ZIP code
91001
in Altadena, CaliforniaPopulation 35,475
63.87/ 100
Ranked #2,522 of 32,066 US ZIPs (top 7.9%)
Ranked #315 of 1,719 California ZIPs (top 18%)
Ranked #109 of 371 Los Angeles-Long Beach-Anaheim, CA ZIPs (top 29%)
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.
Distance to a Superfund site
In this ZIP
at the national minimum
Higher is healthier
ST1stUS1stDefinition & source ›
The distance in miles from this ZIP’s edge to the nearest Superfund site — an abandoned or uncontrolled hazardous-waste site the EPA has listed for cleanup.
Full methodology ›Floodplain exposure
0.00%
at the national minimum
Lower is healthier
ST1stUS1stDefinition & 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 ›Median household income
$134,903
in the top 6.0% 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 ›Natural-disaster risk
in the top 4.7% nationally
Lower is healthier
ST80thUS95thDefinition & 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 ›Obesity
25.8%
in the bottom 6.8% nationally
Lower is healthier
ST31stUS7thDefinition & source ›
The estimated share of adults with obesity, defined as a body-mass index of 30 or higher.
Full methodology ›Fatal road crashes
1.4 per 100,000 residents per year
in the bottom 5.3% nationally
Lower is healthier
ST4thUS5thDefinition & 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 ›Expected annual disaster loss
$0
in the top 7.1% nationally
Lower is healthier
ST72ndUS93rdDefinition & source ›
FEMA’s modeled estimate, in dollars per year, of the average harm to people expected from natural hazards — an annualized average, not a forecast for any single year.
Full methodology ›Housing-cost burden
41%
in the top 9.0% nationally
Lower is healthier
ST63rdUS91stDefinition & source ›
The share of households spending 30% or more of their income on housing.
Full methodology ›Lead in tap water
0.0000047 ppb
in the bottom 9.2% nationally
Lower is healthier
US9thDefinition & 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 ›Park land
13.7%
in the top 9.5% nationally
Higher is healthier
ST74thUS91stDefinition & source ›
The share of this ZIP’s land area that is public parkland.
Full methodology ›The read
Overall, Altadena, California (ZIP 91001) lands in the top 7.9% healthiest ZIPs nationally (2,522nd) and the top 18% of California (315th).
A number of measures pull each way for this area: floodplain exposure resides at the national minimum, and household income registers in the top 6.0% nationally. Modeled obesity rests in the bottom 6.8% nationally, and fatal road crashes stands in the bottom 5.3% nationally. Lead in tap water lies in the bottom 9.2% nationally, and park land lands in the top 9.5% nationally. Set against that, distance to a Superfund site sits at the national minimum, modeled disaster risk is in the top 4.7% nationally, and modeled expected annual loss settles in the top 7.1% nationally. Housing-cost burden resides in the top 9.0% nationally.
Set beside the nearby areas, park land runs far higher than the surrounding ZIPs on this measure. A note on the terms: distance to a Superfund site is an abandoned or uncontrolled hazardous-waste site the EPA has identified for cleanup. Disaster risk is the area's national rank on its highest non-flood peril in FEMA's modeled Risk Index, like wildfire or quake. Expected annual loss is FEMA's modeled estimate, in dollars, of average yearly harm to people from natural hazards. For a healthier nearby comparison, ZIP 91011, just across the boundary, ranks better overall.
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 Los Angeles-Long Beach-Anaheim, 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 86%
21%
Social Need / SDOH
healthier than 75%
16%
Preventive Care
healthier than 70%
13%
Risk Behavior
healthier than 90%
11%
Mental Health
healthier than 89%
8%
Disability
healthier than 79%
7%
Climate / Disaster Risk
healthier than 79%
5%
Healthcare Access
healthier than 83%
5%
About typical
Environmental Hazard
healthier than 45%
14%
Nothing measured is holding this score back.
Lifting this score
Social Need / SDOH
healthier than 69%
16%
Environmental Hazard
healthier than 71%
14%
Preventive Care
healthier than 85%
13%
Risk Behavior
healthier than 78%
11%
Mental Health
healthier than 89%
8%
Disability
healthier than 74%
7%
Healthcare Access
healthier than 65%
5%
About typical
Chronic Disease Burden
healthier than 59%
21%
Climate / Disaster Risk
healthier than 59%
5%
Nothing measured is holding this score back.
Lifting this score
Social Need / SDOH
healthier than 63%
16%
Environmental Hazard
healthier than 90%
14%
Preventive Care
healthier than 88%
13%
Risk Behavior
healthier than 75%
11%
Mental Health
healthier than 82%
8%
Disability
healthier than 63%
7%
Holding it back
Chronic Disease Burden
healthier than 23%
21%
Climate / Disaster Risk
healthier than 36%
5%
Healthcare Access
healthier than 38%
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
91011
Californiashares a border
Score 72.85
Closest healthier
91107
Californiashares a border
Score 66.79
Similar health profile
91902
California99% similar profile
Score 65.50
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 | 22.9% | 21.1–24.6 |
| High blood pressure among adults | 32.6% | 30.5–34.8 |
| Cancer (non-skin) or melanoma among adults | 7.8% | 7.1–8.4 |
| Current asthma among adults | 9.6% | 8.6–10.5 |
| Coronary heart disease among adults | 5.2% | 4.8–5.7 |
| Chronic obstructive pulmonary disease among adults | 4.4% | 4.0–5.0 |
| Depression among adults | 18.8% | 17.0–20.6 |
| Diagnosed diabetes among adults | 11.5% | 10.4–12.6 |
| High cholesterol among adults who have ever been screened | 38.1% | 35.7–40.5 |
| Obesity among adults | 25.8% | 23.0–28.4 |
| Stroke among adults | 3.3% | 3.0–3.5 |
| All teeth lost among adults aged >=65 years | 6.1% | 5.0–7.4 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 6.7% | 5.8–7.7 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 75.6% | 73.2–77.8 |
| Visits to doctor for routine checkup within the past year among adults | 76.1% | 74.0–78.1 |
| Cholesterol screening among adults | 89.6% | 88.4–90.6 |
| Colorectal cancer screening among adults aged 45–75 years | 64.0% | 60.7–67.0 |
| Visited dentist or dental clinic in the past year among adults | 70.1% | 67.9–72.2 |
| Mammography use among women aged 50-74 years | 80.3% | 75.8–84.0 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 15.0% | 13.4–16.7 |
| Current cigarette smoking among adults | 8.7% | 7.6–9.8 |
| No leisure-time physical activity among adults | 19.9% | 17.9–21.9 |
| Short sleep duration among adults | 34.0% | 31.2–36.7 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 18.6% | 17.0–20.2 |
| Frequent mental distress among adults | 14.3% | 13.0–15.6 |
| Frequent physical distress among adults | 12.4% | 11.2–13.5 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 12.0% | 10.8–13.1 |
| Any disability among adults | 27.5% | 25.3–29.7 |
| Hearing disability among adults | 5.3% | 4.8–5.9 |
| Independent living disability among adults | 7.0% | 6.3–7.7 |
| Mobility disability among adults | 13.1% | 11.9–14.4 |
| Self-care disability among adults | 3.6% | 3.3–3.9 |
| Vision disability among adults | 4.6% | 4.2–5.0 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 27.4% | 25.2–29.9 |
| Food insecurity in the past 12 months among adults | 12.8% | 11.5–14.4 |
| Received food stamps in the past 12 months among adults | 11.4% | 10.0–12.8 |
| Housing insecurity in the past 12 months among adults | 12.0% | 10.7–13.3 |
| Lack of reliable transportation in the past 12 months among adults | 7.0% | 6.3–7.8 |
| Loneliness among adults | 37.3% | 34.8–40.2 |
| Utility services shut-off threat in the past 12 months among adults | 5.6% | 4.9–6.3 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | CA median (p10–p90) |
|---|---|---|---|
| Poverty rate | 7.4% | 10.6% (3.1–25.8%) n=32,364 | 10.6% (4.1–24.9%) n=1,714 |
| Uninsured 18–64 | 4.9% | 9.0% (1.5–24.3%) n=32,286 | 7.7% (1.7–17.9%) n=1,704 |
| No HS diploma (25+) | 7.9% | 7.9% (1.8–20.7%) n=32,505 | 9.8% (1.4–30.9%) n=1,729 |
| Bachelor's or higher (25+) | 53.9% | 23.3% (9.2–53.6%) n=32,505 | 31.3% (9.9–68.2%) n=1,729 |
| Unemployment rate (16+) | 7.4% | 3.9% (0.0–9.8%) n=32,274 | 6.1% (0.8–12.0%) n=1,714 |
| Households without a vehicle | 4.0% | 3.9% (0.0–12.5%) n=32,322 | 4.5% (0.0–12.2%) n=1,708 |
| Broadband subscription | 94.4% | 89.3% (75.1–97.1%) n=32,322 | 93.4% (82.1–98.4%) n=1,708 |
| Housing cost burden (≥30% income) | 41.0% | 23.7% (10.6–40.0%) n=32,322 | 38.6% (24.4–50.5%) n=1,708 |
| Homeownership rate | 79.9% | 78.7% (51.7–94.0%) n=32,322 | 64.1% (31.9–86.4%) n=1,708 |
| Crowded housing (>1 per room) | 4.1% | 1.3% (0.0–6.3%) n=32,322 | 4.8% (0.0–15.9%) n=1,708 |
| Foreign-born population | 20.0% | 2.6% (0.0–18.6%) n=32,553 | 18.9% (3.0–40.4%) n=1,730 |
| Single-parent households | 46.4% | 53.6% (37.3–74.1%) n=32,087 | 48.4% (35.1–72.3%) n=1,692 |
| Population 65+ | 22.0% | 19.4% (10.8–33.6%) n=32,553 | 17.0% (9.7–35.7%) n=1,730 |
| Median age | 46.3 yr | 42.2 yr (33.0–56.3) n=32,292 | 40.1 yr (31.8–57.0) n=1,712 |
| Median household income | $134,903 | $72,070 ($46,039–$118,707) n=30,318 | $93,448 ($54,188–$159,562) n=1,584 |
| Median home value | $1,135,200 | $222,200 ($100,300–$579,820) n=30,049 | $659,800 ($300,520–$1,493,340) n=1,593 |
| Median gross rent | $2,437 | $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 | 81.9 yr ± 0.68 | 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 0.68 years of 81.9, 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