ZIP code
92391
in Twin Peaks, CaliforniaPopulation 2,254
52.24/ 100
Ranked #13,133 of 32,066 US ZIPs (top 41%)
Ranked #929 of 1,719 California ZIPs (bottom 46%)
Ranked #59 of 153 Riverside-San Bernardino-Ontario, CA ZIPs (top 39%)
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.
Humid extreme heat
6.6 days/year
in the bottom 4.2% nationally
Lower is healthier
ST10thUS4thDefinition & 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 ›Housing-cost burden
45.6%
in the top 5.2% nationally
Lower is healthier
ST80thUS95thDefinition & source ›
The share of households spending 30% or more of their income on housing.
Full methodology ›Park land
18.8%
in the top 7.4% nationally
Higher is healthier
ST79thUS93rdDefinition & source ›
The share of this ZIP’s land area that is public parkland.
Full methodology ›Home broadband subscription
98%
in the top 7.5% nationally
Higher is healthier
ST88thUS93rdDefinition & source ›
The share of households with a broadband internet subscription.
Full methodology ›Floodplain exposure
0.40%
in the bottom 9.2% nationally
Lower is healthier
ST22ndUS9thDefinition & 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 ›Fiber broadband
80.8%
in the top 23% nationally
Higher is healthier
ST93rdUS77thDefinition & source ›
The share of homes where fiber-optic internet service is available.
Full methodology ›The read
On the composite measure, Twin Peaks, California (ZIP 92391) stands in the top 41% healthiest ZIPs nationally (13,133rd) and the bottom 46% of California (929th).
The bright spots in the data define much of the story here: modeled humid heat resides in the bottom 4.2% nationally, and park land stands in the top 7.4% nationally. Home broadband subscription sits in the top 7.5% nationally, and floodplain exposure resides in the bottom 9.2% nationally. Modeled loud transportation noise stands at the national minimum, shared with about 22% of ZIPs. Walkability sits in the top 16% nationally, and fatal road crashes resides in the bottom 17% nationally. On the other side, housing-cost burden stands in the top 5.2% nationally, and modeled disaster risk sits in the top 11.8% nationally. Recreation resides at the national minimum, shared with about 35% of ZIPs.
Set beside the wider area around it, park land runs far lower than the surrounding ZIPs on this measure. For clarity, disaster risk is the area's national rank on its highest non-flood peril in FEMA's modeled Risk Index, like wildfire or quake. 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". ZIP 92325, just across the boundary, ranks better overall among the ZIPs nearby.
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 Riverside-San Bernardino-Ontario, 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 66%
21%
Environmental Hazard
healthier than 74%
14%
Risk Behavior
healthier than 67%
11%
Climate / Disaster Risk
healthier than 90%
5%
About typical
Mental Health
healthier than 45%
8%
Disability
healthier than 50%
7%
Healthcare Access
healthier than 41%
5%
Holding it back
Social Need / SDOH
healthier than 36%
16%
Preventive Care
healthier than 19%
13%
Lifting this score
Environmental Hazard
healthier than 85%
14%
Climate / Disaster Risk
healthier than 77%
5%
About typical
Preventive Care
healthier than 41%
13%
Risk Behavior
healthier than 42%
11%
Disability
healthier than 48%
7%
Holding it back
Chronic Disease Burden
healthier than 31%
21%
Social Need / SDOH
healthier than 39%
16%
Mental Health
healthier than 37%
8%
Healthcare Access
healthier than 25%
5%
Lifting this score
Risk Behavior
healthier than 62%
11%
Disability
healthier than 67%
7%
Climate / Disaster Risk
healthier than 93%
5%
About typical
Chronic Disease Burden
healthier than 43%
21%
Social Need / SDOH
healthier than 58%
16%
Environmental Hazard
healthier than 56%
14%
Preventive Care
healthier than 58%
13%
Mental Health
healthier than 44%
8%
Holding it back
Healthcare Access
healthier than 23%
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
92325
Californiashares a border
Score 55.85
Closest healthier
92352
Californiashares a border
Score 57.60
Similar health profile
80459
Colorado97% similar profile
Score 53.35
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 | 26.9% | 24.4–29.5 |
| High blood pressure among adults | 35.3% | 32.3–38.3 |
| Cancer (non-skin) or melanoma among adults | 8.1% | 7.3–8.9 |
| Current asthma among adults | 10.6% | 9.4–11.8 |
| Coronary heart disease among adults | 6.9% | 6.2–7.6 |
| Chronic obstructive pulmonary disease among adults | 6.8% | 5.9–7.8 |
| Depression among adults | 22.4% | 19.7–25.3 |
| Diagnosed diabetes among adults | 12.0% | 10.5–13.5 |
| High cholesterol among adults who have ever been screened | 37.0% | 33.8–40.2 |
| Obesity among adults | 33.3% | 29.1–37.8 |
| Stroke among adults | 3.6% | 3.2–3.9 |
| All teeth lost among adults aged >=65 years | 11.7% | 9.5–14.3 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 9.0% | 7.6–10.4 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 72.5% | 69.3–75.4 |
| Visits to doctor for routine checkup within the past year among adults | 72.1% | 68.8–75.0 |
| Cholesterol screening among adults | 85.9% | 84.1–87.4 |
| Colorectal cancer screening among adults aged 45–75 years | 62.4% | 58.0–66.8 |
| Visited dentist or dental clinic in the past year among adults | 59.2% | 56.0–62.5 |
| Mammography use among women aged 50-74 years | 72.2% | 65.5–78.7 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 16.2% | 13.8–18.7 |
| Current cigarette smoking among adults | 12.9% | 11.0–15.1 |
| No leisure-time physical activity among adults | 22.4% | 19.5–25.7 |
| Short sleep duration among adults | 36.0% | 31.9–40.4 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 22.9% | 20.4–25.6 |
| Frequent mental distress among adults | 17.8% | 15.9–19.7 |
| Frequent physical distress among adults | 14.8% | 13.1–16.5 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 15.3% | 13.6–17.0 |
| Any disability among adults | 31.0% | 27.8–34.4 |
| Hearing disability among adults | 6.7% | 6.0–7.5 |
| Independent living disability among adults | 8.8% | 7.8–9.8 |
| Mobility disability among adults | 14.6% | 12.8–16.5 |
| Self-care disability among adults | 4.3% | 3.9–4.8 |
| Vision disability among adults | 5.6% | 5.1–6.2 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 25.6% | 22.5–28.9 |
| Food insecurity in the past 12 months among adults | 16.3% | 14.0–18.9 |
| Received food stamps in the past 12 months among adults | 16.3% | 13.8–19.0 |
| Housing insecurity in the past 12 months among adults | 13.3% | 11.4–15.3 |
| Lack of reliable transportation in the past 12 months among adults | 9.0% | 7.9–10.3 |
| Loneliness among adults | 34.9% | 31.1–38.8 |
| Utility services shut-off threat in the past 12 months among adults | 7.2% | 6.2–8.4 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | CA median (p10–p90) |
|---|---|---|---|
| Poverty rate | 13.9% | 10.6% (3.1–25.8%) n=32,364 | 10.6% (4.1–24.9%) n=1,714 |
| Uninsured 18–64 | 11.2% | 9.0% (1.5–24.3%) n=32,286 | 7.7% (1.7–17.9%) n=1,704 |
| No HS diploma (25+) | 1.7% | 7.9% (1.8–20.7%) n=32,505 | 9.8% (1.4–30.9%) n=1,729 |
| Bachelor's or higher (25+) | 16.8% | 23.3% (9.2–53.6%) n=32,505 | 31.3% (9.9–68.2%) n=1,729 |
| Unemployment rate (16+) | 2.6% | 3.9% (0.0–9.8%) n=32,274 | 6.1% (0.8–12.0%) n=1,714 |
| Households without a vehicle | 5.4% | 3.9% (0.0–12.5%) n=32,322 | 4.5% (0.0–12.2%) n=1,708 |
| Broadband subscription | 98.0% | 89.3% (75.1–97.1%) n=32,322 | 93.4% (82.1–98.4%) n=1,708 |
| Housing cost burden (≥30% income) | 45.6% | 23.7% (10.6–40.0%) n=32,322 | 38.6% (24.4–50.5%) n=1,708 |
| Homeownership rate | 74.5% | 78.7% (51.7–94.0%) n=32,322 | 64.1% (31.9–86.4%) n=1,708 |
| Crowded housing (>1 per room) | 2.5% | 1.3% (0.0–6.3%) n=32,322 | 4.8% (0.0–15.9%) n=1,708 |
| Foreign-born population | 15.8% | 2.6% (0.0–18.6%) n=32,553 | 18.9% (3.0–40.4%) n=1,730 |
| Single-parent households | 74.9% | 53.6% (37.3–74.1%) n=32,087 | 48.4% (35.1–72.3%) n=1,692 |
| Population 65+ | 13.3% | 19.4% (10.8–33.6%) n=32,553 | 17.0% (9.7–35.7%) n=1,730 |
| Median age | 34.6 yr | 42.2 yr (33.0–56.3) n=32,292 | 40.1 yr (31.8–57.0) n=1,712 |
| Median household income | $81,789 | $72,070 ($46,039–$118,707) n=30,318 | $93,448 ($54,188–$159,562) n=1,584 |
| Median home value | $340,500 | $222,200 ($100,300–$579,820) n=30,049 | $659,800 ($300,520–$1,493,340) n=1,593 |
| Median gross rent | $2,589 | $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 | 79.8 yr ± 1.22 | 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 1.22 years of 79.8, 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