ZIP code
57266
in Summit, South DakotaPopulation 626
42.99/ 100
Ranked #24,380 of 32,066 US ZIPs (bottom 24%)
Ranked #306 of 360 South Dakota ZIPs (bottom 15.0%)
Ranks are modeled estimates — ZIPs a few hundred places apart are effectively tied.
What defines this ZIP
Metrics where this ZIP sits in the tails of the national distribution — the ones that most set it apart. Select any tile for its definition and methodology.
Distance to a community health center
55.5 mi
in the top 0.8% nationally
Lower is healthier
ST97thUS99thDefinition & source ›
The distance in miles from this ZIP’s edge to the nearest federally funded community health center, which serves patients regardless of ability to pay.
Full methodology ›Civic-institution access
1.7 per 1,000 residents
in the top 1.6% nationally
Higher is healthier
ST97thUS98thDefinition & source ›
The number of civic and social organizations inside this ZIP’s boundary, per 1,000 residents.
Counted from establishments located inside this ZIP’s boundary, so one just across the line is not counted. Where a ZIP has too few residents for the density to be reliable, no value is published rather than an unreliable one.
Full methodology ›Lithium in drinking water
97 µg/L
in the top 2.5% nationally
Lower is healthier
ST94thUS98thDefinition & source ›
The average detected level of lithium — a natural trace metal with no federal drinking-water limit yet — across the public water systems serving this ZIP, in micrograms per liter.
Measured from EPA records for the public water systems that serve this ZIP. Households on private wells — roughly 30% of the US population — are not covered by this measure, and this figure says nothing about their water.
Full methodology ›Radon
3.4 pCi/L
in the top 5.5% nationally
Lower is healthier
ST48thUS95thDefinition & source ›
The modeled typical indoor radon level for this area, in picocuries per liter — the EPA recommends fixing a home at 4 pCi/L or above.
Modeled from indoor-radon measurements. In Alaska and Hawaii, where those measurements are not published, a US Geological Survey geologic radon-potential category stands in — a coarser input, disclosed rather than hidden.
Full methodology ›Distance to a Superfund site
106.8 mi
in the top 3.3% nationally
Higher is healthier
ST57thUS97thDefinition & source ›
The distance in miles from this ZIP’s edge to the nearest Superfund site — an abandoned or uncontrolled hazardous-waste site the EPA has listed for cleanup.
Full methodology ›Energy-cost burden
5.5%
in the top 4.9% nationally
Lower is healthier
ST86thUS95thDefinition & source ›
The modeled share of household income spent on home energy bills — electricity, gas, and heating fuels.
A modeled share of household income spent on home energy. Estimates that hit the model’s 100% ceiling are suppressed rather than published, because at that point the figure reflects the model’s limit rather than a measured burden.
Full methodology ›Fiber broadband
98.5%
in the top 5.9% nationally
Higher is healthier
ST59thUS94thDefinition & source ›
The share of homes where fiber-optic internet service is available.
Full methodology ›Fine-particle (PM2.5) exceedance
1.4%
in the top 6.6% nationally
Lower is healthier
ST95thUS93rdDefinition & source ›
The share of days in the year when modeled fine-particle (PM2.5) pollution was above the EPA’s daily limit of 35 micrograms per cubic meter.
Full methodology ›Outer-floodplain exposure
5.4%
in the top 6.8% nationally
Lower is healthier
ST81stUS93rdDefinition & source ›
The share of this ZIP’s land area inside FEMA’s 0.2%-annual-chance flood band — the “500-year” zone, a lower but real 1-in-500 yearly chance.
Measured from FEMA’s mapped flood panels. Where a panel has not been mapped, no value is published for that ZIP — those ZIPs are absent from this comparison rather than counted as unexposed.
Full methodology ›Walkability
2.1 intersections/sq mi
in the bottom 8.3% nationally
Higher is healthier
ST60thUS8thDefinition & source ›
The number of street intersections per square mile — a standard street-connectivity measure; denser networks correlate with more walkable neighborhoods.
Full methodology ›The read
By the composite measure, Summit, South Dakota (ZIP 57266) sits in the bottom 24% nationally (24,380th) and the bottom 15.0% of South Dakota (306th).
What the numbers press hardest on defines much of the story here: distance to a community health center lands in the top 0.8% nationally, lithium in drinking water resides in the top 2.5% nationally, and modeled radon lies in the top 5.5% nationally. Modeled energy burden settles in the top 4.9% nationally, modeled fine-particle stands in the top 6.6% nationally, and outer-floodplain exposure is in the top 6.8% nationally. Walkability rests in the bottom 8.3% nationally. On the encouraging side, civic sits in the top 1.6% nationally, and distance to a Superfund site registers in the top 3.3% nationally. Fiber broadband lands in the top 5.9% nationally.
Compared with the ZIPs that surround it, civic runs far higher than the surrounding ZIPs on this measure. In plain language, lithium in drinking water is a natural metal that dissolves into some groundwater and has no federal drinking-water limit yet. Radon is a radioactive soil gas the EPA identifies as the top cause of lung cancer in nonsmokers. Distance to a Superfund site is an abandoned or uncontrolled hazardous-waste site the EPA has identified for cleanup. ZIP 57251, just across the boundary, ranks healthier overall.
What’s driving this score
Nine domains make up the ZipVitals Score — here is how this ZIP does on each, and how much each one counts.
Compared with the ZIP codes measured across all nine scoring domains — not with all US ZIP codes.
Lifting this score
Climate / Disaster Risk
healthier than 71%
5%
About typical
Chronic Disease Burden
healthier than 43%
21%
Mental Health
healthier than 52%
8%
Holding it back
Social Need / SDOH
healthier than 7%
16%
Environmental Hazard
healthier than 35%
14%
Preventive Care
healthier than 23%
13%
Risk Behavior
healthier than 17%
11%
Disability
healthier than 27%
7%
Healthcare Access
in the bottom 1.0%
5%
Lifting this score
Climate / Disaster Risk
healthier than 64%
5%
Holding it back
Chronic Disease Burden
healthier than 31%
21%
Social Need / SDOH
healthier than 7%
16%
Environmental Hazard
healthier than 38%
14%
Preventive Care
healthier than 11%
13%
Risk Behavior
healthier than 10%
11%
Mental Health
healthier than 11%
8%
Disability
healthier than 14%
7%
Healthcare Access
healthier than 7%
5%
“Share” is how much of this ZIP’s score the domain accounts for. Percentages are rounded; higher is healthier in every domain. How the score works, and who it compares you with ›
Nearby & similar ZIPs
Editorially selected — see how this ZIP compares to nearby and similar places.
Nearby
57251
South Dakotashares a border
Score 52.85
Closest healthier
57256
South Dakotashares a border
Score 43.36
Similar health profile
89421
Oregon95% similar profile
Score 38.01
How these were chosen: only ZIPs with a published Score appear — a nearby ZIP with too little data to score won’t. Nearby means closest by distance between ZIP boundaries, which can cross state lines. A similar health profile is a close match across the nine Score domains, not similar demographics. Distances are measured between ZIP boundaries — ZIPs that touch share a border. How distance is measured
Evidence
Every measure this page draws on, by source. Collapsed by default — the full data stays in the page for search engines either way.
Health OutcomesCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Arthritis among adults | 27.5% | 25.0–29.9 |
| High blood pressure among adults | 35.6% | 32.4–38.8 |
| Cancer (non-skin) or melanoma among adults | 8.7% | 8.0–9.5 |
| Current asthma among adults | 10.8% | 9.8–11.9 |
| Coronary heart disease among adults | 8.0% | 7.3–8.8 |
| Chronic obstructive pulmonary disease among adults | 8.9% | 7.9–10.0 |
| Depression among adults | 21.6% | 19.0–24.3 |
| Diagnosed diabetes among adults | 13.6% | 12.1–15.0 |
| High cholesterol among adults who have ever been screened | 33.8% | 30.6–36.9 |
| Obesity among adults | 42.2% | 35.9–48.2 |
| Stroke among adults | 4.2% | 3.9–4.6 |
| All teeth lost among adults aged >=65 years | 18.1% | 15.6–20.9 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 11.9% | 10.1–14.0 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 75.8% | 73.3–77.9 |
| Visits to doctor for routine checkup within the past year among adults | 74.7% | 71.3–77.6 |
| Cholesterol screening among adults | 81.8% | 79.6–83.7 |
| Colorectal cancer screening among adults aged 45–75 years | 62.5% | 58.4–66.5 |
| Visited dentist or dental clinic in the past year among adults | 60.8% | 57.9–63.8 |
| Mammography use among women aged 50-74 years | 76.5% | 70.6–81.7 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 18.2% | 15.7–20.8 |
| Current cigarette smoking among adults | 20.5% | 18.2–23.1 |
| No leisure-time physical activity among adults | 30.6% | 26.7–34.7 |
| Short sleep duration among adults | 33.5% | 28.6–38.7 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 22.1% | 19.8–24.7 |
| Frequent mental distress among adults | 17.6% | 15.9–19.4 |
| Frequent physical distress among adults | 15.1% | 13.6–16.7 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 17.0% | 15.3–18.9 |
| Any disability among adults | 34.9% | 31.4–38.6 |
| Hearing disability among adults | 9.6% | 8.7–10.5 |
| Independent living disability among adults | 10.2% | 9.2–11.3 |
| Mobility disability among adults | 15.8% | 14.2–17.6 |
| Self-care disability among adults | 4.8% | 4.4–5.3 |
| Vision disability among adults | 6.5% | 5.9–7.1 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | SD median (p10–p90) |
|---|---|---|---|
| Poverty rate | 17.9% | 10.6% (3.1–25.8%) n=32,364 | 8.8% (1.1–33.5%) n=364 |
| Uninsured 18–64 | 18.9% | 9.0% (1.5–24.3%) n=32,286 | 9.6% (0.0–33.2%) n=365 |
| No HS diploma (25+) | 5.8% | 7.9% (1.8–20.7%) n=32,505 | 6.0% (0.8–15.3%) n=366 |
| Bachelor's or higher (25+) | 14.4% | 23.3% (9.2–53.6%) n=32,505 | 24.6% (10.3–40.7%) n=366 |
| Unemployment rate (16+) | 2.9% | 3.9% (0.0–9.8%) n=32,274 | 1.1% (0.0–8.0%) n=365 |
| Households without a vehicle | 2.9% | 3.9% (0.0–12.5%) n=32,322 | 1.9% (0.0–9.6%) n=364 |
| Broadband subscription | 85.9% | 89.3% (75.1–97.1%) n=32,322 | 87.9% (73.7–96.3%) n=364 |
| Housing cost burden (≥30% income) | 17.5% | 23.7% (10.6–40.0%) n=32,322 | 17.5% (5.2–30.6%) n=364 |
| Homeownership rate | 74.3% | 78.7% (51.7–94.0%) n=32,322 | 79.9% (57.2–94.8%) n=364 |
| Crowded housing (>1 per room) | 3.4% | 1.3% (0.0–6.3%) n=32,322 | 0.6% (0.0–10.2%) n=364 |
| Foreign-born population | 1.1% | 2.6% (0.0–18.6%) n=32,553 | 0.6% (0.0–5.3%) n=367 |
| Single-parent households | 53.8% | 53.6% (37.3–74.1%) n=32,087 | 56.7% (32.7–81.4%) n=362 |
| Population 65+ | 15.7% | 19.4% (10.8–33.6%) n=32,553 | 20.3% (8.4–33.0%) n=367 |
| Median age | 33.7 yr | 42.2 yr (33.0–56.3) n=32,292 | 41.5 yr (27.6–56.7) n=365 |
| Median household income | $72,500 | $72,070 ($46,039–$118,707) n=30,318 | $74,865 ($51,211–$102,582) n=336 |
| Median home value | $162,500 | $222,200 ($100,300–$579,820) n=30,049 | $177,400 ($79,000–$321,400) n=311 |
| Median gross rent | $775 | $1,021 ($677–$1,912) n=25,670 | $763 ($544–$1,089) n=243 |
Life expectancyNCHS / RWJF USALEEP · model-based
| Measure | Value | US median (p10–p90) | SD median (p10–p90) |
|---|---|---|---|
| Life expectancy at birth | 80.1 yr ± 1.56 | 78.9 yr (74.7–82.8) n=31,308 | 80.7 yr (77.4–84.2) n=357 |
About the ± — it’s this estimate’s give-or-take (statisticians call it the standard error). The true life expectancy for this ZIP most likely falls within 1.56 years of 80.1, and it’s very unlikely to be off by more than twice that.
More ZIPs to explore ▾More ZIPs to explore ▴
How these lists were built: they draw only from ZIPs that have a published Score, so ZIPs with too little data to score are not listed. Distance-based lists use distance between ZIP boundaries with no state filter, so an out-of-state ZIP can appear. Statistically similar means a close match across the nine Score domains, not a demographic match: the measure is the cosine similarity between two ZIPs’ domain scores, taken over the domains both ZIPs have data for and only where that overlap covers at least six of the nine — and where no ZIP clears that minimum-overlap floor, that list is left out rather than filled with a weak match. How distance is measured