How California's ZIP codes measure up on health
The ZipVitals Score across California — built one ZIP code at a time, then rolled up to the state by resident population.
Data release 20261,719 of 1,756 ZIP codes scored · 39.2M residents represented
Score snapshot
People & national context
California's ZIP codes, ranked
Highest-scoring
Top 50 of 1,719- 195014in Cupertino · 60,932 residents76.84
- 294539in Fremont · 52,396 residents76.67
- 394024in Los Altos · 23,051 residents76.20
- 494022in Los Altos Hills · 20,027 residents76.18
- 594065in Redwood City · 11,673 residents75.76
- 694404in Foster City · 35,881 residents75.48
- 794582in San Ramon · 47,424 residents75.45
- 891108in San Marino · 12,401 residents75.45
- 995070in Saratoga · 31,417 residents75.30
- 1094304in Palo Alto · 5,000 residents74.95
- 1195135in San Jose · 20,129 residents74.81
- 1292014in Del Mar · 13,105 residents74.70
- 1394087in Sunnyvale · 57,767 residents74.50
- 1494129in San Francisco · 3,836 residents74.46
- 1592130in San Diego · 60,768 residents74.34
- 1694707in Berkeley · 12,811 residents73.68
- 1792127in San Diego · 50,555 residents73.51
- 1892657in Newport Coast · 9,920 residents73.44
- 1994563in Orinda · 19,378 residents73.28
- 2094027in Atherton · 7,002 residents73.25
- 2194306in Palo Alto · 27,183 residents73.06
- 2294568in Dublin · 70,803 residents72.96
- 2392620in Irvine · 61,631 residents72.90
- 2494301in Palo Alto · 17,508 residents72.90
- 2591011in La Cañada Flintridge · 19,935 residents72.85
- 2694708in Berkeley · 11,947 residents72.84
- 2795129in San Jose · 41,321 residents72.84
- 2895120in San Jose · 36,967 residents72.74
- 2994040in Mountain View · 35,632 residents72.63
- 3094502in Alameda · 13,430 residents72.56
- 3194402in San Mateo · 25,475 residents72.53
- 3294131in San Francisco · 28,504 residents72.43
- 3390274in Palos Verdes Estates · 25,059 residents72.39
- 3494588in Pleasanton · 34,328 residents72.39
- 3592602in Irvine · 28,261 residents72.31
- 3692131in San Diego · 35,503 residents72.25
- 3794010in Hillsborough · 43,025 residents72.25
- 3894105in San Francisco · 13,861 residents72.17
- 3994043in Mountain View · 33,176 residents72.16
- 4094114in San Francisco · 33,020 residents72.15
- 4194127in San Francisco · 20,288 residents72.14
- 4290266in Manhattan Beach · 34,210 residents72.07
- 4394002in Belmont · 27,534 residents72.01
- 4494506in Danville · 27,055 residents72.00
- 4592603in Irvine · 18,387 residents71.98
- 4694086in Sunnyvale · 49,746 residents71.97
- 4794618in Oakland · 16,958 residents71.90
- 4891105in Pasadena · 12,531 residents71.89
- 4990094in Playa Vista · 11,764 residents71.88
- 5094920in Tiburon · 12,609 residents71.78
Lowest-scoring
Bottom 50 of 1,719- 1,71992266in Palo Verde · 99 residents20.77
- 1,71893241in Lamont · 15,250 residents21.50
- 1,71793240in Lake Isabella · 5,981 residents21.55
- 1,71692283in Winterhaven · 1,732 residents23.10
- 1,71592257in Niland · 2,158 residents23.19
- 1,71492259in Ocotillo · 198 residents23.61
- 1,71393624in Five Points · 735 residents24.24
- 1,71293668in Tranquillity · 741 residents24.58
- 1,71193721in Fresno · 7,225 residents25.26
- 1,71095374in Stevinson · 1,921 residents25.32
- 1,70993261in Richgrove · 2,005 residents25.52
- 1,70892401in San Bernardino · 1,659 residents25.66
- 1,70793701in Fresno · 9,808 residents25.77
- 1,70693706in Fresno · 40,638 residents25.98
- 1,70593305in Bakersfield · 37,714 residents26.09
- 1,70493673in Traver · 348 residents26.24
- 1,70393627in Helm · 451 residents26.27
- 1,70292281in Westmorland · 2,082 residents27.07
- 1,70193622in Firebaugh · 9,084 residents27.19
- 1,70095968in Palermo · 1,364 residents27.31
- 1,69993646in Orange Cove · 10,328 residents27.61
- 1,69893702in Fresno · 43,875 residents27.71
- 1,69795546in Hoopa · 2,397 residents27.87
- 1,69693640in Mendota · 14,657 residents27.90
- 1,69593660in San Joaquin · 4,086 residents28.08
- 1,69493266in Stratford · 1,612 residents28.22
- 1,69393666in Sultana · 633 residents28.32
- 1,69290073in Los Angeles · 1,079 residents28.40
- 1,69196090in Tehama · 366 residents28.52
- 1,69093528in Johannesburg · 86 residents28.69
- 1,68993608in Cantua Creek · 683 residents28.92
- 1,68893212in Corcoran · 23,142 residents28.93
- 1,68793234in Huron · 6,519 residents29.03
- 1,68693272in Tipton · 3,818 residents29.07
- 1,68593307in Bakersfield · 85,945 residents29.10
- 1,68493201in Alpaugh · 1,134 residents29.10
- 1,68395428in Covelo · 2,347 residents29.20
- 1,68296023in Dorris · 1,178 residents29.32
- 1,68193519in Cantil · 19 residents29.47
- 1,68092222in Bard · 0 residents29.87
- 1,67993203in Arvin · 20,712 residents29.99
- 1,67895202in Stockton · 7,066 residents30.01
- 1,67792327in Daggett · 576 residents30.05
- 1,67692274in Thermal · 18,167 residents30.22
- 1,67593703in Fresno · 33,420 residents30.36
- 1,67492239in Desert Center · 144 residents30.43
- 1,67393250in McFarland · 15,599 residents30.45
- 1,67290058in Vernon · 3,585 residents30.50
- 1,67193615in Cutler · 5,764 residents30.77
- 1,67093304in Bakersfield · 51,037 residents30.77
What the distribution shows
Across California’s 1,756 ZIP codes, the ZipVitals Score spans a wide range. 1,719 of them carry enough measured coverage across all nine health domains to enter the population-weighted composite above; the rest are held out rather than filled from a coarser geography.
Assembled from the same ZIP-level data as every per-ZIP page. Read the full method →
Where California stands, domain by domain
The ZipVitals Score above combines nine domains of health into one number. This is where California's ZIP codes sit against ZIP codes across the country on each of them, weighted by how many residents live in each one — strongest at the top.
Chronic Disease Burden · 85th
Weighted by residents, this state’s ZIP codes sit around the 85th percentile of US ZIP codes here — its highest of the nine scoring domains.
Environmental Hazard · 26th
Weighted by residents, this state’s ZIP codes sit around the 26th percentile of US ZIP codes here — its lowest of the nine scoring domains.
Read each bar as a national percentile from 0 to 100. The dark line marks the national median: a bar past it means California's ZIP codes typically place above most ZIP codes in the country on that domain. A domain California cannot place honestly is shown greyed as "Not enough data" rather than given a number.
Each figure is the population-weighted average of this state's ZIP codes' standing on that domain, compared with the ZIP codes measured across all nine scoring domains — not with all US ZIP codes. A ZIP code counts toward a domain only if it carries enough measured data on it and enough of California's residents live in the ZIP codes that do; the rest are held out rather than filled in from a coarser geography. Read the full method →
Why this matters
The ZipVitals Score combines nine domains of health — from chronic disease and preventive care to environmental hazard, social need, and healthcare access — into one 0–100 index for each ZIP code, computed the same way everywhere from public federal and academic data. The California figures on this page are population-weighted rollups of those per-ZIP scores, so they describe California's residents rather than a coarser geography relabeled as the state.
A high score describes favorable documented conditions; it is not a claim about individual residents, and it does not capture everything that shapes a community's health. Where a ZIP code scores low, that pattern reflects structural conditions — investment, environment, and access — far more than the choices of the people who live there.