Oklahoma County, OK

ZIP 73111

In ZIP 73111, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Oklahoma City meets every EPA legal limit; 12 contaminants are above health goals, led by lithium at 4.2× the USGS health-based screening level.
• Nearest Superfund site: Double Eagle Refinery Co., 1.4 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Smico Manufacturing Co Inc. (39%), mostly chromium.
• Fine particles (PM2.5) average 8.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 20,693 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 73111

• Superfund sites nearbyC to D
• Factories and industrial sitesB to C
• Oil and gas wellsD
• Parks and nature nearbyB to C
• Air qualityC to F
• Drinking water qualityC
• Pesticide useA to C
• Neighborhood health statusF
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsB

Based on 7 census tracts · compiled October 25, 2026 · how each grade works and its sources

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