Okmulgee County, OK

ZIP 74447

In ZIP 74447, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Dewar meets every EPA legal limit; 8 contaminants are above health goals, led by bromodichloromethane at 197× California’s Public Health Goal.
• Nearest Superfund site: Henryetta Iron and Metal, 3.9 miles away.
• Largest share of modeled toxic air from industry: Webco Industries Inc Kellyville Specialty Tube (62%), mostly chromium.
• Fine particles (PM2.5) average 7.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 43,254 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 74447

• Superfund sites nearbyA to F
• Factories and industrial sitesA to B
• Oil and gas wellsF
• Parks and nature nearbyC to D
• Air qualityB
• Drinking water qualityC
• Pesticide useD to F
• Neighborhood health statusF
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to C
• Radiation signalsB to C

Based on 8 census tracts · compiled October 25, 2026 · how each grade works and its sources

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