ZIP code
94561
in Oakley, CaliforniaPopulation 46,368
54.23/ 100
Ranked #10,405 of 32,066 US ZIPs (top 32%)
Ranked #821 of 1,719 California ZIPs (top 48%)
Ranked #156 of 174 San Francisco-Oakland-Fremont, CA ZIPs (bottom 10.4%)
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.
Subsidized affordable housing
723 units
in the top 2.6% nationally
Higher is healthier
ST93rdUS97thDefinition & source ›
The number of affordable rental units in this ZIP supported by the federal Low-Income Housing Tax Credit program.
Full methodology ›Median household income
$134,678
in the top 6.1% nationally
Higher is healthier
ST81stUS94thDefinition & source ›
The middle household income in this ZIP — half of households earn more, half earn less — in dollars per year.
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 ›Floodplain exposure
39.1%
in the top 6.5% nationally
Lower is healthier
ST95thUS94thDefinition & 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 ›Crowded housing
7.2%
in the top 8.1% 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 ›Arsenic in groundwater
17%
in the top 8.3% nationally
Lower is healthier
ST89thUS92ndDefinition & source ›
The modeled probability that untreated groundwater in this area — the source private wells draw on — exceeds the federal arsenic limit of 10 micrograms 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 ›Hearing disability
5.1%
in the bottom 7.2% nationally
Lower is healthier
ST17thUS7thDefinition & source ›
The estimated share of adults who are deaf or have serious difficulty hearing.
Full methodology ›Coronary heart disease
4.7%
in the bottom 7.0% nationally
Lower is healthier
ST15thUS7thDefinition & source ›
The estimated share of adults who have been told by a health professional that they have coronary heart disease or angina.
Full methodology ›Outer-floodplain exposure
4.0%
in the top 8.9% nationally
Lower is healthier
ST82ndUS91stDefinition & 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 ›High blood pressure
28.6%
in the bottom 7.3% nationally
Lower is healthier
ST21stUS7thDefinition & source ›
The estimated share of adults who have been told by a health professional that they have high blood pressure.
Full methodology ›The read
On balance, and by the composite measure, Oakley, California (ZIP 94561) ranks in the top 32% healthiest ZIPs nationally (10,405th) and the top 48% of California (821st).
The profile opens on a set of genuinely favorable readings: subsidized affordable housing resides in the top 2.6% nationally, and household income lands in the top 6.1% nationally. Modeled hearing disability registers in the bottom 7.2% nationally, and coronary heart disease sits in the bottom 7.0% nationally. Modeled high blood pressure rests in the bottom 7.3% nationally. On the other side, modeled tree cover is at the national minimum, floodplain exposure stands in the top 6.5% nationally, and crowded housing settles in the top 8.1% nationally. Modeled arsenic lies in the top 8.3% nationally, and outer-floodplain exposure resides in the top 8.9% nationally.
Compared with the ZIPs it borders, outer-floodplain exposure runs far higher than the surrounding ZIPs on this measure. In plainer terms, arsenic is a natural groundwater contaminant, here a modeled estimate of the chance private-well levels exceed a benchmark. Subsidized affordable housing is the main federal tax-credit program (HUD) funding affordable rental housing, counted as local units it supports. Floodplain exposure is land with about a 1-in-100 chance of flooding each year, nicknamed the "100-year floodplain". For a healthier nearby ZIP overall, look to ZIP 94513, 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 91%
21%
Social Need / SDOH
healthier than 65%
16%
Disability
healthier than 73%
7%
About typical
Risk Behavior
healthier than 54%
11%
Mental Health
healthier than 47%
8%
Healthcare Access
healthier than 59%
5%
Holding it back
Environmental Hazard
healthier than 35%
14%
Preventive Care
healthier than 15%
13%
Climate / Disaster Risk
healthier than 11%
5%
Lifting this score
Chronic Disease Burden
healthier than 73%
21%
Social Need / SDOH
healthier than 60%
16%
Environmental Hazard
healthier than 65%
14%
Disability
healthier than 67%
7%
Holding it back
Preventive Care
healthier than 37%
13%
Risk Behavior
healthier than 30%
11%
Mental Health
healthier than 38%
8%
Climate / Disaster Risk
healthier than 9%
5%
Healthcare Access
healthier than 38%
5%
Nothing measured is lifting this score.
About typical
Chronic Disease Burden
healthier than 47%
21%
Holding it back
Social Need / SDOH
healthier than 19%
16%
Environmental Hazard
healthier than 30%
14%
Preventive Care
healthier than 17%
13%
Risk Behavior
healthier than 9%
11%
Mental Health
healthier than 8%
8%
Disability
healthier than 23%
7%
Climate / Disaster Risk
healthier than 4%
5%
Healthcare Access
healthier than 18%
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 35.6; chronic-disease standing 91.1 (top 10%) — 56 points apart, heavier on the environment than it is on chronic illness.
Ranked #14,951 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
94509
Californiashares a border
Score 49.04
Closest healthier
94513
Californiashares a border
Score 59.16
Similar health profile
78664
Texas99% similar profile
Score 55.60
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 | 20.0% | 17.8–22.3 |
| High blood pressure among adults | 28.6% | 25.5–31.6 |
| Cancer (non-skin) or melanoma among adults | 5.7% | 5.2–6.3 |
| Current asthma among adults | 10.2% | 9.0–11.4 |
| Coronary heart disease among adults | 4.7% | 4.2–5.2 |
| Chronic obstructive pulmonary disease among adults | 4.7% | 4.2–5.3 |
| Depression among adults | 21.6% | 18.7–24.5 |
| Diagnosed diabetes among adults | 10.3% | 9.0–11.7 |
| High cholesterol among adults who have ever been screened | 33.1% | 29.8–36.4 |
| Obesity among adults | 31.1% | 26.3–36.0 |
| Stroke among adults | 2.8% | 2.5–2.9 |
| All teeth lost among adults aged >=65 years | 9.0% | 7.2–11.1 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 9.6% | 8.5–11.0 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 68.1% | 64.6–71.4 |
| Visits to doctor for routine checkup within the past year among adults | 69.3% | 65.6–72.9 |
| Cholesterol screening among adults | 85.1% | 83.3–86.8 |
| Colorectal cancer screening among adults aged 45–75 years | 60.6% | 55.9–65.1 |
| Visited dentist or dental clinic in the past year among adults | 63.8% | 60.5–67.0 |
| Mammography use among women aged 50-74 years | 74.9% | 67.8–81.1 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 17.4% | 14.7–20.4 |
| Current cigarette smoking among adults | 11.3% | 9.8–12.8 |
| No leisure-time physical activity among adults | 24.8% | 21.6–28.1 |
| Short sleep duration among adults | 37.4% | 32.7–42.3 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 20.0% | 17.8–22.1 |
| Frequent mental distress among adults | 18.2% | 16.3–20.2 |
| Frequent physical distress among adults | 13.0% | 11.6–14.5 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 14.7% | 13.2–16.3 |
| Any disability among adults | 28.5% | 25.3–31.6 |
| Hearing disability among adults | 5.1% | 4.5–5.7 |
| Independent living disability among adults | 7.9% | 7.1–8.7 |
| Mobility disability among adults | 12.0% | 10.6–13.3 |
| Self-care disability among adults | 3.5% | 3.2–3.8 |
| Vision disability among adults | 4.9% | 4.5–5.3 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 27.1% | 24.0–30.5 |
| Food insecurity in the past 12 months among adults | 16.1% | 14.1–18.3 |
| Received food stamps in the past 12 months among adults | 13.9% | 12.2–15.8 |
| Housing insecurity in the past 12 months among adults | 14.8% | 12.9–16.8 |
| Lack of reliable transportation in the past 12 months among adults | 9.1% | 8.1–10.2 |
| Loneliness among adults | 37.4% | 33.2–41.6 |
| Utility services shut-off threat in the past 12 months among adults | 7.5% | 6.5–8.5 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | CA median (p10–p90) |
|---|---|---|---|
| Poverty rate | 6.5% | 10.6% (3.1–25.8%) n=32,364 | 10.6% (4.1–24.9%) n=1,714 |
| Uninsured 18–64 | 6.0% | 9.0% (1.5–24.3%) n=32,286 | 7.7% (1.7–17.9%) n=1,704 |
| No HS diploma (25+) | 11.1% | 7.9% (1.8–20.7%) n=32,505 | 9.8% (1.4–30.9%) n=1,729 |
| Bachelor's or higher (25+) | 24.4% | 23.3% (9.2–53.6%) n=32,505 | 31.3% (9.9–68.2%) n=1,729 |
| Unemployment rate (16+) | 6.2% | 3.9% (0.0–9.8%) n=32,274 | 6.1% (0.8–12.0%) n=1,714 |
| Households without a vehicle | 3.9% | 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) | 37.6% | 23.7% (10.6–40.0%) n=32,322 | 38.6% (24.4–50.5%) n=1,708 |
| Homeownership rate | 77.9% | 78.7% (51.7–94.0%) n=32,322 | 64.1% (31.9–86.4%) n=1,708 |
| Crowded housing (>1 per room) | 7.2% | 1.3% (0.0–6.3%) n=32,322 | 4.8% (0.0–15.9%) n=1,708 |
| Foreign-born population | 18.0% | 2.6% (0.0–18.6%) n=32,553 | 18.9% (3.0–40.4%) n=1,730 |
| Single-parent households | 45.9% | 53.6% (37.3–74.1%) n=32,087 | 48.4% (35.1–72.3%) n=1,692 |
| Population 65+ | 11.5% | 19.4% (10.8–33.6%) n=32,553 | 17.0% (9.7–35.7%) n=1,730 |
| Median age | 36.4 yr | 42.2 yr (33.0–56.3) n=32,292 | 40.1 yr (31.8–57.0) n=1,712 |
| Median household income | $134,678 | $72,070 ($46,039–$118,707) n=30,318 | $93,448 ($54,188–$159,562) n=1,584 |
| Median home value | $659,800 | $222,200 ($100,300–$579,820) n=30,049 | $659,800 ($300,520–$1,493,340) n=1,593 |
| Median gross rent | $1,952 | $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 | 80.0 yr ± 0.87 | 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 0.87 years of 80.0, 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