ZIP code
21662
in Royal Oak, MarylandPopulation 546
63.94/ 100
Ranked #2,481 of 32,066 US ZIPs (top 7.8%)
Ranked #106 of 458 Maryland ZIPs (top 23%)
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.
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 ›Civic-institution access
1.5 per 1,000 residents
in the top 2.0% nationally
Higher is healthier
ST99thUS98thDefinition & source ›
The number of civic and social organizations inside this ZIP’s boundary, per 1,000 residents.
Counted from establishments located inside this ZIP’s boundary, so one just across the line is not counted. Where a ZIP has too few residents for the density to be reliable, no value is published rather than an unreliable one.
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 ›Lack of transportation
4.4%
in the bottom 3.2% nationally
Lower is healthier
ST9thUS3rdDefinition & source ›
The estimated share of adults who lacked reliable transportation in the past 12 months.
Full methodology ›Utility shut-off threat
4.0%
in the bottom 3.8% nationally
Lower is healthier
ST7thUS4thDefinition & source ›
The estimated share of adults whose household was threatened with a utility shut-off in the past 12 months.
Full methodology ›Median household income
$137,404
in the top 5.6% nationally
Higher is healthier
ST73rdUS94thDefinition & source ›
The middle household income in this ZIP — half of households earn more, half earn less — in dollars per year.
Full methodology ›Housing insecurity
6.4%
in the bottom 4.0% nationally
Lower is healthier
ST6thUS4thDefinition & source ›
The estimated share of adults who experienced housing insecurity in the past 12 months.
Full methodology ›Outer-floodplain exposure
8.4%
in the top 4.5% nationally
Lower is healthier
ST99thUS96thDefinition & source ›
The share of this ZIP’s land area inside FEMA’s 0.2%-annual-chance flood band — the “500-year” zone, a lower but real 1-in-500 yearly chance.
Measured from FEMA’s mapped flood panels. Where a panel has not been mapped, no value is published for that ZIP — those ZIPs are absent from this comparison rather than counted as unexposed.
Full methodology ›Food insecurity
7.3%
in the bottom 4.7% nationally
Lower is healthier
ST9thUS5thDefinition & source ›
The estimated share of adults who experienced food insecurity in the past 12 months.
Full methodology ›Short sleep
28.4%
in the bottom 4.0% nationally
Lower is healthier
ST2ndUS4thDefinition & source ›
The estimated share of adults who usually sleep less than seven hours in a 24-hour period.
Full methodology ›The read
Royal Oak, Maryland (ZIP 21662), overall, ranks in the top 7.8% healthiest ZIPs nationally (2,481st) and the top 23% of Maryland (106th).
Taken together, the data gives a genuinely mixed reading: modeled colon screening lands in the top 0.2% nationally, civic lies in the top 2.0% nationally, and modeled transportation noise stands at the national minimum. Modeled transportation rests in the bottom 3.2% nationally, modeled utility shutoff registers in the bottom 3.8% nationally, and household income resides in the top 5.6% nationally. Modeled housing insecurity settles in the bottom 4.0% nationally, and food insecurity is in the bottom 4.7% nationally. Modeled short sleep sits in the bottom 4.0% nationally. On the other side, outer-floodplain exposure lands in the top 4.5% nationally.
Measured against the nearby ZIPs, outer-floodplain exposure runs far higher than the surrounding ZIPs on this measure. Defined simply, transportation noise is the modeled share of an area exposed to average road, rail, and air noise at or above 55 decibels. Outer-floodplain exposure is land with a lower but real 1-in-500 chance of flooding each year, nicknamed the "500-year floodplain". ZIP 21653, less than a tenth of a mile away, comes out healthier overall.
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.
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 87%
16%
Environmental Hazard
healthier than 86%
14%
Preventive Care
in the top 0.3%
13%
Risk Behavior
healthier than 98%
11%
Mental Health
healthier than 96%
8%
Disability
healthier than 78%
7%
About typical
Healthcare Access
healthier than 52%
5%
Holding it back
Chronic Disease Burden
healthier than 38%
21%
Climate / Disaster Risk
healthier than 18%
5%
Lifting this score
Social Need / SDOH
healthier than 70%
16%
Environmental Hazard
healthier than 90%
14%
Preventive Care
in the top 0.5%
13%
Risk Behavior
healthier than 95%
11%
Mental Health
healthier than 89%
8%
About typical
Disability
healthier than 49%
7%
Healthcare Access
healthier than 49%
5%
Holding it back
Chronic Disease Burden
healthier than 22%
21%
Climate / Disaster Risk
healthier than 8%
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
21601
Marylandshares a border
Score 59.50
Closest healthier
21653
Marylandless than 0.1 mi away
Score 64.77
Similar health profile
32080
Florida99% similar profile
Score 62.92
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 | 34.8% | 31.5–37.9 |
| High blood pressure among adults | 43.1% | 39.4–46.5 |
| Cancer (non-skin) or melanoma among adults | 14.2% | 12.8–15.6 |
| Current asthma among adults | 9.7% | 8.6–10.9 |
| Coronary heart disease among adults | 8.7% | 7.5–10.0 |
| Chronic obstructive pulmonary disease among adults | 7.1% | 5.6–8.6 |
| Depression among adults | 19.0% | 16.5–21.7 |
| Diagnosed diabetes among adults | 12.9% | 11.0–14.8 |
| High cholesterol among adults who have ever been screened | 44.8% | 41.1–48.4 |
| Obesity among adults | 27.6% | 23.2–32.2 |
| Stroke among adults | 4.1% | 3.5–4.8 |
| All teeth lost among adults aged >=65 years | 5.3% | 4.2–6.5 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 5.3% | 4.1–6.9 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 84.4% | 82.0–86.5 |
| Visits to doctor for routine checkup within the past year among adults | 84.9% | 82.3–87.2 |
| Cholesterol screening among adults | 93.3% | 92.1–94.4 |
| Colorectal cancer screening among adults aged 45–75 years | 81.0% | 77.4–84.1 |
| Visited dentist or dental clinic in the past year among adults | 75.2% | 72.3–77.8 |
| Mammography use among women aged 50-74 years | 81.9% | 76.3–86.5 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 13.1% | 10.9–15.4 |
| Current cigarette smoking among adults | 8.1% | 6.1–10.2 |
| No leisure-time physical activity among adults | 20.6% | 16.8–24.7 |
| Short sleep duration among adults | 28.4% | 24.3–32.8 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 15.4% | 12.7–18.3 |
| Frequent mental distress among adults | 11.6% | 10.0–13.3 |
| Frequent physical distress among adults | 12.2% | 10.4–14.2 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 9.4% | 7.9–11.1 |
| Any disability among adults | 27.8% | 23.9–31.9 |
| Hearing disability among adults | 9.1% | 7.9–10.3 |
| Independent living disability among adults | 6.0% | 4.9–7.1 |
| Mobility disability among adults | 13.9% | 11.4–16.5 |
| Self-care disability among adults | 3.1% | 2.5–3.7 |
| Vision disability among adults | 3.9% | 3.3–4.6 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 17.7% | 14.8–21.0 |
| Food insecurity in the past 12 months among adults | 7.3% | 5.6–9.3 |
| Received food stamps in the past 12 months among adults | 5.6% | 4.1–7.3 |
| Housing insecurity in the past 12 months among adults | 6.4% | 5.0–7.8 |
| Lack of reliable transportation in the past 12 months among adults | 4.4% | 3.6–5.2 |
| Loneliness among adults | 28.8% | 24.6–33.4 |
| Utility services shut-off threat in the past 12 months among adults | 4.0% | 3.2–4.9 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | MD median (p10–p90) |
|---|---|---|---|
| Poverty rate | 9.3% | 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+) | 0.8% | 7.9% (1.8–20.7%) n=32,505 | 6.3% (0.5–16.6%) n=463 |
| Bachelor's or higher (25+) | 60.2% | 23.3% (9.2–53.6%) n=32,505 | 37.3% (15.0–64.4%) n=463 |
| Unemployment rate (16+) | 10.5% | 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 | 96.8% | 89.3% (75.1–97.1%) n=32,322 | 93.3% (81.2–100.0%) n=457 |
| Housing cost burden (≥30% income) | 27.6% | 23.7% (10.6–40.0%) n=32,322 | 27.0% (12.0–41.8%) n=457 |
| Homeownership rate | 81.1% | 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 | 8.2% | 2.6% (0.0–18.6%) n=32,553 | 6.2% (0.0–26.4%) n=464 |
| Single-parent households | 59.6% | 53.6% (37.3–74.1%) n=32,087 | 50.9% (34.0–73.3%) n=450 |
| Population 65+ | 22.0% | 19.4% (10.8–33.6%) n=32,553 | 18.0% (10.9–33.1%) n=464 |
| Median age | 46.5 yr | 42.2 yr (33.0–56.3) n=32,292 | 41.8 yr (34.2–57.2) n=460 |
| Median household income | $137,404 | $72,070 ($46,039–$118,707) n=30,318 | $106,181 ($62,879–$172,423) n=419 |
| Median home value | $1,107,100 | $222,200 ($100,300–$579,820) n=30,049 | $423,400 ($215,180–$683,660) n=427 |
| Median gross rent | $2,125 | $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 | 83.9 yr ± 2.37 | 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 2.37 years of 83.9, 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