Ogle County, IL

ZIP 61015

In ZIP 61015, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Knolls Edge Subdivision meets every EPA legal limit; 8 contaminants are above health goals, led by lead at 122× California’s Public Health Goal.
• Nearest Superfund site: Byron Salvage Yard, 3.4 miles away.
• Largest share of modeled toxic air from industry: Swenson Spreader LLC (84%), mostly chromium.
• Fine particles (PM2.5) average 7.1 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 422,744 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 61015

• Superfund sites nearbyC to D
• Factories and industrial sitesC to D
• Oil and gas wellsA
• Parks and nature nearbyD
• Air qualityB
• Drinking water qualityC to F
• Pesticide useF
• Neighborhood health statusC to D
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA
• Radiation signalsD

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

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