ZIP code
20634
in Great Mills, MarylandPopulation 7,088
58.00/ 100
Ranked #6,390 of 32,066 US ZIPs (top 20%)
Ranked #237 of 458 Maryland ZIPs (bottom 48%)
Ranked #24 of 38 Lexington Park, MD ZIPs (bottom 37%)
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.
Median household income
$139,375
in the top 5.3% nationally
Higher is healthier
ST75thUS95thDefinition & source ›
The middle household income in this ZIP — half of households earn more, half earn less — in dollars per year.
Full methodology ›Hearing disability
4.5%
in the bottom 3.6% nationally
Lower is healthier
ST15thUS4thDefinition & source ›
The estimated share of adults who are deaf or have serious difficulty hearing.
Full methodology ›Coronary heart disease
4.5%
in the bottom 5.7% nationally
Lower is healthier
ST11thUS6thDefinition & source ›
The estimated share of adults who have been told by a health professional that they have coronary heart disease or angina.
Full methodology ›Park land
18.5%
in the top 7.5% nationally
Higher is healthier
ST94thUS93rdDefinition & source ›
The share of this ZIP’s land area that is public parkland.
Full methodology ›Fatal road crashes
2.8 per 100,000 residents per year
in the bottom 9.9% nationally
Lower is healthier
ST13thUS10thDefinition & source ›
The annual rate of fatal road crashes per 100,000 residents, pooled over a ten-year window.
A rate per resident population. Where a ZIP has too few residents for the rate to be reliable — about 30% of US ZIPs — no value is published rather than an unstable one; those ZIPs are absent from this comparison, not counted as crash-free.
Full methodology ›Stroke
2.6%
in the bottom 8.3% nationally
Lower is healthier
ST15thUS8thDefinition & source ›
The estimated share of adults who have been told by a health professional that they have had a stroke.
Full methodology ›Crowded housing
4.6%
in the top 16% nationally
Lower is healthier
ST92ndUS84thDefinition & source ›
The share of occupied homes with more than one person per room, the Census definition of crowded housing.
Full methodology ›Dry extreme heat
0.1 days/year
in the bottom 22% nationally
Lower is healthier
ST10thUS22ndDefinition & source ›
The average number of days per year with a modeled daily high of at least 95 °F.
Full methodology ›Binge drinking
17.6%
in the top 23% nationally
Lower is healthier
ST93rdUS77thDefinition & source ›
The estimated share of adults who report binge drinking — five or more drinks on one occasion for men, four or more for women.
Full methodology ›The read
By its overall health score, Great Mills, Maryland (ZIP 20634) lands in the top 20% healthiest ZIPs nationally (6,390th) and the bottom 48% of Maryland (237th).
The profile opens on a set of genuinely favorable readings: household income registers in the top 5.3% nationally, and modeled hearing disability sits in the bottom 3.6% nationally. Modeled coronary heart disease rests in the bottom 5.7% nationally, and park land is in the top 7.5% nationally. Fatal road crashes stands in the bottom 9.9% nationally, lead in tap water settles in the bottom 10.5% nationally, and modeled stroke lies in the bottom 8.3% nationally. Modeled mobility disability resides in the bottom 10.9% nationally. On the other side, modeled loneliness lands in the top 11.2% nationally, and short sleep registers in the top 12.0% nationally.
Weighed against the ZIPs nearby, park land runs far higher than the surrounding ZIPs on this measure. To translate a couple of terms, lead in tap water is the EPA trigger, 15 parts per billion in tap samples, above which a water system must act on lead. Overall, the nearest healthier neighbor is ZIP 20619, just across the boundary. On a broader view, the area also sits on the healthier half of the national range on at least seven of the ten good-life measures tracked here, from quiet and green space to nearby care, a combination reached by about one in twenty-five US ZIP codes.
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 Lexington Park, MD 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 81%
21%
Social Need / SDOH
healthier than 77%
16%
Environmental Hazard
healthier than 72%
14%
Disability
healthier than 86%
7%
Healthcare Access
healthier than 68%
5%
About typical
Preventive Care
healthier than 50%
13%
Mental Health
healthier than 59%
8%
Climate / Disaster Risk
healthier than 49%
5%
Holding it back
Risk Behavior
healthier than 36%
11%
Lifting this score
Chronic Disease Burden
healthier than 78%
21%
Environmental Hazard
healthier than 63%
14%
Disability
healthier than 62%
7%
Healthcare Access
healthier than 71%
5%
About typical
Social Need / SDOH
healthier than 53%
16%
Holding it back
Preventive Care
healthier than 18%
13%
Risk Behavior
healthier than 13%
11%
Mental Health
healthier than 28%
8%
Climate / Disaster Risk
healthier than 40%
5%
Lifting this score
Chronic Disease Burden
healthier than 92%
21%
Disability
healthier than 62%
7%
Climate / Disaster Risk
healthier than 65%
5%
Healthcare Access
healthier than 92%
5%
About typical
Social Need / SDOH
healthier than 41%
16%
Environmental Hazard
healthier than 41%
14%
Holding it back
Preventive Care
healthier than 8%
13%
Risk Behavior
healthier than 3%
11%
Mental Health
healthier than 19%
8%
“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
20619
Marylandshares a border
Score 60.96
Closest healthier
20620
Marylandshares a border
Score 61.28
Similar health profile
60442
Illinois98% similar profile
Score 59.32
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 | 23.9% | 21.7–26.1 |
| High blood pressure among adults | 33.0% | 30.2–35.8 |
| Cancer (non-skin) or melanoma among adults | 6.0% | 5.4–6.6 |
| Current asthma among adults | 11.0% | 9.9–12.2 |
| Coronary heart disease among adults | 4.5% | 4.1–5.0 |
| Chronic obstructive pulmonary disease among adults | 5.1% | 4.6–5.8 |
| Depression among adults | 21.0% | 18.4–23.6 |
| Diagnosed diabetes among adults | 11.0% | 9.7–12.3 |
| High cholesterol among adults who have ever been screened | 34.3% | 31.2–37.3 |
| Obesity among adults | 39.2% | 34.5–43.7 |
| Stroke among adults | 2.6% | 2.4–2.9 |
| All teeth lost among adults aged >=65 years | 10.0% | 8.3–11.9 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 7.9% | 6.7–9.2 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 73.0% | 70.2–75.7 |
| Visits to doctor for routine checkup within the past year among adults | 76.4% | 73.3–79.3 |
| Cholesterol screening among adults | 87.8% | 86.1–89.2 |
| Colorectal cancer screening among adults aged 45–75 years | 66.7% | 62.8–70.5 |
| Visited dentist or dental clinic in the past year among adults | 63.2% | 60.2–66.2 |
| Mammography use among women aged 50-74 years | 77.2% | 71.7–82.2 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 17.6% | 15.0–20.3 |
| Current cigarette smoking among adults | 13.1% | 11.3–15.1 |
| No leisure-time physical activity among adults | 22.8% | 19.9–26.0 |
| Short sleep duration among adults | 41.2% | 37.0–45.5 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 17.1% | 15.2–19.3 |
| Frequent mental distress among adults | 17.3% | 15.5–19.2 |
| Frequent physical distress among adults | 11.5% | 10.2–12.8 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 13.5% | 11.9–15.0 |
| Any disability among adults | 24.9% | 22.0–27.9 |
| Hearing disability among adults | 4.5% | 4.0–5.0 |
| Independent living disability among adults | 6.7% | 6.0–7.5 |
| Mobility disability among adults | 10.4% | 9.1–11.7 |
| Self-care disability among adults | 3.1% | 2.8–3.4 |
| Vision disability among adults | 4.0% | 3.6–4.4 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 25.6% | 22.4–29.1 |
| Food insecurity in the past 12 months among adults | 14.5% | 12.3–16.6 |
| Received food stamps in the past 12 months among adults | 12.0% | 10.3–13.8 |
| Housing insecurity in the past 12 months among adults | 13.9% | 11.9–15.9 |
| Lack of reliable transportation in the past 12 months among adults | 8.0% | 7.0–9.0 |
| Loneliness among adults | 37.3% | 33.1–41.6 |
| Utility services shut-off threat in the past 12 months among adults | 8.8% | 7.6–10.1 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | MD median (p10–p90) |
|---|---|---|---|
| Poverty rate | 4.7% | 10.6% (3.1–25.8%) n=32,364 | 6.7% (1.1–19.3%) n=459 |
| Uninsured 18–64 | 1.6% | 9.0% (1.5–24.3%) n=32,286 | 4.8% (0.0–13.1%) n=459 |
| No HS diploma (25+) | 3.5% | 7.9% (1.8–20.7%) n=32,505 | 6.3% (0.5–16.6%) n=463 |
| Bachelor's or higher (25+) | 40.3% | 23.3% (9.2–53.6%) n=32,505 | 37.3% (15.0–64.4%) n=463 |
| Unemployment rate (16+) | 1.3% | 3.9% (0.0–9.8%) n=32,274 | 3.9% (0.0–8.6%) n=457 |
| Households without a vehicle | 3.2% | 3.9% (0.0–12.5%) n=32,322 | 3.2% (0.0–12.4%) n=457 |
| Broadband subscription | 95.8% | 89.3% (75.1–97.1%) n=32,322 | 93.3% (81.2–100.0%) n=457 |
| Housing cost burden (≥30% income) | 19.6% | 23.7% (10.6–40.0%) n=32,322 | 27.0% (12.0–41.8%) n=457 |
| Homeownership rate | 65.4% | 78.7% (51.7–94.0%) n=32,322 | 82.1% (49.9–98.5%) n=457 |
| Crowded housing (>1 per room) | 4.6% | 1.3% (0.0–6.3%) n=32,322 | 0.7% (0.0–4.0%) n=457 |
| Foreign-born population | 6.6% | 2.6% (0.0–18.6%) n=32,553 | 6.2% (0.0–26.4%) n=464 |
| Single-parent households | 44.9% | 53.6% (37.3–74.1%) n=32,087 | 50.9% (34.0–73.3%) n=450 |
| Population 65+ | 8.4% | 19.4% (10.8–33.6%) n=32,553 | 18.0% (10.9–33.1%) n=464 |
| Median age | 32.0 yr | 42.2 yr (33.0–56.3) n=32,292 | 41.8 yr (34.2–57.2) n=460 |
| Median household income | $139,375 | $72,070 ($46,039–$118,707) n=30,318 | $106,181 ($62,879–$172,423) n=419 |
| Median home value | $342,300 | $222,200 ($100,300–$579,820) n=30,049 | $423,400 ($215,180–$683,660) n=427 |
| Median gross rent | $1,814 | $1,021 ($677–$1,912) n=25,670 | $1,626 ($958–$2,415) n=339 |
Life expectancyNCHS / RWJF USALEEP · model-based
| Measure | Value | US median (p10–p90) | MD median (p10–p90) |
|---|---|---|---|
| Life expectancy at birth | 80.5 yr ± 1.83 | 78.9 yr (74.7–82.8) n=31,308 | 79.5 yr (75.7–82.7) n=451 |
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 1.83 years of 80.5, 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