Dallas County, TX

ZIP 75204

In ZIP 75204, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Town Of Highland Park meets every EPA legal limit; 9 contaminants are above health goals, led by lead at 58× California’s Public Health Goal.
• Nearest Superfund site: Rsr Corporation, 5.8 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Steris Isomedix Services (21%), mostly ethylene oxide.
• Fine particles (PM2.5) average 9.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 19,079 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 75204

• Superfund sites nearbyD
• Factories and industrial sitesC to D
• Oil and gas wellsA to B
• Parks and nature nearbyD to F
• Air qualityF
• Drinking water qualityF
• Pesticide useB to C
• Neighborhood health statusA to B
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsC

Based on 15 census tracts · compiled September 10, 2026 · how each grade works and its sources

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