ZIP code
94531
in Antioch, CaliforniaPopulation 46,387
57.25/ 100
Ranked #7,019 of 32,066 US ZIPs (top 22%)
Ranked #656 of 1,719 California ZIPs (top 38%)
Ranked #144 of 174 San Francisco-Oakland-Fremont, CA ZIPs (bottom 17%)
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.
Lithium in drinking water
78 µg/L
in the top 4.8% nationally
Lower is healthier
ST99thUS95thDefinition & 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 ›Tree cover
0.00%
at the national minimum
Higher is healthier
ST1stUS1stDefinition & source ›
The share of this ZIP’s land area covered by forest.
Full methodology ›Housing-cost burden
43%
in the top 7.0% nationally
Lower is healthier
ST71stUS93rdDefinition & source ›
The share of households spending 30% or more of their income on housing.
Full methodology ›Hearing disability
4.9%
in the bottom 5.7% nationally
Lower is healthier
ST12thUS6thDefinition & source ›
The estimated share of adults who are deaf or have serious difficulty hearing.
Full methodology ›Loneliness
38.1%
in the top 8.4% nationally
Lower is healthier
ST70thUS92ndDefinition & source ›
The estimated share of adults who report feeling lonely.
Full methodology ›Median household income
$120,927
in the top 9.3% nationally
Higher is healthier
ST73rdUS91stDefinition & source ›
The middle household income in this ZIP — half of households earn more, half earn less — in dollars per year.
Full methodology ›Coronary heart disease
4.9%
in the bottom 8.7% nationally
Lower is healthier
ST20thUS9thDefinition & source ›
The estimated share of adults who have been told by a health professional that they have coronary heart disease or angina.
Full methodology ›The read
In its overall standing, ZIP 94531, one of several in Antioch, California lands in the top 22% healthiest ZIPs nationally (7,019th) and the top 38% of California (656th).
This area's strengths are easy to pick out across the measures: modeled hearing disability settles in the bottom 5.7% nationally, household income is in the top 9.3% nationally, and modeled coronary heart disease sits in the bottom 8.7% nationally. Home broadband subscription lands in the top 10.7% nationally. Distance to a nursing home lies at the national minimum, shared with about 27% of ZIPs. Working the other way, lithium in drinking water stands in the top 4.8% nationally, and modeled tree cover rests at the national minimum. Housing-cost burden registers in the top 7.0% nationally, and modeled loneliness resides in the top 8.4% nationally. Modeled extreme heat settles in the top 13.1% nationally.
Against the wider neighborhood, outer-floodplain exposure runs far lower than the surrounding ZIPs on this measure. Put simply, lithium in drinking water is a natural metal that dissolves into some groundwater and has no federal drinking-water limit yet. Extreme heat is a modeled count of days a year reaching a dangerously high temperature, a leading weather hazard. On the overall standing, ZIP 94513, 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. 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 88%
21%
Environmental Hazard
healthier than 60%
14%
Risk Behavior
healthier than 63%
11%
Mental Health
healthier than 70%
8%
Disability
healthier than 70%
7%
Healthcare Access
healthier than 70%
5%
About typical
Social Need / SDOH
healthier than 44%
16%
Climate / Disaster Risk
healthier than 57%
5%
Holding it back
Preventive Care
healthier than 22%
13%
Lifting this score
Chronic Disease Burden
healthier than 65%
21%
Environmental Hazard
healthier than 79%
14%
Mental Health
healthier than 66%
8%
Disability
healthier than 65%
7%
About typical
Social Need / SDOH
healthier than 45%
16%
Preventive Care
healthier than 45%
13%
Climate / Disaster Risk
healthier than 43%
5%
Healthcare Access
healthier than 47%
5%
Holding it back
Risk Behavior
healthier than 38%
11%
Nothing measured is lifting this score.
About typical
Environmental Hazard
healthier than 58%
14%
Holding it back
Chronic Disease Burden
healthier than 36%
21%
Social Need / SDOH
healthier than 12%
16%
Preventive Care
healthier than 23%
13%
Risk Behavior
healthier than 14%
11%
Mental Health
healthier than 27%
8%
Disability
healthier than 21%
7%
Climate / Disaster Risk
healthier than 27%
5%
Healthcare Access
healthier than 28%
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
2 of our published findings list 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.
Below what income predicts
The ZIP codes that outlive their incomes
Estimated life expectancy is 78.6 ± 1.3 years. A median household income of $120,927 predicts 80.8 years — 2.2 years below.
Ranked #2,975 of the 5,842 ZIP codes this finding names, ordered by years above what income predicts, highest first.
Below its nearby ZIPs
The ZIP codes that outlive their neighbors
Estimated life expectancy is 78.6 ± 1.3 years. The 48 nearest ZIP codes with estimates average 81.3 years — 2.6 years below them.
Ranked #2,053 of the 3,687 ZIP codes this finding names, ordered by years above the nearby-ZIP average, highest first.
Nearby & similar ZIPs
Editorially selected — see how this ZIP compares to nearby and similar places.
Nearby
94509
Californiashares a border
Score 49.04
Closest healthier
94513
Californiashares a border
Score 59.16
Similar health profile
91913
California98% similar profile
Score 66.14
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 | 20.2% | 18.0–22.5 |
| High blood pressure among adults | 31.3% | 28.2–34.4 |
| Cancer (non-skin) or melanoma among adults | 5.2% | 4.7–5.7 |
| Current asthma among adults | 10.2% | 9.0–11.4 |
| Coronary heart disease among adults | 4.9% | 4.4–5.5 |
| Chronic obstructive pulmonary disease among adults | 4.6% | 4.1–5.2 |
| Depression among adults | 19.2% | 16.6–21.9 |
| Diagnosed diabetes among adults | 12.1% | 10.6–13.6 |
| High cholesterol among adults who have ever been screened | 34.1% | 30.7–37.5 |
| Obesity among adults | 30.8% | 26.1–35.6 |
| Stroke among adults | 3.1% | 2.9–3.3 |
| All teeth lost among adults aged >=65 years | 9.7% | 7.9–11.9 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 8.5% | 7.4–9.8 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 71.1% | 67.8–74.1 |
| Visits to doctor for routine checkup within the past year among adults | 71.8% | 68.3–75.2 |
| Cholesterol screening among adults | 85.8% | 84.2–87.4 |
| Colorectal cancer screening among adults aged 45–75 years | 60.4% | 55.7–65.0 |
| Visited dentist or dental clinic in the past year among adults | 63.0% | 59.7–66.2 |
| Mammography use among women aged 50-74 years | 75.6% | 68.9–81.6 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 14.9% | 12.5–17.5 |
| Current cigarette smoking among adults | 10.6% | 9.1–12.1 |
| No leisure-time physical activity among adults | 26.1% | 22.6–29.5 |
| Short sleep duration among adults | 39.1% | 34.3–44.0 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 20.7% | 18.4–23.0 |
| Frequent mental distress among adults | 17.3% | 15.4–19.1 |
| Frequent physical distress among adults | 12.7% | 11.3–14.1 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 14.0% | 12.5–15.5 |
| Any disability among adults | 28.5% | 25.2–31.7 |
| Hearing disability among adults | 4.9% | 4.4–5.5 |
| Independent living disability among adults | 8.0% | 7.2–8.9 |
| Mobility disability among adults | 12.8% | 11.3–14.4 |
| Self-care disability among adults | 3.8% | 3.5–4.1 |
| Vision disability among adults | 5.3% | 4.9–5.8 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 28.9% | 25.6–32.5 |
| Food insecurity in the past 12 months among adults | 17.9% | 15.6–20.4 |
| Received food stamps in the past 12 months among adults | 15.8% | 13.9–17.8 |
| Housing insecurity in the past 12 months among adults | 15.6% | 13.7–17.7 |
| Lack of reliable transportation in the past 12 months among adults | 9.9% | 8.8–11.1 |
| Loneliness among adults | 38.1% | 34.0–42.4 |
| Utility services shut-off threat in the past 12 months among adults | 8.3% | 7.3–9.5 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | CA median (p10–p90) |
|---|---|---|---|
| Poverty rate | 8.3% | 10.6% (3.1–25.8%) n=32,364 | 10.6% (4.1–24.9%) n=1,714 |
| Uninsured 18–64 | 5.6% | 9.0% (1.5–24.3%) n=32,286 | 7.7% (1.7–17.9%) n=1,704 |
| No HS diploma (25+) | 9.8% | 7.9% (1.8–20.7%) n=32,505 | 9.8% (1.4–30.9%) n=1,729 |
| Bachelor's or higher (25+) | 32.3% | 23.3% (9.2–53.6%) n=32,505 | 31.3% (9.9–68.2%) n=1,729 |
| Unemployment rate (16+) | 7.2% | 3.9% (0.0–9.8%) n=32,274 | 6.1% (0.8–12.0%) n=1,714 |
| Households without a vehicle | 2.8% | 3.9% (0.0–12.5%) n=32,322 | 4.5% (0.0–12.2%) n=1,708 |
| Broadband subscription | 96.9% | 89.3% (75.1–97.1%) n=32,322 | 93.4% (82.1–98.4%) n=1,708 |
| Housing cost burden (≥30% income) | 43.0% | 23.7% (10.6–40.0%) n=32,322 | 38.6% (24.4–50.5%) n=1,708 |
| Homeownership rate | 73.2% | 78.7% (51.7–94.0%) n=32,322 | 64.1% (31.9–86.4%) n=1,708 |
| Crowded housing (>1 per room) | 3.8% | 1.3% (0.0–6.3%) n=32,322 | 4.8% (0.0–15.9%) n=1,708 |
| Foreign-born population | 24.4% | 2.6% (0.0–18.6%) n=32,553 | 18.9% (3.0–40.4%) n=1,730 |
| Single-parent households | 44.6% | 53.6% (37.3–74.1%) n=32,087 | 48.4% (35.1–72.3%) n=1,692 |
| Population 65+ | 12.8% | 19.4% (10.8–33.6%) n=32,553 | 17.0% (9.7–35.7%) n=1,730 |
| Median age | 38.8 yr | 42.2 yr (33.0–56.3) n=32,292 | 40.1 yr (31.8–57.0) n=1,712 |
| Median household income | $120,927 | $72,070 ($46,039–$118,707) n=30,318 | $93,448 ($54,188–$159,562) n=1,584 |
| Median home value | $701,600 | $222,200 ($100,300–$579,820) n=30,049 | $659,800 ($300,520–$1,493,340) n=1,593 |
| Median gross rent | $3,150 | $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 | 78.6 yr ± 0.66 | 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 0.66 years of 78.6, 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