Harris County, TX

ZIP 77043

In ZIP 77043, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Harris County Mud 370 meets every EPA legal limit; 9 contaminants are above health goals, led by bromodichloromethane at 108× California’s Public Health Goal.
• Nearest Superfund site: Crystal Chemical Co., 6.9 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Nov Rig Systems West Little York (31%), mostly chromium.
• Fine particles (PM2.5) average 9.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 38,374 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 77043

• Superfund sites nearbyC to D
• Factories and industrial sitesF
• Oil and gas wellsD
• Parks and nature nearbyB to C
• Air qualityD to F
• Drinking water qualityC
• Pesticide useA to C
• Neighborhood health statusA to C
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA to B
• Radiation signalsA

Based on 7 census tracts · compiled October 25, 2026 · how each grade works and its sources

Loading the full report, with every source…