ZIP code
94508
in Angwin, CaliforniaPopulation 3,495
59.70/ 100
Ranked #5,078 of 32,066 US ZIPs (top 16%)
Ranked #525 of 1,719 California ZIPs (top 31%)
Ranked #4 of 10 Napa, CA ZIPs (top 40%)
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.
Air-toxics cancer risk
51.4 per million
in the top 0.6% nationally
Lower is healthier
ST98thUS99thDefinition & source ›
The EPA’s modeled estimate of added lifetime cancer risk from breathing outdoor air toxics, in cases per million people exposed over a lifetime.
Full methodology ›Slow internet speeds
5.9%
in the top 2.1% nationally
Lower is healthier
ST95thUS98thDefinition & source ›
The share of homes whose fastest available download speed is under 10 Mbps.
Full methodology ›Obesity
25.7%
in the bottom 6.7% nationally
Lower is healthier
ST30thUS7thDefinition & source ›
The estimated share of adults with obesity, defined as a body-mass index of 30 or higher.
Full methodology ›Industrial-pollution burden
in the bottom 5.0% nationally
Lower is healthier
ST12thUS5thDefinition & source ›
The EPA’s modeled screening score for industrial chemical releases, weighting the amounts released by their toxicity and how many people live nearby — a relative comparison score, not a measured exposure.
Full methodology ›High blood pressure
26.9%
in the bottom 4.6% nationally
Lower is healthier
ST12thUS5thDefinition & source ›
The estimated share of adults who have been told by a health professional that they have high blood pressure.
Full methodology ›Child-care access
0.62 per 1,000 residents
in the top 6.8% nationally
Higher is healthier
ST96thUS93rdDefinition & source ›
The number of child day-care services 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 ›High cholesterol
31.3%
in the bottom 5.1% nationally
Lower is healthier
ST7thUS5thDefinition & source ›
The estimated share of adults with high cholesterol, among those who have ever been screened for it.
Full methodology ›Crowded housing
7.3%
in the top 8.0% 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 ›Floodplain exposure
0.28%
in the bottom 8.6% nationally
Lower is healthier
ST20thUS9thDefinition & 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 ›Diabetes
8.4%
in the bottom 5.7% nationally
Lower is healthier
ST7thUS6thDefinition & source ›
The estimated share of adults who have been diagnosed with diabetes.
Full methodology ›The read
On the composite measure, Angwin, California (ZIP 94508) stands in the top 16% healthiest ZIPs nationally (5,078th) and the top 31% of California (525th).
A balanced set of signals defines this area, not any single one: modeled obesity is in the bottom 6.7% nationally, and industrial-pollution burden registers in the bottom 5.0% nationally. Modeled high blood pressure lies in the bottom 4.6% nationally, and childcare is in the top 6.8% nationally. Modeled high cholesterol registers in the bottom 5.1% nationally. Households without a vehicle lies at the national minimum, shared with about 16% of ZIPs. Floodplain exposure is in the bottom 8.6% nationally. By contrast, modeled air-toxics cancer risk registers in the top 0.6% nationally, slow internet speeds lies in the top 2.1% nationally, and crowded housing is in the top 8.0% nationally.
Set beside the wider area around it, slow internet speeds runs far higher than the surrounding ZIPs on this measure. For clarity, air-toxics cancer risk is a modeled EPA estimate of added lifetime cancer risk from breathing outdoor air, per million people. Industrial-pollution burden is the EPA's modeled screening score weighting industrial chemical releases by their toxicity and how many people live nearby. Floodplain exposure is land with about a 1-in-100 chance of flooding each year, nicknamed the "100-year floodplain". ZIP 94574, just across the boundary, ranks better overall among the ZIPs nearby.
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 Napa, 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 94%
21%
Social Need / SDOH
healthier than 66%
16%
Risk Behavior
healthier than 87%
11%
Disability
healthier than 82%
7%
Climate / Disaster Risk
healthier than 71%
5%
About typical
Mental Health
healthier than 42%
8%
Holding it back
Environmental Hazard
healthier than 19%
14%
Preventive Care
healthier than 30%
13%
Healthcare Access
healthier than 35%
5%
Lifting this score
Chronic Disease Burden
healthier than 83%
21%
Social Need / SDOH
healthier than 61%
16%
Risk Behavior
healthier than 73%
11%
Disability
healthier than 77%
7%
About typical
Environmental Hazard
healthier than 50%
14%
Preventive Care
healthier than 53%
13%
Climate / Disaster Risk
healthier than 52%
5%
Holding it back
Mental Health
healthier than 32%
8%
Healthcare Access
healthier than 22%
5%
Lifting this score
Chronic Disease Burden
in the top 0.00%
21%
Disability
in the top 0.00%
7%
Climate / Disaster Risk
healthier than 89%
5%
About typical
Environmental Hazard
healthier than 44%
14%
Risk Behavior
healthier than 56%
11%
Holding it back
Social Need / SDOH
healthier than 11%
16%
Preventive Care
healthier than 22%
13%
Mental Health
in the bottom 0.00%
8%
Healthcare Access
healthier than 11%
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 19.1; chronic-disease standing 94.4 (top 10%) — 75 points apart, heavier on the environment than it is on chronic illness.
Ranked #16,861 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
94515
Californiashares a border
Score 56.44
Closest healthier
94574
Californiashares a border
Score 63.07
Similar health profile
98102
Washington98% similar profile
Score 68.75
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 | 19.6% | 17.2–22.3 |
| High blood pressure among adults | 26.9% | 23.6–30.4 |
| Cancer (non-skin) or melanoma among adults | 7.2% | 6.5–7.9 |
| Current asthma among adults | 10.1% | 8.9–11.5 |
| Coronary heart disease among adults | 4.9% | 4.4–5.5 |
| Chronic obstructive pulmonary disease among adults | 4.5% | 3.8–5.3 |
| Depression among adults | 23.1% | 19.7–26.8 |
| Diagnosed diabetes among adults | 8.4% | 7.2–9.7 |
| High cholesterol among adults who have ever been screened | 31.3% | 27.6–35.2 |
| Obesity among adults | 25.7% | 19.6–32.4 |
| Stroke among adults | 2.6% | 2.3–2.9 |
| All teeth lost among adults aged >=65 years | 7.6% | 6.1–9.4 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 7.0% | 5.6–8.8 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 70.2% | 67.2–73.3 |
| Visits to doctor for routine checkup within the past year among adults | 71.4% | 67.3–75.5 |
| Cholesterol screening among adults | 84.0% | 81.7–86.1 |
| Colorectal cancer screening among adults aged 45–75 years | 65.8% | 60.5–70.6 |
| Visited dentist or dental clinic in the past year among adults | 69.5% | 66.0–72.7 |
| Mammography use among women aged 50-74 years | 76.0% | 68.3–82.6 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 18.1% | 15.0–21.6 |
| Current cigarette smoking among adults | 8.7% | 7.1–10.4 |
| No leisure-time physical activity among adults | 18.7% | 15.2–22.6 |
| Short sleep duration among adults | 31.2% | 25.1–37.7 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 16.5% | 14.1–19.1 |
| Frequent mental distress among adults | 17.7% | 15.5–20.0 |
| Frequent physical distress among adults | 11.4% | 9.9–13.0 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 14.3% | 12.2–16.4 |
| Any disability among adults | 28.0% | 23.9–32.5 |
| Hearing disability among adults | 5.5% | 4.8–6.1 |
| Independent living disability among adults | 7.2% | 6.2–8.4 |
| Mobility disability among adults | 10.6% | 9.0–12.3 |
| Self-care disability among adults | 2.8% | 2.4–3.2 |
| Vision disability among adults | 4.0% | 3.5–4.6 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 25.2% | 21.4–29.4 |
| Food insecurity in the past 12 months among adults | 11.9% | 9.5–14.6 |
| Received food stamps in the past 12 months among adults | 9.6% | 7.7–11.6 |
| Housing insecurity in the past 12 months among adults | 10.7% | 8.8–12.7 |
| Lack of reliable transportation in the past 12 months among adults | 7.9% | 6.6–9.3 |
| Loneliness among adults | 35.6% | 30.3–41.1 |
| Utility services shut-off threat in the past 12 months among adults | 5.5% | 4.6–6.4 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | CA median (p10–p90) |
|---|---|---|---|
| Poverty rate | 11.8% | 10.6% (3.1–25.8%) n=32,364 | 10.6% (4.1–24.9%) n=1,714 |
| Uninsured 18–64 | 4.2% | 9.0% (1.5–24.3%) n=32,286 | 7.7% (1.7–17.9%) n=1,704 |
| No HS diploma (25+) | 6.7% | 7.9% (1.8–20.7%) n=32,505 | 9.8% (1.4–30.9%) n=1,729 |
| Bachelor's or higher (25+) | 54.9% | 23.3% (9.2–53.6%) n=32,505 | 31.3% (9.9–68.2%) n=1,729 |
| Unemployment rate (16+) | 6.4% | 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 | 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) | 29.5% | 23.7% (10.6–40.0%) n=32,322 | 38.6% (24.4–50.5%) n=1,708 |
| Homeownership rate | 61.9% | 78.7% (51.7–94.0%) n=32,322 | 64.1% (31.9–86.4%) n=1,708 |
| Crowded housing (>1 per room) | 7.3% | 1.3% (0.0–6.3%) n=32,322 | 4.8% (0.0–15.9%) n=1,708 |
| Foreign-born population | 14.7% | 2.6% (0.0–18.6%) n=32,553 | 18.9% (3.0–40.4%) n=1,730 |
| Single-parent households | 57.8% | 53.6% (37.3–74.1%) n=32,087 | 48.4% (35.1–72.3%) n=1,692 |
| Population 65+ | 16.4% | 19.4% (10.8–33.6%) n=32,553 | 17.0% (9.7–35.7%) n=1,730 |
| Median age | 32.5 yr | 42.2 yr (33.0–56.3) n=32,292 | 40.1 yr (31.8–57.0) n=1,712 |
| Median household income | $116,667 | $72,070 ($46,039–$118,707) n=30,318 | $93,448 ($54,188–$159,562) n=1,584 |
| Median home value | $775,600 | $222,200 ($100,300–$579,820) n=30,049 | $659,800 ($300,520–$1,493,340) n=1,593 |
| Median gross rent | $1,605 | $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 | 81.8 yr ± 1.08 | 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 1.08 years of 81.8, 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