ZIP code
20625
in Cobb Island, MarylandPopulation 849
54.27/ 100
Ranked #10,340 of 32,066 US ZIPs (top 32%)
Ranked #312 of 458 Maryland ZIPs (bottom 32%)
Ranked #248 of 308 Washington-Arlington-Alexandria, DC-VA-MD-WV ZIPs (bottom 19%)
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.
Transportation noise
0.00%
at the national minimum
Lower is healthier
ST1stUS1stDefinition & 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 ›Homeownership rate
100%
at the national maximum
Higher is healthier
ST99thUS99thDefinition & source ›
The share of occupied homes that are owned, rather than rented, by the people living in them.
Full methodology ›Home broadband subscription
100%
at the national maximum
Higher is healthier
ST99thUS99thDefinition & source ›
The share of households with a broadband internet subscription.
Full methodology ›Expected annual disaster loss
$0
in the bottom 3.0% nationally
Lower is healthier
ST2ndUS3rdDefinition & 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 ›Natural-disaster risk
in the bottom 6.6% nationally
Lower is healthier
ST4thUS7thDefinition & source ›
This area’s national rank on its single highest non-flood natural hazard — such as wildfire, tornado, or earthquake — in FEMA’s modeled National Risk Index; flooding is shown separately.
Full methodology ›Poverty rate
2.5%
in the bottom 8.0% nationally
Lower is healthier
ST18thUS8thDefinition & source ›
The share of residents whose income is below the federal poverty line, from the Census Bureau’s American Community Survey.
Full methodology ›Housing-cost burden
41.8%
in the top 8.3% nationally
Lower is healthier
ST90thUS92ndDefinition & source ›
The share of households spending 30% or more of their income on housing.
Full methodology ›Distance to a hazardous-chemical facility
11.2 mi
in the top 12.2% nationally
Higher is healthier
ST94thUS88thDefinition & source ›
The distance in miles from this ZIP’s edge to the nearest facility that handles enough hazardous chemicals to require an EPA risk-management plan for accidental releases.
Full methodology ›Arsenic in groundwater
11.1%
in the top 15% nationally
Lower is healthier
ST99thUS85thDefinition & 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 ›Tree cover
0.27%
in the bottom 18% nationally
Higher is healthier
ST4thUS18thDefinition & source ›
The share of this ZIP’s land area covered by forest.
Full methodology ›The read
Cobb Island, Maryland (ZIP 20625) ranks in the top 32% healthiest ZIPs nationally (10,340th) and the bottom 32% of Maryland (312th).
A profile of give and take, with clear readings each way: modeled transportation noise rests at the national minimum, and homeownership lands at the national maximum. Home broadband subscription settles at the national maximum, and modeled expected annual loss rests in the bottom 3.0% nationally. Modeled disaster risk lands in the bottom 6.6% nationally. Unemployment settles at the national minimum, shared with about 15% of ZIPs. Households without a vehicle rests at the national minimum, shared with about 16% of ZIPs. Poverty lands in the bottom 8.0% nationally. On the other side, housing-cost burden settles in the top 8.3% nationally. Fiber broadband rests at the national minimum, shared with about 19% of ZIPs.
For context, expected annual loss is FEMA's modeled estimate, in dollars, of average yearly harm to people from natural hazards. Disaster risk is the area's national rank on its highest non-flood peril in FEMA's modeled Risk Index, like wildfire or quake. Transportation noise is the modeled share of an area exposed to average road, rail, and air noise at or above 55 decibels. The closest ZIP that ranks healthier overall is ZIP 20664, 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 Washington-Arlington-Alexandria, DC-VA-MD-WV metro area.
Compared with the ZIP codes measured across all nine scoring domains — not with all US ZIP codes.
Lifting this score
Social Need / SDOH
healthier than 69%
16%
Environmental Hazard
healthier than 71%
14%
Preventive Care
healthier than 80%
13%
Risk Behavior
healthier than 72%
11%
Disability
healthier than 67%
7%
About typical
Chronic Disease Burden
healthier than 44%
21%
Mental Health
healthier than 60%
8%
Holding it back
Climate / Disaster Risk
healthier than 29%
5%
Healthcare Access
healthier than 17%
5%
Lifting this score
Environmental Hazard
healthier than 60%
14%
About typical
Social Need / SDOH
healthier than 44%
16%
Preventive Care
healthier than 49%
13%
Risk Behavior
healthier than 49%
11%
Holding it back
Chronic Disease Burden
healthier than 27%
21%
Mental Health
healthier than 28%
8%
Disability
healthier than 33%
7%
Climate / Disaster Risk
healthier than 16%
5%
Healthcare Access
healthier than 4%
5%
Lifting this score
Environmental Hazard
healthier than 72%
14%
About typical
Preventive Care
healthier than 55%
13%
Holding it back
Chronic Disease Burden
healthier than 11%
21%
Social Need / SDOH
healthier than 25%
16%
Risk Behavior
healthier than 32%
11%
Mental Health
healthier than 19%
8%
Disability
healthier than 21%
7%
Climate / Disaster Risk
healthier than 8%
5%
Healthcare Access
healthier than 12%
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
20618
Marylandshares a border
Score 52.89
Closest healthier
20664
Marylandshares a border
Score 54.84
Similar health profile
72122
Arkansas97% similar profile
Score 56.90
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 | 30.9% | 28.3–33.7 |
| High blood pressure among adults | 40.5% | 37.5–43.8 |
| Cancer (non-skin) or melanoma among adults | 10.2% | 9.2–11.3 |
| Current asthma among adults | 10.2% | 9.1–11.4 |
| Coronary heart disease among adults | 7.0% | 6.2–8.0 |
| Chronic obstructive pulmonary disease among adults | 8.1% | 6.8–9.7 |
| Depression among adults | 21.7% | 19.1–24.5 |
| Diagnosed diabetes among adults | 12.5% | 11.0–14.2 |
| High cholesterol among adults who have ever been screened | 41.2% | 38.2–44.2 |
| Obesity among adults | 38.0% | 33.7–42.7 |
| Stroke among adults | 3.6% | 3.2–4.2 |
| All teeth lost among adults aged >=65 years | 12.5% | 10.2–15.0 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 7.1% | 5.3–9.1 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 78.4% | 75.8–80.8 |
| Visits to doctor for routine checkup within the past year among adults | 79.0% | 76.1–81.7 |
| Cholesterol screening among adults | 89.2% | 87.3–90.9 |
| Colorectal cancer screening among adults aged 45–75 years | 72.0% | 68.6–75.1 |
| Visited dentist or dental clinic in the past year among adults | 65.6% | 62.7–68.3 |
| Mammography use among women aged 50-74 years | 77.1% | 71.4–82.0 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 15.3% | 13.1–17.8 |
| Current cigarette smoking among adults | 13.9% | 11.3–16.9 |
| No leisure-time physical activity among adults | 23.5% | 19.8–27.4 |
| Short sleep duration among adults | 33.9% | 30.2–37.5 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 17.8% | 15.1–21.0 |
| Frequent mental distress among adults | 16.7% | 14.7–18.8 |
| Frequent physical distress among adults | 13.8% | 12.0–15.9 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 13.2% | 11.2–15.4 |
| Any disability among adults | 29.0% | 25.3–33.1 |
| Hearing disability among adults | 7.8% | 6.9–8.8 |
| Independent living disability among adults | 7.5% | 6.4–8.8 |
| Mobility disability among adults | 13.7% | 11.6–16.1 |
| Self-care disability among adults | 3.5% | 3.0–4.1 |
| Vision disability among adults | 4.3% | 3.7–5.1 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 22.1% | 19.0–25.2 |
| Food insecurity in the past 12 months among adults | 11.4% | 9.1–14.1 |
| Received food stamps in the past 12 months among adults | 8.8% | 6.9–11.0 |
| Housing insecurity in the past 12 months among adults | 9.3% | 7.7–11.2 |
| Lack of reliable transportation in the past 12 months among adults | 6.2% | 5.3–7.3 |
| Loneliness among adults | 32.5% | 28.6–36.3 |
| Utility services shut-off threat in the past 12 months among adults | 6.2% | 5.2–7.3 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | MD median (p10–p90) |
|---|---|---|---|
| Poverty rate | 2.5% | 10.6% (3.1–25.8%) n=32,364 | 6.7% (1.1–19.3%) n=459 |
| Uninsured 18–64 | 0.0% | 9.0% (1.5–24.3%) n=32,286 | 4.8% (0.0–13.1%) n=459 |
| No HS diploma (25+) | 4.9% | 7.9% (1.8–20.7%) n=32,505 | 6.3% (0.5–16.6%) n=463 |
| Bachelor's or higher (25+) | 2.4% | 23.3% (9.2–53.6%) n=32,505 | 37.3% (15.0–64.4%) n=463 |
| Unemployment rate (16+) | 0.0% | 3.9% (0.0–9.8%) n=32,274 | 3.9% (0.0–8.6%) n=457 |
| Households without a vehicle | 0.0% | 3.9% (0.0–12.5%) n=32,322 | 3.2% (0.0–12.4%) n=457 |
| Broadband subscription | 100.0% | 89.3% (75.1–97.1%) n=32,322 | 93.3% (81.2–100.0%) n=457 |
| Housing cost burden (≥30% income) | 41.8% | 23.7% (10.6–40.0%) n=32,322 | 27.0% (12.0–41.8%) n=457 |
| Homeownership rate | 100.0% | 78.7% (51.7–94.0%) n=32,322 | 82.1% (49.9–98.5%) n=457 |
| Crowded housing (>1 per room) | 0.0% | 1.3% (0.0–6.3%) n=32,322 | 0.7% (0.0–4.0%) n=457 |
| Foreign-born population | 2.4% | 2.6% (0.0–18.6%) n=32,553 | 6.2% (0.0–26.4%) n=464 |
| Single-parent households | 67.8% | 53.6% (37.3–74.1%) n=32,087 | 50.9% (34.0–73.3%) n=450 |
| Population 65+ | 4.7% | 19.4% (10.8–33.6%) n=32,553 | 18.0% (10.9–33.1%) n=464 |
| Median age | 45.8 yr | 42.2 yr (33.0–56.3) n=32,292 | 41.8 yr (34.2–57.2) n=460 |
| Median household income | — | $72,070 ($46,039–$118,707) n=30,318 | $106,181 ($62,879–$172,423) n=419 |
| Median home value | $245,300 | $222,200 ($100,300–$579,820) n=30,049 | $423,400 ($215,180–$683,660) n=427 |
| Median gross rent | — | $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 | 81.1 yr ± 1.95 | 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 1.95 years of 81.1, 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