ZIP code
91384
in Castaic, CaliforniaPopulation 26,478
58.34/ 100
Ranked #6,120 of 32,066 US ZIPs (top 19%)
Ranked #594 of 1,719 California ZIPs (top 35%)
Ranked #181 of 371 Los Angeles-Long Beach-Anaheim, CA ZIPs (top 49%)
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.
Natural-disaster risk
in the top 1.7% nationally
Lower is healthier
ST94thUS98thDefinition & 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 ›Loneliness
41.3%
in the top 2.5% nationally
Lower is healthier
ST90thUS98thDefinition & source ›
The estimated share of adults who report feeling lonely.
Full methodology ›Park land
40.2%
in the top 3.3% nationally
Higher is healthier
ST90thUS97thDefinition & source ›
The share of this ZIP’s land area that is public parkland.
Full methodology ›High blood pressure
25.8%
in the bottom 3.5% nationally
Lower is healthier
ST8thUS3rdDefinition & source ›
The estimated share of adults who have been told by a health professional that they have high blood pressure.
Full methodology ›Coronary heart disease
4.0%
in the bottom 3.3% nationally
Lower is healthier
ST7thUS3rdDefinition & source ›
The estimated share of adults who have been told by a health professional that they have coronary heart disease or angina.
Full methodology ›Obesity
25.9%
in the bottom 7.0% nationally
Lower is healthier
ST32ndUS7thDefinition & source ›
The estimated share of adults with obesity, defined as a body-mass index of 30 or higher.
Full methodology ›Median household income
$131,689
in the top 6.7% nationally
Higher is healthier
ST80thUS93rdDefinition & source ›
The middle household income in this ZIP — half of households earn more, half earn less — in dollars per year.
Full methodology ›Hearing disability
4.6%
in the bottom 4.0% nationally
Lower is healthier
ST8thUS4thDefinition & source ›
The estimated share of adults who are deaf or have serious difficulty hearing.
Full methodology ›Colon-cancer screening
56.2%
in the bottom 6.3% nationally
Higher is healthier
ST26thUS6thDefinition & source ›
The estimated share of adults aged 45–75 who are up to date on colorectal-cancer screening.
Full methodology ›Stroke
2.4%
in the bottom 5.4% nationally
Lower is healthier
ST10thUS5thDefinition & source ›
The estimated share of adults who have been told by a health professional that they have had a stroke.
Full methodology ›The read
Overall, Castaic, California (ZIP 91384) places in the top 19% healthiest ZIPs nationally (6,120th) and the top 35% of California (594th).
The measures fall on both sides for this area, fairly evenly: park land sits in the top 3.3% nationally, and modeled high blood pressure lies in the bottom 3.5% nationally. Modeled coronary heart disease rests in the bottom 3.3% nationally, and obesity resides in the bottom 7.0% nationally. Household income is in the top 6.7% nationally, modeled hearing disability lands in the bottom 4.0% nationally, and modeled stroke stands in the bottom 5.4% nationally. Pulling the other way, modeled disaster risk registers in the top 1.7% nationally, loneliness settles in the top 2.5% nationally, and colon screening sits in the bottom 6.3% nationally.
Beside the areas that surround it, park land runs far higher than the surrounding ZIPs on this measure. For readers new to these terms, disaster risk is the area's national rank on its highest non-flood peril in FEMA's modeled Risk Index, like wildfire or quake. Among nearby ZIPs, the nearest healthier one overall is ZIP 91354, 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 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 97%
21%
Mental Health
healthier than 71%
8%
Disability
healthier than 77%
7%
About typical
Social Need / SDOH
healthier than 56%
16%
Environmental Hazard
healthier than 50%
14%
Risk Behavior
healthier than 59%
11%
Climate / Disaster Risk
healthier than 42%
5%
Healthcare Access
healthier than 56%
5%
Holding it back
Preventive Care
healthier than 8%
13%
Lifting this score
Chronic Disease Burden
healthier than 92%
21%
Environmental Hazard
healthier than 73%
14%
Mental Health
healthier than 67%
8%
Disability
healthier than 72%
7%
About typical
Social Need / SDOH
healthier than 55%
16%
Holding it back
Preventive Care
healthier than 26%
13%
Risk Behavior
healthier than 34%
11%
Climate / Disaster Risk
healthier than 34%
5%
Healthcare Access
healthier than 35%
5%
Lifting this score
Chronic Disease Burden
healthier than 90%
21%
Environmental Hazard
healthier than 90%
14%
Disability
healthier than 61%
7%
About typical
Social Need / SDOH
healthier than 49%
16%
Mental Health
healthier than 40%
8%
Holding it back
Preventive Care
healthier than 32%
13%
Risk Behavior
healthier than 31%
11%
Climate / Disaster Risk
healthier than 9%
5%
Healthcare Access
healthier than 4%
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
91354
Californiashares a border
Score 65.75
Closest healthier
91355
Californiashares a border
Score 63.44
Similar health profile
39534
Mississippi98% similar profile
Score 65.01
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 | 16.6% | 15.3–18.1 |
| High blood pressure among adults | 25.8% | 23.9–27.7 |
| Cancer (non-skin) or melanoma among adults | 5.2% | 4.7–5.6 |
| Current asthma among adults | 8.9% | 8.0–9.8 |
| Coronary heart disease among adults | 4.0% | 3.6–4.4 |
| Chronic obstructive pulmonary disease among adults | 4.0% | 3.5–4.4 |
| Depression among adults | 19.7% | 17.8–21.6 |
| Diagnosed diabetes among adults | 9.2% | 8.3–10.2 |
| High cholesterol among adults who have ever been screened | 33.5% | 31.4–35.7 |
| Obesity among adults | 25.9% | 23.2–28.7 |
| Stroke among adults | 2.4% | 2.2–2.6 |
| All teeth lost among adults aged >=65 years | 6.6% | 5.4–7.9 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 12.5% | 10.5–14.5 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 64.9% | 62.1–67.6 |
| Visits to doctor for routine checkup within the past year among adults | 67.8% | 65.3–70.2 |
| Cholesterol screening among adults | 82.2% | 80.4–84.0 |
| Colorectal cancer screening among adults aged 45–75 years | 56.2% | 52.6–59.4 |
| Visited dentist or dental clinic in the past year among adults | 63.5% | 61.1–65.8 |
| Mammography use among women aged 50-74 years | 77.9% | 73.1–81.9 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 19.1% | 17.1–21.2 |
| Current cigarette smoking among adults | 11.2% | 9.9–12.6 |
| No leisure-time physical activity among adults | 21.6% | 19.5–24.0 |
| Short sleep duration among adults | 35.8% | 32.9–38.6 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 20.7% | 18.8–22.7 |
| Frequent mental distress among adults | 16.9% | 15.4–18.4 |
| Frequent physical distress among adults | 12.6% | 11.4–13.8 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 15.5% | 13.9–17.1 |
| Any disability among adults | 28.6% | 26.2–31.1 |
| Hearing disability among adults | 4.6% | 4.1–5.1 |
| Independent living disability among adults | 7.3% | 6.6–8.1 |
| Mobility disability among adults | 10.7% | 9.7–11.9 |
| Self-care disability among adults | 3.4% | 3.1–3.7 |
| Vision disability among adults | 4.9% | 4.4–5.3 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 32.3% | 29.8–35.0 |
| Food insecurity in the past 12 months among adults | 17.7% | 15.6–20.0 |
| Received food stamps in the past 12 months among adults | 14.0% | 12.2–15.9 |
| Housing insecurity in the past 12 months among adults | 16.2% | 14.4–18.1 |
| Lack of reliable transportation in the past 12 months among adults | 9.3% | 8.3–10.5 |
| Loneliness among adults | 41.3% | 38.7–44.4 |
| Utility services shut-off threat in the past 12 months among adults | 6.7% | 5.9–7.6 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | CA median (p10–p90) |
|---|---|---|---|
| Poverty rate | 5.7% | 10.6% (3.1–25.8%) n=32,364 | 10.6% (4.1–24.9%) n=1,714 |
| Uninsured 18–64 | 7.5% | 9.0% (1.5–24.3%) n=32,286 | 7.7% (1.7–17.9%) n=1,704 |
| No HS diploma (25+) | 16.3% | 7.9% (1.8–20.7%) n=32,505 | 9.8% (1.4–30.9%) n=1,729 |
| Bachelor's or higher (25+) | 32.3% | 23.3% (9.2–53.6%) n=32,505 | 31.3% (9.9–68.2%) n=1,729 |
| Unemployment rate (16+) | 5.3% | 3.9% (0.0–9.8%) n=32,274 | 6.1% (0.8–12.0%) n=1,714 |
| Households without a vehicle | 2.4% | 3.9% (0.0–12.5%) n=32,322 | 4.5% (0.0–12.2%) n=1,708 |
| Broadband subscription | 96.5% | 89.3% (75.1–97.1%) n=32,322 | 93.4% (82.1–98.4%) n=1,708 |
| Housing cost burden (≥30% income) | 37.8% | 23.7% (10.6–40.0%) n=32,322 | 38.6% (24.4–50.5%) n=1,708 |
| Homeownership rate | 84.1% | 78.7% (51.7–94.0%) n=32,322 | 64.1% (31.9–86.4%) n=1,708 |
| Crowded housing (>1 per room) | 3.9% | 1.3% (0.0–6.3%) n=32,322 | 4.8% (0.0–15.9%) n=1,708 |
| Foreign-born population | 19.9% | 2.6% (0.0–18.6%) n=32,553 | 18.9% (3.0–40.4%) n=1,730 |
| Single-parent households | 46.0% | 53.6% (37.3–74.1%) n=32,087 | 48.4% (35.1–72.3%) n=1,692 |
| Population 65+ | 10.5% | 19.4% (10.8–33.6%) n=32,553 | 17.0% (9.7–35.7%) n=1,730 |
| Median age | 35.8 yr | 42.2 yr (33.0–56.3) n=32,292 | 40.1 yr (31.8–57.0) n=1,712 |
| Median household income | $131,689 | $72,070 ($46,039–$118,707) n=30,318 | $93,448 ($54,188–$159,562) n=1,584 |
| Median home value | $767,300 | $222,200 ($100,300–$579,820) n=30,049 | $659,800 ($300,520–$1,493,340) n=1,593 |
| Median gross rent | $1,745 | $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 ± 1.37 | 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 1.37 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