ZIP code
38483
in Summertown, TennesseePopulation 7,610
40.58/ 100
Ranked #26,339 of 32,066 US ZIPs (bottom 18%)
Ranked #316 of 616 Tennessee ZIPs (bottom 49%)
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
1.1%
in the bottom 3.6% nationally
Lower is healthier
ST4thUS4thDefinition & 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 ›Nitrate in drinking water
0.62%
in the top 7.1% nationally
Lower is healthier
ST97thUS93rdDefinition & source ›
The modeled share of this area’s domestic-well groundwater at or above the federal nitrate limit of 10 milligrams 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 ›Outpatient-care access
0.49 per 1,000 residents
in the top 8.1% nationally
Higher is healthier
ST95thUS92ndDefinition & source ›
The number of outpatient clinics 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 ›Crowded housing
6.1%
in the top 10.4% nationally
Lower is healthier
ST95thUS90thDefinition & source ›
The share of occupied homes with more than one person per room, the Census definition of crowded housing.
Full methodology ›Fine-particle (PM2.5) exceedance
0.27%
in the top 32% nationally
Lower is healthier
ST95thUS68thDefinition & source ›
The share of days in the year when modeled fine-particle (PM2.5) pollution was above the EPA’s daily limit of 35 micrograms per cubic meter.
Full methodology ›The read
Overall, Summertown, Tennessee (ZIP 38483) lands in the bottom 18% nationally (26,339th) and the bottom 49% of Tennessee (316th).
The picture here is genuinely mixed, with readings on both sides: modeled arsenic lies in the bottom 3.6% nationally, and outpatient lands in the top 8.1% nationally. Modeled tree cover sits in the top 19% nationally. On the other side, modeled nitrate is in the top 7.1% nationally, crowded housing settles in the top 10.4% nationally, and modeled cognitive disability resides in the top 13.5% nationally. Physicians registers at the national minimum, shared with about 38% of ZIPs. Modeled expected annual loss rests in the top 19% nationally, short sleep stands in the top 19% nationally, and humid heat lies in the top 20% nationally.
A note on the terms: arsenic is a natural groundwater contaminant, here a modeled estimate of the chance private-well levels exceed a benchmark. Nitrate is a groundwater compound from fertilizer, manure, and sewage, 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. For a healthier nearby comparison, ZIP 38461, 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.
Nothing measured is lifting this score.
About typical
Environmental Hazard
healthier than 60%
14%
Climate / Disaster Risk
healthier than 51%
5%
Holding it back
Chronic Disease Burden
healthier than 30%
21%
Social Need / SDOH
healthier than 33%
16%
Preventive Care
healthier than 22%
13%
Risk Behavior
healthier than 18%
11%
Mental Health
healthier than 3%
8%
Disability
healthier than 28%
7%
Healthcare Access
healthier than 30%
5%
Lifting this score
Chronic Disease Burden
healthier than 66%
21%
Disability
healthier than 60%
7%
Climate / Disaster Risk
healthier than 70%
5%
About typical
Environmental Hazard
healthier than 55%
14%
Holding it back
Social Need / SDOH
healthier than 24%
16%
Preventive Care
healthier than 28%
13%
Risk Behavior
healthier than 34%
11%
Mental Health
healthier than 18%
8%
Healthcare Access
healthier than 27%
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 ›
Nearby & similar ZIPs
Editorially selected — see how this ZIP compares to nearby and similar places.
Nearby
38456
Tennesseeshares a border
Score 33.29
Closest healthier
38461
Tennesseeshares a border
Score 40.84
Similar health profile
37345
Tennessee99% similar profile
Score 43.76
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 | 33.0% | 30.2–35.8 |
| High blood pressure among adults | 40.4% | 37.0–43.8 |
| Cancer (non-skin) or melanoma among adults | 8.9% | 8.2–9.7 |
| Current asthma among adults | 11.2% | 10.1–12.4 |
| Coronary heart disease among adults | 7.8% | 7.0–8.6 |
| Chronic obstructive pulmonary disease among adults | 10.3% | 9.1–11.6 |
| Depression among adults | 31.6% | 28.2–35.1 |
| Diagnosed diabetes among adults | 13.8% | 12.3–15.4 |
| High cholesterol among adults who have ever been screened | 40.3% | 36.9–43.9 |
| Obesity among adults | 40.0% | 33.9–46.1 |
| Stroke among adults | 3.9% | 3.6–4.3 |
| All teeth lost among adults aged >=65 years | 15.1% | 12.9–17.6 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 11.8% | 9.8–14.2 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 76.2% | 73.8–78.5 |
| Visits to doctor for routine checkup within the past year among adults | 76.7% | 73.6–79.6 |
| Cholesterol screening among adults | 85.6% | 83.7–87.3 |
| Colorectal cancer screening among adults aged 45–75 years | 61.3% | 57.1–65.3 |
| Visited dentist or dental clinic in the past year among adults | 54.2% | 50.7–57.7 |
| Mammography use among women aged 50-74 years | 72.8% | 66.1–79.1 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 15.1% | 13.0–17.6 |
| Current cigarette smoking among adults | 20.6% | 18.0–23.3 |
| No leisure-time physical activity among adults | 28.1% | 24.4–32.2 |
| Short sleep duration among adults | 39.8% | 34.4–45.4 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 24.4% | 21.6–27.4 |
| Frequent mental distress among adults | 20.8% | 18.8–22.9 |
| Frequent physical distress among adults | 16.8% | 15.1–18.7 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 19.1% | 17.0–21.3 |
| Any disability among adults | 37.5% | 33.6–41.5 |
| Hearing disability among adults | 8.6% | 7.7–9.5 |
| Independent living disability among adults | 10.3% | 9.2–11.5 |
| Mobility disability among adults | 17.6% | 15.7–19.8 |
| Self-care disability among adults | 4.4% | 4.0–5.0 |
| Vision disability among adults | 5.7% | 5.1–6.3 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | TN median (p10–p90) |
|---|---|---|---|
| Poverty rate | 12.4% | 10.6% (3.1–25.8%) n=32,364 | 13.8% (5.1–26.1%) n=609 |
| Uninsured 18–64 | 17.6% | 9.0% (1.5–24.3%) n=32,286 | 14.0% (5.9–24.0%) n=615 |
| No HS diploma (25+) | 17.3% | 7.9% (1.8–20.7%) n=32,505 | 11.6% (4.2–19.5%) n=613 |
| Bachelor's or higher (25+) | 15.7% | 23.3% (9.2–53.6%) n=32,505 | 19.0% (10.0–42.6%) n=613 |
| Unemployment rate (16+) | 6.5% | 3.9% (0.0–9.8%) n=32,274 | 4.0% (0.4–9.6%) n=613 |
| Households without a vehicle | 6.0% | 3.9% (0.0–12.5%) n=32,322 | 3.9% (0.3–10.1%) n=608 |
| Broadband subscription | 89.7% | 89.3% (75.1–97.1%) n=32,322 | 86.7% (76.0–94.9%) n=608 |
| Housing cost burden (≥30% income) | 23.6% | 23.7% (10.6–40.0%) n=32,322 | 21.4% (11.8–33.6%) n=608 |
| Homeownership rate | 81.5% | 78.7% (51.7–94.0%) n=32,322 | 77.7% (53.4–91.5%) n=608 |
| Crowded housing (>1 per room) | 6.1% | 1.3% (0.0–6.3%) n=32,322 | 1.5% (0.0–4.5%) n=608 |
| Foreign-born population | 1.6% | 2.6% (0.0–18.6%) n=32,553 | 1.8% (0.0–8.3%) n=617 |
| Single-parent households | 49.7% | 53.6% (37.3–74.1%) n=32,087 | 52.6% (39.1–68.7%) n=608 |
| Population 65+ | 14.2% | 19.4% (10.8–33.6%) n=32,553 | 19.0% (11.5–27.9%) n=617 |
| Median age | 33.9 yr | 42.2 yr (33.0–56.3) n=32,292 | 42.3 yr (33.8–52.5) n=615 |
| Median household income | $61,293 | $72,070 ($46,039–$118,707) n=30,318 | $61,577 ($42,745–$94,822) n=594 |
| Median home value | $219,800 | $222,200 ($100,300–$579,820) n=30,049 | $215,100 ($120,900–$397,120) n=593 |
| Median gross rent | $747 | $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 | 76.4 yr ± 1.04 | 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 1.04 years of 76.4, 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