Lincoln County, OK

ZIP 74824

In ZIP 74824, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Tryon meets every EPA legal limit; 7 contaminants are above health goals, led by lead at 6,088× California’s Public Health Goal.
• Nearest Superfund site: Hudson Refinery, 4.3 miles away.
• Largest share of modeled toxic air from industry: Webco Industries Inc. Mannford Specialty Tube (65%), mostly chromium.
• Fine particles (PM2.5) average 6.9 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 33,481 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 74824

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

Based on 3 census tracts · compiled September 10, 2026 · how each grade works and its sources

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