ZIP code
04978
in Smithfield, MainePopulation 856
49.83/ 100
Ranked #16,482 of 32,066 US ZIPs (bottom 49%)
Ranked #188 of 408 Maine ZIPs (top 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
21.4%
in the top 5.8% nationally
Lower is healthier
ST75thUS94thDefinition & 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 ›Colon-cancer screening
74.6%
in the top 3.7% nationally
Higher is healthier
ST86thUS96thDefinition & source ›
The estimated share of adults aged 45–75 who are up to date on colorectal-cancer screening.
Full methodology ›Housing-cost burden
9.0%
in the bottom 8.2% nationally
Lower is healthier
ST5thUS8thDefinition & source ›
The share of households spending 30% or more of their income on housing.
Full methodology ›Median household income
$107,917
in the top 14.4% nationally
Higher is healthier
ST93rdUS86thDefinition & 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, Smithfield, Maine (ZIP 04978) lands in the bottom 49% nationally (16,482nd) and the top 46% of Maine (188th), based on limited data; treat as directional.
Taken together, the data gives a genuinely mixed reading: modeled colon screening sits in the top 3.7% nationally, and housing-cost burden lands in the bottom 8.2% nationally. Modeled extreme heat lies at the national minimum, shared with about 19% of ZIPs. Modeled loud transportation noise stands at the national minimum, shared with about 22% of ZIPs. Modeled humid heat rests in the bottom 15.0% nationally, and home broadband subscription registers in the top 15.0% nationally. On the other side, modeled arsenic resides in the top 5.8% nationally. Recreation settles at the national minimum, shared with about 35% of ZIPs. Modeled high cholesterol is in the top 15% nationally. Physicians sits at the national minimum, shared with about 38% of ZIPs.
Put simply, arsenic is a natural groundwater contaminant, here a modeled estimate of the chance private-well levels exceed a benchmark. Extreme heat is a modeled count of days a year reaching a dangerously high temperature, a leading weather hazard. Loud transportation noise is the modeled share of an area exposed to road, rail, and air noise at or above 65 decibels, near conversation volume. On the overall standing, ZIP 04917, just across the boundary, 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.
Compared with the ZIP codes measured across all nine scoring domains — not with all US ZIP codes.
Lifting this score
Environmental Hazard
healthier than 68%
14%
Preventive Care
healthier than 91%
13%
Risk Behavior
healthier than 71%
11%
Climate / Disaster RiskPartial
healthier than 98%
5%
About typical
Disability
healthier than 44%
7%
Holding it back
Chronic Disease Burden
healthier than 20%
21%
Social Need / SDOH
healthier than 33%
16%
Mental Health
healthier than 20%
8%
Healthcare Access
healthier than 31%
5%
Lifting this score
Preventive Care
healthier than 72%
13%
Climate / Disaster RiskPartial
healthier than 98%
5%
About typical
Social Need / SDOH
healthier than 50%
16%
Environmental Hazard
healthier than 52%
14%
Risk Behavior
healthier than 45%
11%
Mental Health
healthier than 45%
8%
Healthcare Access
healthier than 44%
5%
Holding it back
Chronic Disease Burden
healthier than 24%
21%
Disability
healthier than 37%
7%
“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
04917
Maineshares a border
Score 58.26
Closest healthier
04963
Maineshares a border
Score 51.96
Similar health profile
49130
Michigan98% similar profile
Score 49.53
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 | 35.8% | 32.6–39.0 |
| High blood pressure among adults | 38.6% | 35.2–42.1 |
| Cancer (non-skin) or melanoma among adults | 10.8% | 9.8–12.0 |
| Current asthma among adults | 13.1% | 11.6–14.6 |
| Coronary heart disease among adults | 8.7% | 7.5–10.0 |
| Chronic obstructive pulmonary disease among adults | 9.9% | 7.9–11.8 |
| Depression among adults | 27.4% | 24.3–30.6 |
| Diagnosed diabetes among adults | 12.9% | 11.1–14.8 |
| High cholesterol among adults who have ever been screened | 42.1% | 38.6–45.5 |
| Obesity among adults | 34.7% | 30.0–39.8 |
| Stroke among adults | 4.1% | 3.4–4.7 |
| All teeth lost among adults aged >=65 years | 16.7% | 13.9–19.8 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 7.5% | 5.6–10.0 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 77.4% | 74.4–80.3 |
| Visits to doctor for routine checkup within the past year among adults | 83.9% | 81.3–86.2 |
| Cholesterol screening among adults | 88.9% | 87.0–90.7 |
| Colorectal cancer screening among adults aged 45–75 years | 74.6% | 71.2–77.9 |
| Visited dentist or dental clinic in the past year among adults | 67.7% | 64.9–70.5 |
| Mammography use among women aged 50-74 years | 78.7% | 73.4–83.4 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 13.8% | 11.6–16.2 |
| Current cigarette smoking among adults | 16.3% | 12.8–20.1 |
| No leisure-time physical activity among adults | 24.4% | 20.2–28.9 |
| Short sleep duration among adults | 33.8% | 30.0–38.0 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 20.2% | 16.7–23.9 |
| Frequent mental distress among adults | 17.6% | 15.4–20.1 |
| Frequent physical distress among adults | 15.7% | 13.5–18.1 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 15.5% | 13.0–18.3 |
| Any disability among adults | 34.3% | 29.7–39.0 |
| Hearing disability among adults | 9.3% | 8.1–10.6 |
| Independent living disability among adults | 8.6% | 7.1–10.2 |
| Mobility disability among adults | 15.8% | 13.0–18.6 |
| Self-care disability among adults | 4.0% | 3.3–4.8 |
| Vision disability among adults | 4.7% | 3.9–5.6 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 22.2% | 19.0–26.1 |
| Food insecurity in the past 12 months among adults | 10.6% | 7.8–13.7 |
| Received food stamps in the past 12 months among adults | 14.5% | 10.6–18.5 |
| Housing insecurity in the past 12 months among adults | 9.5% | 7.5–11.8 |
| Lack of reliable transportation in the past 12 months among adults | 7.4% | 6.0–9.0 |
| Loneliness among adults | 32.7% | 28.8–37.1 |
| Utility services shut-off threat in the past 12 months among adults | 7.6% | 6.1–9.2 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | ME median (p10–p90) |
|---|---|---|---|
| Poverty rate | 5.8% | 10.6% (3.1–25.8%) n=32,364 | 10.3% (3.2–19.5%) n=416 |
| Uninsured 18–64 | 1.2% | 9.0% (1.5–24.3%) n=32,286 | 9.8% (3.0–20.9%) n=413 |
| No HS diploma (25+) | 5.5% | 7.9% (1.8–20.7%) n=32,505 | 5.2% (0.8–11.7%) n=417 |
| Bachelor's or higher (25+) | 34.7% | 23.3% (9.2–53.6%) n=32,505 | 29.4% (14.9–57.3%) n=417 |
| Unemployment rate (16+) | 5.3% | 3.9% (0.0–9.8%) n=32,274 | 3.1% (0.0–8.3%) n=415 |
| Households without a vehicle | 2.9% | 3.9% (0.0–12.5%) n=32,322 | 3.7% (0.0–11.5%) n=416 |
| Broadband subscription | 95.9% | 89.3% (75.1–97.1%) n=32,322 | 89.9% (79.7–97.2%) n=416 |
| Housing cost burden (≥30% income) | 9.0% | 23.7% (10.6–40.0%) n=32,322 | 23.4% (13.9–35.0%) n=416 |
| Homeownership rate | 88.9% | 78.7% (51.7–94.0%) n=32,322 | 84.7% (68.7–95.5%) n=416 |
| Crowded housing (>1 per room) | 1.0% | 1.3% (0.0–6.3%) n=32,322 | 0.8% (0.0–3.4%) n=416 |
| Foreign-born population | 1.2% | 2.6% (0.0–18.6%) n=32,553 | 2.1% (0.1–5.9%) n=417 |
| Single-parent households | 77.3% | 53.6% (37.3–74.1%) n=32,087 | 61.5% (48.8–80.6%) n=414 |
| Population 65+ | 29.7% | 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 | $107,917 | $72,070 ($46,039–$118,707) n=30,318 | $68,485 ($50,225–$100,018) n=396 |
| Median home value | $242,800 | $222,200 ($100,300–$579,820) n=30,049 | $246,500 ($130,660–$484,830) n=402 |
| Median gross rent | $1,109 | $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 | 79.4 yr ± 1.78 | 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 1.78 years of 79.4, 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