ZIP code
21770
in Monrovia, MarylandPopulation 8,751
66.57/ 100
Ranked #1,411 of 32,066 US ZIPs (top 4.5%)
Ranked #62 of 458 Maryland ZIPs (top 13.6%)
Ranked #110 of 308 Washington-Arlington-Alexandria, DC-VA-MD-WV ZIPs (top 36%)
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
$183,571
in the top 1.6% nationally
Higher is healthier
ST92ndUS98thDefinition & source ›
The middle household income in this ZIP — half of households earn more, half earn less — in dollars per year.
Full methodology ›Homeownership rate
98.8%
in the top 5.3% nationally
Higher is healthier
ST90thUS95thDefinition & source ›
The share of occupied homes that are owned, rather than rented, by the people living in them.
Full methodology ›Independent-living disability
4.9%
in the bottom 2.3% nationally
Lower is healthier
ST7thUS2ndDefinition & 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 ›Mobility disability
8.4%
in the bottom 4.0% nationally
Lower is healthier
ST9thUS4thDefinition & source ›
The estimated share of adults with serious difficulty walking or climbing stairs.
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 ›Poverty rate
1.5%
in the bottom 6.0% 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 ›Energy-cost burden
1.4%
in the bottom 3.3% nationally
Lower is healthier
ST5thUS3rdDefinition & source ›
The modeled share of household income spent on home energy bills — electricity, gas, and heating fuels.
A modeled share of household income spent on home energy. Estimates that hit the model’s 100% ceiling are suppressed rather than published, because at that point the figure reflects the model’s limit rather than a measured burden.
Full methodology ›Cognitive disability
9.9%
in the bottom 4.7% nationally
Lower is healthier
ST13thUS5thDefinition & source ›
The estimated share of adults with serious difficulty concentrating, remembering, or making decisions.
Full methodology ›Food insecurity
7.9%
in the bottom 7.0% nationally
Lower is healthier
ST13thUS7thDefinition & source ›
The estimated share of adults who experienced food insecurity in the past 12 months.
Full methodology ›Home broadband subscription
97.9%
in the top 7.7% nationally
Higher is healthier
ST83rdUS92ndDefinition & source ›
The share of households with a broadband internet subscription.
Full methodology ›The read
In overall standing, Monrovia, Maryland (ZIP 21770) comes out in the top 4.5% healthiest ZIPs nationally (1,411th) and the top 13.6% of Maryland (62nd).
Both sides of the picture show up plainly in this area's numbers: household income resides in the top 1.6% nationally, homeownership rests in the top 5.3% nationally, and modeled independent living disability lies in the bottom 2.3% nationally. Modeled mobility disability sits in the bottom 4.0% nationally, modeled transportation settles in the bottom 5.9% nationally, and poverty registers in the bottom 6.0% nationally. Modeled energy burden stands in the bottom 3.3% nationally, and cognitive disability lands in the bottom 4.7% nationally. Modeled food insecurity is in the bottom 7.0% nationally, and home broadband subscription resides in the top 7.7% nationally.
Relative to the ZIPs around it, park land runs far lower than the surrounding ZIPs on this measure. In plain terms, energy burden is the share of household income that goes to home energy bills. The nearest healthier ZIP overall is ZIP 21754, just across the boundary. This ZIP further 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 84%
21%
Social Need / SDOH
healthier than 96%
16%
Environmental Hazard
healthier than 63%
14%
Preventive Care
healthier than 86%
13%
Risk Behavior
healthier than 91%
11%
Mental Health
healthier than 84%
8%
Disability
healthier than 96%
7%
Climate / Disaster Risk
healthier than 67%
5%
About typical
Healthcare Access
healthier than 42%
5%
Nothing measured is holding this score back.
Lifting this score
Chronic Disease Burden
healthier than 82%
21%
Social Need / SDOH
healthier than 86%
16%
Preventive Care
healthier than 63%
13%
Risk Behavior
healthier than 82%
11%
Mental Health
healthier than 65%
8%
Disability
healthier than 91%
7%
Climate / Disaster Risk
healthier than 80%
5%
About typical
Environmental Hazard
healthier than 49%
14%
Holding it back
Healthcare Access
healthier than 37%
5%
Lifting this score
Social Need / SDOH
healthier than 72%
16%
Preventive Care
healthier than 68%
13%
Risk Behavior
healthier than 66%
11%
Disability
healthier than 78%
7%
Climate / Disaster Risk
healthier than 89%
5%
About typical
Chronic Disease Burden
healthier than 52%
21%
Environmental Hazard
healthier than 59%
14%
Mental Health
healthier than 47%
8%
Holding it back
Healthcare Access
healthier than 26%
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 ›
Findings that name this ZIP
One of our published findings lists this ZIP code. Each finding compares one published measure against a stated benchmark, and names only the ZIP codes whose estimates are reliable enough to rank. See all surprising findings.
Below what income predicts
The ZIP codes that outlive their incomes
Estimated life expectancy is 78.9 ± 1.8 years. A median household income of $183,571 predicts 82.5 years — 3.6 years below.
Ranked #4,784 of the 5,842 ZIP codes this finding names, ordered by years above what income predicts, highest first.
Nearby & similar ZIPs
Editorially selected — see how this ZIP compares to nearby and similar places.
Nearby
20872
Marylandshares a border
Score 65.77
Closest healthier
21754
Marylandshares a border
Score 67.81
Similar health profile
46037
Indiana100% similar profile
Score 68.38
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 | 25.3% | 23.3–27.3 |
| High blood pressure among adults | 32.6% | 30.2–35.0 |
| Cancer (non-skin) or melanoma among adults | 9.0% | 8.2–9.7 |
| Current asthma among adults | 9.4% | 8.4–10.4 |
| Coronary heart disease among adults | 5.0% | 4.5–5.6 |
| Chronic obstructive pulmonary disease among adults | 4.7% | 4.1–5.4 |
| Depression among adults | 20.6% | 18.4–22.9 |
| Diagnosed diabetes among adults | 9.6% | 8.5–10.7 |
| High cholesterol among adults who have ever been screened | 39.5% | 36.8–42.1 |
| Obesity among adults | 32.9% | 29.3–36.5 |
| Stroke among adults | 2.5% | 2.3–2.8 |
| All teeth lost among adults aged >=65 years | 5.7% | 4.7–6.9 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 6.0% | 5.0–7.0 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 75.9% | 73.2–78.3 |
| Visits to doctor for routine checkup within the past year among adults | 79.0% | 76.3–81.2 |
| Cholesterol screening among adults | 90.9% | 89.6–92.0 |
| Colorectal cancer screening among adults aged 45–75 years | 71.0% | 68.0–74.0 |
| Visited dentist or dental clinic in the past year among adults | 72.0% | 69.7–74.3 |
| Mammography use among women aged 50-74 years | 78.1% | 73.5–82.3 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 15.9% | 13.8–18.0 |
| Current cigarette smoking among adults | 8.2% | 6.8–9.6 |
| No leisure-time physical activity among adults | 17.4% | 15.1–19.8 |
| Short sleep duration among adults | 34.1% | 31.0–37.5 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 12.6% | 11.1–14.3 |
| Frequent mental distress among adults | 14.2% | 12.8–15.8 |
| Frequent physical distress among adults | 9.8% | 8.7–11.0 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 9.9% | 8.8–11.2 |
| Any disability among adults | 20.5% | 18.3–22.9 |
| Hearing disability among adults | 5.3% | 4.7–5.9 |
| Independent living disability among adults | 4.9% | 4.3–5.6 |
| Mobility disability among adults | 8.4% | 7.4–9.6 |
| Self-care disability among adults | 2.3% | 2.1–2.6 |
| Vision disability among adults | 2.9% | 2.6–3.2 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 21.4% | 18.8–24.3 |
| Food insecurity in the past 12 months among adults | 7.9% | 6.6–9.4 |
| Received food stamps in the past 12 months among adults | 5.4% | 4.4–6.6 |
| Housing insecurity in the past 12 months among adults | 7.9% | 6.7–9.3 |
| Lack of reliable transportation in the past 12 months among adults | 4.8% | 4.1–5.5 |
| Loneliness among adults | 30.6% | 27.3–34.0 |
| Utility services shut-off threat in the past 12 months among adults | 5.0% | 4.3–5.8 |
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 | 2.2% | 9.0% (1.5–24.3%) n=32,286 | 4.8% (0.0–13.1%) n=459 |
| No HS diploma (25+) | 2.0% | 7.9% (1.8–20.7%) n=32,505 | 6.3% (0.5–16.6%) n=463 |
| Bachelor's or higher (25+) | 54.8% | 23.3% (9.2–53.6%) n=32,505 | 37.3% (15.0–64.4%) n=463 |
| Unemployment rate (16+) | 2.8% | 3.9% (0.0–9.8%) n=32,274 | 3.9% (0.0–8.6%) n=457 |
| Households without a vehicle | 1.6% | 3.9% (0.0–12.5%) n=32,322 | 3.2% (0.0–12.4%) n=457 |
| Broadband subscription | 97.9% | 89.3% (75.1–97.1%) n=32,322 | 93.3% (81.2–100.0%) n=457 |
| Housing cost burden (≥30% income) | 14.1% | 23.7% (10.6–40.0%) n=32,322 | 27.0% (12.0–41.8%) n=457 |
| Homeownership rate | 98.8% | 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 | 13.1% | 2.6% (0.0–18.6%) n=32,553 | 6.2% (0.0–26.4%) n=464 |
| Single-parent households | 51.5% | 53.6% (37.3–74.1%) n=32,087 | 50.9% (34.0–73.3%) n=450 |
| Population 65+ | 17.7% | 19.4% (10.8–33.6%) n=32,553 | 18.0% (10.9–33.1%) n=464 |
| Median age | 39.8 yr | 42.2 yr (33.0–56.3) n=32,292 | 41.8 yr (34.2–57.2) n=460 |
| Median household income | $183,571 | $72,070 ($46,039–$118,707) n=30,318 | $106,181 ($62,879–$172,423) n=419 |
| Median home value | $632,500 | $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 | 78.9 yr ± 0.92 | 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 0.92 years of 78.9, 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