ZIP code
91311
in Chatsworth, CaliforniaPopulation 40,898
62.49/ 100
Ranked #3,233 of 32,066 US ZIPs (top 10.1%)
Ranked #383 of 1,719 California ZIPs (top 22%)
Ranked #128 of 371 Los Angeles-Long Beach-Anaheim, CA ZIPs (top 35%)
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.
Expected annual disaster loss
$1
in the top 1.5% nationally
Lower is healthier
ST90thUS99thDefinition & 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 ›Obesity
23.2%
in the bottom 3.2% nationally
Lower is healthier
ST17thUS3rdDefinition & source ›
The estimated share of adults with obesity, defined as a body-mass index of 30 or higher.
Full methodology ›Natural-disaster risk
in the top 2.9% nationally
Lower is healthier
ST89thUS97thDefinition & 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 ›Loud transportation noise
2.8%
in the top 4.4% nationally
Lower is healthier
ST73rdUS96thDefinition & 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 ›Housing-cost burden
44.5%
in the top 5.8% nationally
Lower is healthier
ST77thUS94thDefinition & source ›
The share of households spending 30% or more of their income on housing.
Full methodology ›Recreation access
1.1 per 1,000 residents
in the top 6.8% nationally
Higher is healthier
ST89thUS93rdDefinition & source ›
The number of places for physical recreation — gyms, sports, and fitness venues — 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 ›Loneliness
38%
in the top 8.7% nationally
Lower is healthier
ST69thUS91stDefinition & source ›
The estimated share of adults who report feeling lonely.
Full methodology ›Transportation noise
9.6%
in the top 9.2% nationally
Lower is healthier
ST72ndUS91stDefinition & source ›
The modeled share of residents exposed to average road, rail, and aviation noise at or above 55 decibels — a noticeable background presence.
Full methodology ›Crowded housing
6.4%
in the top 9.7% nationally
Lower is healthier
ST60thUS90thDefinition & source ›
The share of occupied homes with more than one person per room, the Census definition of crowded housing.
Full methodology ›Tooth loss
6.5%
in the bottom 6.3% nationally
Lower is healthier
ST19thUS6thDefinition & source ›
The estimated share of adults aged 65 and older who have lost all of their natural teeth.
Full methodology ›The read
In its overall standing, Chatsworth, California (ZIP 91311) lands in the top 10.1% healthiest ZIPs nationally (3,233rd) and the top 22% of California (383rd).
Taken together, the data gives a genuinely mixed reading: modeled obesity lands in the bottom 3.2% nationally, recreation lies in the top 6.8% nationally, and modeled utility shutoff stands in the bottom 10.9% nationally. On the other side, modeled expected annual loss rests in the top 1.5% nationally, disaster risk registers in the top 2.9% nationally, and loud transportation noise resides in the top 4.4% nationally. Housing-cost burden settles in the top 5.8% nationally, and modeled loneliness is in the top 8.7% nationally. Modeled transportation noise sits in the top 9.2% nationally, and crowded housing lands in the top 9.7% nationally.
Against the wider neighborhood, expected annual loss runs far higher than the surrounding ZIPs on this measure. Put simply, expected annual loss is FEMA's modeled estimate, in dollars, of average yearly harm to people from natural hazards. Disaster risk is the area's national rank on its highest non-flood peril in FEMA's modeled Risk Index, like wildfire or quake. 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. On the overall standing, ZIP 91326, just across the boundary, ranks healthier.
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 90%
21%
Social Need / SDOH
healthier than 67%
16%
Risk Behavior
healthier than 89%
11%
Mental Health
healthier than 87%
8%
Disability
healthier than 80%
7%
Climate / Disaster Risk
healthier than 70%
5%
Healthcare Access
healthier than 71%
5%
About typical
Preventive Care
healthier than 50%
13%
Holding it back
Environmental Hazard
healthier than 19%
14%
Lifting this score
Chronic Disease Burden
healthier than 71%
21%
Social Need / SDOH
healthier than 62%
16%
Preventive Care
healthier than 70%
13%
Risk Behavior
healthier than 77%
11%
Mental Health
healthier than 88%
8%
Disability
healthier than 75%
7%
About typical
Environmental Hazard
healthier than 50%
14%
Climate / Disaster Risk
healthier than 51%
5%
Healthcare Access
healthier than 47%
5%
Nothing measured is holding this score back.
Lifting this score
Environmental Hazard
healthier than 77%
14%
Preventive Care
healthier than 76%
13%
Risk Behavior
healthier than 72%
11%
Mental Health
healthier than 79%
8%
Disability
healthier than 64%
7%
About typical
Chronic Disease Burden
healthier than 44%
21%
Social Need / SDOH
healthier than 57%
16%
Holding it back
Climate / Disaster Risk
healthier than 24%
5%
Healthcare Access
healthier than 12%
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 19.5; chronic-disease standing 90.4 (top 10%) — 71 points apart, heavier on the environment than it is on chronic illness.
Ranked #16,476 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
91304
Californiashares a border
Score 55.20
Closest healthier
91326
Californiashares a border
Score 67.88
Similar health profile
90503
California99% similar profile
Score 68.12
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 | 21.7% | 20.1–23.4 |
| High blood pressure among adults | 30.2% | 28.2–32.2 |
| Cancer (non-skin) or melanoma among adults | 7.7% | 7.1–8.3 |
| Current asthma among adults | 9.0% | 8.1–9.9 |
| Coronary heart disease among adults | 5.2% | 4.8–5.7 |
| Chronic obstructive pulmonary disease among adults | 4.6% | 4.2–5.2 |
| Depression among adults | 19.1% | 17.3–21.0 |
| Diagnosed diabetes among adults | 10.9% | 9.8–12.0 |
| High cholesterol among adults who have ever been screened | 38.4% | 36.0–40.6 |
| Obesity among adults | 23.2% | 20.8–25.8 |
| Stroke among adults | 3.0% | 2.8–3.2 |
| All teeth lost among adults aged >=65 years | 6.5% | 5.3–7.8 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 6.7% | 5.9–7.6 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 74.2% | 71.7–76.5 |
| Visits to doctor for routine checkup within the past year among adults | 74.5% | 72.2–76.6 |
| Cholesterol screening among adults | 88.3% | 87.1–89.4 |
| Colorectal cancer screening among adults aged 45–75 years | 61.6% | 58.2–64.6 |
| Visited dentist or dental clinic in the past year among adults | 69.1% | 66.7–71.2 |
| Mammography use among women aged 50-74 years | 78.2% | 73.5–82.2 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 15.1% | 13.4–16.8 |
| Current cigarette smoking among adults | 9.1% | 8.1–10.2 |
| No leisure-time physical activity among adults | 20.5% | 18.6–22.5 |
| Short sleep duration among adults | 33.4% | 30.5–36.1 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 18.3% | 16.8–19.9 |
| Frequent mental distress among adults | 14.5% | 13.3–15.9 |
| Frequent physical distress among adults | 12.4% | 11.3–13.5 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 12.3% | 11.2–13.4 |
| Any disability among adults | 27.3% | 25.3–29.5 |
| Hearing disability among adults | 5.7% | 5.1–6.3 |
| Independent living disability among adults | 6.9% | 6.2–7.5 |
| Mobility disability among adults | 12.4% | 11.3–13.6 |
| Self-care disability among adults | 3.3% | 3.0–3.6 |
| Vision disability among adults | 4.4% | 4.0–4.8 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 27.9% | 25.7–30.5 |
| Food insecurity in the past 12 months among adults | 12.4% | 11.2–13.9 |
| Received food stamps in the past 12 months among adults | 10.3% | 9.1–11.6 |
| Housing insecurity in the past 12 months among adults | 11.0% | 9.9–12.3 |
| Lack of reliable transportation in the past 12 months among adults | 6.7% | 6.0–7.4 |
| Loneliness among adults | 38.0% | 35.4–40.8 |
| Utility services shut-off threat in the past 12 months among adults | 4.8% | 4.3–5.5 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | CA median (p10–p90) |
|---|---|---|---|
| Poverty rate | 8.8% | 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+) | 8.7% | 7.9% (1.8–20.7%) n=32,505 | 9.8% (1.4–30.9%) n=1,729 |
| Bachelor's or higher (25+) | 46.2% | 23.3% (9.2–53.6%) n=32,505 | 31.3% (9.9–68.2%) n=1,729 |
| Unemployment rate (16+) | 5.4% | 3.9% (0.0–9.8%) n=32,274 | 6.1% (0.8–12.0%) n=1,714 |
| Households without a vehicle | 4.8% | 3.9% (0.0–12.5%) n=32,322 | 4.5% (0.0–12.2%) n=1,708 |
| Broadband subscription | 95.6% | 89.3% (75.1–97.1%) n=32,322 | 93.4% (82.1–98.4%) n=1,708 |
| Housing cost burden (≥30% income) | 44.5% | 23.7% (10.6–40.0%) n=32,322 | 38.6% (24.4–50.5%) n=1,708 |
| Homeownership rate | 66.6% | 78.7% (51.7–94.0%) n=32,322 | 64.1% (31.9–86.4%) n=1,708 |
| Crowded housing (>1 per room) | 6.4% | 1.3% (0.0–6.3%) n=32,322 | 4.8% (0.0–15.9%) n=1,708 |
| Foreign-born population | 29.4% | 2.6% (0.0–18.6%) n=32,553 | 18.9% (3.0–40.4%) n=1,730 |
| Single-parent households | 48.1% | 53.6% (37.3–74.1%) n=32,087 | 48.4% (35.1–72.3%) n=1,692 |
| Population 65+ | 19.4% | 19.4% (10.8–33.6%) n=32,553 | 17.0% (9.7–35.7%) n=1,730 |
| Median age | 42.3 yr | 42.2 yr (33.0–56.3) n=32,292 | 40.1 yr (31.8–57.0) n=1,712 |
| Median household income | $119,386 | $72,070 ($46,039–$118,707) n=30,318 | $93,448 ($54,188–$159,562) n=1,584 |
| Median home value | $876,400 | $222,200 ($100,300–$579,820) n=30,049 | $659,800 ($300,520–$1,493,340) n=1,593 |
| Median gross rent | $2,311 | $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 | 81.4 yr ± 0.57 | 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 0.57 years of 81.4, 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