Howard County, TX

ZIP 79733

In ZIP 79733, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: City Of Big Spring has 1 contaminant at or over an EPA legal limit; 16 contaminants are above health goals, led by pfos at 4.4× California’s Public Health Goal.
• Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Alon Usa-Big Spring Refinery (81%), mostly benzene.
• Fine particles (PM2.5) average 6.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 136,886 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 79733

• Superfund sites nearbyA
• Factories and industrial sitesB
• Oil and gas wellsD
• Parks and nature nearbyC
• Air qualityA
• Drinking water qualityC to F
• Pesticide useF
• Neighborhood health statusD
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA
• Radiation signalsD

Based on 1 census tract · compiled September 10, 2026 · how each grade works and its sources

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