Flood risk in New Hampshire
FEMA NFIP historical claims and active policies aggregated by county. Pick a county to see total paid, average claim amount, and active policy count.
Counties with claims
10
of 10 reporting
Total NFIP claims
598
Total claims paid
$13,727,940
Active policies
861
Highest flood risk counties
Claims per 1,000 housing units. Higher means a larger share of homes have a documented claim on file.
- 1.Rockingham County2.57 / 1k
- 2.Carroll County2.45 / 1k
- 3.Grafton County2.39 / 1k
- 4.Cheshire County1.06 / 1k
- 5.Coos County0.88 / 1k
- 6.Sullivan County0.63 / 1k
- 7.Belknap County0.39 / 1k
- 8.Merrimack County0.35 / 1k
- 9.Hillsborough County0.27 / 1k
- 10.Strafford County0.18 / 1k
Lowest flood risk counties
Claims per 1,000 housing units, restricted to counties of at least 25,000 residents.
- 1.Strafford County0.18 / 1k
- 2.Hillsborough County0.27 / 1k
- 3.Merrimack County0.35 / 1k
- 4.Belknap County0.39 / 1k
- 5.Sullivan County0.63 / 1k
- 6.Coos County0.88 / 1k
- 7.Cheshire County1.06 / 1k
- 8.Grafton County2.39 / 1k
- 9.Carroll County2.45 / 1k
- 10.Rockingham County2.57 / 1k
Counties by historical claims
Sorted by total claims, highest first. Historical totals do not capture uninsured properties or future climate shifts.
How to read this
Historical claims show where NFIP-insured properties have actually filed. They under-count uninsured properties and don't forecast future risk from climate, upstream development, or new mitigation projects. For parcel-specific flood-zone designations, use FEMA's Map Service Center.
Data sources
Disclaimer. HomeRule is not a real estate agent, lender, appraiser, or financial advisor. This content is for educational and informational purposes only. Actual costs vary significantly by property, location, and individual circumstances. Consult qualified professionals for personalized advice.