ZIP code
91931
in Guatay, CaliforniaPopulation 494
58.09/ 100
Ranked #6,317 of 32,066 US ZIPs (top 20%)
Ranked #610 of 1,719 California ZIPs (top 35%)
Ranked #61 of 106 San Diego-Chula Vista-Carlsbad, CA ZIPs (bottom 42%)
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.
Park land
72%
in the top 1.0% nationally
Higher is healthier
ST97thUS99thDefinition & source ›
The share of this ZIP’s land area that is public parkland.
Full methodology ›PFAS in drinking water
7.2%
in the bottom 3.7% nationally
Lower is healthier
ST5thUS4thDefinition & source ›
The modeled probability that PFAS “forever chemicals” would be detected in untreated groundwater in this area, the source private wells draw on.
A modeled likelihood for untreated groundwater, the source drawn on by private wells, which are federally unregulated. It is not a measurement of treated water delivered by a public system, and it is not a test of any individual well.
Full methodology ›Distance to an emergency room
22.5 mi
in the top 4.1% nationally
Lower is healthier
ST96thUS96thDefinition & source ›
The distance in miles from this ZIP’s edge to the nearest Medicare-certified hospital with an emergency room.
Full methodology ›Distance to a nursing home
17.1 mi
in the top 4.4% nationally
Lower is healthier
ST95thUS96thDefinition & source ›
The distance in miles from this ZIP’s edge to the nearest Medicare- or Medicaid-certified nursing home.
Full methodology ›Obesity
26.5%
in the bottom 8.2% nationally
Lower is healthier
ST35thUS8thDefinition & source ›
The estimated share of adults with obesity, defined as a body-mass index of 30 or higher.
Full methodology ›Distance to a hazardous-chemical facility
15.7 mi
in the top 7.5% nationally
Higher is healthier
ST92ndUS93rdDefinition & source ›
The distance in miles from this ZIP’s edge to the nearest facility that handles enough hazardous chemicals to require an EPA risk-management plan for accidental releases.
Full methodology ›Distance to a Superfund site
52.9 mi
in the top 11.1% nationally
Higher is healthier
ST97thUS89thDefinition & 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 ›Poverty rate
3.6%
in the bottom 12.4% nationally
Lower is healthier
ST9thUS12thDefinition & source ›
The share of residents whose income is below the federal poverty line, from the Census Bureau’s American Community Survey.
Full methodology ›Arsenic in groundwater
1.6%
in the bottom 17% nationally
Lower is healthier
ST4thUS17thDefinition & source ›
The modeled probability that untreated groundwater in this area — the source private wells draw on — exceeds the federal arsenic limit of 10 micrograms per liter.
A modeled likelihood for untreated groundwater, the source drawn on by private wells, which are federally unregulated. It is not a measurement of treated water delivered by a public system, and it is not a test of any individual well.
Full methodology ›Air-toxics cancer risk
20 per million
in the bottom 25% nationally
Lower is healthier
ST8thUS25thDefinition & 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 ›The read
In overall standing, Guatay, California (ZIP 91931) comes out in the top 20% healthiest ZIPs nationally (6,317th) and the top 35% of California (610th).
The measures fall on both sides of the ledger for this area: park land lands in the top 1.0% nationally, modeled pfas is in the bottom 3.7% nationally, and modeled obesity resides in the bottom 8.2% nationally. Unemployment rests at the national minimum, shared with about 15% of ZIPs. Distance to a hazardous-chemical facility lies in the top 7.5% nationally. Households without a vehicle sits at the national minimum, shared with about 16% of ZIPs. Floodplain exposure settles in the bottom 10.3% nationally. Set against that, distance to an emergency room registers in the top 4.1% nationally, and distance to a nursing home stands in the top 4.4% nationally. Fiber broadband lands at the national minimum, shared with about 19% of ZIPs.
Relative to the ZIPs around it, park land runs far higher than the surrounding ZIPs on this measure. In plain terms, pfas is the man-made "forever chemicals" that build up in the body and environment instead of breaking down; here a modeled estimate of the chance a private well contains them. Distance to a hazardous-chemical facility is a plant handling large amounts of hazardous chemicals that must file an EPA risk-management plan for accidental releases. Floodplain exposure is land with about a 1-in-100 chance of flooding each year, nicknamed the "100-year floodplain". The nearest healthier ZIP overall is ZIP 91916, 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 San Diego-Chula Vista-Carlsbad, 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 77%
21%
Social Need / SDOH
healthier than 81%
16%
Environmental Hazard
healthier than 98%
14%
Risk Behavior
healthier than 77%
11%
Disability
healthier than 70%
7%
Climate / Disaster Risk
healthier than 90%
5%
About typical
Preventive Care
healthier than 51%
13%
Holding it back
Mental Health
healthier than 34%
8%
Healthcare Access
healthier than 11%
5%
Lifting this score
Social Need / SDOH
healthier than 75%
16%
Environmental Hazard
healthier than 97%
14%
Preventive Care
healthier than 71%
13%
Disability
healthier than 64%
7%
Climate / Disaster Risk
healthier than 76%
5%
About typical
Chronic Disease Burden
healthier than 43%
21%
Risk Behavior
healthier than 56%
11%
Holding it back
Mental Health
healthier than 23%
8%
Healthcare Access
healthier than 7%
5%
Lifting this score
Social Need / SDOH
healthier than 74%
16%
Environmental Hazard
healthier than 92%
14%
Preventive Care
healthier than 69%
13%
Climate / Disaster Risk
healthier than 72%
5%
About typical
Risk Behavior
healthier than 41%
11%
Disability
healthier than 47%
7%
Holding it back
Chronic Disease Burden
healthier than 17%
21%
Mental Health
healthier than 16%
8%
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
91901
Californiashares a border
Score 57.63
Closest healthier
91916
Californiashares a border
Score 58.11
Similar health profile
05441
Vermont96% similar profile
Score 58.99
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 | 25.5% | 23.2–28.1 |
| High blood pressure among adults | 32.5% | 29.9–35.4 |
| Cancer (non-skin) or melanoma among adults | 9.6% | 8.7–10.6 |
| Current asthma among adults | 10.1% | 9.0–11.3 |
| Coronary heart disease among adults | 6.3% | 5.5–7.1 |
| Chronic obstructive pulmonary disease among adults | 6.5% | 5.5–7.6 |
| Depression among adults | 24.6% | 22.1–27.4 |
| Diagnosed diabetes among adults | 10.2% | 8.9–11.6 |
| High cholesterol among adults who have ever been screened | 37.1% | 34.4–40.0 |
| Obesity among adults | 26.5% | 23.2–30.3 |
| Stroke among adults | 3.3% | 2.9–3.7 |
| All teeth lost among adults aged >=65 years | 9.4% | 7.6–11.4 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 5.8% | 4.6–7.4 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 71.5% | 68.5–74.7 |
| Visits to doctor for routine checkup within the past year among adults | 74.6% | 72.0–77.4 |
| Cholesterol screening among adults | 87.7% | 86.1–89.4 |
| Colorectal cancer screening among adults aged 45–75 years | 68.5% | 64.5–72.1 |
| Visited dentist or dental clinic in the past year among adults | 67.1% | 64.3–69.8 |
| Mammography use among women aged 50-74 years | 75.8% | 69.4–81.0 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 17.3% | 15.2–19.9 |
| Current cigarette smoking among adults | 12.1% | 10.0–14.2 |
| No leisure-time physical activity among adults | 19.1% | 16.3–22.0 |
| Short sleep duration among adults | 33.8% | 30.4–37.2 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 18.4% | 16.0–21.1 |
| Frequent mental distress among adults | 17.6% | 15.8–19.6 |
| Frequent physical distress among adults | 13.6% | 12.0–15.4 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 14.2% | 12.4–16.1 |
| Any disability among adults | 28.3% | 24.9–31.6 |
| Hearing disability among adults | 6.3% | 5.5–7.1 |
| Independent living disability among adults | 7.8% | 6.7–8.9 |
| Mobility disability among adults | 13.3% | 11.4–15.4 |
| Self-care disability among adults | 3.6% | 3.1–4.1 |
| Vision disability among adults | 4.2% | 3.7–4.8 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 26.3% | 23.3–29.6 |
| Food insecurity in the past 12 months among adults | 11.2% | 9.2–13.3 |
| Received food stamps in the past 12 months among adults | 11.2% | 9.2–13.4 |
| Housing insecurity in the past 12 months among adults | 10.3% | 8.7–12.0 |
| Lack of reliable transportation in the past 12 months among adults | 6.7% | 5.7–7.7 |
| Loneliness among adults | 34.7% | 31.4–38.3 |
| Utility services shut-off threat in the past 12 months among adults | 5.2% | 4.4–6.0 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | CA median (p10–p90) |
|---|---|---|---|
| Poverty rate | 3.6% | 10.6% (3.1–25.8%) n=32,364 | 10.6% (4.1–24.9%) n=1,714 |
| Uninsured 18–64 | 56.5% | 9.0% (1.5–24.3%) n=32,286 | 7.7% (1.7–17.9%) n=1,704 |
| No HS diploma (25+) | 25.8% | 7.9% (1.8–20.7%) n=32,505 | 9.8% (1.4–30.9%) n=1,729 |
| Bachelor's or higher (25+) | 22.6% | 23.3% (9.2–53.6%) n=32,505 | 31.3% (9.9–68.2%) n=1,729 |
| Unemployment rate (16+) | 0.0% | 3.9% (0.0–9.8%) n=32,274 | 6.1% (0.8–12.0%) n=1,714 |
| Households without a vehicle | 0.0% | 3.9% (0.0–12.5%) n=32,322 | 4.5% (0.0–12.2%) n=1,708 |
| Broadband subscription | 83.1% | 89.3% (75.1–97.1%) n=32,322 | 93.4% (82.1–98.4%) n=1,708 |
| Housing cost burden (≥30% income) | 31.4% | 23.7% (10.6–40.0%) n=32,322 | 38.6% (24.4–50.5%) n=1,708 |
| Homeownership rate | 81.4% | 78.7% (51.7–94.0%) n=32,322 | 64.1% (31.9–86.4%) n=1,708 |
| Crowded housing (>1 per room) | 0.0% | 1.3% (0.0–6.3%) n=32,322 | 4.8% (0.0–15.9%) n=1,708 |
| Foreign-born population | 19.4% | 2.6% (0.0–18.6%) n=32,553 | 18.9% (3.0–40.4%) n=1,730 |
| Single-parent households | 100.0% | 53.6% (37.3–74.1%) n=32,087 | 48.4% (35.1–72.3%) n=1,692 |
| Population 65+ | 50.8% | 19.4% (10.8–33.6%) n=32,553 | 17.0% (9.7–35.7%) n=1,730 |
| Median age | 65.2 yr | 42.2 yr (33.0–56.3) n=32,292 | 40.1 yr (31.8–57.0) n=1,712 |
| Median household income | $63,750 | $72,070 ($46,039–$118,707) n=30,318 | $93,448 ($54,188–$159,562) n=1,584 |
| Median home value | — | $222,200 ($100,300–$579,820) n=30,049 | $659,800 ($300,520–$1,493,340) n=1,593 |
| Median gross rent | — | $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 | 75.4 yr ± 1.42 | 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 1.42 years of 75.4, 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