Winnebago County, IL

ZIP 61114

In ZIP 61114, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Rockford has 1 contaminant at or over an EPA legal limit; 21 contaminants are above health goals, led by lead at 45× California’s Public Health Goal.
• Nearest Superfund site: Southeast Rockford Ground Water Contamination, 4.3 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Arnold Magnetic Technologies - Arnold Engineering (22%), mostly chromium.
• Fine particles (PM2.5) average 7.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 190,217 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 61114

• Superfund sites nearbyD to F
• Factories and industrial sitesD
• Oil and gas wellsC
• Parks and nature nearbyD to F
• Air qualityC
• Drinking water qualityD to F
• Pesticide useD to F
• Neighborhood health statusB to D
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsD to F

Based on 8 census tracts · compiled September 10, 2026 · how each grade works and its sources

Loading the full report, with every source…