ZIP code
94534
in Fairfield, CaliforniaPopulation 41,203
61.19/ 100
Ranked #4,011 of 32,066 US ZIPs (top 12.6%)
Ranked #450 of 1,719 California ZIPs (top 26%)
Ranked #1 of 15 Vallejo, CA ZIPs (top 6.7%)
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.
Median household income
$140,198
in the top 5.2% nationally
Higher is healthier
ST84thUS95thDefinition & source ›
The middle household income in this ZIP — half of households earn more, half earn less — in dollars per year.
Full methodology ›Outer-floodplain exposure
6.3%
in the top 6.0% nationally
Lower is healthier
ST85thUS94thDefinition & source ›
The share of this ZIP’s land area inside FEMA’s 0.2%-annual-chance flood band — the “500-year” zone, a lower but real 1-in-500 yearly chance.
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 ›PFAS in drinking water
56.9%
in the top 9.4% nationally
Lower is healthier
ST91stUS91stDefinition & source ›
The modeled probability that PFAS “forever chemicals” would be detected in untreated groundwater in this area, the source private wells draw on.
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 ›Natural-disaster risk
in the top 9.9% nationally
Lower is healthier
ST61stUS90thDefinition & source ›
This area’s national rank on its single highest non-flood natural hazard — such as wildfire, tornado, or earthquake — in FEMA’s modeled National Risk Index; flooding is shown separately.
Full methodology ›Hearing disability
5.3%
in the bottom 9.0% nationally
Lower is healthier
ST22ndUS9thDefinition & source ›
The estimated share of adults who are deaf or have serious difficulty hearing.
Full methodology ›Tooth loss
6.9%
in the bottom 7.8% nationally
Lower is healthier
ST22ndUS8thDefinition & source ›
The estimated share of adults aged 65 and older who have lost all of their natural teeth.
Full methodology ›Mammography
80.3%
in the top 9.6% nationally
Higher is healthier
ST94thUS90thDefinition & source ›
The estimated share of women aged 50–74 who had a mammogram within the past two years.
Full methodology ›The read
ZIP 94534, one of several in Fairfield, California, in overall standing, comes out in the top 12.6% healthiest ZIPs nationally (4,011th) and the top 26% of California (450th).
The measures that most flatter this area set the tone for the rest: household income rests in the top 5.2% nationally, modeled hearing disability settles in the bottom 9.0% nationally, and modeled obesity lands in the bottom 12.2% nationally. Dental providers rests in the top 10.9% nationally. Distance to a community health center settles at the national minimum, shared with about 23% of ZIPs. Lead in tap water lands in the bottom 11.6% nationally, and modeled tooth loss rests in the bottom 7.8% nationally. Against that, outer-floodplain exposure settles in the top 6.0% nationally, and modeled pfas lands in the top 9.4% nationally. Modeled disaster risk rests in the top 9.9% nationally.
Set within its surrounding area, outer-floodplain exposure runs far higher than the surrounding ZIPs on this measure. Defined simply, for reference, pfas is the man-made "forever chemicals" that build up in the body and environment instead of breaking down; here a modeled estimate of the chance a private well contains them. Disaster risk is the area's national rank on its highest non-flood peril in FEMA's modeled Risk Index, like wildfire or quake. Lead in tap water is the EPA trigger, 15 parts per billion in tap samples, above which a water system must act on lead. The closest healthier ZIP overall is ZIP 94503, 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 Vallejo, 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%
Social Need / SDOH
healthier than 76%
16%
Risk Behavior
healthier than 84%
11%
Mental Health
healthier than 85%
8%
Disability
healthier than 86%
7%
Healthcare Access
healthier than 82%
5%
About typical
Preventive Care
healthier than 53%
13%
Holding it back
Environmental Hazard
healthier than 18%
14%
Climate / Disaster Risk
healthier than 28%
5%
Lifting this score
Chronic Disease Burden
healthier than 66%
21%
Social Need / SDOH
healthier than 70%
16%
Preventive Care
healthier than 73%
13%
Risk Behavior
healthier than 69%
11%
Mental Health
healthier than 84%
8%
Disability
healthier than 81%
7%
Healthcare Access
healthier than 62%
5%
About typical
Environmental Hazard
healthier than 48%
14%
Holding it back
Climate / Disaster Risk
healthier than 26%
5%
Lifting this score
Chronic Disease Burden
healthier than 86%
21%
Social Need / SDOH
healthier than 86%
16%
Preventive Care
healthier than 71%
13%
Risk Behavior
healthier than 79%
11%
Mental Health
healthier than 86%
8%
Disability
healthier than 93%
7%
Healthcare Access
healthier than 64%
5%
Holding it back
Environmental Hazard
healthier than 29%
14%
Climate / Disaster Risk
healthier than 36%
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
One of our published findings lists 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.
Heavy environment, light chronic burden
Where the environment and chronic illness point in opposite directions
Environmental-hazard standing 18.1; chronic-disease standing 88.4 — 70 points apart, heavier on the environment than it is on chronic illness.
Ranked #16,414 of the 18,187 ZIP codes this finding names, ordered by the gap from cleanest environment to heaviest chronic burden, highest first.
Nearby & similar ZIPs
Editorially selected — see how this ZIP compares to nearby and similar places.
Nearby
94503
Californiashares a border
Score 61.70
Closest healthier
94547
Californiaabout 8.4 mi away
Score 66.53
Similar health profile
77056
Texas99% similar profile
Score 66.87
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 | 21.7% | 19.2–24.4 |
| High blood pressure among adults | 31.6% | 28.2–35.3 |
| Cancer (non-skin) or melanoma among adults | 7.3% | 6.6–8.0 |
| Current asthma among adults | 9.8% | 8.7–11.0 |
| Coronary heart disease among adults | 5.2% | 4.7–5.7 |
| Chronic obstructive pulmonary disease among adults | 4.5% | 4.0–4.9 |
| Depression among adults | 18.9% | 16.2–21.9 |
| Diagnosed diabetes among adults | 10.8% | 9.4–12.2 |
| High cholesterol among adults who have ever been screened | 35.7% | 31.9–39.8 |
| Obesity among adults | 28.3% | 22.9–34.1 |
| Stroke among adults | 2.9% | 2.7–3.1 |
| All teeth lost among adults aged >=65 years | 6.9% | 5.5–8.6 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 6.0% | 5.1–6.9 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 72.2% | 68.8–75.3 |
| Visits to doctor for routine checkup within the past year among adults | 73.8% | 70.0–77.3 |
| Cholesterol screening among adults | 88.3% | 86.9–89.6 |
| Colorectal cancer screening among adults aged 45–75 years | 63.4% | 58.4–68.3 |
| Visited dentist or dental clinic in the past year among adults | 67.7% | 64.4–71.0 |
| Mammography use among women aged 50-74 years | 80.3% | 73.8–85.9 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 15.0% | 12.4–17.8 |
| Current cigarette smoking among adults | 9.5% | 8.2–10.9 |
| No leisure-time physical activity among adults | 21.1% | 17.8–24.6 |
| Short sleep duration among adults | 35.3% | 29.9–41.1 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 17.2% | 15.2–19.3 |
| Frequent mental distress among adults | 15.3% | 13.7–17.1 |
| Frequent physical distress among adults | 11.7% | 10.4–13.1 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 11.9% | 10.7–13.2 |
| Any disability among adults | 25.9% | 22.6–29.4 |
| Hearing disability among adults | 5.3% | 4.7–5.9 |
| Independent living disability among adults | 6.5% | 5.9–7.1 |
| Mobility disability among adults | 11.6% | 10.2–13.0 |
| Self-care disability among adults | 3.0% | 2.8–3.3 |
| Vision disability among adults | 4.1% | 3.7–4.4 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 26.9% | 23.4–30.6 |
| Food insecurity in the past 12 months among adults | 12.0% | 10.4–13.8 |
| Received food stamps in the past 12 months among adults | 10.0% | 8.8–11.4 |
| Housing insecurity in the past 12 months among adults | 10.7% | 9.2–12.2 |
| Lack of reliable transportation in the past 12 months among adults | 6.9% | 6.2–7.8 |
| Loneliness among adults | 34.9% | 30.2–39.7 |
| Utility services shut-off threat in the past 12 months among adults | 5.7% | 4.9–6.5 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | CA median (p10–p90) |
|---|---|---|---|
| Poverty rate | 6.4% | 10.6% (3.1–25.8%) n=32,364 | 10.6% (4.1–24.9%) n=1,714 |
| Uninsured 18–64 | 3.8% | 9.0% (1.5–24.3%) n=32,286 | 7.7% (1.7–17.9%) n=1,704 |
| No HS diploma (25+) | 5.7% | 7.9% (1.8–20.7%) n=32,505 | 9.8% (1.4–30.9%) n=1,729 |
| Bachelor's or higher (25+) | 40.6% | 23.3% (9.2–53.6%) n=32,505 | 31.3% (9.9–68.2%) n=1,729 |
| Unemployment rate (16+) | 4.6% | 3.9% (0.0–9.8%) n=32,274 | 6.1% (0.8–12.0%) n=1,714 |
| Households without a vehicle | 2.7% | 3.9% (0.0–12.5%) n=32,322 | 4.5% (0.0–12.2%) n=1,708 |
| Broadband subscription | 95.8% | 89.3% (75.1–97.1%) n=32,322 | 93.4% (82.1–98.4%) n=1,708 |
| Housing cost burden (≥30% income) | 35.1% | 23.7% (10.6–40.0%) n=32,322 | 38.6% (24.4–50.5%) n=1,708 |
| Homeownership rate | 77.7% | 78.7% (51.7–94.0%) n=32,322 | 64.1% (31.9–86.4%) n=1,708 |
| Crowded housing (>1 per room) | 3.0% | 1.3% (0.0–6.3%) n=32,322 | 4.8% (0.0–15.9%) n=1,708 |
| Foreign-born population | 18.9% | 2.6% (0.0–18.6%) n=32,553 | 18.9% (3.0–40.4%) n=1,730 |
| Single-parent households | 52.8% | 53.6% (37.3–74.1%) n=32,087 | 48.4% (35.1–72.3%) n=1,692 |
| Population 65+ | 18.8% | 19.4% (10.8–33.6%) n=32,553 | 17.0% (9.7–35.7%) n=1,730 |
| Median age | 41.5 yr | 42.2 yr (33.0–56.3) n=32,292 | 40.1 yr (31.8–57.0) n=1,712 |
| Median household income | $140,198 | $72,070 ($46,039–$118,707) n=30,318 | $93,448 ($54,188–$159,562) n=1,584 |
| Median home value | $744,500 | $222,200 ($100,300–$579,820) n=30,049 | $659,800 ($300,520–$1,493,340) n=1,593 |
| Median gross rent | $2,677 | $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 | 81.4 yr ± 0.64 | 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 0.64 years of 81.4, 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