Garfield County, OK

ZIP 73773

In ZIP 73773, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Covington meets every EPA legal limit; 6 contaminants are above health goals, led by dibromochloromethane at 65× California’s Public Health Goal.
• Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Koch Fertilizer Enid LLC (40%), mostly formaldehyde.
• Fine particles (PM2.5) average 6.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 112,629 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 73773

• Superfund sites nearbyA
• Factories and industrial sitesC
• Oil and gas wellsF
• Parks and nature nearbyC to D
• Air qualityB
• Drinking water qualityB to C
• Pesticide useF
• Neighborhood health statusD to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to B
• Radiation signalsC to D

Based on 2 census tracts · compiled October 25, 2026 · how each grade works and its sources

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