Martin County, TX

ZIP 79705

In ZIP 79705, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Greenwood Terrace M H Subdivision has 1 contaminant at or over an EPA legal limit; 9 contaminants are above health goals, led by arsenic at 1,883× California’s Public Health Goal.
• Nearest Superfund site: West County Road 112 Ground Water, 3.2 miles away.
• Largest share of modeled toxic air from industry: Novastar LP (84%), mostly benzyl chloride.
• Fine particles (PM2.5) average 7.2 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 40,725 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 79705

• Superfund sites nearbyA to D
• Factories and industrial sitesB to D
• Oil and gas wellsD
• Parks and nature nearbyB to C
• Air qualityA to C
• Drinking water qualityC to D
• Pesticide useC to F
• Neighborhood health statusA to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to C
• Radiation signalsA to B

Based on 14 census tracts · compiled October 25, 2026 · how each grade works and its sources

Loading the full report, with every source…