ZIP code
50583
in Sac City, IowaPopulation 2,288
53.62/ 100
Ranked #11,202 of 32,066 US ZIPs (top 35%)
Ranked #362 of 922 Iowa ZIPs (top 39%)
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 1.6% nationally
Lower is healthier
ST80thUS98thDefinition & 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 ›Child-care access
1.5 per 1,000 residents
in the top 0.8% nationally
Higher is healthier
ST98thUS99thDefinition & 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 ›Mental-health provider access
0.38 per 1,000 residents
in the top 1.4% nationally
Higher is healthier
ST98thUS99thDefinition & source ›
The number of mental-health 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 ›Arsenic in groundwater
25.6%
in the top 4.3% nationally
Lower is healthier
ST88thUS96thDefinition & source ›
The modeled probability that untreated groundwater in this area — the source private wells draw on — exceeds the federal arsenic limit of 10 micrograms per liter.
A modeled likelihood for untreated groundwater, the source drawn on by private wells, which are federally unregulated. It is not a measurement of treated water delivered by a public system, and it is not a test of any individual well.
Full methodology ›Recreation access
1.1 per 1,000 residents
in the top 6.8% nationally
Higher is healthier
ST90thUS93rdDefinition & 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 ›Mammography
81.8%
in the top 4.4% nationally
Higher is healthier
ST95thUS96thDefinition & source ›
The estimated share of women aged 50–74 who had a mammogram within the past two years.
Full methodology ›Distance to a Superfund site
59.1 mi
in the top 8.9% nationally
Higher is healthier
ST96thUS91stDefinition & 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 ›Pharmacy access
0.38 per 1,000 residents
in the top 9.1% nationally
Higher is healthier
ST89thUS91stDefinition & source ›
The number of pharmacies 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 ›Colon-cancer screening
72.6%
in the top 8.5% nationally
Higher is healthier
ST94thUS92ndDefinition & source ›
The estimated share of adults aged 45–75 who are up to date on colorectal-cancer screening.
Full methodology ›Fatal road crashes
30.6 per 100,000 residents per year
in the top 12.8% nationally
Lower is healthier
ST93rdUS87thDefinition & source ›
The annual rate of fatal road crashes per 100,000 residents, pooled over a ten-year window.
A rate per resident population. Where a ZIP has too few residents for the rate to be reliable — about 30% of US ZIPs — no value is published rather than an unstable one; those ZIPs are absent from this comparison, not counted as crash-free.
Full methodology ›Cross-source signals
Combined exposures in this ZIP
More than one environmental exposure stands out in this ZIP. Each is established independently and shown on its own above; they are grouped here for context — not because one causes the other.
USGS models a high likelihood that groundwater arsenic here exceeds 10 µg/L — the level EPA sets as the limit for public water systems — and this area's modeled radon runs above EPA's 4 pCi/L action level.
See the full radon & arsenic analysis →
The read
In its overall standing, Sac City, Iowa (ZIP 50583) lands in the top 35% healthiest ZIPs nationally (11,202nd) and the top 39% of Iowa (362nd).
This area's measures are easy to read as a mixed set: childcare stands in the top 0.8% nationally, and mental-health providers rests in the top 1.4% nationally. Distance to an emergency room registers at the national minimum, shared with about 11% of ZIPs. Recreation resides in the top 6.8% nationally, and modeled mammography settles in the top 4.4% nationally. Distance to a Superfund site is in the top 8.9% nationally, and pharmacy sits in the top 9.1% nationally. Modeled transportation noise lands in the bottom 11.3% nationally. Set against that, modeled radon lies in the top 1.6% nationally, and arsenic stands in the top 4.3% nationally.
Against the wider neighborhood, childcare runs far higher than the surrounding ZIPs on this measure. Put simply, radon is a radioactive soil gas the EPA identifies as the top cause of lung cancer in nonsmokers. Arsenic is a natural groundwater contaminant, here a modeled estimate of the chance private-well levels exceed a benchmark. Distance to a Superfund site is an abandoned or uncontrolled hazardous-waste site the EPA has identified for cleanup. On the overall standing, ZIP 50540, just across the boundary, ranks healthier.
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 71%
16%
Preventive Care
healthier than 89%
13%
Mental Health
healthier than 76%
8%
Climate / Disaster Risk
healthier than 69%
5%
About typical
Chronic Disease Burden
healthier than 41%
21%
Risk Behavior
healthier than 43%
11%
Disability
healthier than 51%
7%
Holding it back
Environmental Hazard
healthier than 26%
14%
Healthcare Access
healthier than 22%
5%
Lifting this score
Social Need / SDOH
healthier than 85%
16%
Preventive Care
healthier than 92%
13%
Climate / Disaster Risk
healthier than 86%
5%
About typical
Risk Behavior
healthier than 60%
11%
Mental Health
healthier than 58%
8%
Healthcare Access
healthier than 54%
5%
Holding it back
Chronic Disease Burden
healthier than 29%
21%
Environmental Hazard
healthier than 36%
14%
Disability
healthier than 30%
7%
“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
50535
Iowashares a border
Score 49.81
Closest healthier
50540
Iowashares a border
Score 54.40
Similar health profile
54430
Wisconsin96% similar profile
Score 53.83
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 | 32.3% | 28.6–36.0 |
| High blood pressure among adults | 38.3% | 34.0–42.8 |
| Cancer (non-skin) or melanoma among adults | 11.0% | 9.9–12.2 |
| Current asthma among adults | 10.2% | 8.9–11.5 |
| Coronary heart disease among adults | 8.2% | 7.3–9.3 |
| Chronic obstructive pulmonary disease among adults | 8.4% | 7.0–9.8 |
| Depression among adults | 20.3% | 17.0–23.7 |
| Diagnosed diabetes among adults | 12.5% | 10.7–14.5 |
| High cholesterol among adults who have ever been screened | 38.3% | 33.7–43.0 |
| Obesity among adults | 41.2% | 32.8–49.9 |
| Stroke among adults | 4.1% | 3.6–4.6 |
| All teeth lost among adults aged >=65 years | 8.2% | 6.5–10.0 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 6.7% | 5.2–8.4 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 81.2% | 78.5–83.6 |
| Visits to doctor for routine checkup within the past year among adults | 79.4% | 75.8–82.7 |
| Cholesterol screening among adults | 86.5% | 84.4–88.3 |
| Colorectal cancer screening among adults aged 45–75 years | 72.6% | 68.1–76.9 |
| Visited dentist or dental clinic in the past year among adults | 69.0% | 65.7–72.1 |
| Mammography use among women aged 50-74 years | 81.8% | 75.5–87.0 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 18.6% | 15.4–22.1 |
| Current cigarette smoking among adults | 15.1% | 12.5–18.0 |
| No leisure-time physical activity among adults | 26.7% | 21.9–32.1 |
| Short sleep duration among adults | 33.2% | 27.0–39.6 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 19.1% | 16.1–22.5 |
| Frequent mental distress among adults | 15.8% | 13.8–17.8 |
| Frequent physical distress among adults | 14.0% | 12.1–16.2 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 13.5% | 11.6–15.7 |
| Any disability among adults | 31.3% | 26.8–36.2 |
| Hearing disability among adults | 9.4% | 8.2–10.6 |
| Independent living disability among adults | 8.1% | 7.0–9.5 |
| Mobility disability among adults | 15.3% | 12.8–18.0 |
| Self-care disability among adults | 3.9% | 3.3–4.5 |
| Vision disability among adults | 4.7% | 4.0–5.4 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 22.2% | 18.7–26.1 |
| Food insecurity in the past 12 months among adults | 10.8% | 8.6–13.3 |
| Received food stamps in the past 12 months among adults | 9.2% | 7.4–11.5 |
| Housing insecurity in the past 12 months among adults | 8.1% | 6.7–9.7 |
| Lack of reliable transportation in the past 12 months among adults | 6.2% | 5.2–7.3 |
| Loneliness among adults | 30.5% | 25.6–35.7 |
| Utility services shut-off threat in the past 12 months among adults | 5.7% | 4.9–6.7 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | IA median (p10–p90) |
|---|---|---|---|
| Poverty rate | 14.9% | 10.6% (3.1–25.8%) n=32,364 | 8.5% (2.7–19.1%) n=931 |
| Uninsured 18–64 | 11.1% | 9.0% (1.5–24.3%) n=32,286 | 5.4% (0.7–14.7%) n=931 |
| No HS diploma (25+) | 7.9% | 7.9% (1.8–20.7%) n=32,505 | 5.1% (1.6–12.9%) n=932 |
| Bachelor's or higher (25+) | 23.8% | 23.3% (9.2–53.6%) n=32,505 | 20.9% (9.8–36.8%) n=932 |
| Unemployment rate (16+) | 5.3% | 3.9% (0.0–9.8%) n=32,274 | 2.2% (0.0–6.7%) n=932 |
| Households without a vehicle | 7.9% | 3.9% (0.0–12.5%) n=32,322 | 2.4% (0.0–7.9%) n=931 |
| Broadband subscription | 83.9% | 89.3% (75.1–97.1%) n=32,322 | 88.5% (77.9–95.1%) n=931 |
| Housing cost burden (≥30% income) | 23.1% | 23.7% (10.6–40.0%) n=32,322 | 18.2% (9.0–28.8%) n=931 |
| Homeownership rate | 71.7% | 78.7% (51.7–94.0%) n=32,322 | 82.1% (66.8–93.5%) n=931 |
| Crowded housing (>1 per room) | 1.4% | 1.3% (0.0–6.3%) n=32,322 | 0.4% (0.0–3.3%) n=931 |
| Foreign-born population | 1.3% | 2.6% (0.0–18.6%) n=32,553 | 1.0% (0.0–7.2%) n=932 |
| Single-parent households | 68.9% | 53.6% (37.3–74.1%) n=32,087 | 56.8% (43.7–75.5%) n=928 |
| Population 65+ | 29.5% | 19.4% (10.8–33.6%) n=32,553 | 20.2% (12.7–31.0%) n=932 |
| Median age | 53.3 yr | 42.2 yr (33.0–56.3) n=32,292 | 42.7 yr (34.1–54.7) n=931 |
| Median household income | $62,981 | $72,070 ($46,039–$118,707) n=30,318 | $73,848 ($55,055–$102,762) n=911 |
| Median home value | $144,700 | $222,200 ($100,300–$579,820) n=30,049 | $161,100 ($93,820–$278,170) n=892 |
| Median gross rent | $669 | $1,021 ($677–$1,912) n=25,670 | $825 ($614–$1,113) n=771 |
Life expectancyNCHS / RWJF USALEEP · model-based
| Measure | Value | US median (p10–p90) | IA median (p10–p90) |
|---|---|---|---|
| Life expectancy at birth | 79.0 yr ± 1.03 | 78.9 yr (74.7–82.8) n=31,308 | 80.0 yr (77.2–83.4) n=917 |
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 1.03 years of 79.0, 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