New Hampshire: 10 counties covered

Across 10 New Hampshire counties with a FEMA flood score, the average national percentile is 80.3 — but that average hides real spread between counties, which is why each one gets its own page rather than a single statewide number.

• Hillsborough County — 92.6th percentile, Relatively Moderate
• Rockingham County — 92.8th percentile, Relatively High
• Merrimack County — 85.8th percentile, Relatively Moderate
• Strafford County — 76th percentile, Relatively Moderate
• Grafton County — 90.1th percentile, Relatively Moderate
• Cheshire County — 74.8th percentile, Relatively Moderate
• Belknap County — 70.3th percentile, Relatively Low
• Carroll County — 82th percentile, Relatively Moderate
• Sullivan County — 60.6th percentile, Relatively Low
• Coos County — 77.6th percentile, Relatively Moderate