Rockingham County, NH

ZIP 03261

In ZIP 03261, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Pembroke Water Works has 2 contaminants at or over an EPA legal limit; 6 contaminants are above health goals, led by pfos at 6.5× California’s Public Health Goal.
• Nearest Superfund site: Tibbetts Road, 6.3 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Pitco Frialator Inc (43%), mostly chromium.
• Fine particles (PM2.5) average 5.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 18,148 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 03261

• Superfund sites nearbyA to D
• Factories and industrial sitesA to B
• Oil and gas wellsA
• Parks and nature nearbyB to C
• Air qualityA
• Drinking water qualityA to F
• Pesticide useC
• Neighborhood health statusC to D
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA
• Radiation signalsD to F

Based on 3 census tracts · compiled September 10, 2026 · how each grade works and its sources

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