ZIP code
33584
in Seffner, FloridaPopulation 28,579
49.84/ 100
Ranked #16,465 of 32,066 US ZIPs (bottom 49%)
Ranked #588 of 974 Florida ZIPs (bottom 40%)
Ranked #87 of 133 Tampa-St. Petersburg-Clearwater, FL 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.
Humid extreme heat
190.6 days/year
in the top 0.9% nationally
Lower is healthier
ST68thUS99thDefinition & source ›
The average number of days per year when modeled heat stress — temperature, humidity, sun, and wind combined — reaches levels hard on the body outdoors.
Full 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 ›PFAS in drinking water
77.5%
in the top 2.4% nationally
Lower is healthier
ST80thUS98thDefinition & 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 ›Arsenic in groundwater
1.3%
in the bottom 8.2% nationally
Lower is healthier
ST43rdUS8thDefinition & 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 ›Uninsured (under 65)
16.7%
in the top 8.0% nationally
Lower is healthier
ST71stUS92ndDefinition & source ›
The estimated share of adults aged 18–64 with no current health-insurance coverage.
Full methodology ›Expected annual disaster loss
$0
in the top 9.6% nationally
Lower is healthier
ST93rdUS90thDefinition & 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 ›Fiber broadband
84.2%
in the top 20% nationally
Higher is healthier
ST93rdUS80thDefinition & source ›
The share of homes where fiber-optic internet service is available.
Full methodology ›The read
Seffner, Florida (ZIP 33584), by its composite score, sits in the bottom 49% nationally (16,465th) and the bottom 40% of Florida (588th).
The measures that define this area's challenges come through directly: modeled humid heat sits in the top 0.9% nationally, and distance to a Superfund site lies at the national minimum. Modeled pfas rests in the top 2.4% nationally, and uninsured resides in the top 8.0% nationally. Modeled expected annual loss is in the top 9.6% nationally, modeled loud transportation noise lands in the top 11.2% nationally, and PFOS in drinking water stands in the top 11.3% nationally. Modeled industrial-pollution burden registers in the top 12.1% nationally, and floodplain exposure settles in the top 17% nationally. On the stronger side, modeled arsenic sits in the bottom 8.2% nationally.
Next to the surrounding area, park land runs far lower than the surrounding ZIPs on this measure. For anyone unfamiliar, distance to a Superfund site is an abandoned or uncontrolled hazardous-waste site the EPA has identified for cleanup. 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. Arsenic is a natural groundwater contaminant, here a modeled estimate of the chance private-well levels exceed a benchmark. For a healthier comparison close by, see ZIP 33510, 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 Tampa-St. Petersburg-Clearwater, FL metro area.
Compared with the ZIP codes measured across all nine scoring domains — not with all US ZIP codes.
Lifting this score
Chronic Disease Burden
healthier than 62%
21%
Mental Health
healthier than 73%
8%
Healthcare Access
healthier than 71%
5%
About typical
Social Need / SDOH
healthier than 58%
16%
Disability
healthier than 46%
7%
Holding it back
Environmental Hazard
healthier than 33%
14%
Preventive Care
healthier than 20%
13%
Risk Behavior
healthier than 35%
11%
Climate / Disaster Risk
healthier than 13%
5%
Lifting this score
Chronic Disease Burden
healthier than 61%
21%
Climate / Disaster Risk
healthier than 62%
5%
About typical
Mental Health
healthier than 41%
8%
Disability
healthier than 52%
7%
Healthcare Access
healthier than 51%
5%
Holding it back
Social Need / SDOH
healthier than 34%
16%
Environmental Hazard
healthier than 9%
14%
Preventive Care
healthier than 31%
13%
Risk Behavior
healthier than 28%
11%
Nothing measured is lifting this score.
About typical
Chronic Disease Burden
healthier than 54%
21%
Disability
healthier than 42%
7%
Climate / Disaster Risk
healthier than 59%
5%
Holding it back
Social Need / SDOH
healthier than 20%
16%
Environmental Hazard
healthier than 13%
14%
Preventive Care
healthier than 24%
13%
Risk Behavior
healthier than 19%
11%
Mental Health
healthier than 39%
8%
Healthcare Access
healthier than 31%
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
33510
Floridashares a border
Score 54.87
Closest healthier
33594
Floridashares a border
Score 56.33
Similar health profile
32703
Florida98% similar profile
Score 51.91
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 | 24.4% | 21.9–27.0 |
| High blood pressure among adults | 36.4% | 33.1–39.7 |
| Cancer (non-skin) or melanoma among adults | 7.6% | 6.9–8.3 |
| Current asthma among adults | 10.0% | 8.9–11.2 |
| Coronary heart disease among adults | 6.7% | 6.1–7.4 |
| Chronic obstructive pulmonary disease among adults | 7.5% | 6.8–8.4 |
| Depression among adults | 17.8% | 15.3–20.4 |
| Diagnosed diabetes among adults | 13.3% | 11.8–15.0 |
| High cholesterol among adults who have ever been screened | 40.8% | 37.2–44.4 |
| Obesity among adults | 32.9% | 28.1–37.9 |
| Stroke among adults | 3.6% | 3.3–3.9 |
| All teeth lost among adults aged >=65 years | 14.4% | 12.0–17.0 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 16.7% | 14.8–18.7 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 75.5% | 72.4–78.1 |
| Visits to doctor for routine checkup within the past year among adults | 76.4% | 73.2–79.3 |
| Cholesterol screening among adults | 84.7% | 83.0–86.4 |
| Colorectal cancer screening among adults aged 45–75 years | 62.8% | 58.2–67.0 |
| Visited dentist or dental clinic in the past year among adults | 54.2% | 50.9–57.4 |
| Mammography use among women aged 50-74 years | 77.0% | 70.4–82.4 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 16.2% | 13.7–18.9 |
| Current cigarette smoking among adults | 14.9% | 13.1–17.0 |
| No leisure-time physical activity among adults | 26.1% | 22.8–29.6 |
| Short sleep duration among adults | 39.8% | 35.2–44.4 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 21.7% | 19.5–24.1 |
| Frequent mental distress among adults | 17.9% | 16.0–19.8 |
| Frequent physical distress among adults | 14.8% | 13.3–16.5 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 15.3% | 13.8–17.0 |
| Any disability among adults | 32.4% | 29.1–35.9 |
| Hearing disability among adults | 6.7% | 6.0–7.5 |
| Independent living disability among adults | 8.9% | 8.1–9.9 |
| Mobility disability among adults | 15.0% | 13.4–16.8 |
| Self-care disability among adults | 4.4% | 4.1–4.9 |
| Vision disability among adults | 6.4% | 5.9–7.0 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | FL median (p10–p90) |
|---|---|---|---|
| Poverty rate | 11.3% | 10.6% (3.1–25.8%) n=32,364 | 11.4% (5.3–23.2%) n=972 |
| Uninsured 18–64 | 17.2% | 9.0% (1.5–24.3%) n=32,286 | 15.9% (7.1–27.2%) n=968 |
| No HS diploma (25+) | 13.0% | 7.9% (1.8–20.7%) n=32,505 | 8.7% (2.9–20.6%) n=977 |
| Bachelor's or higher (25+) | 25.7% | 23.3% (9.2–53.6%) n=32,505 | 29.1% (12.7–56.0%) n=977 |
| Unemployment rate (16+) | 4.4% | 3.9% (0.0–9.8%) n=32,274 | 4.4% (1.8–7.7%) n=968 |
| Households without a vehicle | 3.5% | 3.9% (0.0–12.5%) n=32,322 | 4.3% (1.2–11.0%) n=972 |
| Broadband subscription | 90.6% | 89.3% (75.1–97.1%) n=32,322 | 91.9% (83.2–96.9%) n=972 |
| Housing cost burden (≥30% income) | 33.1% | 23.7% (10.6–40.0%) n=32,322 | 33.2% (20.1–47.6%) n=972 |
| Homeownership rate | 75.3% | 78.7% (51.7–94.0%) n=32,322 | 74.9% (47.3–90.5%) n=972 |
| Crowded housing (>1 per room) | 2.0% | 1.3% (0.0–6.3%) n=32,322 | 2.2% (0.2–6.7%) n=972 |
| Foreign-born population | 13.7% | 2.6% (0.0–18.6%) n=32,553 | 11.5% (2.3–39.9%) n=977 |
| Single-parent households | 48.0% | 53.6% (37.3–74.1%) n=32,087 | 52.8% (38.7–75.3%) n=968 |
| Population 65+ | 16.9% | 19.4% (10.8–33.6%) n=32,553 | 20.4% (11.9–40.6%) n=977 |
| Median age | 42.3 yr | 42.2 yr (33.0–56.3) n=32,292 | 43.0 yr (35.1–59.8) n=972 |
| Median household income | $72,267 | $72,070 ($46,039–$118,707) n=30,318 | $72,857 ($48,246–$112,420) n=946 |
| Median home value | $311,300 | $222,200 ($100,300–$579,820) n=30,049 | $334,600 ($168,120–$631,410) n=932 |
| Median gross rent | $1,502 | $1,021 ($677–$1,912) n=25,670 | $1,604 ($968–$2,218) n=901 |
Life expectancyNCHS / RWJF USALEEP · model-based
| Measure | Value | US median (p10–p90) | FL median (p10–p90) |
|---|---|---|---|
| Life expectancy at birth | 78.3 yr ± 0.87 | 78.9 yr (74.7–82.8) n=31,308 | 78.2 yr (74.6–82.2) n=894 |
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 78.3, 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