ZIP code
94964
in San Quentin, CaliforniaPopulation 2,344
55.07/ 100
Ranked #9,366 of 32,066 US ZIPs (top 29%)
Ranked #770 of 1,719 California ZIPs (top 45%)
Ranked #152 of 174 San Francisco-Oakland-Fremont, CA ZIPs (bottom 12.7%)
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.
Housing-cost burden
55.4%
in the top 1.8% nationally
Lower is healthier
ST95thUS98thDefinition & source ›
The share of households spending 30% or more of their income on housing.
Full methodology ›Home broadband subscription
100%
at the national maximum
Higher is healthier
ST99thUS99thDefinition & source ›
The share of households with a broadband internet subscription.
Full methodology ›Humid extreme heat
5.4 days/year
in the bottom 3.3% nationally
Lower is healthier
ST8thUS3rdDefinition & 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 ›Lead in tap water
0 ppb
at the national minimum
Lower is healthier
US1stDefinition & source ›
The lead level at the 90th percentile of tap-water samples reported by the public water systems serving this ZIP, in parts per billion — the EPA requires action above 15 ppb.
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 ›Binge drinking
20.2%
in the top 5.5% nationally
Lower is healthier
ST97thUS95thDefinition & source ›
The estimated share of adults who report binge drinking — five or more drinks on one occasion for men, four or more for women.
Full methodology ›Floodplain exposure
38.8%
in the top 6.6% nationally
Lower is healthier
ST94thUS93rdDefinition & 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 ›Homeownership rate
44.6%
in the bottom 6.7% nationally
Higher is healthier
ST21stUS7thDefinition & source ›
The share of occupied homes that are owned, rather than rented, by the people living in them.
Full methodology ›Hearing disability
5.2%
in the bottom 8.1% nationally
Lower is healthier
ST19thUS8thDefinition & source ›
The estimated share of adults who are deaf or have serious difficulty hearing.
Full methodology ›Radon
0.7 pCi/L
in the bottom 4.6% nationally
Lower is healthier
ST3rdUS5thDefinition & source ›
The modeled typical indoor radon level for this area, in picocuries per liter — the EPA recommends fixing a home at 4 pCi/L or above.
Modeled from indoor-radon measurements. In Alaska and Hawaii, where those measurements are not published, a US Geological Survey geologic radon-potential category stands in — a coarser input, disclosed rather than hidden.
Full methodology ›Short sleep
40.9%
in the top 13.1% nationally
Lower is healthier
ST95thUS87thDefinition & source ›
The estimated share of adults who usually sleep less than seven hours in a 24-hour period.
Full methodology ›The read
Judged by its overall standing, San Quentin, California (ZIP 94964) sits in the top 29% healthiest ZIPs nationally (9,366th) and the top 45% of California (770th).
A balanced showing across the data, with a few readings each side: home broadband subscription resides at the national maximum, modeled humid heat sits in the bottom 3.3% nationally, and lead in tap water stands at the national minimum. Unemployment resides at the national minimum, shared with about 15% of ZIPs. Households without a vehicle sits at the national minimum, shared with about 16% of ZIPs. Modeled hearing disability stands in the bottom 8.1% nationally. On the other hand, housing-cost burden resides in the top 1.8% nationally, and modeled binge drinking sits in the top 5.5% nationally. Floodplain exposure stands in the top 6.6% nationally, and homeownership resides in the bottom 6.7% nationally.
Placed beside its immediate neighbors, park land runs far lower than the surrounding ZIPs on this measure. Put plainly, lead in tap water is the EPA trigger, 15 parts per billion in tap samples, above which a water system must act on lead. 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". A healthier nearby ZIP overall is ZIP 94901, 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 90%
21%
Environmental Hazard
healthier than 91%
14%
Mental Health
healthier than 92%
8%
Disability
healthier than 77%
7%
Healthcare Access
healthier than 70%
5%
Holding it back
Social Need / SDOH
healthier than 14%
16%
Preventive Care
healthier than 10%
13%
Risk Behavior
healthier than 22%
11%
Climate / Disaster Risk
healthier than 25%
5%
Lifting this score
Chronic Disease Burden
healthier than 69%
21%
Environmental Hazard
healthier than 93%
14%
Mental Health
healthier than 93%
8%
Disability
healthier than 73%
7%
About typical
Healthcare Access
healthier than 47%
5%
Holding it back
Social Need / SDOH
healthier than 20%
16%
Preventive Care
healthier than 29%
13%
Risk Behavior
healthier than 10%
11%
Climate / Disaster Risk
healthier than 24%
5%
Lifting this score
Environmental Hazard
healthier than 87%
14%
Mental Health
healthier than 78%
8%
About typical
Chronic Disease Burden
healthier than 40%
21%
Holding it back
Social Need / SDOH
healthier than 2%
16%
Preventive Care
healthier than 11%
13%
Risk Behavior
healthier than 2%
11%
Disability
healthier than 30%
7%
Climate / Disaster Risk
healthier than 12%
5%
Healthcare Access
healthier than 29%
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
94901
Californiashares a border
Score 59.76
Closest healthier
94925
Californiashares a border
Score 68.66
Similar health profile
32831
Florida96% similar profile
Score 58.47
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 | 18.1% | 15.6–20.8 |
| High blood pressure among adults | 35.5% | 31.5–39.6 |
| Cancer (non-skin) or melanoma among adults | 5.2% | 4.7–5.8 |
| Current asthma among adults | 8.2% | 7.2–9.3 |
| Coronary heart disease among adults | 5.9% | 5.2–6.6 |
| Chronic obstructive pulmonary disease among adults | 4.7% | 3.9–5.4 |
| Depression among adults | 15.3% | 12.8–18.1 |
| Diagnosed diabetes among adults | 12.1% | 10.5–13.9 |
| High cholesterol among adults who have ever been screened | 33.1% | 29.1–37.3 |
| Obesity among adults | 28.0% | 21.9–34.7 |
| Stroke among adults | 3.3% | 2.9–3.7 |
| All teeth lost among adults aged >=65 years | 14.5% | 11.7–17.6 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 10.7% | 8.6–13.0 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 68.1% | 64.1–71.7 |
| Visits to doctor for routine checkup within the past year among adults | 66.7% | 61.9–70.8 |
| Cholesterol screening among adults | 84.5% | 82.2–86.6 |
| Colorectal cancer screening among adults aged 45–75 years | 60.0% | 54.9–64.8 |
| Visited dentist or dental clinic in the past year among adults | 56.0% | 52.0–59.7 |
| Mammography use among women aged 50-74 years | 76.3% | 68.5–82.5 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 20.2% | 16.7–23.9 |
| Current cigarette smoking among adults | 14.2% | 11.8–16.7 |
| No leisure-time physical activity among adults | 21.7% | 17.9–26.0 |
| Short sleep duration among adults | 40.9% | 34.4–47.1 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 21.9% | 18.6–25.4 |
| Frequent mental distress among adults | 15.7% | 13.8–17.6 |
| Frequent physical distress among adults | 12.7% | 11.0–14.4 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 13.9% | 12.0–16.0 |
| Any disability among adults | 29.4% | 25.0–33.9 |
| Hearing disability among adults | 5.2% | 4.6–5.9 |
| Independent living disability among adults | 6.4% | 5.5–7.4 |
| Mobility disability among adults | 11.8% | 10.0–13.8 |
| Self-care disability among adults | 3.9% | 3.4–4.5 |
| Vision disability among adults | 4.7% | 4.1–5.4 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 35.4% | 31.2–39.8 |
| Food insecurity in the past 12 months among adults | 16.7% | 13.8–20.1 |
| Received food stamps in the past 12 months among adults | 13.3% | 10.9–16.1 |
| Housing insecurity in the past 12 months among adults | 16.5% | 14.0–19.1 |
| Lack of reliable transportation in the past 12 months among adults | 9.3% | 8.0–10.8 |
| Loneliness among adults | 34.4% | 29.6–39.2 |
| Utility services shut-off threat in the past 12 months among adults | 8.5% | 7.3–9.8 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | CA median (p10–p90) |
|---|---|---|---|
| Poverty rate | 18.3% | 10.6% (3.1–25.8%) n=32,364 | 10.6% (4.1–24.9%) n=1,714 |
| Uninsured 18–64 | 0.0% | 9.0% (1.5–24.3%) n=32,286 | 7.7% (1.7–17.9%) n=1,704 |
| No HS diploma (25+) | 23.6% | 7.9% (1.8–20.7%) n=32,505 | 9.8% (1.4–30.9%) n=1,729 |
| Bachelor's or higher (25+) | 7.0% | 23.3% (9.2–53.6%) n=32,505 | 31.3% (9.9–68.2%) n=1,729 |
| Unemployment rate (16+) | 0.0% | 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 | 100.0% | 89.3% (75.1–97.1%) n=32,322 | 93.4% (82.1–98.4%) n=1,708 |
| Housing cost burden (≥30% income) | 55.4% | 23.7% (10.6–40.0%) n=32,322 | 38.6% (24.4–50.5%) n=1,708 |
| Homeownership rate | 44.6% | 78.7% (51.7–94.0%) n=32,322 | 64.1% (31.9–86.4%) n=1,708 |
| Crowded housing (>1 per room) | 0.0% | 1.3% (0.0–6.3%) n=32,322 | 4.8% (0.0–15.9%) n=1,708 |
| Foreign-born population | 21.3% | 2.6% (0.0–18.6%) n=32,553 | 18.9% (3.0–40.4%) n=1,730 |
| Single-parent households | 0.0% | 53.6% (37.3–74.1%) n=32,087 | 48.4% (35.1–72.3%) n=1,692 |
| Population 65+ | 24.1% | 19.4% (10.8–33.6%) n=32,553 | 17.0% (9.7–35.7%) n=1,730 |
| Median age | 49.2 yr | 42.2 yr (33.0–56.3) n=32,292 | 40.1 yr (31.8–57.0) n=1,712 |
| Median household income | $115,192 | $72,070 ($46,039–$118,707) n=30,318 | $93,448 ($54,188–$159,562) n=1,584 |
| Median home value | — | $222,200 ($100,300–$579,820) n=30,049 | $659,800 ($300,520–$1,493,340) n=1,593 |
| Median gross rent | — | $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 | 80.4 yr ± 0.71 | 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 0.71 years of 80.4, 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