ZIP code
21640
in Henderson, MarylandPopulation 1,163
37.99/ 100
Ranked #28,024 of 32,066 US ZIPs (bottom 12.7%)
Ranked #454 of 458 Maryland ZIPs (bottom 0.9%)
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.
Uninsured (under 65)
18.6%
in the top 5.8% nationally
Lower is healthier
ST98thUS94thDefinition & source ›
The estimated share of adults aged 18–64 with no current health-insurance coverage.
Full methodology ›Dental provider access
1.1 per 1,000 residents
in the top 5.3% nationally
Higher is healthier
ST96thUS95thDefinition & source ›
The number of dental offices located 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 ›Cognitive disability
20.3%
in the top 8.2% nationally
Lower is healthier
ST99thUS92ndDefinition & source ›
The estimated share of adults with serious difficulty concentrating, remembering, or making decisions.
Full methodology ›Tooth loss
23.9%
in the top 8.9% nationally
Lower is healthier
ST99thUS91stDefinition & source ›
The estimated share of adults aged 65 and older who have lost all of their natural teeth.
Full methodology ›Food insecurity
27%
in the top 8.7% nationally
Lower is healthier
ST94thUS91stDefinition & source ›
The estimated share of adults who experienced food insecurity in the past 12 months.
Full methodology ›Housing insecurity
20%
in the top 9.0% nationally
Lower is healthier
ST91stUS91stDefinition & source ›
The estimated share of adults who experienced housing insecurity in the past 12 months.
Full methodology ›Lack of transportation
12.7%
in the top 11.1% nationally
Lower is healthier
ST94thUS89thDefinition & source ›
The estimated share of adults who lacked reliable transportation in the past 12 months.
Full methodology ›Utility shut-off threat
12.6%
in the top 12.3% nationally
Lower is healthier
ST92ndUS88thDefinition & source ›
The estimated share of adults whose household was threatened with a utility shut-off in the past 12 months.
Full methodology ›Obesity
42.5%
in the top 10.9% nationally
Lower is healthier
ST94thUS89thDefinition & source ›
The estimated share of adults with obesity, defined as a body-mass index of 30 or higher.
Full methodology ›Vision disability
8.0%
in the top 12.2% nationally
Lower is healthier
ST98thUS88thDefinition & source ›
The estimated share of adults who are blind or have serious difficulty seeing even with glasses.
Full methodology ›The read
Henderson, Maryland (ZIP 21640), on the composite measure, lands in the bottom 12.7% nationally (28,024th) and the bottom 0.9% of Maryland (454th).
The profile cuts both ways, and the readings bear that out: dental providers lies in the top 5.3% nationally. Modeled loud transportation noise settles at the national minimum, shared with about 22% of ZIPs. Working the other way, modeled uninsured stands in the top 5.8% nationally, and cognitive disability is in the top 8.2% nationally. Modeled tooth loss rests in the top 8.9% nationally, and food insecurity sits in the top 8.7% nationally. Modeled housing insecurity registers in the top 9.0% nationally, and housing-cost burden lands in the top 10.9% nationally. Modeled transportation resides in the top 11.1% nationally, and utility shutoff lies in the top 12.3% nationally.
In everyday language, 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. A healthier neighbor overall sits at ZIP 19934, 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.
Compared with the ZIP codes measured across all nine scoring domains — not with all US ZIP codes.
Lifting this score
Environmental Hazard
healthier than 82%
14%
About typical
Climate / Disaster Risk
healthier than 56%
5%
Holding it back
Chronic Disease Burden
healthier than 24%
21%
Social Need / SDOH
healthier than 7%
16%
Preventive Care
healthier than 8%
13%
Risk Behavior
healthier than 12%
11%
Mental Health
healthier than 15%
8%
Disability
healthier than 16%
7%
Healthcare Access
healthier than 39%
5%
Lifting this score
Environmental Hazard
healthier than 82%
14%
About typical
Climate / Disaster Risk
healthier than 54%
5%
Holding it back
Chronic Disease Burden
healthier than 12%
21%
Social Need / SDOH
healthier than 3%
16%
Preventive Care
healthier than 2%
13%
Risk Behavior
healthier than 3%
11%
Mental Health
healthier than 3%
8%
Disability
healthier than 2%
7%
Healthcare Access
healthier than 32%
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.
Clean environment, heavy chronic burden
Where the environment and chronic illness point in opposite directions
Environmental-hazard standing 81.7; chronic-disease standing 24.2 — 58 points apart, cleaner on the environment than it is on chronic illness.
Ranked #1,916 of the 18,187 ZIP codes this finding names, ordered by the gap from cleanest environment to heaviest chronic burden, highest first.
Nearby & similar ZIPs
Editorially selected — see how this ZIP compares to nearby and similar places.
Nearby
19934
Delawareshares a border
Score 52.41
Closest healthier
19964
Delawareshares a border
Score 42.59
Similar health profile
59526
Montana99% similar profile
Score 25.95
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 | 30.2% | 27.5–32.8 |
| High blood pressure among adults | 38.9% | 35.5–42.2 |
| Cancer (non-skin) or melanoma among adults | 7.7% | 7.0–8.4 |
| Current asthma among adults | 11.7% | 10.5–13.0 |
| Coronary heart disease among adults | 8.0% | 7.1–8.9 |
| Chronic obstructive pulmonary disease among adults | 10.6% | 9.2–12.0 |
| Depression among adults | 25.3% | 22.3–28.6 |
| Diagnosed diabetes among adults | 14.4% | 12.7–16.1 |
| High cholesterol among adults who have ever been screened | 39.2% | 35.8–42.5 |
| Obesity among adults | 42.5% | 36.8–48.0 |
| Stroke among adults | 4.3% | 3.9–4.8 |
| All teeth lost among adults aged >=65 years | 23.9% | 20.1–27.9 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 18.6% | 15.8–21.7 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 73.8% | 71.3–76.2 |
| Visits to doctor for routine checkup within the past year among adults | 75.3% | 72.0–78.5 |
| Cholesterol screening among adults | 82.7% | 80.6–84.9 |
| Colorectal cancer screening among adults aged 45–75 years | 61.5% | 56.8–65.9 |
| Visited dentist or dental clinic in the past year among adults | 49.1% | 45.5–52.3 |
| Mammography use among women aged 50-74 years | 70.1% | 62.5–76.7 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 14.8% | 12.5–17.3 |
| Current cigarette smoking among adults | 19.8% | 17.0–22.6 |
| No leisure-time physical activity among adults | 33.7% | 29.4–38.1 |
| Short sleep duration among adults | 40.3% | 35.0–45.4 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 27.5% | 24.3–30.9 |
| Frequent mental distress among adults | 20.0% | 17.9–22.1 |
| Frequent physical distress among adults | 17.1% | 15.2–19.1 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 20.3% | 18.0–22.7 |
| Any disability among adults | 37.7% | 33.6–41.9 |
| Hearing disability among adults | 8.3% | 7.4–9.2 |
| Independent living disability among adults | 11.6% | 10.2–13.1 |
| Mobility disability among adults | 17.8% | 15.6–20.1 |
| Self-care disability among adults | 5.7% | 5.0–6.5 |
| Vision disability among adults | 8.0% | 7.1–8.9 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 26.1% | 22.5–29.7 |
| Food insecurity in the past 12 months among adults | 27.0% | 23.1–31.2 |
| Received food stamps in the past 12 months among adults | 24.1% | 20.5–27.9 |
| Housing insecurity in the past 12 months among adults | 20.0% | 17.3–22.9 |
| Lack of reliable transportation in the past 12 months among adults | 12.7% | 11.1–14.5 |
| Loneliness among adults | 36.8% | 32.3–41.5 |
| Utility services shut-off threat in the past 12 months among adults | 12.6% | 10.9–14.4 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | MD median (p10–p90) |
|---|---|---|---|
| Poverty rate | 7.2% | 10.6% (3.1–25.8%) n=32,364 | 6.7% (1.1–19.3%) n=459 |
| Uninsured 18–64 | 36.5% | 9.0% (1.5–24.3%) n=32,286 | 4.8% (0.0–13.1%) n=459 |
| No HS diploma (25+) | 16.4% | 7.9% (1.8–20.7%) n=32,505 | 6.3% (0.5–16.6%) n=463 |
| Bachelor's or higher (25+) | 13.9% | 23.3% (9.2–53.6%) n=32,505 | 37.3% (15.0–64.4%) n=463 |
| Unemployment rate (16+) | 2.1% | 3.9% (0.0–9.8%) n=32,274 | 3.9% (0.0–8.6%) n=457 |
| Households without a vehicle | 3.5% | 3.9% (0.0–12.5%) n=32,322 | 3.2% (0.0–12.4%) n=457 |
| Broadband subscription | 83.8% | 89.3% (75.1–97.1%) n=32,322 | 93.3% (81.2–100.0%) n=457 |
| Housing cost burden (≥30% income) | 39.3% | 23.7% (10.6–40.0%) n=32,322 | 27.0% (12.0–41.8%) n=457 |
| Homeownership rate | 92.4% | 78.7% (51.7–94.0%) n=32,322 | 82.1% (49.9–98.5%) n=457 |
| Crowded housing (>1 per room) | 1.6% | 1.3% (0.0–6.3%) n=32,322 | 0.7% (0.0–4.0%) n=457 |
| Foreign-born population | 7.1% | 2.6% (0.0–18.6%) n=32,553 | 6.2% (0.0–26.4%) n=464 |
| Single-parent households | 53.6% | 53.6% (37.3–74.1%) n=32,087 | 50.9% (34.0–73.3%) n=450 |
| Population 65+ | 24.8% | 19.4% (10.8–33.6%) n=32,553 | 18.0% (10.9–33.1%) n=464 |
| Median age | 39.9 yr | 42.2 yr (33.0–56.3) n=32,292 | 41.8 yr (34.2–57.2) n=460 |
| Median household income | $53,558 | $72,070 ($46,039–$118,707) n=30,318 | $106,181 ($62,879–$172,423) n=419 |
| Median home value | $268,500 | $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 | 75.6 yr ± 1.16 | 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 1.16 years of 75.6, 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