ZIP code
03878
in Somersworth, New HampshirePopulation 12,205
56.30/ 100
Ranked #7,969 of 32,066 US ZIPs (top 25%)
Ranked #167 of 243 New Hampshire ZIPs (bottom 31%)
Ranked #233 of 281 Boston-Cambridge-Newton, MA-NH ZIPs (bottom 17%)
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.
Distance to a Superfund site
In this ZIP
at the national minimum
Higher is healthier
ST1stUS1stDefinition & source ›
The distance in miles from this ZIP’s edge to the nearest Superfund site — an abandoned or uncontrolled hazardous-waste site the EPA has listed for cleanup.
Full methodology ›Grocery access
0.25 per 1,000 residents
in the top 4.9% nationally
Higher is healthier
ST89thUS95thDefinition & source ›
The number of full supermarkets inside this ZIP’s boundary, per 1,000 residents.
Counted from establishments located inside this ZIP’s boundary, so one just across the line is not counted. Where a ZIP has too few residents for the density to be reliable, no value is published rather than an unreliable one. ZipVitals’s food-access signal is derived from these in-ZIP densities — it is not USDA’s food-desert designation, which measures distance to the nearest supermarket. Where a leg is missing, a ZIP reads “not determinable,” never “not a food desert.”
Full methodology ›Transit access
4.7 per 1,000 residents
in the top 5.6% nationally
Higher is healthier
ST98thUS94thDefinition & source ›
The number of public-transit stops inside this ZIP’s boundary, per 1,000 residents.
Counted from establishments located inside this ZIP’s boundary, so one just across the line is not counted. Where a ZIP has too few residents for the density to be reliable, no value is published rather than an unreliable one.
Full methodology ›Physician access
1.6 per 1,000 residents
in the top 10.5% nationally
Higher is healthier
ST93rdUS90thDefinition & source ›
The number of physicians’ offices located inside this ZIP’s boundary, per 1,000 residents.
Counted from establishments located inside this ZIP’s boundary, so one just across the line is not counted. Where a ZIP has too few residents for the density to be reliable, no value is published rather than an unreliable one.
Full methodology ›Housing-cost burden
39.4%
in the top 10.9% nationally
Lower is healthier
ST96thUS89thDefinition & source ›
The share of households spending 30% or more of their income on housing.
Full methodology ›Homeownership rate
58%
in the bottom 14.3% nationally
Higher is healthier
ST7thUS14thDefinition & source ›
The share of occupied homes that are owned, rather than rented, by the people living in them.
Full methodology ›Subsidized affordable housing
107 units
in the top 17% nationally
Higher is healthier
ST90thUS83rdDefinition & source ›
The number of affordable rental units in this ZIP supported by the federal Low-Income Housing Tax Credit program.
Full methodology ›Walkability
39 intersections/sq mi
in the top 23% nationally
Higher is healthier
ST94thUS77thDefinition & source ›
The number of street intersections per square mile — a standard street-connectivity measure; denser networks correlate with more walkable neighborhoods.
Full methodology ›Dry extreme heat
0.3 days/year
in the bottom 27% nationally
Lower is healthier
ST99thUS27thDefinition & source ›
The average number of days per year with a modeled daily high of at least 95 °F.
Full methodology ›Loneliness
34.4%
in the top 28% nationally
Lower is healthier
ST96thUS72ndDefinition & source ›
The estimated share of adults who report feeling lonely.
Full methodology ›The read
Somersworth, New Hampshire (ZIP 03878), overall, ranks in the top 25% healthiest ZIPs nationally (7,969th) and the bottom 31% of New Hampshire (167th).
Taken together, the data gives a genuinely mixed reading: grocery rests in the top 4.9% nationally, transit registers in the top 5.6% nationally, and physicians resides in the top 10.5% nationally. Outpatient settles in the top 10.8% nationally. Distance to a community health center is at the national minimum, shared with about 23% of ZIPs. Fatal road crashes sits in the bottom 11.8% nationally, and civic lands in the top 12.5% nationally. Mental-health providers lies in the top 12.8% nationally. On the other side, distance to a Superfund site stands at the national minimum, and housing-cost burden rests in the top 10.9% nationally.
Measured against the nearby ZIPs, park land runs far higher than the surrounding ZIPs on this measure. Defined simply, distance to a Superfund site is an abandoned or uncontrolled hazardous-waste site the EPA has identified for cleanup. Distance to a community health center is a federally funded (HRSA) community health center serving everyone regardless of ability to pay. ZIP 03820, just across the boundary, comes out healthier overall.
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 Boston-Cambridge-Newton, MA-NH metro area.
Compared with the ZIP codes measured across all nine scoring domains — not with all US ZIP codes.
Lifting this score
Chronic Disease Burden
healthier than 74%
21%
Environmental Hazard
healthier than 65%
14%
Risk Behavior
healthier than 83%
11%
Disability
healthier than 78%
7%
Climate / Disaster Risk
healthier than 70%
5%
Healthcare Access
healthier than 84%
5%
About typical
Social Need / SDOH
healthier than 49%
16%
Preventive Care
healthier than 53%
13%
Holding it back
Mental Health
healthier than 22%
8%
Lifting this score
Chronic Disease Burden
healthier than 70%
21%
Healthcare Access
healthier than 93%
5%
About typical
Environmental Hazard
healthier than 48%
14%
Disability
healthier than 54%
7%
Holding it back
Social Need / SDOH
healthier than 30%
16%
Preventive Care
healthier than 11%
13%
Risk Behavior
healthier than 37%
11%
Mental Health
healthier than 4%
8%
Climate / Disaster Risk
healthier than 36%
5%
Lifting this score
Environmental Hazard
healthier than 92%
14%
Climate / Disaster Risk
healthier than 73%
5%
Healthcare Access
healthier than 78%
5%
About typical
Risk Behavior
healthier than 41%
11%
Holding it back
Chronic Disease Burden
healthier than 29%
21%
Social Need / SDOH
healthier than 17%
16%
Preventive Care
healthier than 12%
13%
Mental Health
healthier than 8%
8%
Disability
healthier than 23%
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
03820
New Hampshireshares a border
Score 61.80
Closest healthier
03869
New Hampshireshares a border
Score 57.55
Similar health profile
05468
Vermont97% similar profile
Score 59.76
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 | 27.0% | 24.5–29.7 |
| High blood pressure among adults | 32.4% | 29.4–35.6 |
| Cancer (non-skin) or melanoma among adults | 8.3% | 7.5–9.1 |
| Current asthma among adults | 11.0% | 9.7–12.3 |
| Coronary heart disease among adults | 5.5% | 4.8–6.1 |
| Chronic obstructive pulmonary disease among adults | 6.6% | 5.6–7.5 |
| Depression among adults | 26.4% | 23.2–29.8 |
| Diagnosed diabetes among adults | 9.5% | 8.3–10.9 |
| High cholesterol among adults who have ever been screened | 35.4% | 32.3–38.7 |
| Obesity among adults | 34.6% | 29.7–39.8 |
| Stroke among adults | 3.0% | 2.7–3.3 |
| All teeth lost among adults aged >=65 years | 11.3% | 9.3–13.8 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 7.4% | 5.9–9.0 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 72.5% | 69.5–75.6 |
| Visits to doctor for routine checkup within the past year among adults | 76.8% | 73.6–80.1 |
| Cholesterol screening among adults | 86.3% | 84.4–88.2 |
| Colorectal cancer screening among adults aged 45–75 years | 66.4% | 62.4–70.4 |
| Visited dentist or dental clinic in the past year among adults | 67.0% | 64.0–70.2 |
| Mammography use among women aged 50-74 years | 78.0% | 72.2–83.2 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 16.0% | 13.6–18.8 |
| Current cigarette smoking among adults | 12.5% | 10.2–14.8 |
| No leisure-time physical activity among adults | 21.2% | 18.0–24.7 |
| Short sleep duration among adults | 31.2% | 27.2–35.7 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 15.7% | 13.4–18.0 |
| Frequent mental distress among adults | 18.0% | 15.8–20.2 |
| Frequent physical distress among adults | 12.0% | 10.5–13.6 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 13.1% | 11.3–15.0 |
| Any disability among adults | 26.7% | 23.4–30.2 |
| Hearing disability among adults | 6.8% | 6.0–7.7 |
| Independent living disability among adults | 7.1% | 6.1–8.1 |
| Mobility disability among adults | 11.1% | 9.5–12.7 |
| Self-care disability among adults | 3.1% | 2.8–3.6 |
| Vision disability among adults | 4.1% | 3.6–4.6 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 24.1% | 21.1–27.3 |
| Food insecurity in the past 12 months among adults | 12.0% | 10.1–14.2 |
| Received food stamps in the past 12 months among adults | 8.7% | 7.1–10.7 |
| Housing insecurity in the past 12 months among adults | 10.3% | 8.7–12.1 |
| Lack of reliable transportation in the past 12 months among adults | 6.8% | 5.9–7.9 |
| Loneliness among adults | 34.4% | 30.7–38.3 |
| Utility services shut-off threat in the past 12 months among adults | 6.9% | 5.9–8.1 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | NH median (p10–p90) |
|---|---|---|---|
| Poverty rate | 11.2% | 10.6% (3.1–25.8%) n=32,364 | 6.7% (2.0–13.3%) n=243 |
| Uninsured 18–64 | 5.2% | 9.0% (1.5–24.3%) n=32,286 | 7.1% (2.2–14.5%) n=242 |
| No HS diploma (25+) | 6.4% | 7.9% (1.8–20.7%) n=32,505 | 4.5% (1.3–9.8%) n=243 |
| Bachelor's or higher (25+) | 31.3% | 23.3% (9.2–53.6%) n=32,505 | 38.8% (21.4–60.3%) n=243 |
| Unemployment rate (16+) | 2.8% | 3.9% (0.0–9.8%) n=32,274 | 2.8% (0.0–6.0%) n=243 |
| Households without a vehicle | 6.4% | 3.9% (0.0–12.5%) n=32,322 | 2.5% (0.0–8.4%) n=243 |
| Broadband subscription | 92.6% | 89.3% (75.1–97.1%) n=32,322 | 92.9% (85.7–99.0%) n=243 |
| Housing cost burden (≥30% income) | 39.4% | 23.7% (10.6–40.0%) n=32,322 | 27.1% (17.2–36.4%) n=243 |
| Homeownership rate | 58.0% | 78.7% (51.7–94.0%) n=32,322 | 86.0% (62.6–96.9%) n=243 |
| Crowded housing (>1 per room) | 1.4% | 1.3% (0.0–6.3%) n=32,322 | 0.7% (0.0–3.1%) n=243 |
| Foreign-born population | 6.5% | 2.6% (0.0–18.6%) n=32,553 | 3.1% (0.5–7.1%) n=243 |
| Single-parent households | 46.6% | 53.6% (37.3–74.1%) n=32,087 | 60.9% (46.9–76.5%) n=243 |
| Population 65+ | 14.1% | 19.4% (10.8–33.6%) n=32,553 | 22.1% (15.1–37.1%) n=243 |
| Median age | 38.5 yr | 42.2 yr (33.0–56.3) n=32,292 | 47.1 yr (38.4–58.4) n=243 |
| Median household income | $75,136 | $72,070 ($46,039–$118,707) n=30,318 | $98,684 ($67,733–$147,723) n=235 |
| Median home value | $317,900 | $222,200 ($100,300–$579,820) n=30,049 | $371,500 ($252,560–$570,440) n=237 |
| Median gross rent | $1,479 | $1,021 ($677–$1,912) n=25,670 | $1,360 ($1,037–$1,893) n=197 |
Life expectancyNCHS / RWJF USALEEP · model-based
| Measure | Value | US median (p10–p90) | NH median (p10–p90) |
|---|---|---|---|
| Life expectancy at birth | 78.6 yr ± 1.16 | 78.9 yr (74.7–82.8) n=31,308 | 81.2 yr (78.0–85.7) n=242 |
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 1.16 years of 78.6, 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