ZIP code
06340
in Groton, ConnecticutPopulation 29,863
56.91/ 100
Ranked #7,363 of 32,066 US ZIPs (top 23%)
Ranked #203 of 277 Connecticut ZIPs (bottom 27%)
Ranked #20 of 30 Norwich-New London, CT ZIPs (bottom 33%)
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.
Expected annual disaster loss
$0
at the national minimum
Lower is healthier
ST1stUS1stDefinition & source ›
FEMA’s modeled estimate, in dollars per year, of the average harm to people expected from natural hazards — an annualized average, not a forecast for any single year.
Full 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 ›Outer-floodplain exposure
10.3%
in the top 3.7% nationally
Lower is healthier
ST99thUS96thDefinition & 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 ›Homeownership rate
44.5%
in the bottom 6.7% nationally
Higher is healthier
ST12thUS7thDefinition & source ›
The share of occupied homes that are owned, rather than rented, by the people living in them.
Full methodology ›Industrial-pollution burden
in the top 6.9% nationally
Lower is healthier
ST93rdUS93rdDefinition & 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 ›Diabetes
8.6%
in the bottom 6.6% nationally
Lower is healthier
ST20thUS7thDefinition & source ›
The estimated share of adults who have been diagnosed with diabetes.
Full methodology ›Transportation noise
8.4%
in the top 11.2% nationally
Lower is healthier
ST91stUS89thDefinition & source ›
The modeled share of residents exposed to average road, rail, and aviation noise at or above 55 decibels — a noticeable background presence.
Full methodology ›Loud transportation noise
1.5%
in the top 12.0% nationally
Lower is healthier
ST93rdUS88thDefinition & 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 ›Colon-cancer screening
72.2%
in the top 9.9% nationally
Higher is healthier
ST32ndUS90thDefinition & source ›
The estimated share of adults aged 45–75 who are up to date on colorectal-cancer screening.
Full methodology ›Floodplain exposure
24.3%
in the top 13.6% nationally
Lower is healthier
ST92ndUS86thDefinition & source ›
The share of this ZIP’s land area inside FEMA’s 1%-annual-chance floodplain — the “100-year” flood zone, where flooding has about a 1-in-100 chance in any given year.
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
In overall standing, Groton, Connecticut (ZIP 06340) comes out in the top 23% healthiest ZIPs nationally (7,363rd) and the bottom 27% of Connecticut (203rd).
The measures fall on both sides of the ledger for this area: modeled expected annual loss stands at the national minimum, and diabetes lands in the bottom 6.6% nationally. Distance to a community health center is at the national minimum, shared with about 23% of ZIPs. Modeled colon screening resides in the top 9.9% nationally. Set against that, distance to a Superfund site rests at the national minimum, and outer-floodplain exposure lies in the top 3.7% nationally. Homeownership sits in the bottom 6.7% nationally, and modeled industrial-pollution burden settles in the top 6.9% nationally. Modeled transportation noise registers in the top 11.2% nationally, and loud transportation noise stands in the top 12.0% nationally.
Relative to the ZIPs around it, outer-floodplain exposure runs far higher than the surrounding ZIPs on this measure. In plain terms, expected annual loss is FEMA's modeled estimate, in dollars, of average yearly harm to people from natural hazards. Distance to a Superfund site is an abandoned or uncontrolled hazardous-waste site the EPA has identified for cleanup. Industrial-pollution burden is the EPA's modeled screening score weighting industrial chemical releases by their toxicity and how many people live nearby. The nearest healthier ZIP overall is ZIP 06335, 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 Norwich-New London, CT 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 84%
21%
Preventive Care
healthier than 68%
13%
Risk Behavior
healthier than 62%
11%
Disability
healthier than 77%
7%
Healthcare Access
healthier than 91%
5%
About typical
Environmental Hazard
healthier than 48%
14%
Mental Health
healthier than 45%
8%
Holding it back
Social Need / SDOH
healthier than 33%
16%
Climate / Disaster Risk
healthier than 36%
5%
Lifting this score
Chronic Disease Burden
healthier than 79%
21%
Environmental Hazard
healthier than 74%
14%
Healthcare Access
healthier than 89%
5%
Holding it back
Social Need / SDOH
healthier than 17%
16%
Preventive Care
healthier than 21%
13%
Risk Behavior
healthier than 29%
11%
Mental Health
healthier than 19%
8%
Disability
healthier than 32%
7%
Climate / Disaster Risk
healthier than 7%
5%
Lifting this score
Chronic Disease Burden
healthier than 96%
21%
Healthcare Access
healthier than 96%
5%
Holding it back
Social Need / SDOH
healthier than 16%
16%
Environmental Hazard
healthier than 28%
14%
Preventive Care
healthier than 8%
13%
Risk Behavior
healthier than 24%
11%
Mental Health
healthier than 20%
8%
Disability
healthier than 36%
7%
Climate / Disaster Risk
healthier than 4%
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
06320
Connecticutshares a border
Score 51.06
Closest healthier
06335
Connecticutshares a border
Score 60.15
Similar health profile
23603
Virginia96% similar profile
Score 60.41
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 | 23.2% | 21.0–25.6 |
| High blood pressure among adults | 31.1% | 28.3–34.2 |
| Cancer (non-skin) or melanoma among adults | 7.4% | 6.8–8.2 |
| Current asthma among adults | 11.5% | 10.3–12.9 |
| Coronary heart disease among adults | 5.3% | 4.8–5.9 |
| Chronic obstructive pulmonary disease among adults | 5.5% | 5.0–6.2 |
| Depression among adults | 23.3% | 20.7–26.6 |
| Diagnosed diabetes among adults | 8.6% | 7.5–9.8 |
| High cholesterol among adults who have ever been screened | 33.0% | 30.2–36.3 |
| Obesity among adults | 31.6% | 27.1–36.9 |
| Stroke among adults | 2.8% | 2.6–3.1 |
| All teeth lost among adults aged >=65 years | 10.4% | 8.5–12.5 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 9.7% | 8.5–11.2 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 72.4% | 69.8–75.0 |
| Visits to doctor for routine checkup within the past year among adults | 78.7% | 75.9–81.6 |
| Cholesterol screening among adults | 86.2% | 84.6–88.0 |
| Colorectal cancer screening among adults aged 45–75 years | 72.2% | 68.6–75.8 |
| Visited dentist or dental clinic in the past year among adults | 70.2% | 67.3–73.0 |
| Mammography use among women aged 50-74 years | 79.0% | 73.5–84.1 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 16.8% | 14.4–19.6 |
| Current cigarette smoking among adults | 10.4% | 9.0–12.1 |
| No leisure-time physical activity among adults | 25.0% | 22.0–28.4 |
| Short sleep duration among adults | 37.1% | 32.8–41.7 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 16.7% | 14.9–18.8 |
| Frequent mental distress among adults | 17.2% | 15.5–19.3 |
| Frequent physical distress among adults | 12.5% | 11.2–14.0 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 14.6% | 13.1–16.4 |
| Any disability among adults | 28.1% | 25.2–31.5 |
| Hearing disability among adults | 5.8% | 5.2–6.5 |
| Independent living disability among adults | 7.3% | 6.5–8.2 |
| Mobility disability among adults | 10.7% | 9.4–12.1 |
| Self-care disability among adults | 3.1% | 2.9–3.4 |
| Vision disability among adults | 4.5% | 4.1–4.9 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 24.8% | 21.9–27.8 |
| Food insecurity in the past 12 months among adults | 14.1% | 12.3–16.1 |
| Received food stamps in the past 12 months among adults | 11.4% | 9.8–13.0 |
| Housing insecurity in the past 12 months among adults | 12.0% | 10.4–13.6 |
| Lack of reliable transportation in the past 12 months among adults | 8.6% | 7.6–9.6 |
| Loneliness among adults | 33.6% | 29.9–37.4 |
| Utility services shut-off threat in the past 12 months among adults | 8.0% | 7.0–9.1 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | CT median (p10–p90) |
|---|---|---|---|
| Poverty rate | 12.7% | 10.6% (3.1–25.8%) n=32,364 | 5.8% (2.3–20.8%) n=278 |
| Uninsured 18–64 | 6.2% | 9.0% (1.5–24.3%) n=32,286 | 4.5% (1.2–12.9%) n=277 |
| No HS diploma (25+) | 5.9% | 7.9% (1.8–20.7%) n=32,505 | 4.6% (1.1–14.3%) n=278 |
| Bachelor's or higher (25+) | 39.2% | 23.3% (9.2–53.6%) n=32,505 | 43.6% (19.2–70.7%) n=278 |
| Unemployment rate (16+) | 5.5% | 3.9% (0.0–9.8%) n=32,274 | 4.4% (1.6–9.1%) n=277 |
| Households without a vehicle | 8.2% | 3.9% (0.0–12.5%) n=32,322 | 4.1% (0.0–13.7%) n=278 |
| Broadband subscription | 89.7% | 89.3% (75.1–97.1%) n=32,322 | 93.7% (86.9–98.8%) n=278 |
| Housing cost burden (≥30% income) | 35.4% | 23.7% (10.6–40.0%) n=32,322 | 29.3% (18.2–44.9%) n=278 |
| Homeownership rate | 44.5% | 78.7% (51.7–94.0%) n=32,322 | 80.1% (41.3–93.1%) n=278 |
| Crowded housing (>1 per room) | 0.9% | 1.3% (0.0–6.3%) n=32,322 | 0.7% (0.0–3.8%) n=278 |
| Foreign-born population | 8.7% | 2.6% (0.0–18.6%) n=32,553 | 9.3% (2.1–22.3%) n=278 |
| Single-parent households | 43.9% | 53.6% (37.3–74.1%) n=32,087 | 51.1% (36.0–68.7%) n=277 |
| Population 65+ | 16.7% | 19.4% (10.8–33.6%) n=32,553 | 19.8% (13.4–30.2%) n=278 |
| Median age | 33.7 yr | 42.2 yr (33.0–56.3) n=32,292 | 44.1 yr (34.7–53.2) n=278 |
| Median household income | $81,792 | $72,070 ($46,039–$118,707) n=30,318 | $107,247 ($63,371–$163,278) n=270 |
| Median home value | $294,700 | $222,200 ($100,300–$579,820) n=30,049 | $365,900 ($239,080–$622,060) n=268 |
| Median gross rent | $1,599 | $1,021 ($677–$1,912) n=25,670 | $1,450 ($1,128–$2,175) n=247 |
Life expectancyNCHS / RWJF USALEEP · model-based
| Measure | Value | US median (p10–p90) | CT median (p10–p90) |
|---|---|---|---|
| Life expectancy at birth | 79.0 yr ± 0.88 | 78.9 yr (74.7–82.8) n=31,308 | 81.2 yr (77.7–83.5) n=266 |
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 0.88 years of 79.0, 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