ZIP code
21056
in Gibson Island, MarylandPopulation 291
61.73/ 100
Ranked #3,682 of 32,066 US ZIPs (top 11.5%)
Ranked #153 of 458 Maryland ZIPs (top 33%)
Ranked #78 of 157 Baltimore-Columbia-Towson, MD ZIPs (top 50%)
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
$250,001
at the national maximum
Higher is healthier
ST99thUS99thDefinition & source ›
The middle household income in this ZIP — half of households earn more, half earn less — in dollars per year.
Full methodology ›Colon-cancer screening
81%
in the top 0.2% nationally
Higher is healthier
ST99thUS99thDefinition & source ›
The estimated share of adults aged 45–75 who are up to date on colorectal-cancer screening.
Full 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 ›Poverty rate
0.00%
at the national minimum
Lower is healthier
ST1stUS1stDefinition & source ›
The share of residents whose income is below the federal poverty line, from the Census Bureau’s American Community Survey.
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 ›Mammography
82.6%
in the top 2.9% nationally
Higher is healthier
ST85thUS97thDefinition & source ›
The estimated share of women aged 50–74 who had a mammogram within the past two years.
Full methodology ›Utility shut-off threat
4.3%
in the bottom 5.7% nationally
Lower is healthier
ST11thUS6thDefinition & source ›
The estimated share of adults whose household was threatened with a utility shut-off in the past 12 months.
Full methodology ›Lack of transportation
4.8%
in the bottom 5.9% nationally
Lower is healthier
ST16thUS6thDefinition & source ›
The estimated share of adults who lacked reliable transportation in the past 12 months.
Full methodology ›Housing insecurity
6.9%
in the bottom 6.7% nationally
Lower is healthier
ST10thUS7thDefinition & source ›
The estimated share of adults who experienced housing insecurity in the past 12 months.
Full methodology ›The read
Gibson Island, Maryland (ZIP 21056), in overall standing, comes out in the top 11.5% healthiest ZIPs nationally (3,682nd) and the top 33% of Maryland (153rd).
An even profile, with readings pulling both ways: household income stands at the national maximum, modeled colon screening resides in the top 0.2% nationally, and modeled transportation noise sits at the national minimum. Poverty stands at the national minimum, homeownership resides at the national maximum, and home broadband subscription sits at the national maximum. Modeled mammography stands in the top 2.9% nationally, and utility shutoff resides in the bottom 5.7% nationally. Modeled transportation sits in the bottom 5.9% nationally, and housing insecurity stands in the bottom 6.7% nationally.
Set within its surrounding area, park land runs far lower than the surrounding ZIPs on this measure. Defined simply, for reference, transportation noise is the modeled share of an area exposed to average road, rail, and air noise at or above 55 decibels. The closest healthier ZIP overall is ZIP 21409, about 0.3 miles away.
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 Baltimore-Columbia-Towson, MD 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 98%
16%
Environmental Hazard
healthier than 80%
14%
Preventive Care
healthier than 99%
13%
Risk Behavior
healthier than 89%
11%
Mental Health
healthier than 94%
8%
Disability
healthier than 72%
7%
Holding it back
Chronic Disease Burden
healthier than 31%
21%
Climate / Disaster Risk
healthier than 28%
5%
Healthcare Access
healthier than 22%
5%
Lifting this score
Social Need / SDOH
healthier than 95%
16%
Environmental Hazard
healthier than 79%
14%
Preventive Care
healthier than 98%
13%
Risk Behavior
healthier than 79%
11%
Mental Health
healthier than 86%
8%
Holding it back
Chronic Disease Burden
healthier than 17%
21%
Disability
healthier than 39%
7%
Climate / Disaster Risk
healthier than 14%
5%
Healthcare Access
healthier than 7%
5%
Lifting this score
Social Need / SDOH
healthier than 93%
16%
Environmental Hazard
healthier than 95%
14%
Preventive Care
healthier than 99%
13%
Risk Behavior
healthier than 77%
11%
Mental Health
healthier than 93%
8%
Holding it back
Chronic Disease Burden
healthier than 6%
21%
Disability
healthier than 23%
7%
Climate / Disaster Risk
healthier than 10%
5%
Healthcare Access
healthier than 7%
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
21122
Marylandshares a border
Score 60.03
Closest healthier
21409
Marylandabout 0.3 mi away
Score 66.08
Similar health profile
20629
Maryland98% similar profile
Score 64.44
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 | 35.4% | 32.3–38.5 |
| High blood pressure among adults | 42.9% | 39.5–46.0 |
| Cancer (non-skin) or melanoma among adults | 14.1% | 12.8–15.5 |
| Current asthma among adults | 9.7% | 8.6–10.9 |
| Coronary heart disease among adults | 8.7% | 7.4–10.2 |
| Chronic obstructive pulmonary disease among adults | 7.7% | 5.9–9.8 |
| Depression among adults | 18.8% | 16.5–21.3 |
| Diagnosed diabetes among adults | 13.3% | 11.4–15.5 |
| High cholesterol among adults who have ever been screened | 44.6% | 41.6–47.7 |
| Obesity among adults | 32.0% | 27.8–35.9 |
| Stroke among adults | 4.1% | 3.4–4.8 |
| All teeth lost among adults aged >=65 years | 8.6% | 7.1–10.4 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 6.3% | 4.6–8.6 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 82.2% | 79.8–84.4 |
| Visits to doctor for routine checkup within the past year among adults | 83.5% | 81.3–85.6 |
| Cholesterol screening among adults | 92.6% | 91.2–93.8 |
| Colorectal cancer screening among adults aged 45–75 years | 81.0% | 78.3–83.6 |
| Visited dentist or dental clinic in the past year among adults | 68.5% | 65.8–71.1 |
| Mammography use among women aged 50-74 years | 82.6% | 78.4–86.5 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 13.1% | 11.3–15.1 |
| Current cigarette smoking among adults | 10.2% | 7.8–13.1 |
| No leisure-time physical activity among adults | 21.6% | 17.6–25.9 |
| Short sleep duration among adults | 34.7% | 31.3–38.2 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 17.7% | 14.4–21.6 |
| Frequent mental distress among adults | 12.4% | 10.8–14.2 |
| Frequent physical distress among adults | 13.8% | 11.6–16.3 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 10.7% | 8.9–12.8 |
| Any disability among adults | 30.5% | 26.0–35.2 |
| Hearing disability among adults | 9.0% | 7.6–10.3 |
| Independent living disability among adults | 6.5% | 5.2–7.9 |
| Mobility disability among adults | 14.8% | 11.9–18.1 |
| Self-care disability among adults | 3.3% | 2.6–4.1 |
| Vision disability among adults | 3.9% | 3.2–4.8 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 19.9% | 17.0–23.2 |
| Food insecurity in the past 12 months among adults | 8.6% | 6.4–11.2 |
| Received food stamps in the past 12 months among adults | 5.8% | 4.1–7.9 |
| Housing insecurity in the past 12 months among adults | 6.9% | 5.5–8.6 |
| Lack of reliable transportation in the past 12 months among adults | 4.8% | 3.9–5.8 |
| Loneliness among adults | 30.2% | 26.7–34.2 |
| Utility services shut-off threat in the past 12 months among adults | 4.3% | 3.5–5.2 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | MD median (p10–p90) |
|---|---|---|---|
| Poverty rate | 0.0% | 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+) | 0.0% | 7.9% (1.8–20.7%) n=32,505 | 6.3% (0.5–16.6%) n=463 |
| Bachelor's or higher (25+) | 93.1% | 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) | 22.1% | 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 | 0.0% | 2.6% (0.0–18.6%) n=32,553 | 6.2% (0.0–26.4%) n=464 |
| Single-parent households | 100.0% | 53.6% (37.3–74.1%) n=32,087 | 50.9% (34.0–73.3%) n=450 |
| Population 65+ | 81.4% | 19.4% (10.8–33.6%) n=32,553 | 18.0% (10.9–33.1%) n=464 |
| Median age | 66.6 yr | 42.2 yr (33.0–56.3) n=32,292 | 41.8 yr (34.2–57.2) n=460 |
| Median household income | $250,001 | $72,070 ($46,039–$118,707) n=30,318 | $106,181 ($62,879–$172,423) n=419 |
| Median home value | $2,000,001 | $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 | 78.6 yr ± 1.08 | 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 1.08 years of 78.6, 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