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Compare ZIP codes side by side

Line up 2–5 ZIP codes and read the ZipVitals Score, both ranks, and every scoring domain against the same national scale. Descriptive of documented conditions — never a verdict on the people who live there.

Comparing94539Fremont, CA94087Sunnyvale, CA
2–5 ZIPs · 2 selected
ZipVitals Score and its national and state ranks, compared across 2 ZIP codes. Higher is healthier. The nine scoring domains follow, one table each.
Metric
Fremont94539 · CA
Sunnyvale94087 · CA
ZipVitals Score76.67 Leads74.50
National rank#5of 32,066 US ZIPs Leads#66of 32,066 US ZIPs
State rank#2of 1,719 CA ZIPs#13of 1,719 CA ZIPs
Metro rank#1of 174 ZIPs in its metro area#7of 61 ZIPs in its metro area

ZipVitals Score — Composite of 9 scoring domainsNational rank, State rank and Metro rank — Among ZIPs with a computed score

Metro areas — 94539: San Francisco-Oakland-Fremont, CA · 94087: San Jose-Sunnyvale-Santa Clara, CA.

Where these ZIPs differ, domain by domain

Nine domains make up the ZipVitals Score. Each one is placed on the same national scale, and the domains where these ZIPs are furthest apart come first. Higher is healthier in every one.

Compared with the ZIP codes measured across all nine scoring domains — not with all US ZIP codes. How the score works, and who it compares you with ›

Every ranking, bar and gap below is measured against the same national group. Where a ZIP’s line also mentions its state or its metro area, that figure is measured against a different group — its own — so it is context for that one ZIP and never a comparison between them.

Furthest apart first

all 2 ZIPs can be placed on these 9 domains
Healthcare Access5% of the score 94087 leads · 7-point gap
94087Sunnyvalehealthier than 91% · 81% in California, 87% in its metro area1 of 2
94539Fremonthealthier than 84% · 66% in California, 53% in its metro area2 of 2
Preventive Care13% of the score 94539 leads · 3-point gap
94539Fremonthealthier than 63% · 80% in California, 66% in its metro area1 of 2
94087Sunnyvalehealthier than 60% · 78% in California, 82% in its metro area2 of 2
Climate / Disaster Risk5% of the score 94539 leads · 3-point gap
94539Fremonthealthier than 91% · 79% in California, 58% in its metro area1 of 2
94087Sunnyvalehealthier than 88% · 73% in California, 87% in its metro area2 of 2
Environmental Hazard14% of the score 94539 leads · 2-point gap
94539Fremonthealthier than 14% · 43% in California, 4% in its metro area1 of 2
94087Sunnyvalehealthier than 12% · 41% in California, 55% in its metro area2 of 2
Mental Health8% of the score 94539 leads · 2-point gap
94539Fremontin the top 0.2% · 100% in California, 100% in its metro area1 of 2
94087Sunnyvalehealthier than 98% · 98% in California, 88% in its metro area2 of 2
Social Need / SDOH16% of the score 94539 leads · 1-point gap
94539Fremonthealthier than 97% · 95% in California, 75% in its metro area1 of 2
94087Sunnyvalehealthier than 96% · 94% in California, 78% in its metro area2 of 2
Disability7% of the score 94539 leads · 1-point gap
94539Fremontin the top 0.3% · 100% in California, 97% in its metro area1 of 2
94087Sunnyvalein the top 0.7% · 99% in California, 93% in its metro area2 of 2
Chronic Disease Burden21% of the scoretied — no single leader
94539Fremonthealthier than 98% · 96% in California, 90% in its metro area=1 of 2
94087Sunnyvalehealthier than 98% · 96% in California, 77% in its metro area=1 of 2
Risk Behavior11% of the scoretied — no single leader
94539Fremontin the top 0.8% · 98% in California, 95% in its metro area=1 of 2
94087Sunnyvalein the top 0.8% · 98% in California, 83% in its metro area=1 of 2

“Of the score” is the domain’s weight in the ZipVitals Score — a property of the score itself, the same on every ZIP. A gap is the distance between the highest and lowest of these ZIPs on that domain’s national scale. Percentages are rounded; higher is healthier in every domain.

Data release 2026 · higher is healthier on every row. How the ZipVitals Score is calculated →

The State rank and Metro rank rows show no “Leads” marker: each ZIP is ranked against the ZIPs in its own state and the ZIPs in its own metro area, so those ranks are not ordered against one another.

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ZipVitalsZipVitals Score · compare

Fremont vs. Sunnyvale

Fremont 94539 · CALEADS76.67
Sunnyvale 94087 · CA74.50

Data release 2026 · public federal and academic sources · higher is healthier

Preview of the auto-generated share card · ZipVitals Score, 0–100