Galveston County, TX

ZIP 77554

In ZIP 77554, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Galveston County Mud 12 meets every EPA legal limit; 9 contaminants are above health goals, led by lead at 30× California’s Public Health Goal.
• Nearest Superfund site: Motco, Inc., 3.5 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Dixie Chemical Co Inc (30%), mostly ethylene oxide.
• Fine particles (PM2.5) average 8.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 11,820 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 77554

• Superfund sites nearbyA to F
• Factories and industrial sitesB to F
• Oil and gas wellsD to F
• Parks and nature nearbyC to D
• Air qualityB to D
• Drinking water qualityD to F
• Pesticide useB to C
• Neighborhood health statusD to F
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA to D
• Radiation signalsB

Based on 7 census tracts · compiled September 10, 2026 · how each grade works and its sources

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