ZIP code
78155
in Seguin, TexasPopulation 55,600
45.84/ 100
Ranked #21,510 of 32,066 US ZIPs (bottom 33%)
Ranked #875 of 1,868 Texas ZIPs (top 47%)
Ranked #82 of 117 San Antonio-New Braunfels, TX ZIPs (bottom 30%)
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.
Uninsured (under 65)
21.3%
in the top 3.7% nationally
Lower is healthier
ST72ndUS96thDefinition & source ›
The estimated share of adults aged 18–64 with no current health-insurance coverage.
Full methodology ›Dry extreme heat
94.5 days/year
in the top 1.8% nationally
Lower is healthier
ST90thUS98thDefinition & source ›
The average number of days per year with a modeled daily high of at least 95 °F.
Full methodology ›Humid extreme heat
150.9 days/year
in the top 4.5% nationally
Lower is healthier
ST73rdUS96thDefinition & 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 ›Expected annual disaster loss
$0
in the top 5.5% nationally
Lower is healthier
ST89thUS95thDefinition & 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 ›Subsidized affordable housing
308 units
in the top 8.0% nationally
Higher is healthier
ST86thUS92ndDefinition & source ›
The number of affordable rental units in this ZIP supported by the federal Low-Income Housing Tax Credit program.
Full methodology ›Radon
0.8 pCi/L
in the bottom 8.1% nationally
Lower is healthier
ST45thUS8thDefinition & 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 ›The read
Judged by its overall standing, Seguin, Texas (ZIP 78155) sits in the bottom 33% nationally (21,510th) and the top 47% of Texas (875th).
A demanding profile, and several measures drive it: modeled uninsured is in the top 3.7% nationally, extreme heat lies in the top 1.8% nationally, and humid heat registers in the top 4.5% nationally. Modeled expected annual loss is in the top 5.5% nationally, crowded housing lies in the top 11.0% nationally, and modeled disaster risk registers in the top 12.5% nationally. Outer-floodplain exposure is in the top 12.5% nationally. On the stronger side, distance to an emergency room lies at the national minimum, shared with about 11% of ZIPs. Subsidized affordable housing registers in the top 8.0% nationally. Distance to a community health center is at the national minimum, shared with about 23% of ZIPs.
Placed beside its immediate neighbors, expected annual loss runs far higher than the surrounding ZIPs on this measure. Put plainly, expected annual loss is FEMA's modeled estimate, in dollars, of average yearly harm to people from natural hazards. Disaster risk is the area's national rank on its highest non-flood peril in FEMA's modeled Risk Index, like wildfire or quake. Extreme heat is a modeled count of days a year reaching a dangerously high temperature, a leading weather hazard. A healthier nearby ZIP overall is ZIP 78121, 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 San Antonio-New Braunfels, TX metro area.
Compared with the ZIP codes measured across all nine scoring domains — not with all US ZIP codes.
Lifting this score
Social Need / SDOH
healthier than 68%
16%
Healthcare Access
in the top 0.00%
5%
About typical
Chronic Disease Burden
healthier than 55%
21%
Environmental Hazard
healthier than 59%
14%
Mental Health
healthier than 47%
8%
Holding it back
Preventive Care
healthier than 10%
13%
Risk Behavior
healthier than 25%
11%
Disability
healthier than 30%
7%
Climate / Disaster Risk
healthier than 7%
5%
Lifting this score
Social Need / SDOH
healthier than 68%
16%
Healthcare Access
in the top 0.00%
5%
About typical
Chronic Disease Burden
healthier than 42%
21%
Mental Health
healthier than 47%
8%
Holding it back
Environmental Hazard
healthier than 40%
14%
Preventive Care
healthier than 37%
13%
Risk Behavior
healthier than 38%
11%
Disability
healthier than 36%
7%
Climate / Disaster Risk
healthier than 34%
5%
Lifting this score
Healthcare Access
in the top 0.00%
5%
About typical
Social Need / SDOH
healthier than 50%
16%
Preventive Care
healthier than 44%
13%
Holding it back
Chronic Disease Burden
healthier than 27%
21%
Environmental Hazard
healthier than 20%
14%
Risk Behavior
healthier than 37%
11%
Mental Health
healthier than 27%
8%
Disability
healthier than 32%
7%
Climate / Disaster Risk
healthier than 36%
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
78121
Texasshares a border
Score 54.40
Closest healthier
78124
Texasshares a border
Score 50.39
Similar health profile
78118
Texas98% similar profile
Score 40.91
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 | 27.6% | 24.8–30.6 |
| High blood pressure among adults | 37.5% | 34.0–41.3 |
| Cancer (non-skin) or melanoma among adults | 7.4% | 6.7–8.1 |
| Current asthma among adults | 9.8% | 8.7–11.0 |
| Coronary heart disease among adults | 7.2% | 6.5–7.9 |
| Chronic obstructive pulmonary disease among adults | 7.3% | 6.6–8.1 |
| Depression among adults | 22.8% | 19.7–26.2 |
| Diagnosed diabetes among adults | 15.5% | 13.7–17.5 |
| High cholesterol among adults who have ever been screened | 38.0% | 34.3–42.0 |
| Obesity among adults | 36.5% | 30.9–42.6 |
| Stroke among adults | 3.9% | 3.6–4.2 |
| All teeth lost among adults aged >=65 years | 15.5% | 12.8–18.7 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 21.3% | 19.0–23.5 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 77.9% | 75.3–80.5 |
| Visits to doctor for routine checkup within the past year among adults | 75.6% | 72.0–78.9 |
| Cholesterol screening among adults | 84.8% | 83.1–86.4 |
| Colorectal cancer screening among adults aged 45–75 years | 59.8% | 54.7–64.7 |
| Visited dentist or dental clinic in the past year among adults | 52.0% | 48.4–55.7 |
| Mammography use among women aged 50-74 years | 70.7% | 62.7–77.9 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 17.0% | 14.3–20.0 |
| Current cigarette smoking among adults | 14.8% | 13.0–16.8 |
| No leisure-time physical activity among adults | 31.0% | 27.2–35.4 |
| Short sleep duration among adults | 38.1% | 32.5–43.9 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 25.4% | 22.9–28.3 |
| Frequent mental distress among adults | 17.3% | 15.4–19.2 |
| Frequent physical distress among adults | 15.4% | 13.8–17.2 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 16.5% | 14.9–18.3 |
| Any disability among adults | 36.3% | 32.5–40.5 |
| Hearing disability among adults | 8.1% | 7.2–9.0 |
| Independent living disability among adults | 9.4% | 8.5–10.4 |
| Mobility disability among adults | 17.4% | 15.6–19.5 |
| Self-care disability among adults | 4.8% | 4.5–5.2 |
| Vision disability among adults | 7.2% | 6.6–7.8 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | TX median (p10–p90) |
|---|---|---|---|
| Poverty rate | 16.9% | 10.6% (3.1–25.8%) n=32,364 | 12.4% (3.5–26.4%) n=1,869 |
| Uninsured 18–64 | 21.3% | 9.0% (1.5–24.3%) n=32,286 | 22.3% (8.2–41.5%) n=1,862 |
| No HS diploma (25+) | 14.0% | 7.9% (1.8–20.7%) n=32,505 | 12.2% (2.5–30.0%) n=1,881 |
| Bachelor's or higher (25+) | 21.7% | 23.3% (9.2–53.6%) n=32,505 | 21.9% (9.0–51.4%) n=1,881 |
| Unemployment rate (16+) | 3.9% | 3.9% (0.0–9.8%) n=32,274 | 4.2% (0.0–9.4%) n=1,865 |
| Households without a vehicle | 5.6% | 3.9% (0.0–12.5%) n=32,322 | 3.7% (0.0–10.8%) n=1,868 |
| Broadband subscription | 91.0% | 89.3% (75.1–97.1%) n=32,322 | 89.2% (75.0–97.3%) n=1,868 |
| Housing cost burden (≥30% income) | 25.9% | 23.7% (10.6–40.0%) n=32,322 | 26.2% (8.8–40.3%) n=1,868 |
| Homeownership rate | 72.5% | 78.7% (51.7–94.0%) n=32,322 | 75.0% (46.4–92.3%) n=1,868 |
| Crowded housing (>1 per room) | 5.9% | 1.3% (0.0–6.3%) n=32,322 | 3.1% (0.0–9.0%) n=1,868 |
| Foreign-born population | 8.9% | 2.6% (0.0–18.6%) n=32,553 | 8.1% (0.1–26.4%) n=1,886 |
| Single-parent households | 49.4% | 53.6% (37.3–74.1%) n=32,087 | 48.5% (34.3–70.6%) n=1,861 |
| Population 65+ | 17.9% | 19.4% (10.8–33.6%) n=32,553 | 16.1% (8.6–30.1%) n=1,886 |
| Median age | 39.4 yr | 42.2 yr (33.0–56.3) n=32,292 | 38.3 yr (30.9–52.3) n=1,866 |
| Median household income | $71,039 | $72,070 ($46,039–$118,707) n=30,318 | $69,983 ($46,006–$112,413) n=1,737 |
| Median home value | $266,700 | $222,200 ($100,300–$579,820) n=30,049 | $210,500 ($97,060–$429,760) n=1,693 |
| Median gross rent | $1,198 | $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 | 78.1 yr ± 0.48 | 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 0.48 years of 78.1, 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