ZIP code
57365
in Oacoma, South DakotaPopulation 599
57.16/ 100
Ranked #7,120 of 32,066 US ZIPs (top 22%)
Ranked #68 of 360 South Dakota ZIPs (top 19%)
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.
Radon
3.7 pCi/L
in the top 3.4% nationally
Lower is healthier
ST66thUS97thDefinition & 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
153.4 mi
in the top 1.8% nationally
Higher is healthier
ST88thUS98thDefinition & 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 ›Short sleep
26.7%
in the bottom 1.3% nationally
Lower is healthier
ST3rdUS1stDefinition & source ›
The estimated share of adults who usually sleep less than seven hours in a 24-hour period.
Full methodology ›Walkability
1.1 intersections/sq mi
in the bottom 3.0% nationally
Higher is healthier
ST24thUS3rdDefinition & source ›
The number of street intersections per square mile — a standard street-connectivity measure; denser networks correlate with more walkable neighborhoods.
Full methodology ›Fiber broadband
98.9%
in the top 5.1% nationally
Higher is healthier
ST65thUS95thDefinition & source ›
The share of homes where fiber-optic internet service is available.
Full methodology ›Fine-particle (PM2.5) exceedance
1.1%
in the top 8.6% nationally
Lower is healthier
ST72ndUS91stDefinition & 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 ›Natural-disaster risk
in the bottom 8.7% nationally
Lower is healthier
ST6thUS9thDefinition & source ›
This area’s national rank on its single highest non-flood natural hazard — such as wildfire, tornado, or earthquake — in FEMA’s modeled National Risk Index; flooding is shown separately.
Full methodology ›Mammography
80%
in the top 11.1% nationally
Higher is healthier
ST91stUS89thDefinition & source ›
The estimated share of women aged 50–74 who had a mammogram within the past two years.
Full methodology ›Dry extreme heat
32.8 days/year
in the top 14.0% nationally
Lower is healthier
ST99thUS86thDefinition & source ›
The average number of days per year with a modeled daily high of at least 95 °F.
Full methodology ›PFAS in drinking water
48.1%
in the top 14.8% nationally
Lower is healthier
ST97thUS85thDefinition & source ›
The modeled probability that PFAS “forever chemicals” would be detected in untreated groundwater in this area, the source private wells draw on.
A modeled likelihood for untreated groundwater, the source drawn on by private wells, which are federally unregulated. It is not a measurement of treated water delivered by a public system, and it is not a test of any individual well.
Full methodology ›The read
By the composite health measure, Oacoma, South Dakota (ZIP 57365) ranks in the top 22% healthiest ZIPs nationally (7,120th) and the top 19% of South Dakota (68th), based on limited data; treat as directional.
The picture here is genuinely mixed, with readings on both sides: distance to a Superfund site stands in the top 1.8% nationally, and modeled short sleep lies in the bottom 1.3% nationally. Fiber broadband lands in the top 5.1% nationally, and modeled disaster risk sits in the bottom 8.7% nationally. Modeled mammography is in the top 11.1% nationally. Crowded housing settles at the national minimum, shared with about 29% of ZIPs. On the other side, modeled radon resides in the top 3.4% nationally, walkability registers in the bottom 3.0% nationally, and modeled fine-particle rests in the top 8.6% nationally. Modeled extreme heat stands in the top 14.0% nationally.
To spell things out, 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. Fine-particle is fine airborne particles about one-thirtieth the width of a hair, counted on modeled days above the EPA standard. Close by, ZIP 57371, about 20 miles away, 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
Preventive Care
healthier than 90%
13%
Risk Behavior
healthier than 82%
11%
Mental Health
healthier than 92%
8%
Disability
healthier than 69%
7%
Healthcare Access
healthier than 68%
5%
About typical
Chronic Disease Burden
healthier than 51%
21%
Holding it back
Social Need / SDOH
healthier than 35%
16%
Environmental Hazard
healthier than 23%
14%
Climate / Disaster RiskPartial
healthier than 38%
5%
Lifting this score
Preventive Care
healthier than 96%
13%
Risk Behavior
healthier than 95%
11%
Mental Health
healthier than 94%
8%
Disability
healthier than 69%
7%
Healthcare Access
healthier than 93%
5%
About typical
Social Need / SDOH
healthier than 46%
16%
Holding it back
Chronic Disease Burden
healthier than 40%
21%
Environmental Hazard
healthier than 11%
14%
Climate / Disaster RiskPartial
healthier than 14%
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
57325
South Dakotashares a border
Score 51.40
Closest healthier
57371
South Dakotaabout 20 mi away
Score 58.57
Similar health profile
57001
South Dakota99% similar profile
Score 55.19
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 | 30.5% | 26.9–34.7 |
| High blood pressure among adults | 37.5% | 33.1–42.7 |
| Cancer (non-skin) or melanoma among adults | 11.6% | 10.4–12.8 |
| Current asthma among adults | 9.9% | 8.7–11.3 |
| Coronary heart disease among adults | 7.7% | 6.7–8.8 |
| Chronic obstructive pulmonary disease among adults | 7.1% | 5.9–8.5 |
| Depression among adults | 19.1% | 16.1–22.8 |
| Diagnosed diabetes among adults | 12.8% | 10.9–15.0 |
| High cholesterol among adults who have ever been screened | 38.2% | 33.5–43.4 |
| Obesity among adults | 35.5% | 27.4–44.6 |
| Stroke among adults | 3.9% | 3.4–4.4 |
| All teeth lost among adults aged >=65 years | 10.0% | 8.0–12.3 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 6.7% | 5.2–8.6 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 80.1% | 76.9–83.2 |
| Visits to doctor for routine checkup within the past year among adults | 79.4% | 75.8–82.9 |
| Cholesterol screening among adults | 89.2% | 87.5–90.9 |
| Colorectal cancer screening among adults aged 45–75 years | 69.1% | 64.0–73.8 |
| Visited dentist or dental clinic in the past year among adults | 75.2% | 72.1–78.1 |
| Mammography use among women aged 50-74 years | 80.0% | 73.1–85.9 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 17.2% | 14.1–20.9 |
| Current cigarette smoking among adults | 14.1% | 11.3–17.2 |
| No leisure-time physical activity among adults | 23.0% | 18.4–28.2 |
| Short sleep duration among adults | 26.7% | 21.1–33.0 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 16.4% | 13.6–19.7 |
| Frequent mental distress among adults | 13.2% | 11.4–15.2 |
| Frequent physical distress among adults | 12.6% | 10.8–14.8 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 11.5% | 9.8–13.5 |
| Any disability among adults | 29.3% | 24.7–34.6 |
| Hearing disability among adults | 9.0% | 7.9–10.4 |
| Independent living disability among adults | 6.9% | 5.8–8.1 |
| Mobility disability among adults | 13.7% | 11.3–16.4 |
| Self-care disability among adults | 3.4% | 2.9–4.0 |
| Vision disability among adults | 4.3% | 3.7–4.9 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | SD median (p10–p90) |
|---|---|---|---|
| Poverty rate | 7.0% | 10.6% (3.1–25.8%) n=32,364 | 8.8% (1.1–33.5%) n=364 |
| Uninsured 18–64 | 19.4% | 9.0% (1.5–24.3%) n=32,286 | 9.6% (0.0–33.2%) n=365 |
| No HS diploma (25+) | 6.0% | 7.9% (1.8–20.7%) n=32,505 | 6.0% (0.8–15.3%) n=366 |
| Bachelor's or higher (25+) | 23.6% | 23.3% (9.2–53.6%) n=32,505 | 24.6% (10.3–40.7%) n=366 |
| Unemployment rate (16+) | 5.8% | 3.9% (0.0–9.8%) n=32,274 | 1.1% (0.0–8.0%) n=365 |
| Households without a vehicle | 0.8% | 3.9% (0.0–12.5%) n=32,322 | 1.9% (0.0–9.6%) n=364 |
| Broadband subscription | 89.8% | 89.3% (75.1–97.1%) n=32,322 | 87.9% (73.7–96.3%) n=364 |
| Housing cost burden (≥30% income) | 19.3% | 23.7% (10.6–40.0%) n=32,322 | 17.5% (5.2–30.6%) n=364 |
| Homeownership rate | 79.5% | 78.7% (51.7–94.0%) n=32,322 | 79.9% (57.2–94.8%) n=364 |
| Crowded housing (>1 per room) | 0.0% | 1.3% (0.0–6.3%) n=32,322 | 0.6% (0.0–10.2%) n=364 |
| Foreign-born population | 1.7% | 2.6% (0.0–18.6%) n=32,553 | 0.6% (0.0–5.3%) n=367 |
| Single-parent households | 56.6% | 53.6% (37.3–74.1%) n=32,087 | 56.7% (32.7–81.4%) n=362 |
| Population 65+ | 26.4% | 19.4% (10.8–33.6%) n=32,553 | 20.3% (8.4–33.0%) n=367 |
| Median age | 41.2 yr | 42.2 yr (33.0–56.3) n=32,292 | 41.5 yr (27.6–56.7) n=365 |
| Median household income | $76,000 | $72,070 ($46,039–$118,707) n=30,318 | $74,865 ($51,211–$102,582) n=336 |
| Median home value | $218,400 | $222,200 ($100,300–$579,820) n=30,049 | $177,400 ($79,000–$321,400) n=311 |
| Median gross rent | $883 | $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 | 89.9 yr ± 3.45 | 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 3.45 years of 89.9, 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