What to know about ZIP 03291
ZIP code 03291 covers NH in Rockingham County.
It sits in telephone area code 603; U.S. House district NH-1; the BOSTON (MANCHESTER) media market.
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ZIP Code 03291 — undefined, NH Demographics & Data
Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.
Low Snow Area
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At a glance
Overview of ZIP Code 03291
Climate risk and migration signals
FEMA’s National Risk Index rates natural-hazard risk for NH as Relatively Moderate (composite score 85.8), which is elevated versus much of the country. The strongest component scores on US5 are flood (89.1) and hurricane (83.8). These scores are county-linked NRI values published for planning context — all ZIP codes in the same county share the same composite score on US5. Useful when comparing insurance and disaster exposure across areas, not a substitute for a parcel-level flood or fire determination.
Climate normals for NH show little to no average snow and around 45.4 inches of annual precipitation.
Nearby (from this ZIP)
Airport PSM (17.6 miles (28.3 km)) · University of New Hampshire-Main Campus (11.0 miles (17.7 km)) · Lowell National Historical Park (37.9 miles (61.0 km)) · VA: Somersworth Outpatient Clinic (13.1 miles (21.0 km))
Full lists and map pins are in the Infrastructure section below.