LaSalle County, IL

ZIP 61371

In ZIP 61371, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Peru meets every EPA legal limit; 10 contaminants are above health goals, led by lithium at 6.8× the USGS health-based screening level.
• Nearest Superfund site: Lasalle Electric Utilities, 4.3 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Eakas Corp (28%), mostly manganese compounds.
• Fine particles (PM2.5) average 7.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 606,730 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 61371

• Superfund sites nearbyA to F
• Factories and industrial sitesB to C
• Oil and gas wellsA to D
• Parks and nature nearbyB to F
• Air qualityB to C
• Drinking water qualityC
• Pesticide useF
• Neighborhood health statusD
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsF

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

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