Grafton, NH
Grafton County in New Hampshire has 14 FEMA disaster declarations on record covering 1973–2023, most recently Severe Storms and Flooding on Sep 14, 2023 (DR-4740). Its flood risk grade is B (Moderate risk), ranking #102 of 3,277 U.S. counties, with 13 NFIP flood insurance claims totaling $56,526 in payouts. Flood risk is relatively low compared to the national average.
FEMA Disaster Declarations in Grafton County
The 14 most recent federally declared disasters affecting Grafton County, NH (1973–2023). Total declarations on record: 14.
| Declared | Incident Type | Title | FEMA Disaster # |
|---|---|---|---|
| Sep 14, 2023 | Flood | Severe Storms and Flooding | DR-4740 |
| Nov 28, 2012 | Hurricane | Hurricane Sandy | DR-4095 |
| Oct 30, 2012 | Hurricane | Hurricane Sandy | DR-3360 |
| Sep 3, 2011 | Hurricane | Tropical Storm Irene | DR-4026 |
| Aug 27, 2011 | Hurricane | Hurricane Irene | DR-3333 |
| Jul 22, 2011 | Flood | Severe Storms and Flooding | DR-4006 |
| Sep 19, 2005 | Hurricane | Hurricane Katrina Evacuation | DR-3258 |
| Oct 18, 1999 | Hurricane | Tropical Storm Floyd | DR-1305 |
| Oct 29, 1996 | Flood | Fall Northeaster Rainstorm | DR-1144 |
| Jan 3, 1996 | Flood | Excessive Rainfall, High Winds, and Flooding | DR-1077 |
| Aug 29, 1990 | Flood | Severe Storms & Flooding | DR-876 |
| Apr 16, 1987 | Flood | Severe Storms & Flooding | DR-789 |
| Jan 21, 1974 | Flood | Heavy Rains & Flooding | DR-411 |
| Jul 11, 1973 | Flood | Severe Storms & Flooding | DR-399 |
Score Breakdown
The composite score of 23 is calculated from four weighted factors. See our methodology for details.
Other Counties in New Hampshire
| County | Grade | Score | Claims | Disasters |
|---|---|---|---|---|
| Hillsborough | A | 20 | 11 | 9 |
| Cheshire | A | 16 | 5 | 12 |
| Sullivan | A | 15 | 4 | 13 |
| Carroll | A | 14 | 9 | 12 |
| Belknap | A | 13 | 0 | 10 |
| Coos | A | 13 | 6 | 11 |
More Counties in New Hampshire
Frequently Asked Questions
How many FEMA disaster declarations does Grafton County, NH have?
Grafton County, NH has 14 federal disaster declarations on FEMA record (1973–2023). The 5 most recent are: Severe Storms and Flooding (declared Sep 14, 2023, DR-4740); Hurricane Sandy (declared Nov 28, 2012, DR-4095); Hurricane Sandy (declared Oct 30, 2012, DR-3360); Tropical Storm Irene (declared Sep 3, 2011, DR-4026); Hurricane Irene (declared Aug 27, 2011, DR-3333). Counts include flood, severe storm, hurricane, and coastal storm declarations from the OpenFEMA DisasterDeclarationsSummaries dataset.
What is the flood risk grade for Grafton County, NH?
Grafton County is graded B (composite score 23/100, moderate risk). It ranks #102 of 3,277 U.S. counties for flood risk in our scoring model. The grade combines NFIP claims density (40%), disaster frequency (25%), claim severity (20%), and year-over-year trend (15%).
How many NFIP flood insurance claims have been filed in Grafton County?
13 NFIP flood insurance claims have been filed in Grafton County, NH, totaling $56,526 in payouts. The average claim is $4,348. Source: FEMA FimaNfipClaims v2 dataset.
Has Grafton County, NH had any recent flood disasters?
Yes. The most recent FEMA declaration affecting Grafton County was Severe Storms and Flooding on Sep 14, 2023 (DR-4740). The county has 14 declared disasters in the OpenFEMA record covering 1973–2023.
The this entity record above pulls directly from FEMA OpenFEMA datasets including the National Flood Hazard Layer and NFIP claims. What follows is the per-entity context — how this entity sits in the broader U.S. flood risk, NFIP claims, and disaster declarations distribution and which underlying factors drive the headline numbers.
The methodology behind every numeric value on this page is publicly documented on the FEMA OpenFEMA datasets including the National Flood Hazard Layer and NFIP claims portal and described in detail on this site’s methodology page. Refresh cadence varies by underlying series; the page surfaces the as-of date for each number so readers can trace any figure back to the source release.
For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for this entity is typically a peer within U.S. ZIPs, counties, and states with similar size, similar exposure, or similar geography — not the national-level summary alone.
Source: FEMA OpenFEMA datasets, 2026.