ZIP code
21524
in Corriganville, MarylandPopulation 710
41.79/ 100
Ranked #25,394 of 32,066 US ZIPs (bottom 21%)
Ranked #445 of 458 Maryland ZIPs (bottom 2.9%)
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.
Tree cover
86.9%
in the top 2.4% nationally
Higher is healthier
ST99thUS98thDefinition & source ›
The share of this ZIP’s land area covered by forest.
Full methodology ›Crowded housing
11.1%
in the top 3.9% nationally
Lower is healthier
ST98thUS96thDefinition & source ›
The share of occupied homes with more than one person per room, the Census definition of crowded housing.
Full methodology ›Housing-cost burden
4.6%
in the bottom 4.9% nationally
Lower is healthier
ST6thUS5thDefinition & source ›
The share of households spending 30% or more of their income on housing.
Full methodology ›PFAS in drinking water
64.3%
in the top 6.3% nationally
Lower is healthier
ST95thUS94thDefinition & source ›
The modeled probability that PFAS “forever chemicals” would be detected in untreated groundwater in this area, the source private wells draw on.
A modeled likelihood for untreated groundwater, the source drawn on by private wells, which are federally unregulated. It is not a measurement of treated water delivered by a public system, and it is not a test of any individual well.
Full methodology ›Natural-disaster risk
in the bottom 8.2% nationally
Lower is healthier
ST7thUS8thDefinition & 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 ›Home broadband subscription
73.3%
in the bottom 8.3% nationally
Higher is healthier
ST4thUS8thDefinition & source ›
The share of households with a broadband internet subscription.
Full methodology ›Coronary heart disease
9.6%
in the top 13.3% nationally
Lower is healthier
ST97thUS87thDefinition & source ›
The estimated share of adults who have been told by a health professional that they have coronary heart disease or angina.
Full methodology ›Floodplain exposure
1.6%
in the bottom 16% nationally
Lower is healthier
ST8thUS16thDefinition & source ›
The share of this ZIP’s land area inside FEMA’s 1%-annual-chance floodplain — the “100-year” flood zone, where flooding has about a 1-in-100 chance in any given year.
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 ›Stroke
5.0%
in the top 14.5% nationally
Lower is healthier
ST96thUS86thDefinition & source ›
The estimated share of adults who have been told by a health professional that they have had a stroke.
Full methodology ›Hearing disability
9.8%
in the top 21% nationally
Lower is healthier
ST96thUS79thDefinition & source ›
The estimated share of adults who are deaf or have serious difficulty hearing.
Full methodology ›The read
Overall, Corriganville, Maryland (ZIP 21524) lands in the bottom 21% nationally (25,394th) and the bottom 2.9% of Maryland (445th).
A number of measures pull each way for this area: modeled tree cover lands in the top 2.4% nationally, and housing-cost burden sits in the bottom 4.9% nationally. Unemployment is at the national minimum, shared with about 15% of ZIPs. Modeled disaster risk settles in the bottom 8.2% nationally. Modeled extreme heat resides at the national minimum, shared with about 19% of ZIPs. Modeled expected annual loss registers in the bottom 11.0% nationally. Set against that, crowded housing rests in the top 3.9% nationally, modeled pfas stands in the top 6.3% nationally, and home broadband subscription lies in the bottom 8.3% nationally. Fiber broadband lands at the national minimum, shared with about 19% of ZIPs.
A note on the terms: pfas is the man-made "forever chemicals" that build up in the body and environment instead of breaking down; here a modeled estimate of the chance a private well contains them. Disaster risk is the area's national rank on its highest non-flood peril in FEMA's modeled Risk Index, like wildfire or quake. Expected annual loss is FEMA's modeled estimate, in dollars, of average yearly harm to people from natural hazards. For a healthier nearby comparison, ZIP 21502, just across the boundary, ranks better 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
Environmental Hazard
healthier than 66%
14%
Climate / Disaster Risk
healthier than 74%
5%
About typical
Preventive Care
healthier than 54%
13%
Healthcare Access
healthier than 52%
5%
Holding it back
Chronic Disease Burden
healthier than 12%
21%
Social Need / SDOH
healthier than 28%
16%
Risk Behavior
healthier than 11%
11%
Mental Health
healthier than 17%
8%
Disability
healthier than 25%
7%
Lifting this score
Climate / Disaster Risk
healthier than 91%
5%
About typical
Environmental Hazard
healthier than 54%
14%
Healthcare Access
healthier than 50%
5%
Holding it back
Chronic Disease Burden
healthier than 4%
21%
Social Need / SDOH
healthier than 12%
16%
Preventive Care
healthier than 20%
13%
Risk Behavior
healthier than 3%
11%
Mental Health
healthier than 3%
8%
Disability
healthier than 5%
7%
“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
21502
Marylandshares a border
Score 44.17
Closest healthier
21545
Marylandshares a border
Score 42.57
Similar health profile
16950
Pennsylvania99% similar profile
Score 42.03
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 | 36.9% | 34.2–39.8 |
| High blood pressure among adults | 43.8% | 40.7–47.0 |
| Cancer (non-skin) or melanoma among adults | 10.8% | 9.9–12.0 |
| Current asthma among adults | 11.5% | 10.2–12.7 |
| Coronary heart disease among adults | 9.6% | 8.4–10.7 |
| Chronic obstructive pulmonary disease among adults | 12.0% | 10.3–13.6 |
| Depression among adults | 26.6% | 23.5–29.7 |
| Diagnosed diabetes among adults | 15.6% | 13.8–17.6 |
| High cholesterol among adults who have ever been screened | 41.7% | 38.5–45.1 |
| Obesity among adults | 38.1% | 33.6–42.9 |
| Stroke among adults | 5.0% | 4.4–5.6 |
| All teeth lost among adults aged >=65 years | 18.1% | 15.2–21.4 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 9.1% | 7.2–11.3 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 79.5% | 76.9–81.8 |
| Visits to doctor for routine checkup within the past year among adults | 81.1% | 78.4–83.6 |
| Cholesterol screening among adults | 88.2% | 86.5–89.8 |
| Colorectal cancer screening among adults aged 45–75 years | 63.2% | 59.0–67.4 |
| Visited dentist or dental clinic in the past year among adults | 57.0% | 53.7–60.2 |
| Mammography use among women aged 50-74 years | 75.5% | 69.4–81.0 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 13.6% | 11.4–15.9 |
| Current cigarette smoking among adults | 20.5% | 17.5–23.7 |
| No leisure-time physical activity among adults | 34.9% | 30.7–39.2 |
| Short sleep duration among adults | 41.1% | 36.7–45.6 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 25.0% | 22.0–28.3 |
| Frequent mental distress among adults | 18.8% | 16.8–21.1 |
| Frequent physical distress among adults | 17.5% | 15.5–19.5 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 16.3% | 14.3–18.6 |
| Any disability among adults | 37.4% | 33.5–41.4 |
| Hearing disability among adults | 9.8% | 8.7–10.9 |
| Independent living disability among adults | 10.0% | 8.8–11.4 |
| Mobility disability among adults | 18.7% | 16.3–21.2 |
| Self-care disability among adults | 5.1% | 4.4–5.8 |
| Vision disability among adults | 6.1% | 5.4–6.9 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 23.8% | 20.6–27.4 |
| Food insecurity in the past 12 months among adults | 18.0% | 15.1–21.5 |
| Received food stamps in the past 12 months among adults | 17.2% | 14.3–20.6 |
| Housing insecurity in the past 12 months among adults | 12.9% | 11.0–15.3 |
| Lack of reliable transportation in the past 12 months among adults | 8.3% | 7.2–9.7 |
| Loneliness among adults | 33.5% | 29.4–37.9 |
| Utility services shut-off threat in the past 12 months among adults | 8.8% | 7.5–10.3 |
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 | 12.5% | 9.0% (1.5–24.3%) n=32,286 | 4.8% (0.0–13.1%) n=459 |
| No HS diploma (25+) | 0.2% | 7.9% (1.8–20.7%) n=32,505 | 6.3% (0.5–16.6%) n=463 |
| Bachelor's or higher (25+) | 12.6% | 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 | 11.1% | 3.9% (0.0–12.5%) n=32,322 | 3.2% (0.0–12.4%) n=457 |
| Broadband subscription | 73.3% | 89.3% (75.1–97.1%) n=32,322 | 93.3% (81.2–100.0%) n=457 |
| Housing cost burden (≥30% income) | 4.6% | 23.7% (10.6–40.0%) n=32,322 | 27.0% (12.0–41.8%) n=457 |
| Homeownership rate | 75.2% | 78.7% (51.7–94.0%) n=32,322 | 82.1% (49.9–98.5%) n=457 |
| Crowded housing (>1 per room) | 11.1% | 1.3% (0.0–6.3%) n=32,322 | 0.7% (0.0–4.0%) n=457 |
| Foreign-born population | 0.4% | 2.6% (0.0–18.6%) n=32,553 | 6.2% (0.0–26.4%) n=464 |
| Single-parent households | 67.7% | 53.6% (37.3–74.1%) n=32,087 | 50.9% (34.0–73.3%) n=450 |
| Population 65+ | 16.5% | 19.4% (10.8–33.6%) n=32,553 | 18.0% (10.9–33.1%) n=464 |
| Median age | 36.1 yr | 42.2 yr (33.0–56.3) n=32,292 | 41.8 yr (34.2–57.2) n=460 |
| Median household income | $76,417 | $72,070 ($46,039–$118,707) n=30,318 | $106,181 ($62,879–$172,423) n=419 |
| Median home value | $158,500 | $222,200 ($100,300–$579,820) n=30,049 | $423,400 ($215,180–$683,660) n=427 |
| Median gross rent | $1,091 | $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 | 86.2 yr ± 3.80 | 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 3.80 years of 86.2, 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