Oklahoma County, OK

ZIP 73103

In ZIP 73103, 4 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., 2.7 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Smico Manufacturing Co Inc. (62%), mostly chromium.
• Fine particles (PM2.5) average 9.4 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 73103

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

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

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