ZIP code
04579
in Woolwich, MainePopulation 3,158
55.95/ 100
Ranked #8,332 of 32,066 US ZIPs (top 26%)
Ranked #78 of 408 Maine ZIPs (top 19%)
Ranked #44 of 82 Portland-South Portland, ME ZIPs (bottom 46%)
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.
Arsenic in groundwater
45.1%
in the top 1.1% nationally
Lower is healthier
ST96thUS99thDefinition & 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 ›Short sleep
29.3%
in the bottom 6.8% nationally
Lower is healthier
ST18thUS7thDefinition & source ›
The estimated share of adults who usually sleep less than seven hours in a 24-hour period.
Full methodology ›Homeownership rate
95.5%
in the top 8.0% nationally
Higher is healthier
ST90thUS92ndDefinition & source ›
The share of occupied homes that are owned, rather than rented, by the people living in them.
Full methodology ›Humid extreme heat
11.8 days/year
in the bottom 8.7% nationally
Lower is healthier
ST39thUS9thDefinition & source ›
The average number of days per year when modeled heat stress — temperature, humidity, sun, and wind combined — reaches levels hard on the body outdoors.
Full methodology ›Loud transportation noise
0.87%
in the top 23% nationally
Lower is healthier
ST93rdUS77thDefinition & source ›
The modeled share of residents exposed to average road, rail, and aviation noise at or above 65 decibels — around the volume of normal conversation.
Full methodology ›Median household income
$102,175
in the top 18% nationally
Higher is healthier
ST91stUS82ndDefinition & source ›
The middle household income in this ZIP — half of households earn more, half earn less — in dollars per year.
Full methodology ›The read
In its overall standing, Woolwich, Maine (ZIP 04579) lands in the top 26% healthiest ZIPs nationally (8,332nd) and the top 19% of Maine (78th).
Reading the numbers as a whole, the picture lands somewhere in between: modeled short sleep is in the bottom 6.8% nationally, homeownership sits in the top 8.0% nationally, and modeled humid heat lands in the bottom 8.7% nationally. Modeled extreme heat lies at the national minimum, shared with about 19% of ZIPs. Modeled food insecurity stands in the bottom 10.4% nationally, and loneliness rests in the bottom 12.4% nationally. Modeled tree cover registers in the top 13.9% nationally, and housing insecurity resides in the bottom 14.3% nationally. Crowded housing settles at the national minimum, shared with about 29% of ZIPs. On the other side, modeled arsenic is in the top 1.1% nationally.
Against the wider neighborhood, park land runs far higher than the surrounding ZIPs on this measure. Put simply, arsenic is a natural groundwater contaminant, here a modeled estimate of the chance private-well levels exceed a benchmark. Humid heat is a modeled heat-stress measure combining temperature, humidity, sun, and wind to gauge heat on the body outdoors. Extreme heat is a modeled count of days a year reaching a dangerously high temperature, a leading weather hazard. On the overall standing, ZIP 04086, about 1.5 miles away, ranks healthier.
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 Portland-South Portland, ME metro area.
Compared with the ZIP codes measured across all nine scoring domains — not with all US ZIP codes.
Lifting this score
Preventive Care
healthier than 89%
13%
Risk Behavior
healthier than 88%
11%
Disability
healthier than 70%
7%
About typical
Chronic Disease Burden
healthier than 50%
21%
Social Need / SDOH
healthier than 54%
16%
Environmental Hazard
healthier than 54%
14%
Climate / Disaster Risk
healthier than 55%
5%
Healthcare Access
healthier than 52%
5%
Holding it back
Mental Health
healthier than 38%
8%
Lifting this score
Chronic Disease Burden
healthier than 73%
21%
Social Need / SDOH
healthier than 73%
16%
Preventive Care
healthier than 66%
13%
Risk Behavior
healthier than 73%
11%
Mental Health
healthier than 71%
8%
Disability
healthier than 75%
7%
Healthcare Access
healthier than 75%
5%
Holding it back
Environmental Hazard
healthier than 31%
14%
Climate / Disaster Risk
healthier than 32%
5%
Lifting this score
Environmental Hazard
healthier than 64%
14%
Risk Behavior
healthier than 63%
11%
Mental Health
healthier than 60%
8%
Healthcare Access
healthier than 66%
5%
About typical
Chronic Disease Burden
healthier than 49%
21%
Social Need / SDOH
healthier than 40%
16%
Preventive Care
healthier than 56%
13%
Disability
healthier than 49%
7%
Holding it back
Climate / Disaster Risk
healthier than 36%
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
04008
Maineshares a border
Score 52.64
Closest healthier
04086
Maineabout 1.5 mi away
Score 55.98
Similar health profile
04605
Maine98% similar profile
Score 55.64
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 | 33.4% | 30.2–36.7 |
| High blood pressure among adults | 34.9% | 31.3–38.4 |
| Cancer (non-skin) or melanoma among adults | 10.6% | 9.6–11.7 |
| Current asthma among adults | 12.3% | 10.9–13.9 |
| Coronary heart disease among adults | 7.4% | 6.3–8.7 |
| Chronic obstructive pulmonary disease among adults | 7.7% | 6.0–9.7 |
| Depression among adults | 26.9% | 23.7–30.2 |
| Diagnosed diabetes among adults | 10.7% | 9.0–12.6 |
| High cholesterol among adults who have ever been screened | 39.2% | 35.7–42.6 |
| Obesity among adults | 29.6% | 24.9–34.4 |
| Stroke among adults | 3.5% | 2.9–4.1 |
| All teeth lost among adults aged >=65 years | 10.7% | 8.8–13.2 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 6.5% | 4.6–8.6 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 77.1% | 73.8–80.0 |
| Visits to doctor for routine checkup within the past year among adults | 82.9% | 80.3–85.4 |
| Cholesterol screening among adults | 89.5% | 87.5–91.3 |
| Colorectal cancer screening among adults aged 45–75 years | 70.4% | 66.7–74.3 |
| Visited dentist or dental clinic in the past year among adults | 67.9% | 64.9–71.1 |
| Mammography use among women aged 50-74 years | 79.4% | 73.6–84.8 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 15.4% | 13.0–17.8 |
| Current cigarette smoking among adults | 13.2% | 9.9–16.7 |
| No leisure-time physical activity among adults | 20.6% | 16.4–25.0 |
| Short sleep duration among adults | 29.3% | 25.4–33.8 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 16.3% | 13.1–19.9 |
| Frequent mental distress among adults | 15.5% | 13.3–17.7 |
| Frequent physical distress among adults | 13.4% | 11.2–15.8 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 13.2% | 10.9–15.8 |
| Any disability among adults | 28.6% | 24.2–33.2 |
| Hearing disability among adults | 8.0% | 6.8–9.3 |
| Independent living disability among adults | 7.1% | 5.8–8.7 |
| Mobility disability among adults | 13.2% | 10.6–16.2 |
| Self-care disability among adults | 3.3% | 2.6–4.1 |
| Vision disability among adults | 4.0% | 3.2–4.8 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 19.7% | 16.4–22.9 |
| Food insecurity in the past 12 months among adults | 8.6% | 6.1–11.3 |
| Received food stamps in the past 12 months among adults | 11.1% | 7.8–14.8 |
| Housing insecurity in the past 12 months among adults | 7.8% | 5.8–10.0 |
| Lack of reliable transportation in the past 12 months among adults | 6.3% | 4.9–7.7 |
| Loneliness among adults | 28.8% | 24.8–32.6 |
| Utility services shut-off threat in the past 12 months among adults | 6.5% | 5.0–8.0 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | ME median (p10–p90) |
|---|---|---|---|
| Poverty rate | 13.3% | 10.6% (3.1–25.8%) n=32,364 | 10.3% (3.2–19.5%) n=416 |
| Uninsured 18–64 | 2.3% | 9.0% (1.5–24.3%) n=32,286 | 9.8% (3.0–20.9%) n=413 |
| No HS diploma (25+) | 5.6% | 7.9% (1.8–20.7%) n=32,505 | 5.2% (0.8–11.7%) n=417 |
| Bachelor's or higher (25+) | 52.9% | 23.3% (9.2–53.6%) n=32,505 | 29.4% (14.9–57.3%) n=417 |
| Unemployment rate (16+) | 1.8% | 3.9% (0.0–9.8%) n=32,274 | 3.1% (0.0–8.3%) n=415 |
| Households without a vehicle | 5.5% | 3.9% (0.0–12.5%) n=32,322 | 3.7% (0.0–11.5%) n=416 |
| Broadband subscription | 94.5% | 89.3% (75.1–97.1%) n=32,322 | 89.9% (79.7–97.2%) n=416 |
| Housing cost burden (≥30% income) | 25.3% | 23.7% (10.6–40.0%) n=32,322 | 23.4% (13.9–35.0%) n=416 |
| Homeownership rate | 95.5% | 78.7% (51.7–94.0%) n=32,322 | 84.7% (68.7–95.5%) n=416 |
| Crowded housing (>1 per room) | 0.0% | 1.3% (0.0–6.3%) n=32,322 | 0.8% (0.0–3.4%) n=416 |
| Foreign-born population | 2.6% | 2.6% (0.0–18.6%) n=32,553 | 2.1% (0.1–5.9%) n=417 |
| Single-parent households | 72.3% | 53.6% (37.3–74.1%) n=32,087 | 61.5% (48.8–80.6%) n=414 |
| Population 65+ | 33.9% | 19.4% (10.8–33.6%) n=32,553 | 24.6% (16.3–42.1%) n=417 |
| Median age | 55.8 yr | 42.2 yr (33.0–56.3) n=32,292 | 49.0 yr (39.3–60.7) n=413 |
| Median household income | $102,175 | $72,070 ($46,039–$118,707) n=30,318 | $68,485 ($50,225–$100,018) n=396 |
| Median home value | $254,500 | $222,200 ($100,300–$579,820) n=30,049 | $246,500 ($130,660–$484,830) n=402 |
| Median gross rent | — | $1,021 ($677–$1,912) n=25,670 | $1,014 ($618–$1,501) n=320 |
Life expectancyNCHS / RWJF USALEEP · model-based
| Measure | Value | US median (p10–p90) | ME median (p10–p90) |
|---|---|---|---|
| Life expectancy at birth | 84.5 yr ± 2.07 | 78.9 yr (74.7–82.8) n=31,308 | 79.0 yr (76.1–82.5) n=363 |
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 2.07 years of 84.5, 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