Tulsa County, OK

ZIP 74171

In ZIP 74171, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Tulsa meets every EPA legal limit; 11 contaminants are above health goals, led by bromodichloromethane at 183× California’s Public Health Goal.
• Nearest Superfund site: Compass Industries (avery Drive), 9.1 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Sterling Specialty Chemicals LLC (63%), mostly ethylene oxide.
• Fine particles (PM2.5) average 9.1 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 25,439 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 74171

• Superfund sites nearbyA
• Factories and industrial sitesD
• Oil and gas wellsF
• Parks and nature nearbyD
• Air qualityF
• Drinking water qualityC
• Pesticide useB
• Neighborhood health statusA
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA
• Radiation signalsB

Based on 1 census tract · compiled October 25, 2026 · how each grade works and its sources

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