ZIP code
94542
in Hayward, CaliforniaPopulation 14,871
63.17/ 100
Ranked #2,879 of 32,066 US ZIPs (top 9.0%)
Ranked #354 of 1,719 California ZIPs (top 21%)
Ranked #112 of 174 San Francisco-Oakland-Fremont, CA ZIPs (bottom 36%)
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.
Obesity
23.1%
in the bottom 3.1% nationally
Lower is healthier
ST17thUS3rdDefinition & source ›
The estimated share of adults with obesity, defined as a body-mass index of 30 or higher.
Full methodology ›Loneliness
39.9%
in the top 4.4% nationally
Lower is healthier
ST83rdUS96thDefinition & source ›
The estimated share of adults who report feeling lonely.
Full methodology ›Median household income
$133,734
in the top 6.3% nationally
Higher is healthier
ST81stUS94thDefinition & source ›
The middle household income in this ZIP — half of households earn more, half earn less — in dollars per year.
Full methodology ›High blood pressure
26.6%
in the bottom 4.2% nationally
Lower is healthier
ST10thUS4thDefinition & source ›
The estimated share of adults who have been told by a health professional that they have high blood pressure.
Full methodology ›Humid extreme heat
8.8 days/year
in the bottom 6.0% nationally
Lower is healthier
ST14thUS6thDefinition & source ›
The average number of days per year when modeled heat stress — temperature, humidity, sun, and wind combined — reaches levels hard on the body outdoors.
Full methodology ›Hearing disability
4.7%
in the bottom 4.5% nationally
Lower is healthier
ST9thUS4thDefinition & source ›
The estimated share of adults who are deaf or have serious difficulty hearing.
Full methodology ›Coronary heart disease
4.4%
in the bottom 5.1% nationally
Lower is healthier
ST11thUS5thDefinition & source ›
The estimated share of adults who have been told by a health professional that they have coronary heart disease or angina.
Full methodology ›Floodplain exposure
0.05%
in the bottom 7.1% nationally
Lower is healthier
ST15thUS7thDefinition & 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 ›High cholesterol
31.4%
in the bottom 5.3% nationally
Lower is healthier
ST8thUS5thDefinition & source ›
The estimated share of adults with high cholesterol, among those who have ever been screened for it.
Full methodology ›Crowded housing
7.1%
in the top 8.2% nationally
Lower is healthier
ST65thUS92ndDefinition & source ›
The share of occupied homes with more than one person per room, the Census definition of crowded housing.
Full methodology ›The read
ZIP 94542, one of several in Hayward, California, by its overall standing, sits in the top 9.0% healthiest ZIPs nationally (2,879th) and the top 21% of California (354th).
Both sides of the picture show up plainly in this area's numbers: modeled obesity resides in the bottom 3.1% nationally, household income rests in the top 6.3% nationally, and modeled high blood pressure lies in the bottom 4.2% nationally. Modeled humid heat sits in the bottom 6.0% nationally, hearing disability settles in the bottom 4.5% nationally, and coronary heart disease registers in the bottom 5.1% nationally. Floodplain exposure stands in the bottom 7.1% nationally, and modeled high cholesterol lands in the bottom 5.3% nationally. By contrast, modeled loneliness is in the top 4.4% nationally, and crowded housing resides in the top 8.2% nationally.
Held up against its neighbors, expected annual loss runs far lower than the surrounding ZIPs on this measure. Defined in plain terms, humid heat is a modeled heat-stress measure combining temperature, humidity, sun, and wind to gauge heat on the body outdoors. Floodplain exposure is land with about a 1-in-100 chance of flooding each year, nicknamed the "100-year floodplain". The nearest ZIP ranking healthier overall is ZIP 94552, just across the boundary. Looking wider, the ZIP also sits on the healthier half of the national range on at least seven of the ten good-life measures tracked here, from quiet and green space to nearby care, a combination reached by about one in twenty-five US ZIP codes.
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 San Francisco-Oakland-Fremont, CA metro area.
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 96%
21%
Social Need / SDOH
healthier than 66%
16%
Environmental Hazard
healthier than 63%
14%
Risk Behavior
healthier than 83%
11%
Mental Health
healthier than 70%
8%
Disability
healthier than 84%
7%
Climate / Disaster Risk
healthier than 94%
5%
Healthcare Access
healthier than 80%
5%
Holding it back
Preventive Care
healthier than 23%
13%
Lifting this score
Chronic Disease Burden
healthier than 90%
21%
Social Need / SDOH
healthier than 61%
16%
Environmental Hazard
healthier than 80%
14%
Risk Behavior
healthier than 66%
11%
Mental Health
healthier than 66%
8%
Disability
healthier than 79%
7%
Climate / Disaster Risk
healthier than 89%
5%
Healthcare Access
healthier than 60%
5%
About typical
Preventive Care
healthier than 45%
13%
Nothing measured is holding this score back.
Lifting this score
Chronic Disease Burden
healthier than 76%
21%
Environmental Hazard
healthier than 63%
14%
Climate / Disaster Risk
healthier than 82%
5%
About typical
Disability
healthier than 43%
7%
Healthcare Access
healthier than 47%
5%
Holding it back
Social Need / SDOH
healthier than 20%
16%
Preventive Care
healthier than 25%
13%
Risk Behavior
healthier than 35%
11%
Mental Health
healthier than 27%
8%
“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
94541
Californiashares a border
Score 56.38
Closest healthier
94552
Californiashares a border
Score 70.52
Similar health profile
92057
California99% similar profile
Score 59.01
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 | 17.9% | 16.0–20.0 |
| High blood pressure among adults | 26.6% | 23.9–29.5 |
| Cancer (non-skin) or melanoma among adults | 5.4% | 4.9–5.9 |
| Current asthma among adults | 9.4% | 8.3–10.6 |
| Coronary heart disease among adults | 4.4% | 4.0–4.9 |
| Chronic obstructive pulmonary disease among adults | 3.9% | 3.5–4.4 |
| Depression among adults | 19.9% | 17.4–22.8 |
| Diagnosed diabetes among adults | 10.1% | 8.9–11.4 |
| High cholesterol among adults who have ever been screened | 31.4% | 28.4–34.6 |
| Obesity among adults | 23.1% | 19.5–27.3 |
| Stroke among adults | 2.6% | 2.4–2.8 |
| All teeth lost among adults aged >=65 years | 7.9% | 6.3–9.6 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 7.7% | 6.5–9.1 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 69.1% | 65.9–72.1 |
| Visits to doctor for routine checkup within the past year among adults | 71.6% | 68.2–74.9 |
| Cholesterol screening among adults | 85.2% | 83.4–87.1 |
| Colorectal cancer screening among adults aged 45–75 years | 62.6% | 58.4–66.8 |
| Visited dentist or dental clinic in the past year among adults | 65.7% | 62.7–68.5 |
| Mammography use among women aged 50-74 years | 74.9% | 68.2–81.0 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 16.2% | 13.8–18.8 |
| Current cigarette smoking among adults | 9.1% | 7.8–10.4 |
| No leisure-time physical activity among adults | 20.2% | 17.4–23.4 |
| Short sleep duration among adults | 34.9% | 31.0–39.1 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 18.1% | 16.0–20.3 |
| Frequent mental distress among adults | 16.8% | 15.0–18.7 |
| Frequent physical distress among adults | 11.4% | 10.1–12.8 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 13.5% | 12.0–15.2 |
| Any disability among adults | 27.6% | 24.6–31.0 |
| Hearing disability among adults | 4.7% | 4.2–5.3 |
| Independent living disability among adults | 7.1% | 6.3–7.9 |
| Mobility disability among adults | 10.6% | 9.4–12.0 |
| Self-care disability among adults | 2.9% | 2.7–3.2 |
| Vision disability among adults | 4.5% | 4.1–4.9 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 28.4% | 25.1–32.0 |
| Food insecurity in the past 12 months among adults | 15.5% | 13.3–18.0 |
| Received food stamps in the past 12 months among adults | 12.9% | 11.1–14.9 |
| Housing insecurity in the past 12 months among adults | 13.0% | 11.2–14.9 |
| Lack of reliable transportation in the past 12 months among adults | 8.8% | 7.7–10.0 |
| Loneliness among adults | 39.9% | 35.8–44.3 |
| Utility services shut-off threat in the past 12 months among adults | 6.6% | 5.7–7.6 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | CA median (p10–p90) |
|---|---|---|---|
| Poverty rate | 7.6% | 10.6% (3.1–25.8%) n=32,364 | 10.6% (4.1–24.9%) n=1,714 |
| Uninsured 18–64 | 5.7% | 9.0% (1.5–24.3%) n=32,286 | 7.7% (1.7–17.9%) n=1,704 |
| No HS diploma (25+) | 12.6% | 7.9% (1.8–20.7%) n=32,505 | 9.8% (1.4–30.9%) n=1,729 |
| Bachelor's or higher (25+) | 48.6% | 23.3% (9.2–53.6%) n=32,505 | 31.3% (9.9–68.2%) n=1,729 |
| Unemployment rate (16+) | 8.2% | 3.9% (0.0–9.8%) n=32,274 | 6.1% (0.8–12.0%) n=1,714 |
| Households without a vehicle | 2.5% | 3.9% (0.0–12.5%) n=32,322 | 4.5% (0.0–12.2%) n=1,708 |
| Broadband subscription | 97.6% | 89.3% (75.1–97.1%) n=32,322 | 93.4% (82.1–98.4%) n=1,708 |
| Housing cost burden (≥30% income) | 40.4% | 23.7% (10.6–40.0%) n=32,322 | 38.6% (24.4–50.5%) n=1,708 |
| Homeownership rate | 72.6% | 78.7% (51.7–94.0%) n=32,322 | 64.1% (31.9–86.4%) n=1,708 |
| Crowded housing (>1 per room) | 7.1% | 1.3% (0.0–6.3%) n=32,322 | 4.8% (0.0–15.9%) n=1,708 |
| Foreign-born population | 35.8% | 2.6% (0.0–18.6%) n=32,553 | 18.9% (3.0–40.4%) n=1,730 |
| Single-parent households | 62.2% | 53.6% (37.3–74.1%) n=32,087 | 48.4% (35.1–72.3%) n=1,692 |
| Population 65+ | 17.2% | 19.4% (10.8–33.6%) n=32,553 | 17.0% (9.7–35.7%) n=1,730 |
| Median age | 43.1 yr | 42.2 yr (33.0–56.3) n=32,292 | 40.1 yr (31.8–57.0) n=1,712 |
| Median household income | $133,734 | $72,070 ($46,039–$118,707) n=30,318 | $93,448 ($54,188–$159,562) n=1,584 |
| Median home value | $1,148,000 | $222,200 ($100,300–$579,820) n=30,049 | $659,800 ($300,520–$1,493,340) n=1,593 |
| Median gross rent | $2,676 | $1,021 ($677–$1,912) n=25,670 | $1,912 ($1,113–$2,923) n=1,461 |
Life expectancyNCHS / RWJF USALEEP · model-based
| Measure | Value | US median (p10–p90) | CA median (p10–p90) |
|---|---|---|---|
| Life expectancy at birth | 80.7 yr ± 0.75 | 78.9 yr (74.7–82.8) n=31,308 | 80.5 yr (76.7–83.8) n=1,665 |
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 0.75 years of 80.7, 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