ZIP code
03303
in Concord, New HampshirePopulation 16,571
58.29/ 100
Ranked #6,160 of 32,066 US ZIPs (top 19%)
Ranked #147 of 243 New Hampshire ZIPs (bottom 40%)
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
26.6%
in the top 4.0% nationally
Lower is healthier
ST92ndUS96thDefinition & 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 ›Mammography
80.9%
in the top 7.1% nationally
Higher is healthier
ST81stUS93rdDefinition & source ›
The estimated share of women aged 50–74 who had a mammogram within the past two years.
Full methodology ›High cholesterol
32.8%
in the bottom 8.7% nationally
Lower is healthier
ST8thUS9thDefinition & source ›
The estimated share of adults with high cholesterol, among those who have ever been screened for it.
Full methodology ›Outer-floodplain exposure
2.4%
in the top 13.2% nationally
Lower is healthier
ST94thUS87thDefinition & 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 ›The read
On the composite measure, ZIP 03303, one of several in Concord, New Hampshire stands in the top 19% healthiest ZIPs nationally (6,160th) and the bottom 40% of New Hampshire (147th).
Several of the strongest readings define how this area looks: modeled extreme heat registers at the national minimum, shared with about 19% of ZIPs. Modeled mammography lies in the top 7.1% nationally, and fatal road crashes is in the bottom 10.6% nationally. Modeled tree cover registers in the top 11.2% nationally, modeled high cholesterol lies in the bottom 8.7% nationally, and elder services is in the top 12.7% nationally. Distance to a nursing home registers at the national minimum, shared with about 27% of ZIPs. Modeled diabetes lies in the bottom 10.7% nationally. On the other hand, modeled arsenic is in the top 4.0% nationally, and outer-floodplain exposure registers in the top 13.2% nationally.
Set beside the wider area around it, outer-floodplain exposure runs far higher than the surrounding ZIPs on this measure. For clarity, 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. Outer-floodplain exposure is land with a lower but real 1-in-500 chance of flooding each year, nicknamed the "500-year floodplain". ZIP 03224, just across the boundary, ranks better overall among the ZIPs nearby.
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
Chronic Disease Burden
healthier than 73%
21%
Social Need / SDOH
healthier than 61%
16%
Preventive Care
healthier than 77%
13%
Risk Behavior
healthier than 83%
11%
Disability
healthier than 74%
7%
Climate / Disaster Risk
healthier than 67%
5%
About typical
Environmental Hazard
healthier than 51%
14%
Mental Health
healthier than 48%
8%
Healthcare Access
healthier than 54%
5%
Nothing measured is holding this score back.
Lifting this score
Chronic Disease Burden
healthier than 68%
21%
Healthcare Access
healthier than 65%
5%
About typical
Social Need / SDOH
healthier than 44%
16%
Disability
healthier than 41%
7%
Holding it back
Environmental Hazard
healthier than 33%
14%
Preventive Care
healthier than 35%
13%
Risk Behavior
healthier than 36%
11%
Mental Health
healthier than 19%
8%
Climate / Disaster Risk
healthier than 29%
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 ›
Findings that name this ZIP
One of our published findings lists this ZIP code. Each finding compares one published measure against a stated benchmark, and names only the ZIP codes whose estimates are reliable enough to rank. See all surprising findings.
Below its nearby ZIPs
The ZIP codes that outlive their neighbors
Estimated life expectancy is 78.1 ± 1.3 years. The 50 nearest ZIP codes with estimates average 81.5 years — 3.4 years below them.
Ranked #2,672 of the 3,687 ZIP codes this finding names, ordered by years above the nearby-ZIP average, highest first.
Nearby & similar ZIPs
Editorially selected — see how this ZIP compares to nearby and similar places.
Nearby
03224
New Hampshireshares a border
Score 64.05
Closest healthier
03229
New Hampshireshares a border
Score 64.79
Similar health profile
48176
Michigan99% similar profile
Score 66.35
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 | 28.2% | 25.6–30.8 |
| High blood pressure among adults | 32.0% | 28.9–35.0 |
| Cancer (non-skin) or melanoma among adults | 9.3% | 8.5–10.2 |
| Current asthma among adults | 11.3% | 10.0–12.6 |
| Coronary heart disease among adults | 5.9% | 5.3–6.6 |
| Chronic obstructive pulmonary disease among adults | 6.7% | 5.9–7.6 |
| Depression among adults | 24.2% | 21.2–27.3 |
| Diagnosed diabetes among adults | 9.3% | 8.0–10.5 |
| High cholesterol among adults who have ever been screened | 32.8% | 29.7–36.0 |
| Obesity among adults | 34.5% | 29.5–39.4 |
| Stroke among adults | 3.2% | 2.9–3.5 |
| All teeth lost among adults aged >=65 years | 9.3% | 7.9–11.0 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 7.0% | 5.9–8.4 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 75.4% | 72.3–78.1 |
| Visits to doctor for routine checkup within the past year among adults | 78.9% | 75.9–81.7 |
| Cholesterol screening among adults | 87.9% | 86.2–89.4 |
| Colorectal cancer screening among adults aged 45–75 years | 67.7% | 64.3–71.0 |
| Visited dentist or dental clinic in the past year among adults | 68.3% | 65.6–71.0 |
| Mammography use among women aged 50-74 years | 80.9% | 76.5–84.8 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 15.1% | 12.7–17.7 |
| Current cigarette smoking among adults | 11.8% | 10.0–13.8 |
| No leisure-time physical activity among adults | 21.0% | 18.0–24.1 |
| Short sleep duration among adults | 33.8% | 30.1–37.6 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 15.4% | 13.4–17.4 |
| Frequent mental distress among adults | 16.2% | 14.4–18.2 |
| Frequent physical distress among adults | 12.3% | 10.8–13.8 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 13.1% | 11.5–14.8 |
| Any disability among adults | 28.1% | 25.0–31.4 |
| Hearing disability among adults | 7.1% | 6.3–8.0 |
| Independent living disability among adults | 7.3% | 6.5–8.2 |
| Mobility disability among adults | 12.5% | 11.0–14.1 |
| Self-care disability among adults | 3.2% | 2.9–3.6 |
| Vision disability among adults | 4.1% | 3.7–4.5 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 22.1% | 19.3–25.2 |
| Food insecurity in the past 12 months among adults | 10.5% | 8.8–12.2 |
| Received food stamps in the past 12 months among adults | 8.0% | 6.6–9.5 |
| Housing insecurity in the past 12 months among adults | 9.2% | 7.9–10.7 |
| Lack of reliable transportation in the past 12 months among adults | 6.3% | 5.5–7.2 |
| Loneliness among adults | 29.6% | 26.2–33.3 |
| Utility services shut-off threat in the past 12 months among adults | 6.2% | 5.3–7.1 |
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 | 8.1% | 9.0% (1.5–24.3%) n=32,286 | 7.1% (2.2–14.5%) n=242 |
| No HS diploma (25+) | 6.2% | 7.9% (1.8–20.7%) n=32,505 | 4.5% (1.3–9.8%) n=243 |
| Bachelor's or higher (25+) | 30.0% | 23.3% (9.2–53.6%) n=32,505 | 38.8% (21.4–60.3%) n=243 |
| Unemployment rate (16+) | 3.3% | 3.9% (0.0–9.8%) n=32,274 | 2.8% (0.0–6.0%) n=243 |
| Households without a vehicle | 5.6% | 3.9% (0.0–12.5%) n=32,322 | 2.5% (0.0–8.4%) n=243 |
| Broadband subscription | 91.2% | 89.3% (75.1–97.1%) n=32,322 | 92.9% (85.7–99.0%) n=243 |
| Housing cost burden (≥30% income) | 32.7% | 23.7% (10.6–40.0%) n=32,322 | 27.1% (17.2–36.4%) n=243 |
| Homeownership rate | 68.2% | 78.7% (51.7–94.0%) n=32,322 | 86.0% (62.6–96.9%) n=243 |
| Crowded housing (>1 per room) | 1.2% | 1.3% (0.0–6.3%) n=32,322 | 0.7% (0.0–3.1%) n=243 |
| Foreign-born population | 3.6% | 2.6% (0.0–18.6%) n=32,553 | 3.1% (0.5–7.1%) n=243 |
| Single-parent households | 57.2% | 53.6% (37.3–74.1%) n=32,087 | 60.9% (46.9–76.5%) n=243 |
| Population 65+ | 19.2% | 19.4% (10.8–33.6%) n=32,553 | 22.1% (15.1–37.1%) n=243 |
| Median age | 42.7 yr | 42.2 yr (33.0–56.3) n=32,292 | 47.1 yr (38.4–58.4) n=243 |
| Median household income | $80,456 | $72,070 ($46,039–$118,707) n=30,318 | $98,684 ($67,733–$147,723) n=235 |
| Median home value | $296,200 | $222,200 ($100,300–$579,820) n=30,049 | $371,500 ($252,560–$570,440) n=237 |
| Median gross rent | $1,415 | $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 | 78.1 yr ± 0.68 | 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 0.68 years of 78.1, 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