What to know about ZIP 03604
ZIP code 03604 covers NH in Cheshire County.
It sits in telephone area code 603; U.S. House district NH-2; the BOSTON (MANCHESTER) media market.
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ZIP Code 03604 — 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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Quick Facts
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At a glance
Overview of ZIP Code 03604
Climate risk and migration signals
FEMA’s National Risk Index rates natural-hazard risk for NH as Relatively Low (composite score 60.5), which is near the middle of the national distribution. The strongest component scores on US5 are hurricane (76.1) and flood (74.8). 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 47.0 inches of annual precipitation.
Nearby (from this ZIP)
Airport EEN (16.7 miles (26.9 km)) · Landmark College (12.4 miles (20.0 km)) · Saint-Gaudens National Historical Park (25.7 miles (41.4 km)) · VA: Keene Outpatient Clinic (15.8 miles (25.5 km))
Full lists and map pins are in the Infrastructure section below.