ZIP code
57783
in Spearfish, South DakotaPopulation 17,248
56.80/ 100
Ranked #7,457 of 32,066 US ZIPs (top 23%)
Ranked #80 of 360 South Dakota ZIPs (top 22%)
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
4.1 pCi/L
in the top 1.5% nationally
Lower is healthier
ST91stUS99thDefinition & 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
33.7 mi
in the top 3.3% 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 ›Park land
37.5%
in the top 3.6% nationally
Higher is healthier
ST98thUS96thDefinition & source ›
The share of this ZIP’s land area that is public parkland.
Full methodology ›Short sleep
28.3%
in the bottom 3.8% nationally
Lower is healthier
ST18thUS4thDefinition & source ›
The estimated share of adults who usually sleep less than seven hours in a 24-hour period.
Full methodology ›Outpatient-care access
0.56 per 1,000 residents
in the top 6.3% nationally
Higher is healthier
ST91stUS94thDefinition & source ›
The number of outpatient clinics located 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 ›Industrial-pollution burden
in the bottom 6.4% nationally
Lower is healthier
ST8thUS6thDefinition & 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 ›Air-toxics cancer risk
20 per million
in the bottom 8.2% nationally
Lower is healthier
ST25thUS8thDefinition & source ›
The EPA’s modeled estimate of added lifetime cancer risk from breathing outdoor air toxics, in cases per million people exposed over a lifetime.
Full methodology ›Recreation access
0.99 per 1,000 residents
in the top 9.1% nationally
Higher is healthier
ST88thUS91stDefinition & source ›
The number of places for physical recreation — gyms, sports, and fitness venues — 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 ›Natural-disaster risk
in the top 10.5% nationally
Lower is healthier
ST94thUS90thDefinition & 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 ›The read
On the composite measure, ZIP 57783, one of several in Spearfish, South Dakota stands in the top 23% healthiest ZIPs nationally (7,457th) and the top 22% of South Dakota (80th).
A profile of give and take, with clear readings each way: park land is in the top 3.6% nationally, and modeled short sleep registers in the bottom 3.8% nationally. Distance to an emergency room lies at the national minimum, shared with about 11% of ZIPs. Outpatient is in the top 6.3% nationally, modeled industrial-pollution burden registers in the bottom 6.4% nationally, and modeled air-toxics cancer risk lies in the bottom 8.2% nationally. Recreation is in the top 9.1% nationally. On the other side, modeled radon registers in the top 1.5% nationally, distance to a community health center lies in the top 3.3% nationally, and modeled disaster risk is in the top 10.5% nationally.
Set beside the wider area around it, park land runs far higher than the surrounding ZIPs on this measure. For clarity, radon is a radioactive soil gas the EPA identifies as the top cause of lung cancer in nonsmokers. Industrial-pollution burden is the EPA's modeled screening score weighting industrial chemical releases by their toxicity and how many people live nearby. Air-toxics cancer risk is a modeled EPA estimate of added lifetime cancer risk from breathing outdoor air, per million people. ZIP 57779, just across the boundary, ranks better overall among the ZIPs nearby.
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
Chronic Disease Burden
healthier than 69%
21%
Social Need / SDOH
healthier than 77%
16%
Preventive Care
healthier than 70%
13%
Risk Behavior
healthier than 74%
11%
Mental Health
healthier than 83%
8%
Disability
healthier than 64%
7%
Climate / Disaster Risk
healthier than 87%
5%
Holding it back
Environmental Hazard
healthier than 15%
14%
Healthcare Access
healthier than 4%
5%
Lifting this score
Chronic Disease Burden
healthier than 72%
21%
Social Need / SDOH
healthier than 93%
16%
Risk Behavior
healthier than 73%
11%
Disability
healthier than 61%
7%
Climate / Disaster Risk
healthier than 93%
5%
About typical
Preventive Care
healthier than 57%
13%
Mental Health
healthier than 57%
8%
Holding it back
Environmental Hazard
healthier than 2%
14%
Healthcare Access
healthier than 26%
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 ›
Findings that name this ZIP
One of our published findings lists this ZIP code. Each finding compares one published measure against a stated benchmark, and names only the ZIP codes whose estimates are reliable enough to rank. See all surprising findings.
Heavy environment, light chronic burden
Where the environment and chronic illness point in opposite directions
Environmental-hazard standing 14.8; chronic-disease standing 68.5 — 54 points apart, heavier on the environment than it is on chronic illness.
Ranked #14,775 of the 18,187 ZIP codes this finding names, ordered by the gap from cleanest environment to heaviest chronic burden, highest first.
Nearby & similar ZIPs
Editorially selected — see how this ZIP compares to nearby and similar places.
Nearby
57717
South Dakotashares a border
Score 50.31
Closest healthier
57779
South Dakotashares a border
Score 58.77
Similar health profile
58029
North Dakota97% similar profile
Score 60.98
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 | 28.3% | 25.8–31.3 |
| High blood pressure among adults | 31.7% | 28.8–35.1 |
| Cancer (non-skin) or melanoma among adults | 10.8% | 9.8–11.8 |
| Current asthma among adults | 10.1% | 9.0–11.4 |
| Coronary heart disease among adults | 7.3% | 6.5–8.1 |
| Chronic obstructive pulmonary disease among adults | 6.8% | 6.0–7.7 |
| Depression among adults | 20.9% | 18.2–24.1 |
| Diagnosed diabetes among adults | 10.6% | 9.3–12.2 |
| High cholesterol among adults who have ever been screened | 34.7% | 31.6–38.4 |
| Obesity among adults | 32.1% | 27.7–37.3 |
| Stroke among adults | 3.6% | 3.3–4.0 |
| All teeth lost among adults aged >=65 years | 10.5% | 8.5–12.7 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 8.0% | 6.8–9.4 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 77.6% | 74.9–80.3 |
| Visits to doctor for routine checkup within the past year among adults | 75.2% | 72.0–78.5 |
| Cholesterol screening among adults | 86.0% | 84.4–87.9 |
| Colorectal cancer screening among adults aged 45–75 years | 70.1% | 65.2–74.7 |
| Visited dentist or dental clinic in the past year among adults | 71.8% | 68.5–74.9 |
| Mammography use among women aged 50-74 years | 80.0% | 73.1–85.8 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 18.9% | 16.2–22.0 |
| Current cigarette smoking among adults | 13.5% | 11.7–15.6 |
| No leisure-time physical activity among adults | 22.8% | 19.7–26.2 |
| Short sleep duration among adults | 28.3% | 22.6–34.7 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 15.8% | 13.8–17.9 |
| Frequent mental distress among adults | 14.2% | 12.6–16.0 |
| Frequent physical distress among adults | 12.3% | 10.9–13.8 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 13.0% | 11.6–14.7 |
| Any disability among adults | 30.1% | 26.9–33.6 |
| Hearing disability among adults | 8.9% | 7.9–9.9 |
| Independent living disability among adults | 7.4% | 6.6–8.3 |
| Mobility disability among adults | 13.3% | 11.7–15.1 |
| Self-care disability among adults | 3.4% | 3.1–3.8 |
| Vision disability among adults | 4.4% | 4.0–4.9 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | SD median (p10–p90) |
|---|---|---|---|
| Poverty rate | 14.0% | 10.6% (3.1–25.8%) n=32,364 | 8.8% (1.1–33.5%) n=364 |
| Uninsured 18–64 | 12.6% | 9.0% (1.5–24.3%) n=32,286 | 9.6% (0.0–33.2%) n=365 |
| No HS diploma (25+) | 4.0% | 7.9% (1.8–20.7%) n=32,505 | 6.0% (0.8–15.3%) n=366 |
| Bachelor's or higher (25+) | 38.1% | 23.3% (9.2–53.6%) n=32,505 | 24.6% (10.3–40.7%) n=366 |
| Unemployment rate (16+) | 1.9% | 3.9% (0.0–9.8%) n=32,274 | 1.1% (0.0–8.0%) n=365 |
| Households without a vehicle | 5.6% | 3.9% (0.0–12.5%) n=32,322 | 1.9% (0.0–9.6%) n=364 |
| Broadband subscription | 92.4% | 89.3% (75.1–97.1%) n=32,322 | 87.9% (73.7–96.3%) n=364 |
| Housing cost burden (≥30% income) | 27.0% | 23.7% (10.6–40.0%) n=32,322 | 17.5% (5.2–30.6%) n=364 |
| Homeownership rate | 58.6% | 78.7% (51.7–94.0%) n=32,322 | 79.9% (57.2–94.8%) n=364 |
| Crowded housing (>1 per room) | 1.6% | 1.3% (0.0–6.3%) n=32,322 | 0.6% (0.0–10.2%) n=364 |
| Foreign-born population | 2.6% | 2.6% (0.0–18.6%) n=32,553 | 0.6% (0.0–5.3%) n=367 |
| Single-parent households | 59.9% | 53.6% (37.3–74.1%) n=32,087 | 56.7% (32.7–81.4%) n=362 |
| Population 65+ | 22.0% | 19.4% (10.8–33.6%) n=32,553 | 20.3% (8.4–33.0%) n=367 |
| Median age | 41.0 yr | 42.2 yr (33.0–56.3) n=32,292 | 41.5 yr (27.6–56.7) n=365 |
| Median household income | $74,844 | $72,070 ($46,039–$118,707) n=30,318 | $74,865 ($51,211–$102,582) n=336 |
| Median home value | $373,300 | $222,200 ($100,300–$579,820) n=30,049 | $177,400 ($79,000–$321,400) n=311 |
| Median gross rent | $965 | $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 | 79.2 yr ± 0.69 | 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 0.69 years of 79.2, 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