ZIP code
77650
in Port Bolivar, TexasPopulation 2,322
43.58/ 100
Ranked #23,822 of 32,066 US ZIPs (bottom 26%)
Ranked #1,133 of 1,868 Texas ZIPs (bottom 39%)
Ranked #160 of 237 Houston-Pasadena-The Woodlands, TX ZIPs (bottom 32%)
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
95.2%
in the top 0.5% nationally
Lower is healthier
ST99thUS99thDefinition & 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 ›Crowded housing
10.3%
in the top 4.4% nationally
Lower is healthier
ST93rdUS96thDefinition & source ›
The share of occupied homes with more than one person per room, the Census definition of crowded housing.
Full methodology ›Fatal road crashes
43.1 per 100,000 residents per year
in the top 5.8% nationally
Lower is healthier
ST89thUS94thDefinition & source ›
The annual rate of fatal road crashes per 100,000 residents, pooled over a ten-year window.
A rate per resident population. Where a ZIP has too few residents for the rate to be reliable — about 30% of US ZIPs — no value is published rather than an unstable one; those ZIPs are absent from this comparison, not counted as crash-free.
Full methodology ›High blood pressure
47.8%
in the top 6.3% nationally
Lower is healthier
ST97thUS94thDefinition & source ›
The estimated share of adults who have been told by a health professional that they have high blood pressure.
Full methodology ›High cholesterol
45%
in the top 4.4% nationally
Lower is healthier
ST97thUS96thDefinition & source ›
The estimated share of adults with high cholesterol, among those who have ever been screened for it.
Full methodology ›Homeownership rate
96%
in the top 7.4% nationally
Higher is healthier
ST93rdUS93rdDefinition & source ›
The share of occupied homes that are owned, rather than rented, by the people living in them.
Full methodology ›Industrial-pollution burden
in the top 7.5% nationally
Lower is healthier
ST86thUS93rdDefinition & 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 ›Humid extreme heat
138.2 days/year
in the top 7.8% nationally
Lower is healthier
ST59thUS92ndDefinition & 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 ›Coronary heart disease
10.0%
in the top 9.7% nationally
Lower is healthier
ST93rdUS90thDefinition & source ›
The estimated share of adults who have been told by a health professional that they have coronary heart disease or angina.
Full methodology ›Radon
0.8 pCi/L
in the bottom 6.0% nationally
Lower is healthier
ST35thUS6thDefinition & 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 ›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
Port Bolivar, Texas (ZIP 77650), overall, ranks in the bottom 26% nationally (23,822nd) and the bottom 39% of Texas (1,133rd).
Taken together, the data gives a genuinely mixed reading: unemployment registers at the national minimum, shared with about 15% of ZIPs. Homeownership resides in the top 7.4% nationally. Households without a vehicle settles at the national minimum, shared with about 16% of ZIPs. On the other side, floodplain exposure is in the top 0.5% nationally, and crowded housing sits in the top 4.4% nationally. Fatal road crashes lands in the top 5.8% nationally, and modeled high blood pressure lies in the top 6.3% nationally. Modeled high cholesterol stands in the top 4.4% nationally, and industrial-pollution burden rests in the top 7.5% nationally. Modeled humid heat registers in the top 7.8% nationally.
Measured against the nearby ZIPs, industrial-pollution burden runs far lower than the surrounding ZIPs on this measure. Defined simply, industrial-pollution burden is the EPA's modeled screening score weighting industrial chemical releases by their toxicity and how many people live nearby. Floodplain exposure is land with about a 1-in-100 chance of flooding each year, nicknamed the "100-year floodplain". Humid heat is a modeled heat-stress measure combining temperature, humidity, sun, and wind to gauge heat on the body outdoors. ZIP 77554, about 0.8 miles away, comes out 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
Environmental Hazard
healthier than 85%
14%
About typical
Preventive Care
healthier than 59%
13%
Risk Behavior
healthier than 46%
11%
Mental Health
healthier than 59%
8%
Holding it back
Chronic Disease Burden
healthier than 12%
21%
Social Need / SDOH
healthier than 39%
16%
Disability
healthier than 25%
7%
Climate / Disaster Risk
healthier than 2%
5%
Healthcare Access
healthier than 36%
5%
Lifting this score
Environmental Hazard
healthier than 74%
14%
Preventive Care
healthier than 93%
13%
Risk Behavior
healthier than 65%
11%
Mental Health
healthier than 64%
8%
Holding it back
Chronic Disease Burden
healthier than 4%
21%
Social Need / SDOH
healthier than 32%
16%
Disability
healthier than 31%
7%
Climate / Disaster Risk
healthier than 8%
5%
Healthcare Access
healthier than 35%
5%
Lifting this score
Environmental Hazard
healthier than 95%
14%
Preventive Care
healthier than 94%
13%
Risk Behavior
healthier than 64%
11%
About typical
Mental Health
healthier than 45%
8%
Holding it back
Chronic Disease Burden
healthier than 3%
21%
Social Need / SDOH
healthier than 24%
16%
Disability
healthier than 27%
7%
Climate / Disaster Risk
healthier than 14%
5%
Healthcare Access
healthier than 12%
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 84.5; chronic-disease standing 12.5 — 72 points apart, cleaner on the environment than it is on chronic illness.
Ranked #954 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
77617
Texasshares a border
Score 41.53
Closest healthier
77554
Texasabout 0.8 mi away
Score 57.45
Similar health profile
32666
Florida99% similar profile
Score 45.45
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 | 36.9% | 32.6–41.0 |
| High blood pressure among adults | 47.8% | 42.9–52.6 |
| Cancer (non-skin) or melanoma among adults | 11.9% | 10.6–13.1 |
| Current asthma among adults | 10.4% | 9.1–11.7 |
| Coronary heart disease among adults | 10.0% | 8.7–11.4 |
| Chronic obstructive pulmonary disease among adults | 10.8% | 9.0–12.8 |
| Depression among adults | 22.8% | 19.2–26.5 |
| Diagnosed diabetes among adults | 17.3% | 14.7–19.9 |
| High cholesterol among adults who have ever been screened | 45.0% | 40.2–49.8 |
| Obesity among adults | 36.3% | 28.6–44.4 |
| Stroke among adults | 5.1% | 4.5–5.8 |
| All teeth lost among adults aged >=65 years | 11.6% | 9.2–14.4 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 12.1% | 9.9–14.7 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 83.6% | 80.7–86.2 |
| Visits to doctor for routine checkup within the past year among adults | 79.9% | 76.7–83.0 |
| Cholesterol screening among adults | 90.6% | 89.2–91.8 |
| Colorectal cancer screening among adults aged 45–75 years | 67.4% | 62.4–71.9 |
| Visited dentist or dental clinic in the past year among adults | 55.6% | 51.8–59.3 |
| Mammography use among women aged 50-74 years | 73.3% | 65.4–79.8 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 14.3% | 11.8–17.1 |
| Current cigarette smoking among adults | 16.1% | 12.9–19.3 |
| No leisure-time physical activity among adults | 29.9% | 24.4–35.5 |
| Short sleep duration among adults | 36.4% | 31.6–41.3 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 24.1% | 20.2–28.0 |
| Frequent mental distress among adults | 16.0% | 13.9–18.2 |
| Frequent physical distress among adults | 17.1% | 14.6–19.6 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 14.1% | 12.0–16.4 |
| Any disability among adults | 36.6% | 31.3–41.9 |
| Hearing disability among adults | 10.4% | 9.0–11.8 |
| Independent living disability among adults | 9.4% | 8.0–10.9 |
| Mobility disability among adults | 20.7% | 17.5–24.2 |
| Self-care disability among adults | 5.2% | 4.4–6.0 |
| Vision disability among adults | 6.2% | 5.3–7.1 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | TX median (p10–p90) |
|---|---|---|---|
| Poverty rate | 13.7% | 10.6% (3.1–25.8%) n=32,364 | 12.4% (3.5–26.4%) n=1,869 |
| Uninsured 18–64 | 15.1% | 9.0% (1.5–24.3%) n=32,286 | 22.3% (8.2–41.5%) n=1,862 |
| No HS diploma (25+) | 1.4% | 7.9% (1.8–20.7%) n=32,505 | 12.2% (2.5–30.0%) n=1,881 |
| Bachelor's or higher (25+) | 12.4% | 23.3% (9.2–53.6%) n=32,505 | 21.9% (9.0–51.4%) n=1,881 |
| Unemployment rate (16+) | 0.0% | 3.9% (0.0–9.8%) n=32,274 | 4.2% (0.0–9.4%) n=1,865 |
| Households without a vehicle | 0.0% | 3.9% (0.0–12.5%) n=32,322 | 3.7% (0.0–10.8%) n=1,868 |
| Broadband subscription | 89.7% | 89.3% (75.1–97.1%) n=32,322 | 89.2% (75.0–97.3%) n=1,868 |
| Housing cost burden (≥30% income) | 24.8% | 23.7% (10.6–40.0%) n=32,322 | 26.2% (8.8–40.3%) n=1,868 |
| Homeownership rate | 96.0% | 78.7% (51.7–94.0%) n=32,322 | 75.0% (46.4–92.3%) n=1,868 |
| Crowded housing (>1 per room) | 10.3% | 1.3% (0.0–6.3%) n=32,322 | 3.1% (0.0–9.0%) n=1,868 |
| Foreign-born population | 5.9% | 2.6% (0.0–18.6%) n=32,553 | 8.1% (0.1–26.4%) n=1,886 |
| Single-parent households | 84.4% | 53.6% (37.3–74.1%) n=32,087 | 48.5% (34.3–70.6%) n=1,861 |
| Population 65+ | 40.7% | 19.4% (10.8–33.6%) n=32,553 | 16.1% (8.6–30.1%) n=1,886 |
| Median age | 62.9 yr | 42.2 yr (33.0–56.3) n=32,292 | 38.3 yr (30.9–52.3) n=1,866 |
| Median household income | $61,745 | $72,070 ($46,039–$118,707) n=30,318 | $69,983 ($46,006–$112,413) n=1,737 |
| Median home value | $351,600 | $222,200 ($100,300–$579,820) n=30,049 | $210,500 ($97,060–$429,760) n=1,693 |
| Median gross rent | — | $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 | 80.9 yr ± 1.45 | 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 1.45 years of 80.9, 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