ZIP code
38230
in Greenfield, TennesseePopulation 3,765
38.33/ 100
Ranked #27,829 of 32,066 US ZIPs (bottom 13.3%)
Ranked #401 of 616 Tennessee ZIPs (bottom 35%)
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 community health center
13.2 mi
in the top 14.5% nationally
Lower is healthier
ST92ndUS86thDefinition & source ›
The distance in miles from this ZIP’s edge to the nearest federally funded community health center, which serves patients regardless of ability to pay.
Full methodology ›Floodplain exposure
23.3%
in the top 14.5% nationally
Lower is healthier
ST91stUS86thDefinition & source ›
The share of this ZIP’s land area inside FEMA’s 1%-annual-chance floodplain — the “100-year” flood zone, where flooding has about a 1-in-100 chance in any given year.
Measured from FEMA’s mapped flood panels. Where a panel has not been mapped, no value is published for that ZIP — those ZIPs are absent from this comparison rather than counted as unexposed.
Full methodology ›The read
Greenfield, Tennessee (ZIP 38230) ranks in the bottom 13.3% nationally (27,829th) and the bottom 35% of Tennessee (401st).
A profile of give and take, with clear readings each way: housing-cost burden stands in the bottom 13.5% nationally, and modeled binge drinking sits in the bottom 17% nationally. Outer-floodplain exposure resides at the national minimum, shared with about 36% of ZIPs. On the other side, modeled expected annual loss stands in the top 12.0% nationally, modeled cognitive disability sits in the top 13.5% nationally, and distance to a community health center resides in the top 14.5% nationally. Floodplain exposure stands in the top 14.5% nationally. Distance to a hazardous-chemical facility sits at the national minimum, shared with about 31% of ZIPs. Recreation resides at the national minimum, shared with about 35% of ZIPs. Modeled independent living disability stands in the top 16% nationally.
For context, 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. Distance to a community health center is a federally funded (HRSA) community health center serving everyone regardless of ability to pay. The closest ZIP that ranks healthier overall is ZIP 38201, 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.
Compared with the ZIP codes measured across all nine scoring domains — not with all US ZIP codes.
Lifting this score
Environmental Hazard
healthier than 66%
14%
Holding it back
Chronic Disease Burden
healthier than 15%
21%
Social Need / SDOH
healthier than 37%
16%
Preventive Care
healthier than 30%
13%
Risk Behavior
healthier than 22%
11%
Mental Health
healthier than 6%
8%
Disability
healthier than 18%
7%
Climate / Disaster Risk
healthier than 20%
5%
Healthcare Access
healthier than 15%
5%
Lifting this score
Environmental Hazard
healthier than 62%
14%
About typical
Chronic Disease Burden
healthier than 41%
21%
Preventive Care
healthier than 50%
13%
Risk Behavior
healthier than 42%
11%
Mental Health
healthier than 47%
8%
Disability
healthier than 42%
7%
Holding it back
Social Need / SDOH
healthier than 29%
16%
Climate / Disaster Risk
healthier than 8%
5%
Healthcare Access
healthier than 10%
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 65.5; chronic-disease standing 15.5 — 50 points apart, cleaner on the environment than it is on chronic illness.
Ranked #2,494 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
38201
Tennesseeshares a border
Score 40.23
Closest healthier
38255
Tennesseeshares a border
Score 38.96
Similar health profile
38044
Tennessee99% similar profile
Score 37.86
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 | 35.6% | 31.9–39.5 |
| High blood pressure among adults | 42.8% | 38.6–47.5 |
| Cancer (non-skin) or melanoma among adults | 9.8% | 8.9–11.0 |
| Current asthma among adults | 11.3% | 10.0–12.8 |
| Coronary heart disease among adults | 8.8% | 7.8–10.0 |
| Chronic obstructive pulmonary disease among adults | 11.4% | 9.9–13.0 |
| Depression among adults | 29.7% | 25.7–34.1 |
| Diagnosed diabetes among adults | 15.7% | 13.7–18.2 |
| High cholesterol among adults who have ever been screened | 41.2% | 36.9–45.9 |
| Obesity among adults | 40.7% | 33.3–48.9 |
| Stroke among adults | 4.6% | 4.1–5.1 |
| All teeth lost among adults aged >=65 years | 19.6% | 15.9–23.0 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 11.5% | 9.4–13.8 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 79.3% | 76.5–82.0 |
| Visits to doctor for routine checkup within the past year among adults | 78.8% | 75.3–82.3 |
| Cholesterol screening among adults | 86.6% | 84.7–88.5 |
| Colorectal cancer screening among adults aged 45–75 years | 62.6% | 56.4–67.3 |
| Visited dentist or dental clinic in the past year among adults | 54.2% | 49.7–57.8 |
| Mammography use among women aged 50-74 years | 71.8% | 62.1–78.9 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 13.3% | 10.8–16.1 |
| Current cigarette smoking among adults | 20.5% | 17.4–24.0 |
| No leisure-time physical activity among adults | 30.1% | 25.2–35.5 |
| Short sleep duration among adults | 40.1% | 32.4–46.9 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 25.6% | 22.2–29.3 |
| Frequent mental distress among adults | 20.2% | 17.9–22.6 |
| Frequent physical distress among adults | 17.3% | 15.2–19.6 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 19.1% | 16.7–21.7 |
| Any disability among adults | 40.3% | 35.3–45.6 |
| Hearing disability among adults | 9.6% | 8.5–10.9 |
| Independent living disability among adults | 11.3% | 9.9–12.8 |
| Mobility disability among adults | 20.0% | 17.3–23.0 |
| Self-care disability among adults | 5.0% | 4.4–5.7 |
| Vision disability among adults | 6.5% | 5.7–7.3 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | TN median (p10–p90) |
|---|---|---|---|
| Poverty rate | 12.1% | 10.6% (3.1–25.8%) n=32,364 | 13.8% (5.1–26.1%) n=609 |
| Uninsured 18–64 | 11.7% | 9.0% (1.5–24.3%) n=32,286 | 14.0% (5.9–24.0%) n=615 |
| No HS diploma (25+) | 10.5% | 7.9% (1.8–20.7%) n=32,505 | 11.6% (4.2–19.5%) n=613 |
| Bachelor's or higher (25+) | 20.8% | 23.3% (9.2–53.6%) n=32,505 | 19.0% (10.0–42.6%) n=613 |
| Unemployment rate (16+) | 1.8% | 3.9% (0.0–9.8%) n=32,274 | 4.0% (0.4–9.6%) n=613 |
| Households without a vehicle | 4.1% | 3.9% (0.0–12.5%) n=32,322 | 3.9% (0.3–10.1%) n=608 |
| Broadband subscription | 82.5% | 89.3% (75.1–97.1%) n=32,322 | 86.7% (76.0–94.9%) n=608 |
| Housing cost burden (≥30% income) | 12.6% | 23.7% (10.6–40.0%) n=32,322 | 21.4% (11.8–33.6%) n=608 |
| Homeownership rate | 82.7% | 78.7% (51.7–94.0%) n=32,322 | 77.7% (53.4–91.5%) n=608 |
| Crowded housing (>1 per room) | 0.5% | 1.3% (0.0–6.3%) n=32,322 | 1.5% (0.0–4.5%) n=608 |
| Foreign-born population | 2.3% | 2.6% (0.0–18.6%) n=32,553 | 1.8% (0.0–8.3%) n=617 |
| Single-parent households | 39.1% | 53.6% (37.3–74.1%) n=32,087 | 52.6% (39.1–68.7%) n=608 |
| Population 65+ | 17.9% | 19.4% (10.8–33.6%) n=32,553 | 19.0% (11.5–27.9%) n=617 |
| Median age | 40.9 yr | 42.2 yr (33.0–56.3) n=32,292 | 42.3 yr (33.8–52.5) n=615 |
| Median household income | $55,365 | $72,070 ($46,039–$118,707) n=30,318 | $61,577 ($42,745–$94,822) n=594 |
| Median home value | $98,600 | $222,200 ($100,300–$579,820) n=30,049 | $215,100 ($120,900–$397,120) n=593 |
| Median gross rent | $772 | $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 | 73.2 yr ± 1.03 | 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 1.03 years of 73.2, 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