ZIP code
57646
in Mound City, South DakotaPopulation 272
54.64/ 100
Ranked #9,910 of 32,066 US ZIPs (top 31%)
Ranked #134 of 360 South Dakota ZIPs (top 37%)
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.
Industrial-pollution burden
in the bottom 0.8% nationally
Lower is healthier
ST3rdUS1stDefinition & source ›
The EPA’s modeled screening score for industrial chemical releases, weighting the amounts released by their toxicity and how many people live nearby — a relative comparison score, not a measured exposure.
Full methodology ›Distance to a Superfund site
174.6 mi
in the top 1.4% nationally
Higher is healthier
ST96thUS99thDefinition & 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 ›Radon
3.6 pCi/L
in the top 4.3% 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 ›Distance to a community health center
38.4 mi
in the top 2.4% nationally
Lower is healthier
ST89thUS98thDefinition & 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 ›Short sleep
26.9%
in the bottom 1.4% 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
0.97 intersections/sq mi
in the bottom 2.5% nationally
Higher is healthier
ST22ndUS2ndDefinition & 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
99.2%
in the top 4.4% nationally
Higher is healthier
ST71stUS96thDefinition & source ›
The share of homes where fiber-optic internet service is available.
Full methodology ›Colon-cancer screening
75.1%
in the top 2.9% nationally
Higher is healthier
ST98thUS97thDefinition & source ›
The estimated share of adults aged 45–75 who are up to date on colorectal-cancer screening.
Full methodology ›Hearing disability
11.2%
in the top 8.0% nationally
Lower is healthier
ST79thUS92ndDefinition & source ›
The estimated share of adults who are deaf or have serious difficulty hearing.
Full methodology ›Cognitive disability
11.5%
in the bottom 13.6% nationally
Lower is healthier
ST6thUS14thDefinition & source ›
The estimated share of adults with serious difficulty concentrating, remembering, or making decisions.
Full methodology ›The read
Overall, Mound City, South Dakota (ZIP 57646) places in the top 31% healthiest ZIPs nationally (9,910th) and the top 37% of South Dakota (134th), based on limited data; treat as directional.
The data opens on a genuinely even set of readings: modeled industrial-pollution burden lies in the bottom 0.8% nationally, and distance to a Superfund site rests in the top 1.4% nationally. Modeled short sleep resides in the bottom 1.4% nationally, and fiber broadband is in the top 4.4% nationally. Modeled colon screening lands in the top 2.9% nationally. Unemployment stands at the national minimum, shared with about 15% of ZIPs. Households without a vehicle registers at the national minimum, shared with about 16% of ZIPs. On the other side, modeled radon settles in the top 4.3% nationally, distance to a community health center sits in the top 2.4% nationally, and walkability lies in the bottom 2.5% nationally.
For readers new to these terms, industrial-pollution burden is the EPA's modeled screening score weighting industrial chemical releases by their toxicity and how many people live nearby. Distance to a Superfund site is an abandoned or uncontrolled hazardous-waste site the EPA has identified for cleanup. Radon is a radioactive soil gas the EPA identifies as the top cause of lung cancer in nonsmokers. Among nearby ZIPs, the nearest healthier one overall is ZIP 57450, about 20 miles away.
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 93%
13%
Risk Behavior
healthier than 87%
11%
Mental Health
healthier than 95%
8%
Climate / Disaster RiskPartial
healthier than 65%
5%
About typical
Environmental Hazard
healthier than 57%
14%
Disability
healthier than 49%
7%
Holding it back
Chronic Disease Burden
healthier than 30%
21%
Social Need / SDOH
healthier than 23%
16%
Healthcare Access
healthier than 1%
5%
Lifting this score
Environmental Hazard
healthier than 81%
14%
Preventive Care
healthier than 97%
13%
Risk Behavior
healthier than 97%
11%
Mental Health
healthier than 98%
8%
About typical
Climate / Disaster RiskPartial
healthier than 57%
5%
Holding it back
Chronic Disease Burden
healthier than 17%
21%
Social Need / SDOH
healthier than 25%
16%
Disability
healthier than 28%
7%
Healthcare Access
healthier than 9%
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
57437
South Dakotashares a border
Score 48.72
Closest healthier
57450
South Dakotaabout 20 mi away
Score 55.47
Similar health profile
57247
South Dakota99% similar profile
Score 52.84
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 | 34.0% | 29.8–38.1 |
| High blood pressure among adults | 40.9% | 35.7–45.7 |
| Cancer (non-skin) or melanoma among adults | 13.4% | 12.0–14.8 |
| Current asthma among adults | 9.5% | 8.3–10.8 |
| Coronary heart disease among adults | 9.6% | 8.3–11.1 |
| Chronic obstructive pulmonary disease among adults | 8.4% | 6.8–10.2 |
| Depression among adults | 18.4% | 15.2–21.9 |
| Diagnosed diabetes among adults | 14.4% | 12.1–16.8 |
| High cholesterol among adults who have ever been screened | 40.5% | 35.8–45.5 |
| Obesity among adults | 33.6% | 25.5–42.2 |
| Stroke among adults | 4.6% | 4.0–5.3 |
| All teeth lost among adults aged >=65 years | 11.9% | 9.6–14.7 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 7.9% | 6.0–10.1 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 82.9% | 79.9–85.5 |
| Visits to doctor for routine checkup within the past year among adults | 80.8% | 77.3–83.9 |
| Cholesterol screening among adults | 90.0% | 88.2–91.6 |
| Colorectal cancer screening among adults aged 45–75 years | 75.1% | 70.1–79.7 |
| Visited dentist or dental clinic in the past year among adults | 72.6% | 69.4–75.7 |
| Mammography use among women aged 50-74 years | 77.6% | 69.9–84.4 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 14.5% | 11.7–17.3 |
| Current cigarette smoking among adults | 13.8% | 10.6–17.2 |
| No leisure-time physical activity among adults | 26.4% | 20.8–32.2 |
| Short sleep duration among adults | 26.9% | 21.1–33.8 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 18.5% | 15.1–22.4 |
| Frequent mental distress among adults | 12.4% | 10.6–14.3 |
| Frequent physical distress among adults | 13.7% | 11.5–16.1 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 11.5% | 9.6–13.7 |
| Any disability among adults | 32.5% | 27.1–38.0 |
| Hearing disability among adults | 11.2% | 9.8–12.8 |
| Independent living disability among adults | 7.5% | 6.3–9.1 |
| Mobility disability among adults | 16.3% | 13.2–19.7 |
| Self-care disability among adults | 3.9% | 3.3–4.8 |
| Vision disability among adults | 4.9% | 4.1–5.8 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | SD median (p10–p90) |
|---|---|---|---|
| Poverty rate | 12.9% | 10.6% (3.1–25.8%) n=32,364 | 8.8% (1.1–33.5%) n=364 |
| Uninsured 18–64 | 1.9% | 9.0% (1.5–24.3%) n=32,286 | 9.6% (0.0–33.2%) n=365 |
| No HS diploma (25+) | 3.2% | 7.9% (1.8–20.7%) n=32,505 | 6.0% (0.8–15.3%) n=366 |
| Bachelor's or higher (25+) | 47.0% | 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 | 84.4% | 89.3% (75.1–97.1%) n=32,322 | 87.9% (73.7–96.3%) n=364 |
| Housing cost burden (≥30% income) | 12.8% | 23.7% (10.6–40.0%) n=32,322 | 17.5% (5.2–30.6%) n=364 |
| Homeownership rate | 88.1% | 78.7% (51.7–94.0%) n=32,322 | 79.9% (57.2–94.8%) n=364 |
| Crowded housing (>1 per room) | 3.7% | 1.3% (0.0–6.3%) n=32,322 | 0.6% (0.0–10.2%) n=364 |
| Foreign-born population | 13.2% | 2.6% (0.0–18.6%) n=32,553 | 0.6% (0.0–5.3%) n=367 |
| Single-parent households | 52.9% | 53.6% (37.3–74.1%) n=32,087 | 56.7% (32.7–81.4%) n=362 |
| Population 65+ | 19.1% | 19.4% (10.8–33.6%) n=32,553 | 20.3% (8.4–33.0%) n=367 |
| Median age | 37.5 yr | 42.2 yr (33.0–56.3) n=32,292 | 41.5 yr (27.6–56.7) n=365 |
| Median household income | $101,406 | $72,070 ($46,039–$118,707) n=30,318 | $74,865 ($51,211–$102,582) n=336 |
| Median home value | $113,300 | $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 | 81.6 yr ± 1.96 | 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 1.96 years of 81.6, 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