ZIP code
48220
in Ferndale, MichiganPopulation 21,527
63.29/ 100
Ranked #2,811 of 32,066 US ZIPs (top 8.8%)
Ranked #65 of 973 Michigan ZIPs (top 6.7%)
Ranked #44 of 215 Detroit-Warren-Dearborn, MI ZIPs (top 20%)
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.
High cholesterol
28.8%
in the bottom 2.5% nationally
Lower is healthier
ST2ndUS2ndDefinition & source ›
The estimated share of adults with high cholesterol, among those who have ever been screened for it.
Full methodology ›Floodplain exposure
0.00%
at the national minimum
Lower is healthier
ST1stUS1stDefinition & 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 ›Tree cover
0.00%
at the national minimum
Higher is healthier
ST1stUS1stDefinition & source ›
The share of this ZIP’s land area covered by forest.
Full methodology ›Lead in tap water
8.1 ppb
in the top 4.8% nationally
Lower is healthier
US95thDefinition & source ›
The lead level at the 90th percentile of tap-water samples reported by the public water systems serving this ZIP, in parts per billion — the EPA requires action above 15 ppb.
Measured from EPA records for the public water systems that serve this ZIP. Households on private wells — roughly 30% of the US population — are not covered by this measure, and this figure says nothing about their water.
Full methodology ›Hearing disability
4.5%
in the bottom 3.6% nationally
Lower is healthier
ST1stUS4thDefinition & source ›
The estimated share of adults who are deaf or have serious difficulty hearing.
Full methodology ›Coronary heart disease
4.3%
in the bottom 4.6% nationally
Lower is healthier
ST1stUS5thDefinition & source ›
The estimated share of adults who have been told by a health professional that they have coronary heart disease or angina.
Full methodology ›Walkability
140 intersections/sq mi
in the top 6.2% nationally
Higher is healthier
ST95thUS94thDefinition & source ›
The number of street intersections per square mile — a standard street-connectivity measure; denser networks correlate with more walkable neighborhoods.
Full methodology ›Mobility disability
8.7%
in the bottom 4.7% nationally
Lower is healthier
ST3rdUS5thDefinition & source ›
The estimated share of adults with serious difficulty walking or climbing stairs.
Full methodology ›Diabetes
8.0%
in the bottom 4.3% nationally
Lower is healthier
ST2ndUS4thDefinition & source ›
The estimated share of adults who have been diagnosed with diabetes.
Full methodology ›Grocery access
0.19 per 1,000 residents
in the top 8.3% nationally
Higher is healthier
ST95thUS92ndDefinition & source ›
The number of full supermarkets 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. ZipVitals’s food-access signal is derived from these in-ZIP densities — it is not USDA’s food-desert designation, which measures distance to the nearest supermarket. Where a leg is missing, a ZIP reads “not determinable,” never “not a food desert.”
Full methodology ›The read
Ferndale, Michigan (ZIP 48220), in overall standing, comes out in the top 8.8% healthiest ZIPs nationally (2,811th) and the top 6.7% of Michigan (65th).
An even profile, with readings pulling both ways: modeled high cholesterol registers in the bottom 2.5% nationally, floodplain exposure is at the national minimum, and modeled hearing disability lies in the bottom 3.6% nationally. Modeled coronary heart disease registers in the bottom 4.6% nationally, walkability is in the top 6.2% nationally, and modeled mobility disability lies in the bottom 4.7% nationally. Modeled diabetes registers in the bottom 4.3% nationally, and grocery is in the top 8.3% nationally. Against that, modeled tree cover lies at the national minimum, and lead in tap water registers in the top 4.8% nationally.
Set within its surrounding area, park land runs far higher than the surrounding ZIPs on this measure. Defined simply, for reference, lead in tap water is the EPA trigger, 15 parts per billion in tap samples, above which a water system must act on lead. Floodplain exposure is land with about a 1-in-100 chance of flooding each year, nicknamed the "100-year floodplain". The closest healthier ZIP overall is ZIP 48067, 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. Compare it against the US, this state and the Detroit-Warren-Dearborn, MI 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 92%
21%
Social Need / SDOH
healthier than 83%
16%
Preventive Care
healthier than 70%
13%
Risk Behavior
healthier than 76%
11%
Disability
healthier than 91%
7%
Climate / Disaster Risk
healthier than 93%
5%
Healthcare Access
healthier than 82%
5%
About typical
Environmental Hazard
healthier than 54%
14%
Mental Health
healthier than 45%
8%
Nothing measured is holding this score back.
Lifting this score
Chronic Disease Burden
healthier than 98%
21%
Social Need / SDOH
healthier than 86%
16%
Risk Behavior
healthier than 77%
11%
Mental Health
healthier than 85%
8%
Disability
healthier than 94%
7%
Climate / Disaster Risk
healthier than 78%
5%
Healthcare Access
healthier than 85%
5%
About typical
Environmental Hazard
healthier than 41%
14%
Holding it back
Preventive Care
healthier than 36%
13%
Lifting this score
Chronic Disease Burden
healthier than 96%
21%
Social Need / SDOH
healthier than 68%
16%
Environmental Hazard
healthier than 70%
14%
Risk Behavior
healthier than 67%
11%
Mental Health
healthier than 65%
8%
Disability
healthier than 84%
7%
Climate / Disaster Risk
healthier than 83%
5%
Healthcare Access
healthier than 77%
5%
Holding it back
Preventive Care
healthier than 32%
13%
“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 75.3 ± 1.4 years. A median household income of $89,881 predicts 79.7 years — 4.4 years below.
Ranked #5,275 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
48030
Michiganshares a border
Score 51.61
Closest healthier
48067
Michiganshares a border
Score 68.30
Similar health profile
53532
Wisconsin98% similar profile
Score 62.91
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 | 19.8% | 18.1–21.6 |
| High blood pressure among adults | 28.6% | 26.4–30.9 |
| Cancer (non-skin) or melanoma among adults | 6.3% | 5.8–6.9 |
| Current asthma among adults | 11.2% | 10.0–12.4 |
| Coronary heart disease among adults | 4.3% | 3.9–4.8 |
| Chronic obstructive pulmonary disease among adults | 5.1% | 4.5–5.7 |
| Depression among adults | 23.6% | 21.1–26.2 |
| Diagnosed diabetes among adults | 8.0% | 7.2–9.1 |
| High cholesterol among adults who have ever been screened | 28.8% | 26.4–31.2 |
| Obesity among adults | 32.8% | 29.3–36.4 |
| Stroke among adults | 2.4% | 2.2–2.6 |
| All teeth lost among adults aged >=65 years | 9.3% | 7.6–11.1 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 5.6% | 4.7–6.6 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 71.8% | 69.2–74.2 |
| Visits to doctor for routine checkup within the past year among adults | 77.6% | 74.9–80.2 |
| Cholesterol screening among adults | 87.5% | 85.9–89.0 |
| Colorectal cancer screening among adults aged 45–75 years | 70.1% | 66.8–73.4 |
| Visited dentist or dental clinic in the past year among adults | 72.3% | 69.9–74.8 |
| Mammography use among women aged 50-74 years | 76.7% | 71.8–81.3 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 19.2% | 16.8–21.8 |
| Current cigarette smoking among adults | 11.6% | 9.9–13.5 |
| No leisure-time physical activity among adults | 17.6% | 15.5–20.2 |
| Short sleep duration among adults | 32.4% | 29.2–35.8 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 14.1% | 12.5–15.9 |
| Frequent mental distress among adults | 17.0% | 15.3–19.0 |
| Frequent physical distress among adults | 10.5% | 9.4–11.8 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 12.4% | 11.0–14.0 |
| Any disability among adults | 21.9% | 19.6–24.6 |
| Hearing disability among adults | 4.5% | 4.0–5.0 |
| Independent living disability among adults | 6.6% | 5.8–7.4 |
| Mobility disability among adults | 8.7% | 7.7–9.8 |
| Self-care disability among adults | 2.7% | 2.5–3.0 |
| Vision disability among adults | 3.6% | 3.2–4.0 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 21.3% | 18.5–24.4 |
| Food insecurity in the past 12 months among adults | 12.6% | 10.7–14.7 |
| Received food stamps in the past 12 months among adults | 11.3% | 9.6–13.2 |
| Housing insecurity in the past 12 months among adults | 10.6% | 9.1–12.4 |
| Lack of reliable transportation in the past 12 months among adults | 7.1% | 6.2–8.1 |
| Loneliness among adults | 32.2% | 28.4–36.0 |
| Utility services shut-off threat in the past 12 months among adults | 7.9% | 6.8–9.1 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | MI median (p10–p90) |
|---|---|---|---|
| Poverty rate | 11.0% | 10.6% (3.1–25.8%) n=32,364 | 10.7% (4.3–22.3%) n=974 |
| Uninsured 18–64 | 5.7% | 9.0% (1.5–24.3%) n=32,286 | 6.8% (2.5–13.5%) n=975 |
| No HS diploma (25+) | 3.7% | 7.9% (1.8–20.7%) n=32,505 | 6.7% (2.5–14.2%) n=974 |
| Bachelor's or higher (25+) | 54.4% | 23.3% (9.2–53.6%) n=32,505 | 22.1% (11.4–48.3%) n=974 |
| Unemployment rate (16+) | 5.6% | 3.9% (0.0–9.8%) n=32,274 | 4.6% (1.3–10.0%) n=974 |
| Households without a vehicle | 6.6% | 3.9% (0.0–12.5%) n=32,322 | 4.5% (0.9–10.8%) n=973 |
| Broadband subscription | 91.9% | 89.3% (75.1–97.1%) n=32,322 | 88.8% (79.5–95.5%) n=973 |
| Housing cost burden (≥30% income) | 23.8% | 23.7% (10.6–40.0%) n=32,322 | 22.5% (14.8–32.9%) n=973 |
| Homeownership rate | 63.7% | 78.7% (51.7–94.0%) n=32,322 | 85.3% (62.2–94.6%) n=973 |
| Crowded housing (>1 per room) | 0.0% | 1.3% (0.0–6.3%) n=32,322 | 1.1% (0.0–3.6%) n=973 |
| Foreign-born population | 4.8% | 2.6% (0.0–18.6%) n=32,553 | 1.8% (0.3–10.0%) n=975 |
| Single-parent households | 56.6% | 53.6% (37.3–74.1%) n=32,087 | 56.5% (43.6–74.2%) n=970 |
| Population 65+ | 12.2% | 19.4% (10.8–33.6%) n=32,553 | 20.5% (13.7–35.2%) n=975 |
| Median age | 36.9 yr | 42.2 yr (33.0–56.3) n=32,292 | 43.6 yr (35.2–58.2) n=974 |
| Median household income | $89,881 | $72,070 ($46,039–$118,707) n=30,318 | $68,216 ($47,282–$105,129) n=962 |
| Median home value | $243,900 | $222,200 ($100,300–$579,820) n=30,049 | $192,350 ($116,360–$355,650) n=952 |
| Median gross rent | $1,272 | $1,021 ($677–$1,912) n=25,670 | $972 ($719–$1,368) n=849 |
Life expectancyNCHS / RWJF USALEEP · model-based
| Measure | Value | US median (p10–p90) | MI median (p10–p90) |
|---|---|---|---|
| Life expectancy at birth | 75.3 yr ± 0.69 | 78.9 yr (74.7–82.8) n=31,308 | 78.6 yr (75.7–81.6) n=940 |
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 0.69 years of 75.3, 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