ZIP code
21777
in Point Of Rocks, MarylandPopulation 2,462
62.69/ 100
Ranked #3,134 of 32,066 US ZIPs (top 9.8%)
Ranked #131 of 458 Maryland ZIPs (top 29%)
Ranked #151 of 308 Washington-Arlington-Alexandria, DC-VA-MD-WV ZIPs (top 49%)
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
$159,708
in the top 3.0% nationally
Higher is healthier
ST84thUS97thDefinition & source ›
The middle household income in this ZIP — half of households earn more, half earn less — in dollars per year.
Full methodology ›Fatal road crashes
0 per 100,000 residents per year
at the national minimum
Lower is healthier
ST1stUS1stDefinition & 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 ›Home broadband subscription
100%
at the national maximum
Higher is healthier
ST99thUS99thDefinition & source ›
The share of households with a broadband internet subscription.
Full methodology ›Mobility disability
8.3%
in the bottom 3.8% nationally
Lower is healthier
ST9thUS4thDefinition & source ›
The estimated share of adults with serious difficulty walking or climbing stairs.
Full methodology ›Poverty rate
1.5%
in the bottom 5.9% nationally
Lower is healthier
ST12thUS6thDefinition & 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
97.6%
in the top 6.0% nationally
Higher is healthier
ST88thUS94thDefinition & source ›
The share of occupied homes that are owned, rather than rented, by the people living in them.
Full methodology ›Loud transportation noise
2.3%
in the top 6.2% nationally
Lower is healthier
ST97thUS94thDefinition & 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 ›Hearing disability
4.8%
in the bottom 5.0% nationally
Lower is healthier
ST20thUS5thDefinition & source ›
The estimated share of adults who are deaf or have serious difficulty hearing.
Full methodology ›Independent-living disability
5.2%
in the bottom 3.6% nationally
Lower is healthier
ST12thUS4thDefinition & source ›
The estimated share of adults who have difficulty doing errands alone, such as visiting a doctor’s office, because of a physical, mental, or emotional condition.
Full methodology ›Natural-disaster risk
in the bottom 7.0% nationally
Lower is healthier
ST5thUS7thDefinition & 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 ›The read
Point Of Rocks, Maryland (ZIP 21777), in overall standing, comes out in the top 9.8% healthiest ZIPs nationally (3,134th) and the top 29% of Maryland (131st).
A few readings each way define this mixed profile: household income sits in the top 3.0% nationally, fatal road crashes stands at the national minimum, and home broadband subscription resides at the national maximum. Modeled mobility disability sits in the bottom 3.8% nationally, poverty stands in the bottom 5.9% nationally, and homeownership resides in the top 6.0% nationally. Modeled hearing disability sits in the bottom 5.0% nationally, and independent living disability stands in the bottom 3.6% nationally. Modeled disaster risk resides in the bottom 7.0% nationally. Pulling the other way, modeled loud transportation noise sits in the top 6.2% nationally.
Set within its surrounding area, park land runs far higher than the surrounding ZIPs on this measure. Defined simply, for reference, disaster risk is the area's national rank on its highest non-flood peril in FEMA's modeled Risk Index, like wildfire or quake. Loud transportation noise is the modeled share of an area exposed to road, rail, and air noise at or above 65 decibels, near conversation volume. The closest healthier ZIP overall is ZIP 21710, just across the boundary. Beyond that, the ZIP 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 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
Chronic Disease Burden
healthier than 86%
21%
Social Need / SDOH
healthier than 93%
16%
Preventive Care
healthier than 70%
13%
Risk Behavior
healthier than 84%
11%
Mental Health
healthier than 71%
8%
Disability
healthier than 96%
7%
Holding it back
Environmental Hazard
healthier than 40%
14%
Climate / Disaster Risk
healthier than 31%
5%
Healthcare Access
healthier than 21%
5%
Lifting this score
Chronic Disease Burden
healthier than 85%
21%
Social Need / SDOH
healthier than 81%
16%
Risk Behavior
healthier than 69%
11%
Disability
healthier than 90%
7%
About typical
Mental Health
healthier than 44%
8%
Holding it back
Environmental Hazard
healthier than 21%
14%
Preventive Care
healthier than 33%
13%
Climate / Disaster Risk
healthier than 18%
5%
Healthcare Access
healthier than 6%
5%
Lifting this score
Social Need / SDOH
healthier than 63%
16%
Disability
healthier than 77%
7%
About typical
Chronic Disease Burden
healthier than 56%
21%
Preventive Care
healthier than 41%
13%
Risk Behavior
healthier than 52%
11%
Holding it back
Environmental Hazard
healthier than 28%
14%
Mental Health
healthier than 28%
8%
Climate / Disaster Risk
healthier than 9%
5%
Healthcare Access
healthier than 14%
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
21710
Marylandshares a border
Score 62.95
Closest healthier
20176
Virginiaabout 0.2 mi away
Score 68.01
Similar health profile
61729
Illinois99% similar profile
Score 59.11
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 | 24.5% | 22.2–26.7 |
| High blood pressure among adults | 31.6% | 28.9–34.2 |
| Cancer (non-skin) or melanoma among adults | 8.1% | 7.3–8.9 |
| Current asthma among adults | 9.8% | 8.7–10.9 |
| Coronary heart disease among adults | 4.5% | 4.0–5.2 |
| Chronic obstructive pulmonary disease among adults | 4.6% | 3.8–5.5 |
| Depression among adults | 21.8% | 19.3–24.2 |
| Diagnosed diabetes among adults | 9.3% | 8.0–10.5 |
| High cholesterol among adults who have ever been screened | 38.2% | 35.5–40.9 |
| Obesity among adults | 34.5% | 30.5–38.2 |
| Stroke among adults | 2.4% | 2.1–2.7 |
| All teeth lost among adults aged >=65 years | 6.3% | 5.2–7.5 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 6.1% | 4.8–7.6 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 74.1% | 71.1–76.8 |
| Visits to doctor for routine checkup within the past year among adults | 78.2% | 75.5–80.5 |
| Cholesterol screening among adults | 90.6% | 88.9–92.0 |
| Colorectal cancer screening among adults aged 45–75 years | 67.5% | 64.1–70.8 |
| Visited dentist or dental clinic in the past year among adults | 71.5% | 69.1–73.9 |
| Mammography use among women aged 50-74 years | 73.8% | 68.6–78.7 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 16.9% | 14.6–19.2 |
| Current cigarette smoking among adults | 9.1% | 7.0–11.3 |
| No leisure-time physical activity among adults | 17.5% | 14.6–20.6 |
| Short sleep duration among adults | 35.2% | 31.9–38.7 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 12.9% | 10.8–15.2 |
| Frequent mental distress among adults | 15.3% | 13.4–17.3 |
| Frequent physical distress among adults | 10.0% | 8.6–11.5 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 10.6% | 8.9–12.4 |
| Any disability among adults | 20.5% | 17.6–23.5 |
| Hearing disability among adults | 4.8% | 4.2–5.4 |
| Independent living disability among adults | 5.2% | 4.3–6.1 |
| Mobility disability among adults | 8.3% | 6.9–9.8 |
| Self-care disability among adults | 2.4% | 2.0–2.8 |
| Vision disability among adults | 2.9% | 2.5–3.4 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 21.9% | 18.9–25.1 |
| Food insecurity in the past 12 months among adults | 8.4% | 6.6–10.6 |
| Received food stamps in the past 12 months among adults | 5.9% | 4.5–7.6 |
| Housing insecurity in the past 12 months among adults | 8.7% | 7.1–10.6 |
| Lack of reliable transportation in the past 12 months among adults | 5.1% | 4.2–6.1 |
| Loneliness among adults | 31.2% | 27.9–34.9 |
| Utility services shut-off threat in the past 12 months among adults | 5.6% | 4.6–6.7 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | MD median (p10–p90) |
|---|---|---|---|
| Poverty rate | 1.5% | 10.6% (3.1–25.8%) n=32,364 | 6.7% (1.1–19.3%) n=459 |
| Uninsured 18–64 | 1.2% | 9.0% (1.5–24.3%) n=32,286 | 4.8% (0.0–13.1%) n=459 |
| No HS diploma (25+) | 5.2% | 7.9% (1.8–20.7%) n=32,505 | 6.3% (0.5–16.6%) n=463 |
| Bachelor's or higher (25+) | 44.8% | 23.3% (9.2–53.6%) n=32,505 | 37.3% (15.0–64.4%) n=463 |
| Unemployment rate (16+) | 4.0% | 3.9% (0.0–9.8%) n=32,274 | 3.9% (0.0–8.6%) n=457 |
| Households without a vehicle | 2.7% | 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) | 11.1% | 23.7% (10.6–40.0%) n=32,322 | 27.0% (12.0–41.8%) n=457 |
| Homeownership rate | 97.6% | 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 | 6.9% | 2.6% (0.0–18.6%) n=32,553 | 6.2% (0.0–26.4%) n=464 |
| Single-parent households | 51.1% | 53.6% (37.3–74.1%) n=32,087 | 50.9% (34.0–73.3%) n=450 |
| Population 65+ | 13.0% | 19.4% (10.8–33.6%) n=32,553 | 18.0% (10.9–33.1%) n=464 |
| Median age | 43.8 yr | 42.2 yr (33.0–56.3) n=32,292 | 41.8 yr (34.2–57.2) n=460 |
| Median household income | $159,708 | $72,070 ($46,039–$118,707) n=30,318 | $106,181 ($62,879–$172,423) n=419 |
| Median home value | $480,500 | $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 | 78.3 yr ± 1.57 | 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 1.57 years of 78.3, 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