Greenwich, CT health
Greenwich differs from Connecticut on 25 of 40 measures. It has fewer adults facing food insecurity (7.5% vs 14.9%) and fewer adults facing a utility shut-off (4.4% vs 8.4%). Where it trails the state: more adults who have had cancer (10% vs 8.5%).
CDC PLACES 2025 · adults 18+ · ZIP codes 06831, 06830, 06807, 06878Greenwich’s Health Grade: A+
On seven CDC health estimates for adults, Greenwich is healthier than 99% of U.S. towns and 94% of Connecticut towns.
Wealth explains part of the grade. Greenwich is healthier than 99% of U.S. towns overall, but against towns with similar incomes its edge is smaller.
How the Health Grade works
- Seven CDC estimates. Adults in fair or poor health, frequent physical distress, frequent mental distress, obesity, diabetes, smoking and no exercise (CDC PLACES, 2025 release). On each one a town earns the share of U.S. towns doing worse, and those shares are averaged. It’s the same score as our Healthiest towns in Connecticut ranking.
- Graded on a national curve. Every U.S. town with 1,000+ residents and all seven estimates (19,420 places) is lined up by score: A+ top 5%A next 10%A- next 10%B B+ to B−, next 30%C C+ to C−, next 30%D D and D−, bottom 15%
- Not adjusted for income. Wealthier towns are usually healthier, and the grade shows that as it is. The similar-incomes bar compares Greenwich with U.S. towns whose median household income is within 25% of its own.
- Modeled, not measured. CDC combines national survey answers with each area’s age, sex, race and income mix. Greenwich’s figures come from the ZIP codes that cover it, weighted by land area. High blood pressure is left out because it tracks age more than anything else. The confidence line recomputes the grade with every estimate at the low, then the high, end of its range.
How Greenwich compares with Connecticut
Each theme counts how many of its measures are better, worse or too close to call against the state. Tap one to jump to it.
Chronic conditions
Habits
Care & screenings
Mind & connection
Everyday needs
Disability
Out of every 100 Greenwich adults…
Bars show Greenwich; the black tick is Connecticut. Tap a condition to see it as people.
Everyday habits, side by side with the state
CT 25.1%
CT 35.8%
CT 15.4%
CT 10.6%
Keeping up with care
Share of Greenwich adults getting routine care. The full ring is 100%; the dark tick marks Connecticut.
How Greenwich adults are doing
Making ends meet
Needs that shape health as much as any doctor visit: food, housing, utilities and a way to get around.
4.8% of Greenwich adults receive SNAP (food stamps), compared with 11.7% across Connecticut.
Living with a disability
of Greenwich adults live with a disability (Connecticut 25.3%). Walking or climbing stairs is the most common.
Black tick: Connecticut. Shown without a better/worse judgment.
Greenwich and the towns around it
Pick a measure to shade the map. Darker is worse for health. Pins are the nearest hospitals and community health centers.
Obesity
Care nearby
Shortage areas: HRSA Health Professional Shortage Areas (a “population” designation covers specific residents, such as those with low incomes). Hospitals: Medicare overall star ratings, 1–5. Distances are straight-line from the center of Greenwich. Nearby towns are shaded from CDC's estimates for their ZIP codes, or CDC's own figure for cities and villages.
All 40 measures for Greenwich
| Measure | Greenwich | Margin | Connecticut | |
|---|---|---|---|---|
| Chronic conditions | ||||
| High blood pressure | 28.6% | 26–31% | 32% | better |
| High cholesterol | 39.8% | 36.7–42.7% | 38.4% | about the same |
| Obesity | 22.3% | 18.7–25.7% | 30.5% | better |
| Arthritis | 22.7% | 20.4–24.7% | 24.7% | about the same |
| Depression | 17% | 14.9–19.1% | 20.6% | better |
| Lost all teeth (65+) | 5.2% | 4.3–6.5% | 9.8% | better |
| Asthma | 9.5% | 8.4–10.4% | 11% | better |
| Cancer (not skin) | 10% | 9.1–10.8% | 8.5% | worse |
| Diabetes | 7.9% | 6.9–8.9% | 10.2% | better |
| COPD | 4.2% | 3.6–4.8% | 5.6% | better |
| Heart disease | 5.2% | 4.6–5.7% | 5.8% | better |
| Stroke | 2.7% | 2.5–3% | 3.2% | better |
| Habits | ||||
| Smoke cigarettes | 6.6% | 5.6–7.8% | 10.6% | better |
| Binge drink | 15.9% | 13.8–17.9% | 15.4% | about the same |
| Get no exercise | 18.7% | 16.2–21.2% | 25.1% | better |
| Sleep under 7 hours | 30.5% | 27.3–34.5% | 35.8% | better |
| Care & screenings | ||||
| Yearly checkup | 80.3% | 77.7–82.5% | 80.4% | about the same |
| Dentist visit | 79.7% | 77.7–81.8% | 70.7% | better |
| Cholesterol check | 92.4% | 91.4–93.4% | 89.5% | better |
| Colon screening | 74.5% | 71.7–77.7% | 72.3% | about the same |
| Mammogram | 80% | 75.6–84.5% | 79.5% | about the same |
| Taking BP meds | 79.7% | 77–82% | 76.5% | better |
| No health insurance | 6.2% | 5.3–7.4% | 10% | better |
| Mind & connection | ||||
| Feel lonely | 30.2% | 27.3–33.3% | 33.2% | about the same |
| Lack emotional support | 21.1% | 18.7–23.5% | 25.1% | better |
| Frequent mental distress | 12.1% | 10.8–13.4% | 15.8% | better |
| Fair or poor health | 11.1% | 9.7–12.5% | 16.2% | better |
| Frequent physical distress | 9.8% | 8.7–11% | 12.4% | better |
| Everyday needs | ||||
| Food insecurity | 7.5% | 6.5–8.8% | 14.9% | better |
| Housing insecurity | 6.8% | 5.8–7.9% | 12.5% | better |
| Utility shut-off threat | 4.4% | 3.8–5.1% | 8.4% | better |
| No reliable transportation | 4.6% | 4–5.3% | 8.3% | better |
| Receive SNAP | 4.8% | 4–5.7% | 11.7% | |
| Disability | ||||
| Any disability | 18.9% | 16.6–21.2% | 25.3% | |
| Walking or climbing stairs | 8.2% | 7.1–9.4% | 11.3% | |
| Thinking or memory | 8.2% | 7.2–9.2% | 12.3% | |
| Hearing | 5.5% | 4.8–6.1% | 5.9% | |
| Vision | 3.2% | 2.8–3.5% | 4.8% | |
| Dressing or bathing | 2.4% | 2.1–2.6% | 3.5% | |
| Errands alone | 4.9% | 4.3–5.4% | 7% | |
How CDC estimates town health
CDC PLACES: Local Data for Better Health, 2025 release. The Connecticut figure combines its counties, weighted by adult population.
Health estimates: CDC PLACES. Hospitals and star ratings: Medicare Care Compare (CMS). Health centers and shortage areas: HRSA. Town boundaries: U.S. Census Bureau.