ZIP code
02645
in Harwich, MassachusettsPopulation 11,288
63.66/ 100
Ranked #2,629 of 32,066 US ZIPs (top 8.2%)
Ranked #164 of 527 Massachusetts ZIPs (top 31%)
Ranked #21 of 47 Barnstable Town, MA ZIPs (top 45%)
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.
PFAS in drinking water
78.2%
in the top 2.3% nationally
Lower is healthier
ST96thUS98thDefinition & 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 ›Colon-cancer screening
76.6%
in the top 1.3% nationally
Higher is healthier
ST91stUS99thDefinition & source ›
The estimated share of adults aged 45–75 who are up to date on colorectal-cancer screening.
Full methodology ›Mammography
83.6%
in the top 1.7% nationally
Higher is healthier
ST47thUS98thDefinition & source ›
The estimated share of women aged 50–74 who had a mammogram within the past two years.
Full methodology ›Obesity
25.9%
in the bottom 7.0% nationally
Lower is healthier
ST38thUS7thDefinition & source ›
The estimated share of adults with obesity, defined as a body-mass index of 30 or higher.
Full methodology ›Industrial-pollution burden
in the bottom 5.2% nationally
Lower is healthier
ST1stUS5thDefinition & source ›
The EPA’s modeled screening score for industrial chemical releases, weighting the amounts released by their toxicity and how many people live nearby — a relative comparison score, not a measured exposure.
Full methodology ›Distance to a hazardous-chemical facility
18.3 mi
in the top 5.7% nationally
Higher is healthier
ST96thUS94thDefinition & 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 ›Food insecurity
7.6%
in the bottom 5.8% nationally
Lower is healthier
ST27thUS6thDefinition & source ›
The estimated share of adults who experienced food insecurity in the past 12 months.
Full methodology ›Outer-floodplain exposure
5.7%
in the top 6.6% nationally
Lower is healthier
ST91stUS93rdDefinition & 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 ›Air-toxics cancer risk
18.3 per million
in the bottom 6.8% nationally
Lower is healthier
ST2ndUS7thDefinition & 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 insecurity
7.0%
in the bottom 7.4% nationally
Lower is healthier
ST26thUS7thDefinition & source ›
The estimated share of adults who experienced housing insecurity in the past 12 months.
Full methodology ›The read
Harwich, Massachusetts (ZIP 02645), by its composite score, sits in the top 8.2% healthiest ZIPs nationally (2,629th) and the top 31% of Massachusetts (164th).
The measures fall on both sides for this area, fairly evenly: modeled colon screening rests in the top 1.3% nationally, and mammography resides in the top 1.7% nationally. Modeled obesity is in the bottom 7.0% nationally, and industrial-pollution burden lands in the bottom 5.2% nationally. Distance to a hazardous-chemical facility stands in the top 5.7% nationally, modeled food insecurity registers in the bottom 5.8% nationally, and modeled air-toxics cancer risk settles in the bottom 6.8% nationally. Modeled housing insecurity sits in the bottom 7.4% nationally. Pulling the other way, modeled pfas lies in the top 2.3% nationally, and outer-floodplain exposure rests in the top 6.6% nationally.
Next to the surrounding area, park land runs far higher than the surrounding ZIPs on this measure. For anyone unfamiliar, 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. Industrial-pollution burden is the EPA's modeled screening score weighting industrial chemical releases by their toxicity and how many people live nearby. 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. For a healthier comparison close by, see ZIP 02633, 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 Barnstable Town, MA metro area.
Compared with the ZIP codes measured across all nine scoring domains — not with all US ZIP codes.
Lifting this score
Social Need / SDOH
healthier than 79%
16%
Environmental Hazard
healthier than 68%
14%
Preventive Care
in the top 0.3%
13%
Risk Behavior
healthier than 96%
11%
Mental Health
healthier than 79%
8%
Disability
healthier than 79%
7%
Climate / Disaster Risk
healthier than 76%
5%
Healthcare Access
healthier than 76%
5%
About typical
Chronic Disease Burden
healthier than 50%
21%
Nothing measured is holding this score back.
Lifting this score
Environmental Hazard
healthier than 86%
14%
Preventive Care
healthier than 93%
13%
Risk Behavior
healthier than 85%
11%
Mental Health
healthier than 80%
8%
Climate / Disaster Risk
healthier than 80%
5%
Healthcare Access
healthier than 63%
5%
About typical
Social Need / SDOH
healthier than 56%
16%
Holding it back
Chronic Disease Burden
healthier than 15%
21%
Disability
healthier than 40%
7%
Lifting this score
Chronic Disease Burden
healthier than 60%
21%
Disability
healthier than 60%
7%
Climate / Disaster Risk
healthier than 89%
5%
Healthcare Access
healthier than 77%
5%
About typical
Social Need / SDOH
healthier than 43%
16%
Preventive Care
healthier than 43%
13%
Risk Behavior
healthier than 51%
11%
Mental Health
healthier than 49%
8%
Holding it back
Environmental Hazard
healthier than 26%
14%
“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
02631
Massachusettsshares a border
Score 63.16
Closest healthier
02633
Massachusettsshares a border
Score 66.47
Similar health profile
06412
Connecticut99% similar profile
Score 59.18
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 | 35.3% | 32.1–38.7 |
| High blood pressure among adults | 37.5% | 33.9–41.3 |
| Cancer (non-skin) or melanoma among adults | 13.4% | 12.2–14.6 |
| Current asthma among adults | 11.6% | 10.3–12.9 |
| Coronary heart disease among adults | 7.6% | 6.7–8.4 |
| Chronic obstructive pulmonary disease among adults | 6.8% | 5.9–7.8 |
| Depression among adults | 22.6% | 19.5–25.8 |
| Diagnosed diabetes among adults | 10.2% | 8.8–11.7 |
| High cholesterol among adults who have ever been screened | 39.7% | 35.8–43.7 |
| Obesity among adults | 25.9% | 21.2–31.0 |
| Stroke among adults | 3.6% | 3.3–4.0 |
| All teeth lost among adults aged >=65 years | 7.8% | 6.1–9.6 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 3.4% | 2.8–4.0 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 82.9% | 80.2–85.2 |
| Visits to doctor for routine checkup within the past year among adults | 85.4% | 82.9–87.7 |
| Cholesterol screening among adults | 93.4% | 92.4–94.3 |
| Colorectal cancer screening among adults aged 45–75 years | 76.6% | 72.4–80.3 |
| Visited dentist or dental clinic in the past year among adults | 75.9% | 72.9–78.8 |
| Mammography use among women aged 50-74 years | 83.6% | 77.8–88.4 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 14.1% | 11.7–16.7 |
| Current cigarette smoking among adults | 10.2% | 8.5–11.9 |
| No leisure-time physical activity among adults | 18.2% | 15.2–21.5 |
| Short sleep duration among adults | 29.7% | 24.9–34.8 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 14.7% | 12.7–16.8 |
| Frequent mental distress among adults | 13.7% | 12.1–15.3 |
| Frequent physical distress among adults | 13.1% | 11.5–14.8 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 11.0% | 9.7–12.5 |
| Any disability among adults | 27.4% | 24.0–31.1 |
| Hearing disability among adults | 7.9% | 7.0–8.9 |
| Independent living disability among adults | 6.6% | 5.8–7.4 |
| Mobility disability among adults | 13.1% | 11.3–15.0 |
| Self-care disability among adults | 3.0% | 2.7–3.3 |
| Vision disability among adults | 3.6% | 3.2–4.0 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 20.7% | 17.8–23.7 |
| Food insecurity in the past 12 months among adults | 7.6% | 6.3–8.9 |
| Received food stamps in the past 12 months among adults | 8.7% | 7.2–10.1 |
| Housing insecurity in the past 12 months among adults | 7.0% | 5.9–8.1 |
| Lack of reliable transportation in the past 12 months among adults | 5.0% | 4.3–5.7 |
| Loneliness among adults | 29.9% | 25.9–33.9 |
| Utility services shut-off threat in the past 12 months among adults | 4.8% | 4.1–5.6 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | MA median (p10–p90) |
|---|---|---|---|
| Poverty rate | 4.5% | 10.6% (3.1–25.8%) n=32,364 | 6.4% (2.6–16.9%) n=524 |
| Uninsured 18–64 | 1.5% | 9.0% (1.5–24.3%) n=32,286 | 2.4% (0.0–6.3%) n=525 |
| No HS diploma (25+) | 2.1% | 7.9% (1.8–20.7%) n=32,505 | 4.7% (1.1–15.2%) n=526 |
| Bachelor's or higher (25+) | 46.6% | 23.3% (9.2–53.6%) n=32,505 | 45.7% (23.6–77.5%) n=526 |
| Unemployment rate (16+) | 3.3% | 3.9% (0.0–9.8%) n=32,274 | 4.4% (1.6–7.9%) n=523 |
| Households without a vehicle | 3.7% | 3.9% (0.0–12.5%) n=32,322 | 4.6% (0.4–20.2%) n=522 |
| Broadband subscription | 96.1% | 89.3% (75.1–97.1%) n=32,322 | 94.1% (87.2–98.4%) n=522 |
| Housing cost burden (≥30% income) | 28.3% | 23.7% (10.6–40.0%) n=32,322 | 30.5% (21.2–43.7%) n=522 |
| Homeownership rate | 84.4% | 78.7% (51.7–94.0%) n=32,322 | 79.1% (39.6–93.5%) n=522 |
| Crowded housing (>1 per room) | 0.0% | 1.3% (0.0–6.3%) n=32,322 | 1.1% (0.0–3.8%) n=522 |
| Foreign-born population | 4.0% | 2.6% (0.0–18.6%) n=32,553 | 8.7% (1.9–28.4%) n=527 |
| Single-parent households | 62.3% | 53.6% (37.3–74.1%) n=32,087 | 52.5% (40.0–68.7%) n=520 |
| Population 65+ | 33.7% | 19.4% (10.8–33.6%) n=32,553 | 19.4% (12.1–33.8%) n=527 |
| Median age | 57.3 yr | 42.2 yr (33.0–56.3) n=32,292 | 43.5 yr (34.3–57.2) n=524 |
| Median household income | $104,401 | $72,070 ($46,039–$118,707) n=30,318 | $110,450 ($68,196–$177,335) n=505 |
| Median home value | $648,200 | $222,200 ($100,300–$579,820) n=30,049 | $519,200 ($297,220–$949,670) n=508 |
| Median gross rent | $1,804 | $1,021 ($677–$1,912) n=25,670 | $1,659 ($1,104–$2,452) n=461 |
Life expectancyNCHS / RWJF USALEEP · model-based
| Measure | Value | US median (p10–p90) | MA median (p10–p90) |
|---|---|---|---|
| Life expectancy at birth | 78.9 yr ± 0.72 | 78.9 yr (74.7–82.8) n=31,308 | 81.3 yr (78.1–84.4) n=514 |
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 0.72 years of 78.9, 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