Lake County, IN

ZIP 46303

In ZIP 46303, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Oakwood Mobile Home Park meets every EPA legal limit; 2 contaminants are above health goals, led by lead at 37× California’s Public Health Goal.
• Closer to Superfund sites than 53% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Tms International LLC (51%), mostly chromium compounds.
• Fine particles (PM2.5) average 8.1 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 154,031 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 46303

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

Based on 5 census tracts · compiled September 10, 2026 · how each grade works and its sources

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