10 counties · FEMA NRI December 2025
New Hampshire: home risks by county
0 of 10 New Hampshire counties are rated Relatively High or Very High for overall risk relative to other US counties. Sort the table to compare disaster declarations, flood-insurance claims and typical first freeze.
| County | Overall risk ↓ | Declarations | Flood claims | First freeze | Top hazard | Zone | Radon |
|---|---|---|---|---|---|---|---|
| Hillsborough County | Relatively Moderate | 31 | 629 | Oct 19 | Ice storm (Very High) | 5A | 2 |
| Rockingham County | Relatively Moderate | 35 | 2,165 | Oct 4 | Coastal flooding (Relatively High) | 5A | 2 |
| Grafton County | Relatively Moderate | 40 | 363 | Oct 6 | Winter weather (Relatively High) | 6A | 2 |
| Merrimack County | Relatively Low | 29 | 299 | Oct 3 | Ice storm (Relatively High) | 5A | 2 |
| Coos County | Relatively Low | 28 | 95 | Sep 19 | Avalanche (Very High) | 6A | 2 |
| Carroll County | Relatively Low | 36 | 290 | Sep 25 | Winter weather (Relatively High) | 6A | 1 |
| Strafford County | Relatively Low | 25 | 137 | Oct 9 | Ice storm (Relatively High) | 5A | 2 |
| Cheshire County | Relatively Low | 33 | 247 | Oct 6 | Lightning (Relatively Moderate) | 5A | 2 |
| Belknap County | Relatively Low | 30 | 108 | Oct 3 | Lightning (Relatively High) | 6A | 2 |
| Sullivan County | Very Low | 33 | 62 | Oct 3 | Ice storm (Relatively Moderate) | 6A | 2 |
Ratings are relative to other US counties, not probabilities. Counties without a link have too little public data for a full profile.
Other states
Alabama67Alaska30American Samoa3Arizona15Arkansas75California58Colorado64Connecticut9Delaware3District of Columbia1Florida67Georgia159Guam1Hawaii5Idaho44Illinois102Indiana92Iowa99Kansas105Kentucky120Louisiana64Maine16Maryland24Massachusetts14Michigan83Minnesota87Mississippi82Missouri115Montana56Nebraska93Nevada17New Jersey21New Mexico33New York62North Carolina100North Dakota53Northern Mariana Islands3Ohio88Oklahoma77Oregon36Pennsylvania67Puerto Rico78Rhode Island5South Carolina46South Dakota66Tennessee95Texas254Utah29Vermont14Virgin Islands3Virginia133Washington39West Virginia55Wisconsin72Wyoming23