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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.

Comparing01432Ayer, MA19382West Chester, PA
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
Ayer01432 · MA
West Chester19382 · PA
ZipVitals Score57.8465.42 Leads
National rank#6,533of 32,066 US ZIPs#1,844of 32,066 US ZIPs Leads
State rank#345of 527 MA ZIPs#83of 1,748 PA ZIPs
Metro rank#219of 281 ZIPs in its metro area#73of 361 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 — 01432: Boston-Cambridge-Newton, MA-NH · 19382: Philadelphia-Camden-Wilmington, PA-NJ-DE-MD.

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 5 domains
Social Need / SDOH16% of the score 19382 leads · 21-point gap
19382West Chesterhealthier than 86% · no comparison group in Pennsylvania, 71% in its metro area1 of 2
01432Ayerhealthier than 65% · 39% in Massachusetts, 28% in its metro area2 of 2
Healthcare Access5% of the score 19382 leads · 21-point gap
19382West Chesterhealthier than 60% · no comparison group in Pennsylvania, 48% in its metro area1 of 2
01432Ayerhealthier than 39% · 10% in Massachusetts, 11% in its metro area2 of 2
Environmental Hazard14% of the score 01432 leads · 19-point gap
01432Ayerhealthier than 34% · 53% in Massachusetts, 61% in its metro area1 of 2
19382West Chesterhealthier than 15% · no comparison group in Pennsylvania, 15% in its metro area2 of 2
Climate / Disaster Risk5% of the score 19382 leads · 11-point gap
19382West Chesterhealthier than 53% · no comparison group in Pennsylvania, 53% in its metro area1 of 2
01432Ayerhealthier than 42% · 24% in Massachusetts, 23% in its metro area2 of 2
Preventive Care13% of the score 19382 leads · 6-point gap
19382West ChesterPartialhealthier than 98% · no comparison group in Pennsylvania, 100% in its metro area1 of 2
01432Ayerhealthier than 92% · 34% in Massachusetts, 41% in its metro area2 of 2

Not every ZIP can be placed here

no leader and no gap — ordered by weight instead
Chronic Disease Burden21% of the scoreno leader — 19382 cannot be placed here
01432Ayerhealthier than 74% · 48% in Massachusetts, 28% in its metro area1 of 1
19382West Chesternot placed — too little of this domain is measured here to compare reliably, though it still counts toward this ZIP’s score
Risk Behavior11% of the scoreno leader — 19382 cannot be placed here
01432Ayerhealthier than 79% · 48% in Massachusetts, 33% in its metro area1 of 1
19382West Chesternot placed — too little of this domain is measured here to compare reliably, though it still counts toward this ZIP’s score
Mental Health8% of the scoreno leader — 19382 cannot be placed here
01432Ayerhealthier than 33% · 30% in Massachusetts, 17% in its metro area1 of 1
19382West Chesternot measured in this ZIP at all — left out of its score rather than estimated
Disability7% of the scoreno leader — 19382 cannot be placed here
01432Ayerhealthier than 76% · 34% in Massachusetts, 20% in its metro area1 of 1
19382West Chesternot measured in this ZIP at all — left out of its score rather than estimated

“Of the score” is the domain’s weight in the ZipVitals Score — a property of the score itself, the same on every ZIP. Where a ZIP has no measurement for a domain, that domain drops out of its score and the remaining weights scale up, so its own mix differs slightly from the weights shown here; each ZIP’s own page carries its exact shares. 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

West Chester vs. Ayer

West Chester 19382 · PALEADS65.42
Ayer 01432 · MA57.84

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

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