ZIP code
48439
in Grand Blanc, MichiganPopulation 51,900
57.72/ 100
Ranked #6,628 of 32,066 US ZIPs (top 21%)
Ranked #178 of 973 Michigan ZIPs (top 18%)
Ranked #2 of 25 Flint, MI ZIPs (top 8.0%)
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.
Arsenic in groundwater
42.5%
in the top 1.3% nationally
Lower is healthier
ST95thUS99thDefinition & source ›
The modeled probability that untreated groundwater in this area — the source private wells draw on — exceeds the federal arsenic limit of 10 micrograms per liter.
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 ›Expected annual disaster loss
$0
in the top 3.8% nationally
Lower is healthier
ST99thUS96thDefinition & source ›
FEMA’s modeled estimate, in dollars per year, of the average harm to people expected from natural hazards — an annualized average, not a forecast for any single year.
Full methodology ›Physician access
2.2 per 1,000 residents
in the top 6.0% nationally
Higher is healthier
ST95thUS94thDefinition & source ›
The number of physicians’ 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 ›Mammography
81.5%
in the top 5.2% nationally
Higher is healthier
ST99thUS95thDefinition & source ›
The estimated share of women aged 50–74 who had a mammogram within the past two years.
Full methodology ›Subsidized affordable housing
291 units
in the top 8.5% nationally
Higher is healthier
ST92ndUS92ndDefinition & source ›
The number of affordable rental units in this ZIP supported by the federal Low-Income Housing Tax Credit program.
Full methodology ›Natural-disaster risk
in the top 10.6% nationally
Lower is healthier
ST98thUS89thDefinition & 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 ›Colon-cancer screening
72.3%
in the top 9.5% nationally
Higher is healthier
ST72ndUS91stDefinition & source ›
The estimated share of adults aged 45–75 who are up to date on colorectal-cancer screening.
Full methodology ›Uninsured (under 65)
5.2%
in the bottom 7.6% nationally
Lower is healthier
ST17thUS8thDefinition & source ›
The estimated share of adults aged 18–64 with no current health-insurance coverage.
Full methodology ›Transit access
1.2 per 1,000 residents
in the top 19% nationally
Higher is healthier
ST90thUS81stDefinition & source ›
The number of public-transit stops 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 ›The read
Grand Blanc, Michigan (ZIP 48439), overall, ranks in the top 21% healthiest ZIPs nationally (6,628th) and the top 18% of Michigan (178th).
Taken together, the data gives a genuinely mixed reading: physicians settles in the top 6.0% nationally, modeled mammography is in the top 5.2% nationally, and subsidized affordable housing sits in the top 8.5% nationally. Mental-health providers lands in the top 11.2% nationally, and modeled colon screening lies in the top 9.5% nationally. Distance to a nursing home stands at the national minimum, shared with about 27% of ZIPs. Outpatient rests in the top 16% nationally. On the other side, modeled arsenic registers in the top 1.3% nationally, and expected annual loss resides in the top 3.8% nationally. Modeled disaster risk settles in the top 10.6% nationally.
Measured against the nearby ZIPs, expected annual loss runs far higher than the surrounding ZIPs on this measure. Defined simply, arsenic is a natural groundwater contaminant, here a modeled estimate of the chance private-well levels exceed a benchmark. Expected annual loss is FEMA's modeled estimate, in dollars, of average yearly harm to people from natural hazards. Disaster risk is the area's national rank on its highest non-flood peril in FEMA's modeled Risk Index, like wildfire or quake. ZIP 48430, just across the boundary, 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. Compare it against the US, this state and the Flint, 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 66%
21%
Social Need / SDOH
healthier than 71%
16%
Preventive Care
healthier than 92%
13%
Risk Behavior
healthier than 71%
11%
Disability
healthier than 78%
7%
Climate / Disaster Risk
healthier than 82%
5%
Healthcare Access
healthier than 69%
5%
Holding it back
Environmental Hazard
healthier than 35%
14%
Mental Health
healthier than 32%
8%
Lifting this score
Chronic Disease Burden
healthier than 77%
21%
Social Need / SDOH
healthier than 74%
16%
Preventive Care
healthier than 84%
13%
Risk Behavior
healthier than 72%
11%
Mental Health
healthier than 73%
8%
Disability
healthier than 82%
7%
Healthcare Access
healthier than 72%
5%
About typical
Climate / Disaster Risk
healthier than 45%
5%
Holding it back
Environmental Hazard
healthier than 23%
14%
Lifting this score
Chronic Disease Burden
healthier than 96%
21%
Social Need / SDOH
healthier than 88%
16%
Preventive Care
healthier than 96%
13%
Risk Behavior
healthier than 92%
11%
Mental Health
in the top 0.00%
8%
Disability
healthier than 96%
7%
Climate / Disaster Risk
healthier than 63%
5%
About typical
Healthcare Access
healthier than 54%
5%
Holding it back
Environmental Hazard
healthier than 8%
14%
“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.
Above its nearby ZIPs
The ZIP codes that outlive their neighbors
Estimated life expectancy is 80.1 ± 1.2 years. The 47 nearest ZIP codes with estimates average 77.5 years — 2.6 years above them.
Ranked #1,049 of the 3,687 ZIP codes this finding names, ordered by years above the nearby-ZIP average, highest first.
Nearby & similar ZIPs
Editorially selected — see how this ZIP compares to nearby and similar places.
Nearby
48411
Michiganshares a border
Score 53.04
Closest healthier
48430
Michiganshares a border
Score 58.52
Similar health profile
48623
Michigan99% similar profile
Score 58.00
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 | 29.1% | 26.8–31.6 |
| High blood pressure among adults | 34.1% | 31.4–37.0 |
| Cancer (non-skin) or melanoma among adults | 9.4% | 8.6–10.2 |
| Current asthma among adults | 11.4% | 10.3–12.7 |
| Coronary heart disease among adults | 6.2% | 5.6–6.8 |
| Chronic obstructive pulmonary disease among adults | 6.7% | 6.0–7.4 |
| Depression among adults | 25.8% | 23.2–28.8 |
| Diagnosed diabetes among adults | 10.3% | 9.1–11.6 |
| High cholesterol among adults who have ever been screened | 36.0% | 33.2–39.1 |
| Obesity among adults | 35.3% | 31.6–39.6 |
| Stroke among adults | 3.2% | 3.0–3.5 |
| All teeth lost among adults aged >=65 years | 8.9% | 7.4–10.6 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 5.2% | 4.4–6.0 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 77.6% | 75.2–80.1 |
| Visits to doctor for routine checkup within the past year among adults | 80.4% | 78.0–83.0 |
| Cholesterol screening among adults | 88.9% | 87.6–90.2 |
| Colorectal cancer screening among adults aged 45–75 years | 72.3% | 69.0–75.7 |
| Visited dentist or dental clinic in the past year among adults | 72.7% | 70.3–75.2 |
| Mammography use among women aged 50-74 years | 81.5% | 77.0–85.8 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 16.1% | 13.9–18.7 |
| Current cigarette smoking among adults | 12.1% | 10.7–13.8 |
| No leisure-time physical activity among adults | 21.4% | 18.9–24.1 |
| Short sleep duration among adults | 36.1% | 32.3–40.3 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 16.0% | 14.4–17.8 |
| Frequent mental distress among adults | 16.9% | 15.3–18.6 |
| Frequent physical distress among adults | 12.9% | 11.6–14.3 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 12.9% | 11.6–14.2 |
| Any disability among adults | 28.9% | 26.1–31.8 |
| Hearing disability among adults | 6.4% | 5.8–7.1 |
| Independent living disability among adults | 7.3% | 6.6–8.1 |
| Mobility disability among adults | 12.5% | 11.2–14.0 |
| Self-care disability among adults | 3.1% | 2.8–3.4 |
| Vision disability among adults | 3.9% | 3.6–4.2 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 22.7% | 19.9–25.9 |
| Food insecurity in the past 12 months among adults | 11.7% | 10.1–13.4 |
| Received food stamps in the past 12 months among adults | 10.0% | 8.6–11.4 |
| Housing insecurity in the past 12 months among adults | 9.5% | 8.2–10.9 |
| Lack of reliable transportation in the past 12 months among adults | 6.7% | 5.9–7.5 |
| Loneliness among adults | 34.2% | 30.3–38.2 |
| Utility services shut-off threat in the past 12 months among adults | 6.8% | 5.9–7.8 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | MI median (p10–p90) |
|---|---|---|---|
| Poverty rate | 7.6% | 10.6% (3.1–25.8%) n=32,364 | 10.7% (4.3–22.3%) n=974 |
| Uninsured 18–64 | 6.3% | 9.0% (1.5–24.3%) n=32,286 | 6.8% (2.5–13.5%) n=975 |
| No HS diploma (25+) | 4.1% | 7.9% (1.8–20.7%) n=32,505 | 6.7% (2.5–14.2%) n=974 |
| Bachelor's or higher (25+) | 43.8% | 23.3% (9.2–53.6%) n=32,505 | 22.1% (11.4–48.3%) n=974 |
| Unemployment rate (16+) | 4.6% | 3.9% (0.0–9.8%) n=32,274 | 4.6% (1.3–10.0%) n=974 |
| Households without a vehicle | 3.9% | 3.9% (0.0–12.5%) n=32,322 | 4.5% (0.9–10.8%) n=973 |
| Broadband subscription | 94.4% | 89.3% (75.1–97.1%) n=32,322 | 88.8% (79.5–95.5%) n=973 |
| Housing cost burden (≥30% income) | 25.5% | 23.7% (10.6–40.0%) n=32,322 | 22.5% (14.8–32.9%) n=973 |
| Homeownership rate | 74.2% | 78.7% (51.7–94.0%) n=32,322 | 85.3% (62.2–94.6%) n=973 |
| Crowded housing (>1 per room) | 0.8% | 1.3% (0.0–6.3%) n=32,322 | 1.1% (0.0–3.6%) n=973 |
| Foreign-born population | 5.8% | 2.6% (0.0–18.6%) n=32,553 | 1.8% (0.3–10.0%) n=975 |
| Single-parent households | 53.4% | 53.6% (37.3–74.1%) n=32,087 | 56.5% (43.6–74.2%) n=970 |
| Population 65+ | 20.2% | 19.4% (10.8–33.6%) n=32,553 | 20.5% (13.7–35.2%) n=975 |
| Median age | 42.1 yr | 42.2 yr (33.0–56.3) n=32,292 | 43.6 yr (35.2–58.2) n=974 |
| Median household income | $88,490 | $72,070 ($46,039–$118,707) n=30,318 | $68,216 ($47,282–$105,129) n=962 |
| Median home value | $261,600 | $222,200 ($100,300–$579,820) n=30,049 | $192,350 ($116,360–$355,650) n=952 |
| Median gross rent | $1,123 | $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 | 80.1 yr ± 0.60 | 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 0.60 years of 80.1, 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