ZIP code
38450
in Collinwood, TennesseePopulation 2,611
34.79/ 100
Ranked #29,464 of 32,066 US ZIPs (bottom 8.2%)
Ranked #507 of 616 Tennessee ZIPs (bottom 18%)
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.
Grocery access
0.4 per 1,000 residents
in the top 2.3% nationally
Higher is healthier
ST98thUS98thDefinition & 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 ›Cognitive disability
21.4%
in the top 5.1% nationally
Lower is healthier
ST87thUS95thDefinition & source ›
The estimated share of adults with serious difficulty concentrating, remembering, or making decisions.
Full methodology ›Independent-living disability
12.8%
in the top 7.5% nationally
Lower is healthier
ST86thUS93rdDefinition & 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 ›Tree cover
72.4%
in the top 8.0% nationally
Higher is healthier
ST85thUS92ndDefinition & source ›
The share of this ZIP’s land area covered by forest.
Full methodology ›Pharmacy access
0.4 per 1,000 residents
in the top 8.1% nationally
Higher is healthier
ST93rdUS92ndDefinition & source ›
The number of pharmacies 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 ›Arsenic in groundwater
1.3%
in the bottom 8.3% nationally
Lower is healthier
ST15thUS8thDefinition & 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 ›Mobility disability
22.2%
in the top 9.0% nationally
Lower is healthier
ST82ndUS91stDefinition & source ›
The estimated share of adults with serious difficulty walking or climbing stairs.
Full methodology ›Distance to a hazardous-chemical facility
14.5 mi
in the top 8.4% nationally
Higher is healthier
ST97thUS92ndDefinition & source ›
The distance in miles from this ZIP’s edge to the nearest facility that handles enough hazardous chemicals to require an EPA risk-management plan for accidental releases.
Full methodology ›Fair or poor health
29.3%
in the top 9.8% nationally
Lower is healthier
ST83rdUS90thDefinition & source ›
The estimated share of adults who rate their own general health as fair or poor.
Full methodology ›Dental provider access
0.81 per 1,000 residents
in the top 10.7% nationally
Higher is healthier
ST95thUS89thDefinition & 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 ›The read
By the composite health measure, Collinwood, Tennessee (ZIP 38450) ranks in the bottom 8.2% nationally (29,464th) and the bottom 18% of Tennessee (507th).
The signals balance out across the profile, strengths against concerns: grocery settles in the top 2.3% nationally, and modeled tree cover resides in the top 8.0% nationally. Pharmacy registers in the top 8.1% nationally, and modeled arsenic rests in the bottom 8.3% nationally. Distance to a hazardous-chemical facility stands in the top 8.4% nationally, and dental providers lies in the top 10.7% nationally. Set against that, modeled cognitive disability lands in the top 5.1% nationally, independent living disability sits in the top 7.5% nationally, and mobility disability is in the top 9.0% nationally. Modeled fair or poor health settles in the top 9.8% nationally.
To spell things out, arsenic is a natural groundwater contaminant, here a modeled estimate of the chance private-well levels exceed a benchmark. Distance to a hazardous-chemical facility is a plant handling large amounts of hazardous chemicals that must file an EPA risk-management plan for accidental releases. Close by, ZIP 38452, just across the boundary, ranks 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.
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 52%
5%
Holding it back
Chronic Disease Burden
healthier than 9%
21%
Social Need / SDOH
healthier than 35%
16%
Preventive Care
healthier than 19%
13%
Risk Behavior
healthier than 9%
11%
Mental Health
healthier than 3%
8%
Disability
healthier than 8%
7%
Healthcare Access
healthier than 36%
5%
Lifting this score
Environmental Hazard
healthier than 88%
14%
Climate / Disaster Risk
healthier than 73%
5%
Holding it back
Chronic Disease Burden
healthier than 22%
21%
Social Need / SDOH
healthier than 27%
16%
Preventive Care
healthier than 21%
13%
Risk Behavior
healthier than 13%
11%
Mental Health
healthier than 12%
8%
Disability
healthier than 15%
7%
Healthcare Access
healthier than 33%
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 81.6; chronic-disease standing 9.2 (bottom 10%) — 72 points apart, cleaner on the environment than it is on chronic illness.
Ranked #926 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
38372
Tennesseeshares a border
Score 34.13
Closest healthier
38452
Tennesseeshares a border
Score 38.00
Similar health profile
37338
Tennessee100% similar profile
Score 34.63
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 | 37.2% | 33.4–41.2 |
| High blood pressure among adults | 43.5% | 39.0–48.3 |
| Cancer (non-skin) or melanoma among adults | 9.8% | 8.8–10.8 |
| Current asthma among adults | 11.6% | 10.3–13.2 |
| Coronary heart disease among adults | 9.7% | 8.7–10.8 |
| Chronic obstructive pulmonary disease among adults | 13.3% | 11.7–15.1 |
| Depression among adults | 31.1% | 26.9–35.7 |
| Diagnosed diabetes among adults | 16.4% | 14.3–18.8 |
| High cholesterol among adults who have ever been screened | 42.9% | 38.3–47.8 |
| Obesity among adults | 40.5% | 32.0–49.6 |
| Stroke among adults | 5.0% | 4.5–5.5 |
| All teeth lost among adults aged >=65 years | 21.8% | 18.0–25.8 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 13.7% | 11.2–16.4 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 78.9% | 76.1–81.6 |
| Visits to doctor for routine checkup within the past year among adults | 77.8% | 74.1–81.3 |
| Cholesterol screening among adults | 85.0% | 82.9–86.9 |
| Colorectal cancer screening among adults aged 45–75 years | 60.7% | 55.0–66.2 |
| Visited dentist or dental clinic in the past year among adults | 53.7% | 49.7–57.7 |
| Mammography use among women aged 50-74 years | 70.6% | 61.8–78.7 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 13.4% | 10.9–16.2 |
| Current cigarette smoking among adults | 24.0% | 20.8–27.6 |
| No leisure-time physical activity among adults | 33.3% | 28.1–39.2 |
| Short sleep duration among adults | 40.2% | 33.0–47.8 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 29.3% | 25.8–33.4 |
| Frequent mental distress among adults | 21.6% | 19.3–24.3 |
| Frequent physical distress among adults | 19.3% | 17.0–21.8 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 21.4% | 19.0–24.2 |
| Any disability among adults | 43.4% | 38.2–48.9 |
| Hearing disability among adults | 10.6% | 9.4–11.9 |
| Independent living disability among adults | 12.8% | 11.3–14.5 |
| Mobility disability among adults | 22.2% | 19.5–25.3 |
| Self-care disability among adults | 5.8% | 5.1–6.5 |
| Vision disability among adults | 7.4% | 6.6–8.3 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | TN median (p10–p90) |
|---|---|---|---|
| Poverty rate | 22.3% | 10.6% (3.1–25.8%) n=32,364 | 13.8% (5.1–26.1%) n=609 |
| Uninsured 18–64 | 13.5% | 9.0% (1.5–24.3%) n=32,286 | 14.0% (5.9–24.0%) n=615 |
| No HS diploma (25+) | 15.9% | 7.9% (1.8–20.7%) n=32,505 | 11.6% (4.2–19.5%) n=613 |
| Bachelor's or higher (25+) | 11.1% | 23.3% (9.2–53.6%) n=32,505 | 19.0% (10.0–42.6%) n=613 |
| Unemployment rate (16+) | 1.5% | 3.9% (0.0–9.8%) n=32,274 | 4.0% (0.4–9.6%) n=613 |
| Households without a vehicle | 7.5% | 3.9% (0.0–12.5%) n=32,322 | 3.9% (0.3–10.1%) n=608 |
| Broadband subscription | 79.8% | 89.3% (75.1–97.1%) n=32,322 | 86.7% (76.0–94.9%) n=608 |
| Housing cost burden (≥30% income) | 21.5% | 23.7% (10.6–40.0%) n=32,322 | 21.4% (11.8–33.6%) n=608 |
| Homeownership rate | 78.4% | 78.7% (51.7–94.0%) n=32,322 | 77.7% (53.4–91.5%) n=608 |
| Crowded housing (>1 per room) | 1.9% | 1.3% (0.0–6.3%) n=32,322 | 1.5% (0.0–4.5%) n=608 |
| Foreign-born population | 1.7% | 2.6% (0.0–18.6%) n=32,553 | 1.8% (0.0–8.3%) n=617 |
| Single-parent households | 56.1% | 53.6% (37.3–74.1%) n=32,087 | 52.6% (39.1–68.7%) n=608 |
| Population 65+ | 28.3% | 19.4% (10.8–33.6%) n=32,553 | 19.0% (11.5–27.9%) n=617 |
| Median age | 51.2 yr | 42.2 yr (33.0–56.3) n=32,292 | 42.3 yr (33.8–52.5) n=615 |
| Median household income | $42,887 | $72,070 ($46,039–$118,707) n=30,318 | $61,577 ($42,745–$94,822) n=594 |
| Median home value | $107,700 | $222,200 ($100,300–$579,820) n=30,049 | $215,100 ($120,900–$397,120) n=593 |
| Median gross rent | $608 | $1,021 ($677–$1,912) n=25,670 | $908 ($659–$1,523) n=516 |
Life expectancyNCHS / RWJF USALEEP · model-based
| Measure | Value | US median (p10–p90) | TN median (p10–p90) |
|---|---|---|---|
| Life expectancy at birth | 75.2 yr ± 1.06 | 78.9 yr (74.7–82.8) n=31,308 | 75.1 yr (72.6–78.1) n=587 |
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 1.06 years of 75.2, 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