Gregg County, TX

ZIP 75603

In ZIP 75603, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Cross Roads Sud Greenwood Ranch Me meets every EPA legal limit; 8 contaminants are above health goals, led by bromodichloromethane at 195× California’s Public Health Goal.
• Nearest Superfund site: Garland Creosoting, 4.3 miles away.
• Largest share of modeled toxic air from industry: Eastman Chemical Co Texas Operations (90%), mostly ethylene oxide.
• Fine particles (PM2.5) average 7.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 22,883 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 75603

• Superfund sites nearbyC to D
• Factories and industrial sitesD to F
• Oil and gas wellsD to F
• Parks and nature nearbyC to D
• Air qualityC
• Drinking water qualityC
• Pesticide useB to D
• Neighborhood health statusD to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to F
• Radiation signalsA to B

Based on 6 census tracts · compiled October 25, 2026 · how each grade works and its sources

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