ZIP code
37748
in Harriman, TennesseePopulation 17,575
38.29/ 100
Ranked #27,854 of 32,066 US ZIPs (bottom 13.2%)
Ranked #403 of 616 Tennessee ZIPs (bottom 35%)
Ranked #53 of 72 Knoxville, TN ZIPs (bottom 26%)
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.
Distance to a Superfund site
In this ZIP
at the national minimum
Higher is healthier
ST1stUS1stDefinition & source ›
The distance in miles from this ZIP’s edge to the nearest Superfund site — an abandoned or uncontrolled hazardous-waste site the EPA has listed for cleanup.
Full methodology ›Expected annual disaster loss
$0
in the top 8.5% nationally
Lower is healthier
ST84thUS92ndDefinition & 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 ›PFAS in drinking water
55.6%
in the top 10.1% nationally
Lower is healthier
ST99thUS90thDefinition & 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 ›Radon
2.4 pCi/L
in the top 23% nationally
Lower is healthier
ST93rdUS77thDefinition & source ›
The modeled typical indoor radon level for this area, in picocuries per liter — the EPA recommends fixing a home at 4 pCi/L or above.
Modeled from indoor-radon measurements. In Alaska and Hawaii, where those measurements are not published, a US Geological Survey geologic radon-potential category stands in — a coarser input, disclosed rather than hidden.
Full methodology ›Fiber broadband
8.1%
in the bottom 32% nationally
Higher is healthier
ST10thUS32ndDefinition & source ›
The share of homes where fiber-optic internet service is available.
Full methodology ›The read
Harriman, Tennessee (ZIP 37748), overall, ranks in the bottom 13.2% nationally (27,854th) and the bottom 35% of Tennessee (403rd).
This area's measures are easy to read as a mixed set: distance to an emergency room is at the national minimum, shared with about 11% of ZIPs. Modeled tree cover sits in the top 12.1% nationally. Distance to a nursing home lands at the national minimum, shared with about 27% of ZIPs. Pharmacy lies in the top 14.8% nationally, and subsidized affordable housing stands in the top 15% nationally. Set against that, distance to a Superfund site rests at the national minimum, and modeled expected annual loss registers in the top 8.5% nationally. Modeled pfas resides in the top 10.1% nationally, and cognitive disability settles in the top 12.1% nationally. Modeled mobility disability is in the top 13.9% nationally.
Defined simply, distance to a Superfund site is an abandoned or uncontrolled hazardous-waste site the EPA has identified for cleanup. Expected annual loss is FEMA's modeled estimate, in dollars, of average yearly harm to people from natural hazards. 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. ZIP 37719, 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 Knoxville, TN metro area.
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
Social Need / SDOH
healthier than 55%
16%
Climate / Disaster Risk
healthier than 45%
5%
Healthcare Access
healthier than 56%
5%
Holding it back
Chronic Disease Burden
healthier than 13%
21%
Environmental Hazard
healthier than 31%
14%
Preventive Care
healthier than 31%
13%
Risk Behavior
healthier than 16%
11%
Mental Health
healthier than 5%
8%
Disability
healthier than 16%
7%
Nothing measured is lifting this score.
About typical
Social Need / SDOH
healthier than 58%
16%
Preventive Care
healthier than 53%
13%
Climate / Disaster Risk
healthier than 55%
5%
Healthcare Access
healthier than 57%
5%
Holding it back
Chronic Disease Burden
healthier than 32%
21%
Environmental Hazard
healthier than 23%
14%
Risk Behavior
healthier than 29%
11%
Mental Health
healthier than 35%
8%
Disability
healthier than 33%
7%
Nothing measured is lifting this score.
About typical
Environmental Hazard
healthier than 44%
14%
Preventive Care
healthier than 45%
13%
Healthcare Access
healthier than 42%
5%
Holding it back
Chronic Disease Burden
healthier than 25%
21%
Social Need / SDOH
healthier than 35%
16%
Risk Behavior
healthier than 23%
11%
Mental Health
healthier than 37%
8%
Disability
healthier than 27%
7%
Climate / Disaster Risk
healthier than 38%
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
2 of our published findings list 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 73.0 ± 1.3 years. A median household income of $64,883 predicts 78.4 years — 5.4 years below.
Ranked #5,641 of the 5,842 ZIP codes this finding names, ordered by years above what income predicts, highest first.
Below its nearby ZIPs
The ZIP codes that outlive their neighbors
Estimated life expectancy is 73.0 ± 1.3 years. The 46 nearest ZIP codes with estimates average 75.5 years — 2.6 years below them.
Ranked #2,005 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
37719
Tennesseeshares a border
Score 42.27
Closest healthier
37763
Tennesseeshares a border
Score 47.15
Similar health profile
37334
Tennessee99% similar profile
Score 41.66
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 | 37.6% | 34.2–40.9 |
| High blood pressure among adults | 44.1% | 40.2–48.0 |
| Cancer (non-skin) or melanoma among adults | 9.9% | 9.1–10.8 |
| Current asthma among adults | 11.4% | 10.2–12.7 |
| Coronary heart disease among adults | 9.2% | 8.3–10.0 |
| Chronic obstructive pulmonary disease among adults | 11.8% | 10.7–13.1 |
| Depression among adults | 30.8% | 27.1–34.7 |
| Diagnosed diabetes among adults | 15.6% | 13.8–17.5 |
| High cholesterol among adults who have ever been screened | 42.0% | 37.9–46.0 |
| Obesity among adults | 39.0% | 32.1–46.2 |
| Stroke among adults | 4.7% | 4.3–5.0 |
| All teeth lost among adults aged >=65 years | 21.0% | 17.5–24.8 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 11.9% | 10.3–13.6 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 78.9% | 76.3–81.3 |
| Visits to doctor for routine checkup within the past year among adults | 79.2% | 75.9–82.1 |
| Cholesterol screening among adults | 86.3% | 84.6–87.8 |
| Colorectal cancer screening among adults aged 45–75 years | 63.0% | 57.8–67.9 |
| Visited dentist or dental clinic in the past year among adults | 55.1% | 51.3–58.8 |
| Mammography use among women aged 50-74 years | 72.2% | 64.1–79.3 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 13.5% | 11.2–16.0 |
| Current cigarette smoking among adults | 21.4% | 19.0–24.1 |
| No leisure-time physical activity among adults | 31.6% | 27.5–36.0 |
| Short sleep duration among adults | 40.0% | 33.4–46.6 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 26.8% | 23.9–29.6 |
| Frequent mental distress among adults | 20.1% | 18.2–22.3 |
| Frequent physical distress among adults | 18.2% | 16.4–20.2 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 19.4% | 17.5–21.4 |
| Any disability among adults | 41.4% | 37.2–45.7 |
| Hearing disability among adults | 9.8% | 8.9–10.9 |
| Independent living disability among adults | 11.5% | 10.3–12.6 |
| Mobility disability among adults | 20.8% | 18.6–23.1 |
| Self-care disability among adults | 5.2% | 4.8–5.7 |
| Vision disability among adults | 6.6% | 6.1–7.2 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | TN median (p10–p90) |
|---|---|---|---|
| Poverty rate | 13.2% | 10.6% (3.1–25.8%) n=32,364 | 13.8% (5.1–26.1%) n=609 |
| Uninsured 18–64 | 14.9% | 9.0% (1.5–24.3%) n=32,286 | 14.0% (5.9–24.0%) n=615 |
| No HS diploma (25+) | 11.3% | 7.9% (1.8–20.7%) n=32,505 | 11.6% (4.2–19.5%) n=613 |
| Bachelor's or higher (25+) | 20.2% | 23.3% (9.2–53.6%) n=32,505 | 19.0% (10.0–42.6%) n=613 |
| Unemployment rate (16+) | 3.1% | 3.9% (0.0–9.8%) n=32,274 | 4.0% (0.4–9.6%) n=613 |
| Households without a vehicle | 8.5% | 3.9% (0.0–12.5%) n=32,322 | 3.9% (0.3–10.1%) n=608 |
| Broadband subscription | 89.1% | 89.3% (75.1–97.1%) n=32,322 | 86.7% (76.0–94.9%) n=608 |
| Housing cost burden (≥30% income) | 25.4% | 23.7% (10.6–40.0%) n=32,322 | 21.4% (11.8–33.6%) n=608 |
| Homeownership rate | 75.3% | 78.7% (51.7–94.0%) n=32,322 | 77.7% (53.4–91.5%) n=608 |
| Crowded housing (>1 per room) | 1.2% | 1.3% (0.0–6.3%) n=32,322 | 1.5% (0.0–4.5%) n=608 |
| Foreign-born population | 1.0% | 2.6% (0.0–18.6%) n=32,553 | 1.8% (0.0–8.3%) n=617 |
| Single-parent households | 52.6% | 53.6% (37.3–74.1%) n=32,087 | 52.6% (39.1–68.7%) n=608 |
| Population 65+ | 20.9% | 19.4% (10.8–33.6%) n=32,553 | 19.0% (11.5–27.9%) n=617 |
| Median age | 45.8 yr | 42.2 yr (33.0–56.3) n=32,292 | 42.3 yr (33.8–52.5) n=615 |
| Median household income | $64,883 | $72,070 ($46,039–$118,707) n=30,318 | $61,577 ($42,745–$94,822) n=594 |
| Median home value | $196,900 | $222,200 ($100,300–$579,820) n=30,049 | $215,100 ($120,900–$397,120) n=593 |
| Median gross rent | $792 | $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 | 73.0 yr ± 0.66 | 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 0.66 years of 73.0, 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