ZIP code
57430
in Britton, South DakotaPopulation 1,828
54.47/ 100
Ranked #10,108 of 32,066 US ZIPs (top 32%)
Ranked #137 of 360 South Dakota ZIPs (top 38%)
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.
Loneliness
25.2%
in the bottom 0.5% nationally
Lower is healthier
ST1stUS1stDefinition & source ›
The estimated share of adults who report feeling lonely.
Full methodology ›Radon
3.8 pCi/L
in the top 3.1% nationally
Lower is healthier
ST70thUS97thDefinition & 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 ›Lithium in drinking water
130 µg/L
in the top 1.6% nationally
Lower is healthier
ST95thUS98thDefinition & 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 ›Grocery access
0.47 per 1,000 residents
in the top 1.7% nationally
Higher is healthier
ST97thUS98thDefinition & source ›
The number of full supermarkets 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. ZipVitals’s food-access signal is derived from these in-ZIP densities — it is not USDA’s food-desert designation, which measures distance to the nearest supermarket. Where a leg is missing, a ZIP reads “not determinable,” never “not a food desert.”
Full methodology ›Elder-services access
0.47 per 1,000 residents
in the top 2.6% nationally
Higher is healthier
ST87thUS97thDefinition & source ›
The number of services for older adults and people with disabilities 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 ›Child-care access
0.94 per 1,000 residents
in the top 2.7% nationally
Higher is healthier
ST88thUS97thDefinition & source ›
The number of child day-care services 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 ›Energy-cost burden
5.9%
in the top 3.3% nationally
Lower is healthier
ST89thUS97thDefinition & 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 ›Distance to a community health center
32.8 mi
in the top 3.4% nationally
Lower is healthier
ST83rdUS97thDefinition & 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 ›Distance to a Superfund site
101.9 mi
in the top 3.5% nationally
Higher is healthier
ST53rdUS97thDefinition & 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 ›Fiber broadband
99.4%
in the top 3.8% nationally
Higher is healthier
ST76thUS96thDefinition & source ›
The share of homes where fiber-optic internet service is available.
Full methodology ›The read
Britton, South Dakota (ZIP 57430), overall, ranks in the top 32% healthiest ZIPs nationally (10,108th) and the top 38% of South Dakota (137th).
Reading the numbers as a whole, the picture lands somewhere in between: modeled loneliness lands in the bottom 0.5% nationally, grocery lies in the top 1.7% nationally, and elder services stands in the top 2.6% nationally. Childcare rests in the top 2.7% nationally, distance to a Superfund site registers in the top 3.5% nationally, and fiber broadband resides in the top 3.8% nationally. On the other side, modeled radon settles in the top 3.1% nationally, and lithium in drinking water is in the top 1.6% nationally. Modeled energy burden sits in the top 3.3% nationally, and distance to a community health center lands in the top 3.4% nationally.
Defined simply, radon is a radioactive soil gas the EPA identifies as the top cause of lung cancer in nonsmokers. Lithium in drinking water is a natural metal that dissolves into some groundwater and has no federal drinking-water limit yet. Distance to a Superfund site is an abandoned or uncontrolled hazardous-waste site the EPA has identified for cleanup. ZIP 57446, just across the boundary, comes out 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 69%
13%
Risk Behavior
healthier than 66%
11%
Mental Health
healthier than 86%
8%
Climate / Disaster Risk
healthier than 82%
5%
About typical
Chronic Disease Burden
healthier than 59%
21%
Social Need / SDOH
healthier than 44%
16%
Disability
healthier than 59%
7%
Holding it back
Environmental Hazard
healthier than 22%
14%
Healthcare Access
healthier than 4%
5%
Lifting this score
Mental Health
healthier than 69%
8%
Climate / Disaster Risk
healthier than 82%
5%
About typical
Chronic Disease Burden
healthier than 53%
21%
Social Need / SDOH
healthier than 58%
16%
Preventive Care
healthier than 53%
13%
Risk Behavior
healthier than 49%
11%
Disability
healthier than 49%
7%
Holding it back
Environmental Hazard
healthier than 10%
14%
Healthcare Access
healthier than 29%
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
57247
South Dakotashares a border
Score 52.84
Closest healthier
57446
South Dakotashares a border
Score 58.53
Similar health profile
58057
North Dakota98% similar profile
Score 54.84
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 | 29.6% | 26.0–33.3 |
| High blood pressure among adults | 35.3% | 31.0–39.8 |
| Cancer (non-skin) or melanoma among adults | 11.0% | 9.9–12.2 |
| Current asthma among adults | 9.8% | 8.7–11.1 |
| Coronary heart disease among adults | 7.8% | 6.8–8.8 |
| Chronic obstructive pulmonary disease among adults | 7.3% | 6.2–8.6 |
| Depression among adults | 19.8% | 16.5–23.3 |
| Diagnosed diabetes among adults | 11.8% | 10.1–13.8 |
| High cholesterol among adults who have ever been screened | 36.2% | 31.7–40.9 |
| Obesity among adults | 34.9% | 26.7–43.7 |
| Stroke among adults | 3.9% | 3.4–4.4 |
| All teeth lost among adults aged >=65 years | 8.8% | 6.9–10.8 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 8.1% | 6.5–10.1 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 78.7% | 75.5–81.5 |
| Visits to doctor for routine checkup within the past year among adults | 77.1% | 73.2–80.7 |
| Cholesterol screening among adults | 86.7% | 84.8–88.5 |
| Colorectal cancer screening among adults aged 45–75 years | 69.0% | 63.9–73.8 |
| Visited dentist or dental clinic in the past year among adults | 68.4% | 64.8–71.8 |
| Mammography use among women aged 50-74 years | 78.0% | 70.8–84.2 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 17.8% | 14.5–21.2 |
| Current cigarette smoking among adults | 14.9% | 12.4–17.8 |
| No leisure-time physical activity among adults | 24.5% | 20.0–29.5 |
| Short sleep duration among adults | 30.0% | 24.0–36.7 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 16.8% | 14.2–19.8 |
| Frequent mental distress among adults | 14.4% | 12.5–16.4 |
| Frequent physical distress among adults | 12.9% | 11.1–14.7 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 12.9% | 11.1–14.8 |
| Any disability among adults | 30.8% | 26.5–35.6 |
| Hearing disability among adults | 9.5% | 8.3–10.8 |
| Independent living disability among adults | 7.6% | 6.6–8.8 |
| Mobility disability among adults | 14.0% | 11.8–16.4 |
| Self-care disability among adults | 3.6% | 3.1–4.1 |
| Vision disability among adults | 4.4% | 3.9–5.1 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 19.6% | 13.1–26.2 |
| Food insecurity in the past 12 months among adults | 9.7% | 4.2–17.3 |
| Received food stamps in the past 12 months among adults | 6.2% | 2.4–12.0 |
| Housing insecurity in the past 12 months among adults | 7.2% | 3.8–11.2 |
| Lack of reliable transportation in the past 12 months among adults | 5.1% | 2.9–7.9 |
| Loneliness among adults | 25.2% | 19.3–32.3 |
| Utility services shut-off threat in the past 12 months among adults | 4.9% | 2.9–7.1 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | SD median (p10–p90) |
|---|---|---|---|
| Poverty rate | 8.7% | 10.6% (3.1–25.8%) n=32,364 | 8.8% (1.1–33.5%) n=364 |
| Uninsured 18–64 | 6.3% | 9.0% (1.5–24.3%) n=32,286 | 9.6% (0.0–33.2%) n=365 |
| No HS diploma (25+) | 9.8% | 7.9% (1.8–20.7%) n=32,505 | 6.0% (0.8–15.3%) n=366 |
| Bachelor's or higher (25+) | 23.2% | 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 | 1.1% | 3.9% (0.0–12.5%) n=32,322 | 1.9% (0.0–9.6%) n=364 |
| Broadband subscription | 92.5% | 89.3% (75.1–97.1%) n=32,322 | 87.9% (73.7–96.3%) n=364 |
| Housing cost burden (≥30% income) | 17.9% | 23.7% (10.6–40.0%) n=32,322 | 17.5% (5.2–30.6%) n=364 |
| Homeownership rate | 77.9% | 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 | 2.4% | 2.6% (0.0–18.6%) n=32,553 | 0.6% (0.0–5.3%) n=367 |
| Single-parent households | 64.2% | 53.6% (37.3–74.1%) n=32,087 | 56.7% (32.7–81.4%) n=362 |
| Population 65+ | 24.4% | 19.4% (10.8–33.6%) n=32,553 | 20.3% (8.4–33.0%) n=367 |
| Median age | 45.0 yr | 42.2 yr (33.0–56.3) n=32,292 | 41.5 yr (27.6–56.7) n=365 |
| Median household income | $70,484 | $72,070 ($46,039–$118,707) n=30,318 | $74,865 ($51,211–$102,582) n=336 |
| Median home value | $149,200 | $222,200 ($100,300–$579,820) n=30,049 | $177,400 ($79,000–$321,400) n=311 |
| Median gross rent | $820 | $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 unavailable for this ZIP — fewer than 80% of the census tracts that make it up could be matched across the 2010→2020 tract-boundary revision, so no value is published rather than an unreliable one. See how coverage gaps are handled. | |||
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