortages: mental health
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSAFull health report →
Natural hazards
Moderate risk, with cold waves at the top
Expected storm and flood damage is higher than in 48% of U.S. communities.
48risk score of 100
FEMA risk score
Cold wavesInland floodingDrought
2
paid flood claims since 2019
FEMA National Risk Index · OpenFEMANatural hazards →
Famous people from Eureka
9 notable people were born in Eureka.
