Where Seneca residents get care
CDC publishes only some of its health estimates for Seneca, not the seven a Health Grade needs; here is what we do have.
Modeled estimates for adults 18+, from ZIP code 57473. How CDC estimates town health
What stands out about health in Seneca
Heart disease, stroke and COPD run high in Seneca
1 in 8 adults have heart disease (12.4%), vs 6.8% across South Dakota. 1 in 17 adults have had a stroke (5.9%), vs 3.5% across South Dakota. COPD is also above the state: 11.2%, vs 6.7% across South Dakota. In all, Seneca runs above South Dakota on eight of 11 chronic conditions. Conditions ↓
Seneca is short on every kind of care federal data tracks
Seneca’s county is a federal shortage area for primary care, dental care and mental health care, meaning too few providers for the people who live there. Getting care ↓
More high blood pressure in Seneca, and more people treating it
47.9% of adults have high blood pressure (South Dakota 33.3%), but 85% of them take medicine for it, vs 75.9% statewide. Checkups ↓
In Seneca, insurance isn’t the gap
Only 7.8% of working-age adults are uninsured (South Dakota 8.8%), yet 21.6% say their health is fair or poor, vs 17.3% across the state. Checkups ↓
Written from the CDC, Medicare and HRSA data on this page. CDC PLACES 2025 release: modeled estimates for adults, not counts; “higher” and “lower” mean the South Dakota figure falls outside Seneca’s likely range; Seneca’s figures come from ZIP code 57473, which may reach past town lines.
Out of every 100 Seneca adults…
Seneca runs below SD on 1 of 12 conditions and above it on 9. Tap one to see it as people.
Care in and near Seneca
No hospital or community health center in Seneca itself. These are the nearest.
Hospitals: Medicare overall star ratings, 1–5. Community health centers charge on a sliding scale by income. Distances are straight-line from the center of Seneca; ≈ marks a hospital located by its town, not its street. Shortage areas: HRSA Health Professional Shortage Areas (a “population” designation covers specific residents, such as those with low incomes).
Keeping up with care
Share of Seneca adults getting routine care. The full ring is 100%; the dark tick marks South Dakota.
Everyday habits, side by side with South Dakota
Share of adults, with the South Dakota figure marked.
Walk with neighbors
The easiest exercise habit to keep is one with company.
How Seneca adults are doing
On 2 of 2 measures, Seneca does better than South Dakota.
A hello is a start.
Groups are the easiest way in: a walking group, a book club, your street.
If you or someone you know is struggling, call or text 988, the Suicide & Crisis Lifeline. It’s free, confidential and open 24/7.
Seneca and the towns around it
How health changes across the town line.
Health next door
| Town | Health | Obesity | Diabetes | Smoking | Figures from |
|---|
Same-state neighbors only, ordered by length of shared border.
Living with a disability
Shown without a better/worse judgment.
of Seneca adults live with a disability (South Dakota 30.1%). Walking or climbing stairs is the most common.
Questions about health in Seneca
Why doesn’t Seneca have a Health Grade?
Every Health Grade is built from seven of CDC’s PLACES estimates, and CDC doesn’t publish all seven for Seneca.
What hospital is closest to Seneca?
Avera Missouri River Health Center in Gettysburg, 14.1 miles in a straight line from Seneca’s center point, is the nearest general hospital with an emergency room. It has no Medicare star rating.
Neighbors talk health
Doctors taking patients, urgent care, staying active in Seneca.
Health estimates: CDC PLACES: Local Data for Better Health, 2025 release. The South Dakota figure combines its counties, weighted by adult population. Hospitals and star ratings: Medicare Care Compare (CMS). Health centers and shortage areas: HRSA. Ages: U.S. Census Bureau, American Community Survey. Town boundaries: U.S. Census Bureau. This page isn’t medical advice. In an emergency, call 911.