ZIP code
37148
in Portland, TennesseePopulation 26,274
42.10/ 100
Ranked #25,128 of 32,066 US ZIPs (bottom 22%)
Ranked #264 of 616 Tennessee ZIPs (top 43%)
Ranked #88 of 110 Nashville-Davidson--Murfreesboro--Franklin, TN ZIPs (bottom 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.
Nitrate in drinking water
3.2%
in the top 5.0% nationally
Lower is healthier
ST98thUS95thDefinition & 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 ›Expected annual disaster loss
$0
in the top 6.1% nationally
Lower is healthier
ST88thUS94thDefinition & 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 ›Fine-particle (PM2.5) exceedance
0.27%
in the top 23% nationally
Lower is healthier
ST99thUS77thDefinition & 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
Portland, Tennessee (ZIP 37148), in overall standing, comes out in the bottom 22% nationally (25,128th) and the top 43% of Tennessee (264th).
A balanced showing across the data, with a few readings each side: distance to a nursing home rests at the national minimum, shared with about 27% of ZIPs. Subsidized affordable housing settles in the top 17% nationally. On the other hand, modeled nitrate lands in the top 5.0% nationally, and expected annual loss rests in the top 6.1% nationally. Modeled cognitive disability settles in the top 12.1% nationally, and obesity lands in the top 10.5% nationally. Distance to a hazardous-chemical facility rests at the national minimum, shared with about 31% of ZIPs. Modeled humid heat settles in the top 21% nationally, and mammography lands in the bottom 20% nationally. Modeled pfas rests in the top 22% nationally.
Defined simply, for reference, 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. 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. The closest healthier ZIP overall is ZIP 37022, 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 Nashville-Davidson--Murfreesboro--Franklin, TN metro area.
Compared with the ZIP codes measured across all nine scoring domains — not with all US ZIP codes.
Lifting this score
Social Need / SDOH
healthier than 60%
16%
About typical
Environmental Hazard
healthier than 42%
14%
Climate / Disaster Risk
healthier than 52%
5%
Healthcare Access
healthier than 44%
5%
Holding it back
Chronic Disease Burden
healthier than 36%
21%
Preventive Care
healthier than 19%
13%
Risk Behavior
healthier than 25%
11%
Mental Health
healthier than 3%
8%
Disability
healthier than 32%
7%
Lifting this score
Chronic Disease Burden
healthier than 70%
21%
Social Need / SDOH
healthier than 66%
16%
Disability
healthier than 65%
7%
Climate / Disaster Risk
healthier than 72%
5%
About typical
Risk Behavior
healthier than 49%
11%
Healthcare Access
healthier than 42%
5%
Holding it back
Environmental Hazard
healthier than 35%
14%
Preventive Care
healthier than 22%
13%
Mental Health
healthier than 12%
8%
Lifting this score
Climate / Disaster Risk
healthier than 79%
5%
About typical
Environmental Hazard
healthier than 46%
14%
Holding it back
Chronic Disease Burden
healthier than 27%
21%
Social Need / SDOH
healthier than 36%
16%
Preventive Care
healthier than 19%
13%
Risk Behavior
healthier than 25%
11%
Mental Health
healthier than 4%
8%
Disability
healthier than 24%
7%
Healthcare Access
healthier than 37%
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.
Below what income predicts
The ZIP codes that outlive their incomes
Estimated life expectancy is 74.3 ± 1.7 years. A median household income of $81,633 predicts 79.3 years — 5.0 years below.
Ranked #5,531 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
37022
Tennesseeshares a border
Score 43.08
Closest healthier
37048
Tennesseeshares a border
Score 48.55
Similar health profile
37025
Tennessee99% similar profile
Score 43.64
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 | 32.4% | 29.3–35.7 |
| High blood pressure among adults | 37.8% | 34.0–41.8 |
| Cancer (non-skin) or melanoma among adults | 8.3% | 7.5–9.1 |
| Current asthma among adults | 11.4% | 10.2–12.8 |
| Coronary heart disease among adults | 6.9% | 6.3–7.6 |
| Chronic obstructive pulmonary disease among adults | 9.4% | 8.5–10.3 |
| Depression among adults | 31.8% | 28.0–36.0 |
| Diagnosed diabetes among adults | 13.0% | 11.4–14.7 |
| High cholesterol among adults who have ever been screened | 39.5% | 35.5–43.7 |
| Obesity among adults | 42.6% | 35.8–49.7 |
| Stroke among adults | 3.6% | 3.4–3.9 |
| All teeth lost among adults aged >=65 years | 17.0% | 14.0–20.0 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 12.5% | 10.9–14.3 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 74.9% | 72.0–77.6 |
| Visits to doctor for routine checkup within the past year among adults | 76.2% | 72.8–79.6 |
| Cholesterol screening among adults | 85.6% | 83.8–87.3 |
| Colorectal cancer screening among adults aged 45–75 years | 62.1% | 56.8–66.5 |
| Visited dentist or dental clinic in the past year among adults | 56.9% | 53.1–60.2 |
| Mammography use among women aged 50-74 years | 71.1% | 62.5–77.8 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 15.0% | 12.5–17.9 |
| Current cigarette smoking among adults | 19.9% | 17.6–22.3 |
| No leisure-time physical activity among adults | 27.5% | 23.6–31.8 |
| Short sleep duration among adults | 38.8% | 32.5–44.6 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 23.6% | 21.1–26.3 |
| Frequent mental distress among adults | 21.1% | 19.0–23.4 |
| Frequent physical distress among adults | 16.1% | 14.4–17.9 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 19.4% | 17.5–21.3 |
| Any disability among adults | 37.7% | 33.7–41.9 |
| Hearing disability among adults | 7.9% | 7.1–8.8 |
| Independent living disability among adults | 10.1% | 9.1–11.1 |
| Mobility disability among adults | 16.4% | 14.7–18.3 |
| Self-care disability among adults | 4.2% | 3.9–4.6 |
| Vision disability among adults | 5.6% | 5.1–6.0 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | TN median (p10–p90) |
|---|---|---|---|
| Poverty rate | 10.8% | 10.6% (3.1–25.8%) n=32,364 | 13.8% (5.1–26.1%) n=609 |
| Uninsured 18–64 | 15.8% | 9.0% (1.5–24.3%) n=32,286 | 14.0% (5.9–24.0%) n=615 |
| No HS diploma (25+) | 12.3% | 7.9% (1.8–20.7%) n=32,505 | 11.6% (4.2–19.5%) n=613 |
| Bachelor's or higher (25+) | 15.1% | 23.3% (9.2–53.6%) n=32,505 | 19.0% (10.0–42.6%) n=613 |
| Unemployment rate (16+) | 4.3% | 3.9% (0.0–9.8%) n=32,274 | 4.0% (0.4–9.6%) n=613 |
| Households without a vehicle | 1.7% | 3.9% (0.0–12.5%) n=32,322 | 3.9% (0.3–10.1%) n=608 |
| Broadband subscription | 90.0% | 89.3% (75.1–97.1%) n=32,322 | 86.7% (76.0–94.9%) n=608 |
| Housing cost burden (≥30% income) | 27.2% | 23.7% (10.6–40.0%) n=32,322 | 21.4% (11.8–33.6%) n=608 |
| Homeownership rate | 75.7% | 78.7% (51.7–94.0%) n=32,322 | 77.7% (53.4–91.5%) n=608 |
| Crowded housing (>1 per room) | 1.3% | 1.3% (0.0–6.3%) n=32,322 | 1.5% (0.0–4.5%) n=608 |
| Foreign-born population | 2.6% | 2.6% (0.0–18.6%) n=32,553 | 1.8% (0.0–8.3%) n=617 |
| Single-parent households | 47.9% | 53.6% (37.3–74.1%) n=32,087 | 52.6% (39.1–68.7%) n=608 |
| Population 65+ | 13.5% | 19.4% (10.8–33.6%) n=32,553 | 19.0% (11.5–27.9%) n=617 |
| Median age | 37.3 yr | 42.2 yr (33.0–56.3) n=32,292 | 42.3 yr (33.8–52.5) n=615 |
| Median household income | $81,633 | $72,070 ($46,039–$118,707) n=30,318 | $61,577 ($42,745–$94,822) n=594 |
| Median home value | $295,000 | $222,200 ($100,300–$579,820) n=30,049 | $215,100 ($120,900–$397,120) n=593 |
| Median gross rent | $1,122 | $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 | 74.3 yr ± 0.87 | 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 0.87 years of 74.3, 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