ZIP code
57446
in Hecla, South DakotaPopulation 223
58.53/ 100
Ranked #5,970 of 32,066 US ZIPs (top 19%)
Ranked #43 of 360 South Dakota ZIPs (top 12.0%)
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.
Radon
3.6 pCi/L
in the top 4.2% nationally
Lower is healthier
ST58thUS96thDefinition & 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 ›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 ›Distance to a Superfund site
123.8 mi
in the top 2.6% nationally
Higher is healthier
ST69thUS97thDefinition & 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 ›Colon-cancer screening
76.6%
in the top 1.3% nationally
Higher is healthier
ST99thUS99thDefinition & source ›
The estimated share of adults aged 45–75 who are up to date on colorectal-cancer screening.
Full methodology ›Walkability
1.3 intersections/sq mi
in the bottom 3.9% nationally
Higher is healthier
ST33rdUS4thDefinition & source ›
The number of street intersections per square mile — a standard street-connectivity measure; denser networks correlate with more walkable neighborhoods.
Full methodology ›Housing-cost burden
5.2%
in the bottom 5.2% nationally
Lower is healthier
ST10thUS5thDefinition & source ›
The share of households spending 30% or more of their income on housing.
Full methodology ›Distance to a community health center
23 mi
in the top 6.6% nationally
Lower is healthier
ST68thUS93rdDefinition & 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 ›Lithium in drinking water
67 µg/L
in the top 6.8% nationally
Lower is healthier
ST85thUS93rdDefinition & 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 ›Fine-particle (PM2.5) exceedance
1.4%
in the top 6.9% nationally
Lower is healthier
ST89thUS93rdDefinition & 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 ›Poverty rate
2.2%
in the bottom 7.5% nationally
Lower is healthier
ST14thUS7thDefinition & source ›
The share of residents whose income is below the federal poverty line, from the Census Bureau’s American Community Survey.
Full methodology ›The read
By the composite health measure, Hecla, South Dakota (ZIP 57446) ranks in the top 19% healthiest ZIPs nationally (5,970th) and the top 12.0% of South Dakota (43rd).
The signals balance out across the profile, strengths against concerns: modeled short sleep sits in the bottom 1.3% nationally, and distance to a Superfund site is in the top 2.6% nationally. Modeled colon screening settles in the top 1.3% nationally, and housing-cost burden resides in the bottom 5.2% nationally. Unemployment registers at the national minimum, shared with about 15% of ZIPs. Set against that, modeled radon rests in the top 4.2% nationally, walkability stands in the bottom 3.9% nationally, and distance to a community health center lies in the top 6.6% nationally. Lithium in drinking water lands in the top 6.8% nationally, and modeled fine-particle sits in the top 6.9% 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. Lithium in drinking water is a natural metal that dissolves into some groundwater and has no federal drinking-water limit yet. Close by, ZIP 57433, 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
Social Need / SDOH
healthier than 70%
16%
Preventive Care
healthier than 97%
13%
Risk Behavior
healthier than 92%
11%
Mental Health
healthier than 96%
8%
Disability
healthier than 62%
7%
Holding it back
Chronic Disease Burden
healthier than 36%
21%
Environmental Hazard
healthier than 36%
14%
Climate / Disaster Risk
healthier than 37%
5%
Healthcare Access
healthier than 5%
5%
Lifting this score
Social Need / SDOH
healthier than 85%
16%
Preventive Care
in the top 0.00%
13%
Risk Behavior
in the top 0.9%
11%
Mental Health
in the top 0.5%
8%
About typical
Environmental Hazard
healthier than 42%
14%
Disability
healthier than 55%
7%
Holding it back
Chronic Disease Burden
healthier than 21%
21%
Climate / Disaster Risk
healthier than 11%
5%
Healthcare Access
healthier than 32%
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
57430
South Dakotashares a border
Score 54.47
Closest healthier
57433
South Dakotashares a border
Score 58.66
Similar health profile
13450
New York98% similar profile
Score 60.28
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 | 36.5% | 33.1–39.9 |
| High blood pressure among adults | 39.6% | 35.9–43.3 |
| Cancer (non-skin) or melanoma among adults | 13.6% | 12.2–14.9 |
| Current asthma among adults | 9.3% | 8.2–10.5 |
| Coronary heart disease among adults | 9.0% | 7.8–10.2 |
| Chronic obstructive pulmonary disease among adults | 7.7% | 6.4–9.2 |
| Depression among adults | 18.3% | 15.8–21.0 |
| Diagnosed diabetes among adults | 14.0% | 12.1–16.2 |
| High cholesterol among adults who have ever been screened | 40.4% | 36.7–44.1 |
| Obesity among adults | 34.4% | 29.5–39.3 |
| Stroke among adults | 4.2% | 3.7–4.8 |
| All teeth lost among adults aged >=65 years | 7.1% | 5.8–8.7 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 6.4% | 4.9–8.1 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 84.3% | 81.5–86.7 |
| Visits to doctor for routine checkup within the past year among adults | 82.9% | 80.3–85.3 |
| Cholesterol screening among adults | 90.4% | 89.0–91.8 |
| Colorectal cancer screening among adults aged 45–75 years | 76.6% | 73.2–79.8 |
| Visited dentist or dental clinic in the past year among adults | 73.5% | 70.8–76.0 |
| Mammography use among women aged 50-74 years | 79.5% | 74.4–84.3 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 13.9% | 11.7–16.2 |
| Current cigarette smoking among adults | 12.8% | 10.4–15.3 |
| No leisure-time physical activity among adults | 24.8% | 20.8–29.0 |
| Short sleep duration among adults | 26.7% | 23.4–30.2 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 16.6% | 13.9–19.4 |
| Frequent mental distress among adults | 12.1% | 10.6–13.7 |
| Frequent physical distress among adults | 13.1% | 11.3–15.0 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 10.8% | 9.2–12.5 |
| Any disability among adults | 32.1% | 28.1–36.4 |
| Hearing disability among adults | 10.6% | 9.3–12.0 |
| Independent living disability among adults | 6.8% | 5.8–7.9 |
| Mobility disability among adults | 15.5% | 13.1–18.2 |
| Self-care disability among adults | 3.5% | 3.0–4.1 |
| Vision disability among adults | 4.1% | 3.5–4.8 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | SD median (p10–p90) |
|---|---|---|---|
| Poverty rate | 2.2% | 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+) | 4.8% | 7.9% (1.8–20.7%) n=32,505 | 6.0% (0.8–15.3%) n=366 |
| Bachelor's or higher (25+) | 10.6% | 23.3% (9.2–53.6%) n=32,505 | 24.6% (10.3–40.7%) n=366 |
| Unemployment rate (16+) | 0.0% | 3.9% (0.0–9.8%) n=32,274 | 1.1% (0.0–8.0%) n=365 |
| Households without a vehicle | 0.0% | 3.9% (0.0–12.5%) n=32,322 | 1.9% (0.0–9.6%) n=364 |
| Broadband subscription | 94.8% | 89.3% (75.1–97.1%) n=32,322 | 87.9% (73.7–96.3%) n=364 |
| Housing cost burden (≥30% income) | 5.2% | 23.7% (10.6–40.0%) n=32,322 | 17.5% (5.2–30.6%) n=364 |
| Homeownership rate | 94.8% | 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 | 1.8% | 2.6% (0.0–18.6%) n=32,553 | 0.6% (0.0–5.3%) n=367 |
| Single-parent households | 79.1% | 53.6% (37.3–74.1%) n=32,087 | 56.7% (32.7–81.4%) n=362 |
| Population 65+ | 53.8% | 19.4% (10.8–33.6%) n=32,553 | 20.3% (8.4–33.0%) n=367 |
| Median age | 66.1 yr | 42.2 yr (33.0–56.3) n=32,292 | 41.5 yr (27.6–56.7) n=365 |
| Median household income | $44,375 | $72,070 ($46,039–$118,707) n=30,318 | $74,865 ($51,211–$102,582) n=336 |
| Median home value | $50,400 | $222,200 ($100,300–$579,820) n=30,049 | $177,400 ($79,000–$321,400) n=311 |
| Median gross rent | — | $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 | 84.0 yr ± 1.94 | 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 1.94 years of 84.0, 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