ZIP code
72845
in Knoxville, ArkansasPopulation 1,063
40.28/ 100
Ranked #26,564 of 32,066 US ZIPs (bottom 17%)
Ranked #247 of 562 Arkansas ZIPs (top 44%)
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.
Floodplain exposure
47.4%
in the top 4.5% nationally
Lower is healthier
ST86thUS96thDefinition & 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 ›Home broadband subscription
67.3%
in the bottom 4.9% nationally
Higher is healthier
ST13thUS5thDefinition & source ›
The share of households with a broadband internet subscription.
Full methodology ›Mammography
67.6%
in the bottom 6.7% nationally
Higher is healthier
ST18thUS7thDefinition & source ›
The estimated share of women aged 50–74 who had a mammogram within the past two years.
Full methodology ›Loud transportation noise
2.1%
in the top 6.7% nationally
Lower is healthier
ST95thUS93rdDefinition & source ›
The modeled share of residents exposed to average road, rail, and aviation noise at or above 65 decibels — around the volume of normal conversation.
Full methodology ›Transportation noise
8.4%
in the top 11.2% nationally
Lower is healthier
ST90thUS89thDefinition & source ›
The modeled share of residents exposed to average road, rail, and aviation noise at or above 55 decibels — a noticeable background presence.
Full methodology ›PFAS in drinking water
32.7%
in the top 33% nationally
Lower is healthier
ST90thUS67thDefinition & 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 ›The read
Judged by its overall standing, Knoxville, Arkansas (ZIP 72845) sits in the bottom 17% nationally (26,564th) and the top 44% of Arkansas (247th).
A few readings each way define this mixed profile: fiber broadband lands in the top 14.5% nationally. Pulling the other way, floodplain exposure rests in the top 4.5% nationally, home broadband subscription settles in the bottom 4.9% nationally, and modeled mammography lands in the bottom 6.7% nationally. Modeled loud transportation noise rests in the top 6.7% nationally, and transportation noise settles in the top 11.2% nationally. Crowded housing lands in the top 11.8% nationally, and modeled cognitive disability rests in the top 14.6% nationally. Modeled humid heat settles in the top 15% nationally, and extreme heat lands in the top 17% nationally.
Placed beside its immediate neighbors, park land runs far lower than the surrounding ZIPs on this measure. Put plainly, floodplain exposure is land with about a 1-in-100 chance of flooding each year, nicknamed the "100-year floodplain". Loud transportation noise is the modeled share of an area exposed to road, rail, and air noise at or above 65 decibels, near conversation volume. Transportation noise is the modeled share of an area exposed to average road, rail, and air noise at or above 55 decibels. A healthier nearby ZIP overall is ZIP 72835, 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.
Nothing measured is lifting this score.
About typical
Environmental Hazard
healthier than 52%
14%
Healthcare Access
healthier than 48%
5%
Holding it back
Chronic Disease Burden
healthier than 37%
21%
Social Need / SDOH
healthier than 22%
16%
Preventive Care
healthier than 18%
13%
Risk Behavior
healthier than 16%
11%
Mental Health
healthier than 17%
8%
Disability
healthier than 25%
7%
Climate / Disaster Risk
healthier than 4%
5%
Lifting this score
Chronic Disease Burden
healthier than 74%
21%
Disability
healthier than 67%
7%
About typical
Healthcare Access
healthier than 47%
5%
Holding it back
Social Need / SDOH
healthier than 36%
16%
Environmental Hazard
healthier than 28%
14%
Preventive Care
healthier than 28%
13%
Risk Behavior
healthier than 38%
11%
Mental Health
healthier than 38%
8%
Climate / Disaster Risk
healthier than 14%
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
72835
Arkansasshares a border
Score 43.39
Closest healthier
72846
Arkansasshares a border
Score 42.63
Similar health profile
72564
Arkansas99% similar profile
Score 38.07
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 | 29.5% | 26.0–33.1 |
| High blood pressure among adults | 41.4% | 36.9–45.9 |
| Cancer (non-skin) or melanoma among adults | 8.6% | 7.7–9.5 |
| Current asthma among adults | 10.4% | 9.1–11.7 |
| Coronary heart disease among adults | 8.3% | 7.2–9.3 |
| Chronic obstructive pulmonary disease among adults | 9.5% | 8.1–10.9 |
| Depression among adults | 25.8% | 21.9–29.8 |
| Diagnosed diabetes among adults | 13.2% | 11.2–15.1 |
| High cholesterol among adults who have ever been screened | 40.2% | 35.6–44.7 |
| Obesity among adults | 36.4% | 28.8–44.4 |
| Stroke among adults | 4.0% | 3.6–4.5 |
| All teeth lost among adults aged >=65 years | 17.7% | 14.5–21.4 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 10.5% | 8.4–12.8 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 77.5% | 74.3–80.3 |
| Visits to doctor for routine checkup within the past year among adults | 77.5% | 73.6–81.1 |
| Cholesterol screening among adults | 84.5% | 82.3–86.7 |
| Colorectal cancer screening among adults aged 45–75 years | 63.1% | 57.6–68.3 |
| Visited dentist or dental clinic in the past year among adults | 51.2% | 47.3–55.3 |
| Mammography use among women aged 50-74 years | 67.6% | 58.4–75.9 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 15.1% | 12.3–18.3 |
| Current cigarette smoking among adults | 18.0% | 15.0–21.2 |
| No leisure-time physical activity among adults | 33.1% | 27.7–38.6 |
| Short sleep duration among adults | 39.8% | 32.9–47.0 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 24.9% | 21.3–28.5 |
| Frequent mental distress among adults | 19.3% | 16.8–21.7 |
| Frequent physical distress among adults | 16.9% | 14.7–19.2 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 18.9% | 16.4–21.6 |
| Any disability among adults | 38.9% | 33.7–43.9 |
| Hearing disability among adults | 9.4% | 8.2–10.5 |
| Independent living disability among adults | 10.1% | 8.7–11.5 |
| Mobility disability among adults | 17.8% | 15.2–20.4 |
| Self-care disability among adults | 4.6% | 4.0–5.3 |
| Vision disability among adults | 6.0% | 5.2–6.7 |
Health-Related Social NeedsCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Lack of social and emotional support among adults | 26.4% | 22.5–30.8 |
| Food insecurity in the past 12 months among adults | 16.9% | 13.9–20.6 |
| Received food stamps in the past 12 months among adults | 10.3% | 8.3–12.8 |
| Housing insecurity in the past 12 months among adults | 12.8% | 10.8–15.3 |
| Lack of reliable transportation in the past 12 months among adults | 8.8% | 7.6–10.4 |
| Loneliness among adults | 33.2% | 28.0–38.8 |
| Utility services shut-off threat in the past 12 months among adults | 9.1% | 7.7–10.7 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | AR median (p10–p90) |
|---|---|---|---|
| Poverty rate | 20.3% | 10.6% (3.1–25.8%) n=32,364 | 16.3% (4.0–30.6%) n=574 |
| Uninsured 18–64 | 10.6% | 9.0% (1.5–24.3%) n=32,286 | 11.3% (1.5–24.1%) n=573 |
| No HS diploma (25+) | 3.9% | 7.9% (1.8–20.7%) n=32,505 | 12.0% (3.7–23.0%) n=577 |
| Bachelor's or higher (25+) | 10.4% | 23.3% (9.2–53.6%) n=32,505 | 15.5% (4.4–30.5%) n=577 |
| Unemployment rate (16+) | 2.0% | 3.9% (0.0–9.8%) n=32,274 | 3.9% (0.0–11.6%) n=573 |
| Households without a vehicle | 2.7% | 3.9% (0.0–12.5%) n=32,322 | 4.1% (0.0–12.5%) n=574 |
| Broadband subscription | 67.3% | 89.3% (75.1–97.1%) n=32,322 | 83.2% (65.0–94.7%) n=574 |
| Housing cost burden (≥30% income) | 21.5% | 23.7% (10.6–40.0%) n=32,322 | 20.4% (4.3–33.2%) n=574 |
| Homeownership rate | 87.9% | 78.7% (51.7–94.0%) n=32,322 | 77.6% (57.7–96.1%) n=574 |
| Crowded housing (>1 per room) | 5.6% | 1.3% (0.0–6.3%) n=32,322 | 1.3% (0.0–5.7%) n=574 |
| Foreign-born population | 0.8% | 2.6% (0.0–18.6%) n=32,553 | 0.8% (0.0–6.5%) n=578 |
| Single-parent households | 61.4% | 53.6% (37.3–74.1%) n=32,087 | 53.0% (35.3–79.3%) n=571 |
| Population 65+ | 12.6% | 19.4% (10.8–33.6%) n=32,553 | 19.7% (11.6–37.9%) n=578 |
| Median age | 41.7 yr | 42.2 yr (33.0–56.3) n=32,292 | 42.6 yr (33.6–58.1) n=573 |
| Median household income | $63,462 | $72,070 ($46,039–$118,707) n=30,318 | $53,893 ($36,003–$79,139) n=505 |
| Median home value | $118,500 | $222,200 ($100,300–$579,820) n=30,049 | $128,200 ($73,260–$235,420) n=519 |
| Median gross rent | $933 | $1,021 ($677–$1,912) n=25,670 | $800 ($568–$1,094) n=393 |
Life expectancyNCHS / RWJF USALEEP · model-based
| Measure | Value | US median (p10–p90) | AR median (p10–p90) |
|---|---|---|---|
| Life expectancy at birth | 80.6 yr ± 1.62 | 78.9 yr (74.7–82.8) n=31,308 | 76.2 yr (73.4–79.7) n=580 |
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 1.62 years of 80.6, 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