ZIP code
51111
in Sioux City, IowaPopulation 39
35.47/ 100
Ranked #29,203 of 32,066 US ZIPs (bottom 9.0%)
Ranked #919 of 922 Iowa ZIPs (bottom 0.4%)
Ranked #29 of 30 Sioux City, IA-NE-SD ZIPs (bottom 3.4%)
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.
Homeownership rate
0.00%
at the national minimum
Higher is healthier
ST1stUS1stDefinition & source ›
The share of occupied homes that are owned, rather than rented, by the people living in them.
Full methodology ›Lithium in drinking water
180 µg/L
in the top 0.7% nationally
Lower is healthier
ST96thUS99thDefinition & 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 ›PFOA in drinking water
100%
at the national maximum
Lower is healthier
ST99thUS99thDefinition & source ›
The share of residents served by public water systems where PFOA, one of the man-made “forever chemicals,” was detected in EPA testing.
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 ›Housing-cost burden
0.00%
at the national minimum
Lower is healthier
ST1stUS1stDefinition & source ›
The share of households spending 30% or more of their income on housing.
Full methodology ›PFOS in drinking water
100%
at the national maximum
Lower is healthier
ST99thUS99thDefinition & source ›
The share of residents served by public water systems where PFOS, one of the most common “forever chemicals,” was detected in EPA testing.
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 ›Poverty rate
0.00%
at the national minimum
Lower is healthier
ST1stUS1stDefinition & source ›
The share of residents whose income is below the federal poverty line, from the Census Bureau’s American Community Survey.
Full methodology ›Radon
3.5 pCi/L
in the top 4.8% nationally
Lower is healthier
ST54thUS95thDefinition & 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 ›Home broadband subscription
100%
at the national maximum
Higher is healthier
ST99thUS99thDefinition & source ›
The share of households with a broadband internet subscription.
Full methodology ›Cognitive disability
21.9%
in the top 4.1% nationally
Lower is healthier
ST99thUS96thDefinition & source ›
The estimated share of adults with serious difficulty concentrating, remembering, or making decisions.
Full methodology ›Independent-living disability
13.7%
in the top 4.7% nationally
Lower is healthier
ST99thUS95thDefinition & source ›
The estimated share of adults who have difficulty doing errands alone, such as visiting a doctor’s office, because of a physical, mental, or emotional condition.
Full methodology ›The read
ZIP 51111, one of several in Sioux City, Iowa, in overall standing, comes out in the bottom 9.0% nationally (29,203rd) and the bottom 0.4% of Iowa (919th).
The profile carries real weight, and several readings make that plain: homeownership stands at the national minimum, lithium in drinking water resides in the top 0.7% nationally, and PFOA in drinking water sits at the national maximum. PFOS in drinking water stands at the national maximum, modeled radon resides in the top 4.8% nationally, and modeled cognitive disability sits in the top 4.1% nationally. Modeled independent living disability stands in the top 4.7% nationally. Better still, housing-cost burden resides at the national minimum, and poverty sits at the national minimum. Home broadband subscription stands at the national maximum.
Set within its surrounding area, park land runs far higher than the surrounding ZIPs on this measure. Defined simply, for reference, lithium in drinking water is a natural metal that dissolves into some groundwater and has no federal drinking-water limit yet. PFOA in drinking water is one of the man-made "forever chemicals" that build up in the body and environment instead of breaking down. PFOS in drinking water is a common one of the man-made "forever chemicals" that build up in the body and environment instead of breaking down. The closest healthier ZIP overall is ZIP 51054, 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 Sioux City, IA-NE-SD metro area.
Compared with the ZIP codes measured across all nine scoring domains — not with all US ZIP codes.
Lifting this score
Healthcare Access
healthier than 60%
5%
About typical
Climate / Disaster Risk
healthier than 47%
5%
Holding it back
Chronic Disease Burden
healthier than 30%
21%
Social Need / SDOH
healthier than 24%
16%
Environmental Hazard
healthier than 4%
14%
Preventive Care
healthier than 7%
13%
Risk Behavior
healthier than 9%
11%
Mental Health
healthier than 11%
8%
Disability
healthier than 8%
7%
Lifting this score
Healthcare Access
healthier than 88%
5%
Holding it back
Chronic Disease Burden
healthier than 12%
21%
Social Need / SDOH
healthier than 22%
16%
Environmental Hazard
healthier than 2%
14%
Preventive Care
in the bottom 0.7%
13%
Risk Behavior
healthier than 2%
11%
Mental Health
in the bottom 0.4%
8%
Disability
in the bottom 0.3%
7%
Climate / Disaster Risk
healthier than 32%
5%
Lifting this score
Climate / Disaster Risk
healthier than 72%
5%
About typical
Healthcare Access
healthier than 59%
5%
Holding it back
Chronic Disease Burden
healthier than 3%
21%
Social Need / SDOH
healthier than 3%
16%
Environmental Hazard
healthier than 21%
14%
Preventive Care
healthier than 7%
13%
Risk Behavior
healthier than 7%
11%
Mental Health
in the bottom 0.00%
8%
Disability
healthier than 3%
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
51054
Iowashares a border
Score 57.19
Closest healthier
51106
Iowashares a border
Score 52.35
Similar health profile
35951
Alabama99% similar profile
Score 40.08
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 | 27.8% | 25.2–30.6 |
| High blood pressure among adults | 36.4% | 33.3–39.6 |
| Cancer (non-skin) or melanoma among adults | 7.4% | 6.6–8.3 |
| Current asthma among adults | 11.5% | 10.2–13.0 |
| Coronary heart disease among adults | 8.2% | 7.0–9.5 |
| Chronic obstructive pulmonary disease among adults | 12.0% | 9.6–14.5 |
| Depression among adults | 23.7% | 20.6–27.0 |
| Diagnosed diabetes among adults | 14.7% | 12.6–16.9 |
| High cholesterol among adults who have ever been screened | 35.4% | 32.2–38.5 |
| Obesity among adults | 41.1% | 36.3–45.9 |
| Stroke among adults | 4.6% | 3.9–5.5 |
| All teeth lost among adults aged >=65 years | 21.1% | 17.2–25.3 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 16.0% | 12.2–20.5 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 77.0% | 74.9–78.9 |
| Visits to doctor for routine checkup within the past year among adults | 75.9% | 72.6–79.0 |
| Cholesterol screening among adults | 74.7% | 71.3–77.8 |
| Colorectal cancer screening among adults aged 45–75 years | 60.4% | 56.1–64.5 |
| Visited dentist or dental clinic in the past year among adults | 50.2% | 46.9–53.5 |
| Mammography use among women aged 50-74 years | 71.3% | 64.3–77.6 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 16.9% | 14.5–19.4 |
| Current cigarette smoking among adults | 21.1% | 17.2–25.1 |
| No leisure-time physical activity among adults | 39.0% | 33.5–44.9 |
| Short sleep duration among adults | 33.7% | 29.9–37.6 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 30.3% | 25.4–35.6 |
| Frequent mental distress among adults | 22.1% | 19.4–24.8 |
| Frequent physical distress among adults | 18.4% | 15.8–21.3 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 21.9% | 18.5–25.5 |
| Any disability among adults | 40.1% | 34.9–45.7 |
| Hearing disability among adults | 9.2% | 8.0–10.5 |
| Independent living disability among adults | 13.7% | 11.4–16.2 |
| Mobility disability among adults | 19.7% | 16.4–23.1 |
| Self-care disability among adults | 6.1% | 5.0–7.4 |
| Vision disability among adults | 9.0% | 7.5–10.6 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 28.2% | 24.4–32.4 |
| Food insecurity in the past 12 months among adults | 28.1% | 23.0–33.8 |
| Received food stamps in the past 12 months among adults | 27.7% | 22.4–33.3 |
| Housing insecurity in the past 12 months among adults | 17.8% | 14.9–20.9 |
| Lack of reliable transportation in the past 12 months among adults | 15.0% | 12.6–17.6 |
| Loneliness among adults | 38.3% | 33.6–43.1 |
| Utility services shut-off threat in the past 12 months among adults | 12.4% | 10.5–14.4 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | IA median (p10–p90) |
|---|---|---|---|
| Poverty rate | 0.0% | 10.6% (3.1–25.8%) n=32,364 | 8.5% (2.7–19.1%) n=931 |
| Uninsured 18–64 | 69.2% | 9.0% (1.5–24.3%) n=32,286 | 5.4% (0.7–14.7%) n=931 |
| No HS diploma (25+) | 0.0% | 7.9% (1.8–20.7%) n=32,505 | 5.1% (1.6–12.9%) n=932 |
| Bachelor's or higher (25+) | 0.0% | 23.3% (9.2–53.6%) n=32,505 | 20.9% (9.8–36.8%) n=932 |
| Unemployment rate (16+) | 0.0% | 3.9% (0.0–9.8%) n=32,274 | 2.2% (0.0–6.7%) n=932 |
| Households without a vehicle | 0.0% | 3.9% (0.0–12.5%) n=32,322 | 2.4% (0.0–7.9%) n=931 |
| Broadband subscription | 100.0% | 89.3% (75.1–97.1%) n=32,322 | 88.5% (77.9–95.1%) n=931 |
| Housing cost burden (≥30% income) | 0.0% | 23.7% (10.6–40.0%) n=32,322 | 18.2% (9.0–28.8%) n=931 |
| Homeownership rate | 0.0% | 78.7% (51.7–94.0%) n=32,322 | 82.1% (66.8–93.5%) n=931 |
| Crowded housing (>1 per room) | 0.0% | 1.3% (0.0–6.3%) n=32,322 | 0.4% (0.0–3.3%) n=931 |
| Foreign-born population | 0.0% | 2.6% (0.0–18.6%) n=32,553 | 1.0% (0.0–7.2%) n=932 |
| Single-parent households | 100.0% | 53.6% (37.3–74.1%) n=32,087 | 56.8% (43.7–75.5%) n=928 |
| Population 65+ | 0.0% | 19.4% (10.8–33.6%) n=32,553 | 20.2% (12.7–31.0%) n=932 |
| Median age | 26.4 yr | 42.2 yr (33.0–56.3) n=32,292 | 42.7 yr (34.1–54.7) n=931 |
| Median household income | — | $72,070 ($46,039–$118,707) n=30,318 | $73,848 ($55,055–$102,762) n=911 |
| Median home value | — | $222,200 ($100,300–$579,820) n=30,049 | $161,100 ($93,820–$278,170) n=892 |
| Median gross rent | — | $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 | 72.7 yr ± 2.23 | 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 2.23 years of 72.7, 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