STATE RISK ROLL-UP

New Hampshire

Across 10 counties, FEMA rates 0 elevated or higher for overall natural-hazard risk. Here's what drives it — and where it concentrates.

How the counties rate

Niedrig7

Moderat3

Erhöht0

Hoch0

Dominant hazards

The hazards most often rated elevated or higher across New Hampshire's counties:

Eissturm — 6 counties
Winterwetter — 4 counties
Blitzschlag — 3 counties
Lawine — 1 county

Highest-risk counties

County	FEMA composite	Score
Hillsborough County	Relativ moderat	90
Rockingham County	Relativ moderat	86
Grafton County	Relativ moderat	82
Merrimack County	Relativ niedrig	78
Coos County	Relativ niedrig	73
Carroll County	Relativ niedrig	71

State figures are a roll-up of FEMA National Risk Index county data (counts and rankings), not an official FEMA state rating. Risk is an estimate from a public model, not a guarantee — verify your specific insurance needs with a licensed professional. See the methodology.

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FEMA National Risk Index · as of 2026-07-10