ZIP code
91764
in Ontario, CaliforniaPopulation 56,270
43.95/ 100
Ranked #23,463 of 32,066 US ZIPs (bottom 27%)
Ranked #1,352 of 1,719 California ZIPs (bottom 21%)
Ranked #112 of 153 Riverside-San Bernardino-Ontario, CA ZIPs (bottom 27%)
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.
Colon-cancer screening
50.2%
in the bottom 2.1% nationally
Higher is healthier
ST10thUS2ndDefinition & source ›
The estimated share of adults aged 45–75 who are up to date on colorectal-cancer screening.
Full methodology ›Outer-floodplain exposure
63.4%
in the top 0.7% nationally
Lower is healthier
ST98thUS99thDefinition & 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 ›Crowded housing
16.4%
in the top 1.9% nationally
Lower is healthier
ST91stUS98thDefinition & source ›
The share of occupied homes with more than one person per room, the Census definition of crowded housing.
Full methodology ›Loud transportation noise
4.0%
in the top 2.2% nationally
Lower is healthier
ST85thUS98thDefinition & 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 ›Air-toxics cancer risk
40 per million
in the top 2.5% nationally
Lower is healthier
ST84thUS98thDefinition & source ›
The EPA’s modeled estimate of added lifetime cancer risk from breathing outdoor air toxics, in cases per million people exposed over a lifetime.
Full methodology ›Housing-cost burden
48.8%
in the top 3.6% nationally
Lower is healthier
ST87thUS96thDefinition & source ›
The share of households spending 30% or more of their income on housing.
Full methodology ›Uninsured (under 65)
19.1%
in the top 5.3% nationally
Lower is healthier
ST90thUS95thDefinition & source ›
The estimated share of adults aged 18–64 with no current health-insurance coverage.
Full methodology ›Loneliness
40.1%
in the top 4.0% nationally
Lower is healthier
ST84thUS96thDefinition & source ›
The estimated share of adults who report feeling lonely.
Full methodology ›Fine-particle (PM2.5) exceedance
2.1%
in the top 4.4% nationally
Lower is healthier
ST66thUS96thDefinition & source ›
The share of days in the year when modeled fine-particle (PM2.5) pollution was above the EPA’s daily limit of 35 micrograms per cubic meter.
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 ›The read
By the composite measure, ZIP 91764, one of several in Ontario, California sits in the bottom 27% nationally (23,463rd) and the bottom 21% of California (1,352nd).
The main burdens in the data show plainly and lead the picture: modeled colon screening rests in the bottom 2.1% nationally, outer-floodplain exposure sits in the top 0.7% nationally, and crowded housing registers in the top 1.9% nationally. Modeled loud transportation noise lands in the top 2.2% nationally, modeled air-toxics cancer risk resides in the top 2.5% nationally, and housing-cost burden lies in the top 3.6% nationally. Modeled uninsured settles in the top 5.3% nationally, and loneliness stands in the top 4.0% nationally. Modeled fine-particle is in the top 4.4% nationally, and tree cover rests at the national minimum.
Compared with the ZIPs that surround it, outer-floodplain exposure runs far higher than the surrounding ZIPs on this measure. In plain language, air-toxics cancer risk is a modeled EPA estimate of added lifetime cancer risk from breathing outdoor air, per million people. Fine-particle is fine airborne particles about one-thirtieth the width of a hair, counted on modeled days above the EPA standard. Outer-floodplain exposure is land with a lower but real 1-in-500 chance of flooding each year, nicknamed the "500-year floodplain". ZIP 91730, just across the boundary, ranks healthier 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 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 88%
21%
Healthcare Access
healthier than 90%
5%
About typical
Mental Health
healthier than 52%
8%
Holding it back
Social Need / SDOH
healthier than 10%
16%
Environmental Hazard
in the bottom 0.6%
14%
Preventive Care
healthier than 2%
13%
Risk Behavior
healthier than 37%
11%
Disability
healthier than 32%
7%
Climate / Disaster Risk
healthier than 31%
5%
Lifting this score
Chronic Disease Burden
healthier than 65%
21%
Healthcare Access
healthier than 81%
5%
About typical
Mental Health
healthier than 45%
8%
Holding it back
Social Need / SDOH
healthier than 16%
16%
Environmental Hazard
healthier than 4%
14%
Preventive Care
healthier than 9%
13%
Risk Behavior
healthier than 19%
11%
Disability
healthier than 31%
7%
Climate / Disaster Risk
healthier than 28%
5%
Lifting this score
Chronic Disease Burden
healthier than 84%
21%
Healthcare Access
healthier than 80%
5%
About typical
Mental Health
healthier than 58%
8%
Disability
healthier than 43%
7%
Climate / Disaster Risk
healthier than 40%
5%
Holding it back
Social Need / SDOH
healthier than 26%
16%
Environmental Hazard
in the bottom 0.7%
14%
Preventive Care
healthier than 11%
13%
Risk Behavior
healthier than 30%
11%
“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 0.6 (bottom 1%); chronic-disease standing 88.1 — 88 points apart, heavier on the environment than it is on chronic illness.
Ranked #17,731 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
91730
Californiashares a border
Score 54.46
Closest healthier
91739
Californiashares a border
Score 60.81
Similar health profile
92703
California98% similar profile
Score 44.88
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 | 19.2% | 17.3–21.3 |
| High blood pressure among adults | 30.0% | 27.3–32.9 |
| Cancer (non-skin) or melanoma among adults | 4.2% | 3.8–4.6 |
| Current asthma among adults | 9.9% | 8.8–11.1 |
| Coronary heart disease among adults | 5.1% | 4.6–5.7 |
| Chronic obstructive pulmonary disease among adults | 4.9% | 4.4–5.4 |
| Depression among adults | 19.8% | 17.3–22.5 |
| Diagnosed diabetes among adults | 12.2% | 10.8–13.7 |
| High cholesterol among adults who have ever been screened | 32.3% | 29.4–35.3 |
| Obesity among adults | 35.1% | 30.8–39.6 |
| Stroke among adults | 3.0% | 2.8–3.2 |
| All teeth lost among adults aged >=65 years | 13.4% | 11.0–16.2 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 19.1% | 17.0–21.4 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 65.1% | 61.8–68.0 |
| Visits to doctor for routine checkup within the past year among adults | 67.3% | 63.7–70.6 |
| Cholesterol screening among adults | 80.9% | 78.7–82.9 |
| Colorectal cancer screening among adults aged 45–75 years | 50.2% | 46.0–54.7 |
| Visited dentist or dental clinic in the past year among adults | 51.7% | 48.5–55.0 |
| Mammography use among women aged 50-74 years | 71.9% | 65.2–78.3 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 15.8% | 13.4–18.3 |
| Current cigarette smoking among adults | 13.2% | 11.6–15.0 |
| No leisure-time physical activity among adults | 29.5% | 26.2–33.0 |
| Short sleep duration among adults | 39.3% | 35.1–43.8 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 29.2% | 26.5–31.9 |
| Frequent mental distress among adults | 18.9% | 17.0–20.9 |
| Frequent physical distress among adults | 15.3% | 13.8–17.0 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 18.7% | 16.9–20.7 |
| Any disability among adults | 33.7% | 30.5–37.0 |
| Hearing disability among adults | 5.4% | 4.8–6.1 |
| Independent living disability among adults | 10.1% | 9.1–11.1 |
| Mobility disability among adults | 14.7% | 13.2–16.4 |
| Self-care disability among adults | 5.0% | 4.6–5.5 |
| Vision disability among adults | 8.2% | 7.5–8.9 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 32.2% | 28.9–35.8 |
| Food insecurity in the past 12 months among adults | 29.7% | 26.7–32.6 |
| Received food stamps in the past 12 months among adults | 26.6% | 23.9–29.2 |
| Housing insecurity in the past 12 months among adults | 23.7% | 21.1–26.3 |
| Lack of reliable transportation in the past 12 months among adults | 14.5% | 13.0–16.1 |
| Loneliness among adults | 40.1% | 36.3–44.1 |
| Utility services shut-off threat in the past 12 months among adults | 11.6% | 10.2–13.1 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | CA median (p10–p90) |
|---|---|---|---|
| Poverty rate | 16.7% | 10.6% (3.1–25.8%) n=32,364 | 10.6% (4.1–24.9%) n=1,714 |
| Uninsured 18–64 | 13.7% | 9.0% (1.5–24.3%) n=32,286 | 7.7% (1.7–17.9%) n=1,704 |
| No HS diploma (25+) | 24.7% | 7.9% (1.8–20.7%) n=32,505 | 9.8% (1.4–30.9%) n=1,729 |
| Bachelor's or higher (25+) | 19.3% | 23.3% (9.2–53.6%) n=32,505 | 31.3% (9.9–68.2%) n=1,729 |
| Unemployment rate (16+) | 6.4% | 3.9% (0.0–9.8%) n=32,274 | 6.1% (0.8–12.0%) n=1,714 |
| Households without a vehicle | 4.2% | 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) | 48.8% | 23.7% (10.6–40.0%) n=32,322 | 38.6% (24.4–50.5%) n=1,708 |
| Homeownership rate | 45.1% | 78.7% (51.7–94.0%) n=32,322 | 64.1% (31.9–86.4%) n=1,708 |
| Crowded housing (>1 per room) | 16.4% | 1.3% (0.0–6.3%) n=32,322 | 4.8% (0.0–15.9%) n=1,708 |
| Foreign-born population | 27.9% | 2.6% (0.0–18.6%) n=32,553 | 18.9% (3.0–40.4%) n=1,730 |
| Single-parent households | 42.9% | 53.6% (37.3–74.1%) n=32,087 | 48.4% (35.1–72.3%) n=1,692 |
| Population 65+ | 8.6% | 19.4% (10.8–33.6%) n=32,553 | 17.0% (9.7–35.7%) n=1,730 |
| Median age | 31.8 yr | 42.2 yr (33.0–56.3) n=32,292 | 40.1 yr (31.8–57.0) n=1,712 |
| Median household income | $81,762 | $72,070 ($46,039–$118,707) n=30,318 | $93,448 ($54,188–$159,562) n=1,584 |
| Median home value | $565,800 | $222,200 ($100,300–$579,820) n=30,049 | $659,800 ($300,520–$1,493,340) n=1,593 |
| Median gross rent | $2,181 | $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 unavailable for this ZIP — fewer than 80% of the census tracts that make it up could be matched across the 2010→2020 tract-boundary revision, so no value is published rather than an unreliable one. See how coverage gaps are handled. | |||
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