ZIP code
77511
in Alvin, TexasPopulation 51,892
45.72/ 100
Ranked #21,626 of 32,066 US ZIPs (bottom 33%)
Ranked #887 of 1,868 Texas ZIPs (top 47%)
Ranked #136 of 237 Houston-Pasadena-The Woodlands, TX ZIPs (bottom 43%)
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.
Industrial-pollution burden
in the top 1.9% nationally
Lower is healthier
ST93rdUS98thDefinition & source ›
The EPA’s modeled screening score for industrial chemical releases, weighting the amounts released by their toxicity and how many people live nearby — a relative comparison score, not a measured exposure.
Full methodology ›Uninsured (under 65)
19.9%
in the top 4.6% nationally
Lower is healthier
ST66thUS95thDefinition & source ›
The estimated share of adults aged 18–64 with no current health-insurance coverage.
Full methodology ›Outer-floodplain exposure
12.6%
in the top 3.1% nationally
Lower is healthier
ST93rdUS97thDefinition & source ›
The share of this ZIP’s land area inside FEMA’s 0.2%-annual-chance flood band — the “500-year” zone, a lower but real 1-in-500 yearly chance.
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 ›Expected annual disaster loss
$0
in the top 4.3% nationally
Lower is healthier
ST92ndUS96thDefinition & 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 ›Humid extreme heat
149.8 days/year
in the top 4.8% nationally
Lower is healthier
ST71stUS95thDefinition & 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 ›Short sleep
42.3%
in the top 8.3% nationally
Lower is healthier
ST90thUS92ndDefinition & source ›
The estimated share of adults who usually sleep less than seven hours in a 24-hour period.
Full methodology ›Floodplain exposure
32.2%
in the top 9.0% nationally
Lower is healthier
ST86thUS91stDefinition & 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 ›Radon
0.6 pCi/L
in the bottom 1.6% nationally
Lower is healthier
ST12thUS2ndDefinition & 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 ›Natural-disaster risk
in the top 9.6% nationally
Lower is healthier
ST82ndUS90thDefinition & source ›
This area’s national rank on its single highest non-flood natural hazard — such as wildfire, tornado, or earthquake — in FEMA’s modeled National Risk Index; flooding is shown separately.
Full methodology ›Dry extreme heat
24.6 days/year
in the top 19% nationally
Lower is healthier
ST5thUS81stDefinition & source ›
The average number of days per year with a modeled daily high of at least 95 °F.
Full methodology ›Cross-source signals
Combined exposures in this ZIP
More than one environmental exposure stands out in this ZIP. Each is established independently and shown on its own above; they are grouped here for context — not because one causes the other.
This area ranks among the highest 10% of US ZIP codes for both humid-heat days and flood exposure.
See the full flooding, evacuation & humid-heat analysis →
The read
By the composite health measure, Alvin, Texas (ZIP 77511) ranks in the bottom 33% nationally (21,626th) and the top 47% of Texas (887th).
Several measures weigh most on this area's profile, and they come first: modeled industrial-pollution burden lies in the top 1.9% nationally, and uninsured lands in the top 4.6% nationally. Outer-floodplain exposure sits in the top 3.1% nationally, and modeled expected annual loss is in the top 4.3% nationally. Modeled humid heat settles in the top 4.8% nationally, modeled short sleep resides in the top 8.3% nationally, and floodplain exposure registers in the top 9.0% nationally. Modeled disaster risk rests in the top 9.6% nationally. On the better side, modeled radon stands in the bottom 1.6% nationally. Distance to a community health center lies at the national minimum, shared with about 23% of ZIPs.
Read against the ZIPs closest to it, outer-floodplain exposure runs far lower than the surrounding ZIPs on this measure. To spell things out, industrial-pollution burden is the EPA's modeled screening score weighting industrial chemical releases by their toxicity and how many people live nearby. Expected annual loss is FEMA's modeled estimate, in dollars, of average yearly harm to people from natural hazards. Radon is a radioactive soil gas the EPA identifies as the top cause of lung cancer in nonsmokers. Close by, ZIP 77510, just across the boundary, ranks 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 Houston-Pasadena-The Woodlands, TX 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 67%
21%
Healthcare Access
healthier than 81%
5%
About typical
Social Need / SDOH
healthier than 50%
16%
Mental Health
healthier than 45%
8%
Disability
healthier than 44%
7%
Holding it back
Environmental Hazard
healthier than 28%
14%
Preventive Care
healthier than 8%
13%
Risk Behavior
healthier than 18%
11%
Climate / Disaster Risk
healthier than 7%
5%
Lifting this score
Healthcare Access
healthier than 79%
5%
About typical
Chronic Disease Burden
healthier than 55%
21%
Social Need / SDOH
healthier than 46%
16%
Mental Health
healthier than 43%
8%
Disability
healthier than 54%
7%
Holding it back
Environmental Hazard
healthier than 18%
14%
Preventive Care
healthier than 31%
13%
Risk Behavior
healthier than 28%
11%
Climate / Disaster Risk
healthier than 36%
5%
Lifting this score
Healthcare Access
healthier than 68%
5%
About typical
Environmental Hazard
healthier than 48%
14%
Preventive Care
healthier than 43%
13%
Disability
healthier than 47%
7%
Holding it back
Chronic Disease Burden
healthier than 38%
21%
Social Need / SDOH
healthier than 33%
16%
Risk Behavior
healthier than 35%
11%
Mental Health
healthier than 27%
8%
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
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 77.0 ± 1.2 years. A median household income of $74,939 predicts 78.9 years — 2.0 years below.
Ranked #2,624 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
77510
Texasshares a border
Score 51.08
Closest healthier
77517
Texasshares a border
Score 47.05
Similar health profile
77302
Texas99% similar profile
Score 46.37
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% | 22.2–26.7 |
| High blood pressure among adults | 36.0% | 33.1–39.0 |
| Cancer (non-skin) or melanoma among adults | 7.2% | 6.6–7.9 |
| Current asthma among adults | 9.9% | 8.9–11.0 |
| Coronary heart disease among adults | 6.4% | 5.8–7.0 |
| Chronic obstructive pulmonary disease among adults | 7.0% | 6.3–7.6 |
| Depression among adults | 22.5% | 19.9–25.4 |
| Diagnosed diabetes among adults | 13.0% | 11.7–14.6 |
| High cholesterol among adults who have ever been screened | 36.2% | 33.1–39.3 |
| Obesity among adults | 37.8% | 33.3–42.5 |
| Stroke among adults | 3.5% | 3.2–3.7 |
| All teeth lost among adults aged >=65 years | 13.9% | 11.6–16.3 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 19.9% | 18.0–22.0 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 75.8% | 73.3–78.2 |
| Visits to doctor for routine checkup within the past year among adults | 74.8% | 71.8–77.7 |
| Cholesterol screening among adults | 84.7% | 83.0–86.2 |
| Colorectal cancer screening among adults aged 45–75 years | 58.5% | 54.4–62.2 |
| Visited dentist or dental clinic in the past year among adults | 53.0% | 49.9–55.9 |
| Mammography use among women aged 50-74 years | 69.3% | 62.7–74.9 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 17.2% | 14.8–19.9 |
| Current cigarette smoking among adults | 14.1% | 12.5–15.8 |
| No leisure-time physical activity among adults | 29.0% | 25.9–32.5 |
| Short sleep duration among adults | 42.3% | 38.3–46.2 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 23.6% | 21.4–26.0 |
| Frequent mental distress among adults | 17.8% | 16.1–19.6 |
| Frequent physical distress among adults | 14.4% | 13.0–16.0 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 16.1% | 14.6–17.7 |
| Any disability among adults | 32.4% | 29.4–35.8 |
| Hearing disability among adults | 7.1% | 6.4–7.9 |
| Independent living disability among adults | 9.0% | 8.2–9.9 |
| Mobility disability among adults | 15.1% | 13.6–16.7 |
| Self-care disability among adults | 4.3% | 3.9–4.6 |
| Vision disability among adults | 6.1% | 5.7–6.6 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | TX median (p10–p90) |
|---|---|---|---|
| Poverty rate | 9.6% | 10.6% (3.1–25.8%) n=32,364 | 12.4% (3.5–26.4%) n=1,869 |
| Uninsured 18–64 | 26.9% | 9.0% (1.5–24.3%) n=32,286 | 22.3% (8.2–41.5%) n=1,862 |
| No HS diploma (25+) | 17.1% | 7.9% (1.8–20.7%) n=32,505 | 12.2% (2.5–30.0%) n=1,881 |
| Bachelor's or higher (25+) | 20.9% | 23.3% (9.2–53.6%) n=32,505 | 21.9% (9.0–51.4%) n=1,881 |
| Unemployment rate (16+) | 4.5% | 3.9% (0.0–9.8%) n=32,274 | 4.2% (0.0–9.4%) n=1,865 |
| Households without a vehicle | 4.7% | 3.9% (0.0–12.5%) n=32,322 | 3.7% (0.0–10.8%) n=1,868 |
| Broadband subscription | 91.2% | 89.3% (75.1–97.1%) n=32,322 | 89.2% (75.0–97.3%) n=1,868 |
| Housing cost burden (≥30% income) | 32.2% | 23.7% (10.6–40.0%) n=32,322 | 26.2% (8.8–40.3%) n=1,868 |
| Homeownership rate | 71.3% | 78.7% (51.7–94.0%) n=32,322 | 75.0% (46.4–92.3%) n=1,868 |
| Crowded housing (>1 per room) | 5.2% | 1.3% (0.0–6.3%) n=32,322 | 3.1% (0.0–9.0%) n=1,868 |
| Foreign-born population | 13.5% | 2.6% (0.0–18.6%) n=32,553 | 8.1% (0.1–26.4%) n=1,886 |
| Single-parent households | 42.9% | 53.6% (37.3–74.1%) n=32,087 | 48.5% (34.3–70.6%) n=1,861 |
| Population 65+ | 14.5% | 19.4% (10.8–33.6%) n=32,553 | 16.1% (8.6–30.1%) n=1,886 |
| Median age | 34.2 yr | 42.2 yr (33.0–56.3) n=32,292 | 38.3 yr (30.9–52.3) n=1,866 |
| Median household income | $74,939 | $72,070 ($46,039–$118,707) n=30,318 | $69,983 ($46,006–$112,413) n=1,737 |
| Median home value | $235,700 | $222,200 ($100,300–$579,820) n=30,049 | $210,500 ($97,060–$429,760) n=1,693 |
| Median gross rent | $1,271 | $1,021 ($677–$1,912) n=25,670 | $1,154 ($764–$1,815) n=1,508 |
Life expectancyNCHS / RWJF USALEEP · model-based
| Measure | Value | US median (p10–p90) | TX median (p10–p90) |
|---|---|---|---|
| Life expectancy at birth | 76.9 yr ± 0.61 | 78.9 yr (74.7–82.8) n=31,308 | 78.2 yr (75.1–81.7) n=1,772 |
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 0.61 years of 76.9, 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