ZIP code
94514
in Byron, CaliforniaPopulation 1,953
48.67/ 100
Ranked #18,111 of 32,066 US ZIPs (bottom 44%)
Ranked #1,162 of 1,719 California ZIPs (bottom 32%)
Ranked #168 of 174 San Francisco-Oakland-Fremont, CA ZIPs (bottom 3.5%)
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.
Fatal road crashes
102.4 per 100,000 residents per year
in the top 0.4% nationally
Lower is healthier
ST98thUS99thDefinition & 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 ›Unemployment rate
17.6%
in the top 2.6% nationally
Lower is healthier
ST96thUS97thDefinition & source ›
The share of the civilian labor force that is unemployed.
Full methodology ›Crowded housing
12.7%
in the top 3.1% nationally
Lower is healthier
ST84thUS97thDefinition & source ›
The share of occupied homes with more than one person per room, the Census definition of crowded housing.
Full methodology ›Housing-cost burden
47.4%
in the top 4.2% nationally
Lower is healthier
ST84thUS96thDefinition & source ›
The share of households spending 30% or more of their income on housing.
Full methodology ›Loud transportation noise
2.7%
in the top 4.5% nationally
Lower is healthier
ST72ndUS96thDefinition & source ›
The modeled share of residents exposed to average road, rail, and aviation noise at or above 65 decibels — around the volume of normal conversation.
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 ›Civic-institution access
0.8 per 1,000 residents
in the top 6.2% nationally
Higher is healthier
ST87thUS94thDefinition & source ›
The number of civic and social organizations 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 ›Outer-floodplain exposure
5.9%
in the top 6.4% 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 ›Nitrate in drinking water
0.54%
in the top 7.2% nationally
Lower is healthier
ST85thUS93rdDefinition & source ›
The modeled share of this area’s domestic-well groundwater at or above the federal nitrate limit of 10 milligrams 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 ›The read
Byron, California (ZIP 94514), on the composite measure, lands in the bottom 44% nationally (18,111th) and the bottom 32% of California (1,162nd).
What the numbers press hardest on defines much of the story here: fatal road crashes stands in the top 0.4% nationally, unemployment is in the top 2.6% nationally, and crowded housing rests in the top 3.1% nationally. Housing-cost burden sits in the top 4.2% nationally, modeled loud transportation noise registers in the top 4.5% nationally, and modeled tree cover lands at the national minimum. Outer-floodplain exposure resides in the top 6.4% nationally, and modeled nitrate lies in the top 7.2% nationally. On the encouraging side, civic settles in the top 6.2% nationally. Households without a vehicle stands at the national minimum, shared with about 16% of ZIPs.
Set against the neighboring ZIPs, fatal road crashes runs far higher than the surrounding ZIPs on this measure. In everyday language, nitrate is a groundwater compound from fertilizer, manure, and sewage, here a modeled estimate of the chance private-well levels exceed a benchmark. Loud transportation noise is the modeled share of an area exposed to road, rail, and air noise at or above 65 decibels, near conversation volume. Outer-floodplain exposure is land with a lower but real 1-in-500 chance of flooding each year, nicknamed the "500-year floodplain". A healthier neighbor overall sits at ZIP 94505, 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 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 76%
21%
About typical
Risk Behavior
healthier than 48%
11%
Mental Health
healthier than 40%
8%
Disability
healthier than 44%
7%
Holding it back
Social Need / SDOH
healthier than 19%
16%
Environmental Hazard
healthier than 33%
14%
Preventive Care
healthier than 12%
13%
Climate / Disaster Risk
healthier than 33%
5%
Healthcare Access
healthier than 35%
5%
Lifting this score
Environmental Hazard
healthier than 63%
14%
About typical
Chronic Disease Burden
healthier than 42%
21%
Disability
healthier than 42%
7%
Holding it back
Social Need / SDOH
healthier than 26%
16%
Preventive Care
healthier than 32%
13%
Risk Behavior
healthier than 26%
11%
Mental Health
healthier than 30%
8%
Climate / Disaster Risk
healthier than 29%
5%
Healthcare Access
healthier than 21%
5%
Nothing measured is lifting this score.
Holding it back
Chronic Disease Burden
healthier than 8%
21%
Social Need / SDOH
healthier than 5%
16%
Environmental Hazard
healthier than 28%
14%
Preventive Care
healthier than 13%
13%
Risk Behavior
healthier than 8%
11%
Mental Health
healthier than 5%
8%
Disability
healthier than 6%
7%
Climate / Disaster Risk
healthier than 15%
5%
Healthcare Access
healthier than 6%
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 ›
Nearby & similar ZIPs
Editorially selected — see how this ZIP compares to nearby and similar places.
Nearby
94505
Californiashares a border
Score 56.45
Closest healthier
94513
Californiashares a border
Score 59.16
Similar health profile
92407
California97% similar profile
Score 48.72
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 | 23.4% | 20.9–25.8 |
| High blood pressure among adults | 32.0% | 28.8–35.0 |
| Cancer (non-skin) or melanoma among adults | 7.0% | 6.4–7.8 |
| Current asthma among adults | 10.2% | 9.0–11.4 |
| Coronary heart disease among adults | 6.3% | 5.5–7.0 |
| Chronic obstructive pulmonary disease among adults | 6.2% | 5.3–7.2 |
| Depression among adults | 22.4% | 19.5–25.4 |
| Diagnosed diabetes among adults | 12.3% | 10.7–13.9 |
| High cholesterol among adults who have ever been screened | 35.8% | 32.5–39.1 |
| Obesity among adults | 33.7% | 28.7–38.8 |
| Stroke among adults | 3.4% | 3.0–3.8 |
| All teeth lost among adults aged >=65 years | 11.5% | 9.4–13.9 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 12.5% | 9.9–15.5 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 70.5% | 67.2–73.8 |
| Visits to doctor for routine checkup within the past year among adults | 69.9% | 66.3–73.4 |
| Cholesterol screening among adults | 85.1% | 83.0–87.1 |
| Colorectal cancer screening among adults aged 45–75 years | 60.8% | 56.5–65.1 |
| Visited dentist or dental clinic in the past year among adults | 61.7% | 58.5–64.9 |
| Mammography use among women aged 50-74 years | 71.6% | 64.4–78.2 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 17.0% | 14.5–19.9 |
| Current cigarette smoking among adults | 12.7% | 10.6–14.8 |
| No leisure-time physical activity among adults | 27.9% | 23.9–32.0 |
| Short sleep duration among adults | 36.3% | 31.6–40.9 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 24.1% | 21.0–27.4 |
| Frequent mental distress among adults | 18.4% | 16.4–20.6 |
| Frequent physical distress among adults | 15.3% | 13.5–17.2 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 16.2% | 14.1–18.3 |
| Any disability among adults | 32.8% | 29.0–36.9 |
| Hearing disability among adults | 6.6% | 5.8–7.4 |
| Independent living disability among adults | 9.2% | 7.9–10.4 |
| Mobility disability among adults | 15.0% | 12.9–17.2 |
| Self-care disability among adults | 4.5% | 3.9–5.1 |
| Vision disability among adults | 6.1% | 5.4–6.9 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 25.7% | 22.4–29.4 |
| Food insecurity in the past 12 months among adults | 18.6% | 15.4–22.1 |
| Received food stamps in the past 12 months among adults | 16.6% | 13.7–19.6 |
| Housing insecurity in the past 12 months among adults | 16.4% | 13.9–19.0 |
| Lack of reliable transportation in the past 12 months among adults | 10.2% | 8.7–11.7 |
| Loneliness among adults | 36.3% | 32.1–40.6 |
| Utility services shut-off threat in the past 12 months among adults | 8.4% | 7.1–9.7 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | CA median (p10–p90) |
|---|---|---|---|
| Poverty rate | 14.5% | 10.6% (3.1–25.8%) n=32,364 | 10.6% (4.1–24.9%) n=1,714 |
| Uninsured 18–64 | 5.9% | 9.0% (1.5–24.3%) n=32,286 | 7.7% (1.7–17.9%) n=1,704 |
| No HS diploma (25+) | 15.2% | 7.9% (1.8–20.7%) n=32,505 | 9.8% (1.4–30.9%) n=1,729 |
| Bachelor's or higher (25+) | 16.5% | 23.3% (9.2–53.6%) n=32,505 | 31.3% (9.9–68.2%) n=1,729 |
| Unemployment rate (16+) | 17.6% | 3.9% (0.0–9.8%) n=32,274 | 6.1% (0.8–12.0%) n=1,714 |
| Households without a vehicle | 0.0% | 3.9% (0.0–12.5%) n=32,322 | 4.5% (0.0–12.2%) n=1,708 |
| Broadband subscription | 86.8% | 89.3% (75.1–97.1%) n=32,322 | 93.4% (82.1–98.4%) n=1,708 |
| Housing cost burden (≥30% income) | 47.4% | 23.7% (10.6–40.0%) n=32,322 | 38.6% (24.4–50.5%) n=1,708 |
| Homeownership rate | 60.4% | 78.7% (51.7–94.0%) n=32,322 | 64.1% (31.9–86.4%) n=1,708 |
| Crowded housing (>1 per room) | 12.7% | 1.3% (0.0–6.3%) n=32,322 | 4.8% (0.0–15.9%) n=1,708 |
| Foreign-born population | 24.9% | 2.6% (0.0–18.6%) n=32,553 | 18.9% (3.0–40.4%) n=1,730 |
| Single-parent households | 60.5% | 53.6% (37.3–74.1%) n=32,087 | 48.4% (35.1–72.3%) n=1,692 |
| Population 65+ | 12.6% | 19.4% (10.8–33.6%) n=32,553 | 17.0% (9.7–35.7%) n=1,730 |
| Median age | 45.7 yr | 42.2 yr (33.0–56.3) n=32,292 | 40.1 yr (31.8–57.0) n=1,712 |
| Median household income | $76,511 | $72,070 ($46,039–$118,707) n=30,318 | $93,448 ($54,188–$159,562) n=1,584 |
| Median home value | $735,600 | $222,200 ($100,300–$579,820) n=30,049 | $659,800 ($300,520–$1,493,340) n=1,593 |
| Median gross rent | $2,652 | $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 | 79.2 yr ± 1.56 | 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 1.56 years of 79.2, 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