ZIP code
57787
in Union Center, South DakotaPopulation 487
57.22/ 100
Ranked #7,056 of 32,066 US ZIPs (top 22%)
Ranked #66 of 360 South Dakota ZIPs (top 18%)
Ranked #10 of 27 Rapid City, SD 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.
Walkability
0.16 intersections/sq mi
in the bottom 0.5% nationally
Higher is healthier
ST2ndUS1stDefinition & source ›
The number of street intersections per square mile — a standard street-connectivity measure; denser networks correlate with more walkable neighborhoods.
Full methodology ›Distance to a hazardous-chemical facility
29.3 mi
in the top 2.1% nationally
Higher is healthier
ST96thUS98thDefinition & source ›
The distance in miles from this ZIP’s edge to the nearest facility that handles enough hazardous chemicals to require an EPA risk-management plan for accidental releases.
Full methodology ›Distance to a nursing home
23.3 mi
in the top 2.6% nationally
Lower is healthier
ST95thUS97thDefinition & source ›
The distance in miles from this ZIP’s edge to the nearest Medicare- or Medicaid-certified nursing home.
Full methodology ›Home broadband subscription
100%
at the national maximum
Higher is healthier
ST99thUS99thDefinition & source ›
The share of households with a broadband internet subscription.
Full methodology ›Air-toxics cancer risk
10 per million
in the bottom 2.8% nationally
Lower is healthier
ST1stUS3rdDefinition & 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 ›Distance to an emergency room
25.9 mi
in the top 2.8% nationally
Lower is healthier
ST93rdUS97thDefinition & source ›
The distance in miles from this ZIP’s edge to the nearest Medicare-certified hospital with an emergency room.
Full methodology ›Short sleep
27.3%
in the bottom 1.9% nationally
Lower is healthier
ST5thUS2ndDefinition & source ›
The estimated share of adults who usually sleep less than seven hours in a 24-hour period.
Full methodology ›Industrial-pollution burden
in the bottom 3.2% nationally
Lower is healthier
ST5thUS3rdDefinition & 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 ›Housing-cost burden
4.5%
in the bottom 4.8% nationally
Lower is healthier
ST8thUS5thDefinition & source ›
The share of households spending 30% or more of their income on housing.
Full methodology ›Floodplain exposure
0.00%
in the bottom 6.4% nationally
Lower is healthier
ST8thUS6thDefinition & source ›
The share of this ZIP’s land area inside FEMA’s 1%-annual-chance floodplain — the “100-year” flood zone, where flooding has about a 1-in-100 chance in any given year.
Measured from FEMA’s mapped flood panels. Where a panel has not been mapped, no value is published for that ZIP — those ZIPs are absent from this comparison rather than counted as unexposed.
Full methodology ›The read
Union Center, South Dakota (ZIP 57787), by its overall standing, sits in the top 22% healthiest ZIPs nationally (7,056th) and the top 18% of South Dakota (66th).
The measures fall on both sides of the ledger for this area: distance to a hazardous-chemical facility is in the top 2.1% nationally, home broadband subscription resides at the national maximum, and modeled air-toxics cancer risk rests in the bottom 2.8% nationally. Modeled short sleep lies in the bottom 1.9% nationally, modeled industrial-pollution burden sits in the bottom 3.2% nationally, and housing-cost burden settles in the bottom 4.8% nationally. Floodplain exposure registers in the bottom 6.4% nationally. Set against that, walkability stands in the bottom 0.5% nationally, and distance to a nursing home lands in the top 2.6% nationally. Distance to an emergency room is in the top 2.8% nationally.
Defined in plain terms, distance to a hazardous-chemical facility is a plant handling large amounts of hazardous chemicals that must file an EPA risk-management plan for accidental releases. Air-toxics cancer risk is a modeled EPA estimate of added lifetime cancer risk from breathing outdoor air, per million people. Industrial-pollution burden is the EPA's modeled screening score weighting industrial chemical releases by their toxicity and how many people live nearby. The nearest ZIP ranking healthier overall is ZIP 57792, just across the boundary.
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. Compare it against the US, this state and the Rapid City, SD metro area.
Compared with the ZIP codes measured across all nine scoring domains — not with all US ZIP codes.
Lifting this score
Environmental Hazard
healthier than 87%
14%
Preventive Care
healthier than 78%
13%
Risk Behavior
healthier than 79%
11%
Mental Health
healthier than 84%
8%
Disability
healthier than 71%
7%
Climate / Disaster Risk
healthier than 82%
5%
About typical
Chronic Disease Burden
healthier than 58%
21%
Social Need / SDOH
healthier than 42%
16%
Holding it back
Healthcare Access
healthier than 3%
5%
Lifting this score
Environmental Hazard
healthier than 92%
14%
Preventive Care
healthier than 76%
13%
Risk Behavior
healthier than 87%
11%
Mental Health
healthier than 61%
8%
Disability
healthier than 74%
7%
Climate / Disaster Risk
healthier than 80%
5%
About typical
Chronic Disease Burden
healthier than 52%
21%
Social Need / SDOH
healthier than 56%
16%
Holding it back
Healthcare Access
healthier than 24%
5%
Lifting this score
Environmental Hazard
healthier than 77%
14%
Preventive Care
healthier than 68%
13%
Risk Behavior
healthier than 68%
11%
Mental Health
healthier than 73%
8%
Disability
healthier than 64%
7%
About typical
Chronic Disease Burden
healthier than 59%
21%
Climate / Disaster Risk
healthier than 50%
5%
Holding it back
Social Need / SDOH
healthier than 23%
16%
Healthcare Access
healthier than 23%
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
57626
South Dakotashares a border
Score 51.01
Closest healthier
57792
South Dakotashares a border
Score 57.40
Similar health profile
58382
North Dakota97% similar profile
Score 60.30
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% | 27.3–33.5 |
| High blood pressure among adults | 37.2% | 33.7–40.7 |
| Cancer (non-skin) or melanoma among adults | 11.1% | 10.0–12.4 |
| Current asthma among adults | 9.8% | 8.6–11.0 |
| Coronary heart disease among adults | 7.9% | 6.7–9.1 |
| Chronic obstructive pulmonary disease among adults | 7.2% | 5.7–8.9 |
| Depression among adults | 21.1% | 18.3–24.1 |
| Diagnosed diabetes among adults | 11.6% | 9.8–13.5 |
| High cholesterol among adults who have ever been screened | 38.9% | 35.2–42.4 |
| Obesity among adults | 31.7% | 27.2–36.5 |
| Stroke among adults | 3.7% | 3.1–4.3 |
| All teeth lost among adults aged >=65 years | 7.6% | 6.0–9.5 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 7.2% | 5.1–10.1 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 78.2% | 75.1–81.1 |
| Visits to doctor for routine checkup within the past year among adults | 78.1% | 75.2–81.0 |
| Cholesterol screening among adults | 88.5% | 86.2–90.3 |
| Colorectal cancer screening among adults aged 45–75 years | 69.3% | 64.5–73.8 |
| Visited dentist or dental clinic in the past year among adults | 72.4% | 68.9–75.6 |
| Mammography use among women aged 50-74 years | 77.2% | 69.6–83.8 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 17.8% | 15.3–20.6 |
| Current cigarette smoking among adults | 15.2% | 11.9–18.7 |
| No leisure-time physical activity among adults | 21.6% | 17.7–25.9 |
| Short sleep duration among adults | 27.3% | 22.0–33.2 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 16.1% | 13.1–19.6 |
| Frequent mental distress among adults | 13.9% | 11.9–15.8 |
| Frequent physical distress among adults | 12.5% | 10.5–14.4 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 11.7% | 9.8–14.0 |
| Any disability among adults | 29.6% | 25.3–34.1 |
| Hearing disability among adults | 9.0% | 7.7–10.3 |
| Independent living disability among adults | 6.7% | 5.6–8.0 |
| Mobility disability among adults | 13.2% | 10.8–15.9 |
| Self-care disability among adults | 3.4% | 2.8–4.1 |
| Vision disability among adults | 3.9% | 3.3–4.8 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | SD median (p10–p90) |
|---|---|---|---|
| Poverty rate | 13.6% | 10.6% (3.1–25.8%) n=32,364 | 8.8% (1.1–33.5%) n=364 |
| Uninsured 18–64 | 12.9% | 9.0% (1.5–24.3%) n=32,286 | 9.6% (0.0–33.2%) n=365 |
| No HS diploma (25+) | 5.3% | 7.9% (1.8–20.7%) n=32,505 | 6.0% (0.8–15.3%) n=366 |
| Bachelor's or higher (25+) | 35.9% | 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 | 100.0% | 89.3% (75.1–97.1%) n=32,322 | 87.9% (73.7–96.3%) n=364 |
| Housing cost burden (≥30% income) | 4.5% | 23.7% (10.6–40.0%) n=32,322 | 17.5% (5.2–30.6%) n=364 |
| Homeownership rate | 44.5% | 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 | 0.0% | 2.6% (0.0–18.6%) n=32,553 | 0.6% (0.0–5.3%) n=367 |
| Single-parent households | 32.8% | 53.6% (37.3–74.1%) n=32,087 | 56.7% (32.7–81.4%) n=362 |
| Population 65+ | 4.5% | 19.4% (10.8–33.6%) n=32,553 | 20.3% (8.4–33.0%) n=367 |
| Median age | 36.7 yr | 42.2 yr (33.0–56.3) n=32,292 | 41.5 yr (27.6–56.7) n=365 |
| Median household income | $53,750 | $72,070 ($46,039–$118,707) n=30,318 | $74,865 ($51,211–$102,582) n=336 |
| Median home value | $61,800 | $222,200 ($100,300–$579,820) n=30,049 | $177,400 ($79,000–$321,400) n=311 |
| Median gross rent | $952 | $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 | 82.1 yr ± 1.77 | 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 1.77 years of 82.1, 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