ZIP code
77879
in Somerville, TexasPopulation 4,611
47.05/ 100
Ranked #20,096 of 32,066 US ZIPs (bottom 37%)
Ranked #768 of 1,868 Texas ZIPs (top 41%)
Ranked #7 of 15 College Station-Bryan, TX ZIPs (top 47%)
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
47.7%
in the top 4.4% nationally
Lower is healthier
ST94thUS96thDefinition & 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 ›Dry extreme heat
80.9 days/year
in the top 4.8% nationally
Lower is healthier
ST51stUS95thDefinition & source ›
The average number of days per year with a modeled daily high of at least 95 °F.
Full methodology ›Humid extreme heat
148.2 days/year
in the top 5.2% nationally
Lower is healthier
ST68thUS95thDefinition & 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 ›PFAS in drinking water
8.4%
in the bottom 5.6% nationally
Lower is healthier
ST7thUS6thDefinition & 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 ›Fatal road crashes
43.4 per 100,000 residents per year
in the top 5.7% 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 ›Civic-institution access
0.6 per 1,000 residents
in the top 9.8% nationally
Higher is healthier
ST93rdUS90thDefinition & source ›
The number of civic and social organizations inside this ZIP’s boundary, per 1,000 residents.
Counted from establishments located inside this ZIP’s boundary, so one just across the line is not counted. Where a ZIP has too few residents for the density to be reliable, no value is published rather than an unreliable one.
Full methodology ›Radon
0.8 pCi/L
in the bottom 6.7% nationally
Lower is healthier
ST39thUS7thDefinition & 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 ›Child-care access
0.4 per 1,000 residents
in the top 16% nationally
Higher is healthier
ST90thUS84thDefinition & source ›
The number of child day-care services inside this ZIP’s boundary, per 1,000 residents.
Counted from establishments located inside this ZIP’s boundary, so one just across the line is not counted. Where a ZIP has too few residents for the density to be reliable, no value is published rather than an unreliable one.
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
Somerville, Texas (ZIP 77879), in overall standing, comes out in the bottom 37% nationally (20,096th) and the top 41% of Texas (768th).
A few readings each way define this mixed profile: modeled pfas resides in the bottom 5.6% nationally, civic sits in the top 9.8% nationally, and modeled radon stands in the bottom 6.7% nationally. Childcare resides in the top 16% nationally. Pulling the other way, floodplain exposure sits in the top 4.4% nationally, and modeled extreme heat stands in the top 4.8% nationally. Modeled humid heat resides in the top 5.2% nationally, and fatal road crashes sits in the top 5.7% nationally. Distance to a hazardous-chemical facility stands at the national minimum, shared with about 31% of ZIPs. Modeled loud transportation noise resides in the top 17% nationally.
Defined simply, for reference, 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. Radon is a radioactive soil gas the EPA identifies as the top cause of lung cancer in nonsmokers. Distance to a hazardous-chemical facility is a plant handling large amounts of hazardous chemicals that must file an EPA risk-management plan for accidental releases. The closest healthier ZIP overall is ZIP 77833, 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 College Station-Bryan, 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 64%
16%
Environmental Hazard
healthier than 67%
14%
Mental Health
healthier than 63%
8%
About typical
Risk Behavior
healthier than 52%
11%
Holding it back
Chronic Disease Burden
healthier than 38%
21%
Preventive Care
healthier than 37%
13%
Disability
healthier than 40%
7%
Climate / Disaster Risk
in the bottom 0.2%
5%
Healthcare Access
healthier than 37%
5%
Lifting this score
Social Need / SDOH
healthier than 63%
16%
Preventive Care
healthier than 83%
13%
Risk Behavior
healthier than 71%
11%
Mental Health
healthier than 68%
8%
About typical
Environmental Hazard
healthier than 47%
14%
Disability
healthier than 50%
7%
Holding it back
Chronic Disease Burden
healthier than 24%
21%
Climate / Disaster Risk
healthier than 1%
5%
Healthcare Access
healthier than 35%
5%
Lifting this score
Social Need / SDOH
healthier than 69%
16%
Preventive Care
healthier than 85%
13%
Risk Behavior
healthier than 69%
11%
Mental Health
healthier than 85%
8%
Disability
healthier than 62%
7%
Holding it back
Chronic Disease Burden
healthier than 31%
21%
Environmental Hazard
healthier than 31%
14%
Climate / Disaster Risk
healthier than 15%
5%
Healthcare Access
healthier than 15%
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
77833
Texasshares a border
Score 50.12
Closest healthier
77835
Texasshares a border
Score 54.96
Similar health profile
77443
Texas99% similar profile
Score 48.33
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 | 30.2% | 26.3–34.6 |
| High blood pressure among adults | 41.8% | 36.7–47.5 |
| Cancer (non-skin) or melanoma among adults | 9.5% | 8.5–10.6 |
| Current asthma among adults | 10.4% | 9.0–12.0 |
| Coronary heart disease among adults | 7.9% | 7.0–8.9 |
| Chronic obstructive pulmonary disease among adults | 8.3% | 7.2–9.4 |
| Depression among adults | 21.9% | 18.2–26.3 |
| Diagnosed diabetes among adults | 14.9% | 12.7–17.3 |
| High cholesterol among adults who have ever been screened | 41.1% | 35.8–46.8 |
| Obesity among adults | 36.2% | 27.2–46.9 |
| Stroke among adults | 4.2% | 3.8–4.7 |
| All teeth lost among adults aged >=65 years | 12.4% | 10.1–15.0 |
PreventionCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Current lack of health insurance among adults aged 18-64 years | 14.2% | 12.0–16.6 |
| Taking medicine to control high blood pressure among adults with high blood pressure | 80.4% | 76.8–83.4 |
| Visits to doctor for routine checkup within the past year among adults | 77.7% | 73.3–81.6 |
| Cholesterol screening among adults | 88.6% | 86.9–90.1 |
| Colorectal cancer screening among adults aged 45–75 years | 64.4% | 59.3–69.5 |
| Visited dentist or dental clinic in the past year among adults | 55.4% | 51.7–59.1 |
| Mammography use among women aged 50-74 years | 74.7% | 66.8–81.8 |
Health Risk BehaviorsCDC PLACES 2022 / 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Binge drinking among adults | 14.9% | 11.8–18.6 |
| Current cigarette smoking among adults | 14.2% | 11.9–16.7 |
| No leisure-time physical activity among adults | 28.5% | 23.4–34.2 |
| Short sleep duration among adults | 36.8% | 29.8–44.1 |
Health StatusCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Fair or poor self-rated health status among adults | 22.6% | 19.3–26.0 |
| Frequent mental distress among adults | 16.2% | 14.1–18.5 |
| Frequent physical distress among adults | 15.0% | 13.0–17.2 |
DisabilityCDC PLACES 2023 · BRFSS
| Measure | Crude prevalence | 95% CI |
|---|---|---|
| Cognitive disability among adults | 14.4% | 12.5–16.3 |
| Any disability among adults | 33.9% | 28.9–39.3 |
| Hearing disability among adults | 8.4% | 7.3–9.5 |
| Independent living disability among adults | 8.8% | 7.7–9.9 |
| Mobility disability among adults | 17.5% | 14.9–20.2 |
| Self-care disability among adults | 4.5% | 4.0–5.0 |
| Vision disability among adults | 5.8% | 5.2–6.4 |
Community & economyCensus ACS 5-Year · 2024 release · observed
| Measure | Value | US median (p10–p90) | TX median (p10–p90) |
|---|---|---|---|
| Poverty rate | 12.9% | 10.6% (3.1–25.8%) n=32,364 | 12.4% (3.5–26.4%) n=1,869 |
| Uninsured 18–64 | 20.7% | 9.0% (1.5–24.3%) n=32,286 | 22.3% (8.2–41.5%) n=1,862 |
| No HS diploma (25+) | 14.9% | 7.9% (1.8–20.7%) n=32,505 | 12.2% (2.5–30.0%) n=1,881 |
| Bachelor's or higher (25+) | 26.0% | 23.3% (9.2–53.6%) n=32,505 | 21.9% (9.0–51.4%) n=1,881 |
| Unemployment rate (16+) | 7.3% | 3.9% (0.0–9.8%) n=32,274 | 4.2% (0.0–9.4%) n=1,865 |
| Households without a vehicle | 4.8% | 3.9% (0.0–12.5%) n=32,322 | 3.7% (0.0–10.8%) n=1,868 |
| Broadband subscription | 80.8% | 89.3% (75.1–97.1%) n=32,322 | 89.2% (75.0–97.3%) n=1,868 |
| Housing cost burden (≥30% income) | 19.5% | 23.7% (10.6–40.0%) n=32,322 | 26.2% (8.8–40.3%) n=1,868 |
| Homeownership rate | 81.3% | 78.7% (51.7–94.0%) n=32,322 | 75.0% (46.4–92.3%) n=1,868 |
| Crowded housing (>1 per room) | 3.7% | 1.3% (0.0–6.3%) n=32,322 | 3.1% (0.0–9.0%) n=1,868 |
| Foreign-born population | 8.3% | 2.6% (0.0–18.6%) n=32,553 | 8.1% (0.1–26.4%) n=1,886 |
| Single-parent households | 63.3% | 53.6% (37.3–74.1%) n=32,087 | 48.5% (34.3–70.6%) n=1,861 |
| Population 65+ | 27.6% | 19.4% (10.8–33.6%) n=32,553 | 16.1% (8.6–30.1%) n=1,886 |
| Median age | 50.2 yr | 42.2 yr (33.0–56.3) n=32,292 | 38.3 yr (30.9–52.3) n=1,866 |
| Median household income | $65,490 | $72,070 ($46,039–$118,707) n=30,318 | $69,983 ($46,006–$112,413) n=1,737 |
| Median home value | $153,900 | $222,200 ($100,300–$579,820) n=30,049 | $210,500 ($97,060–$429,760) n=1,693 |
| Median gross rent | $1,577 | $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 | 78.5 yr ± 0.87 | 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 0.87 years of 78.5, 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