Hillsborough, NH
Hillsborough County in New Hampshire has 9 FEMA disaster declarations on record covering 1973–2012, most recently Hurricane Sandy on Oct 30, 2012 (DR-3360). Its flood risk grade is A (Low risk), ranking #208 of 3,277 U.S. counties, with 11 NFIP flood insurance claims totaling $327,247 in payouts. Flood risk is relatively low compared to the national average.
FEMA Disaster Declarations in Hillsborough County
The 9 most recent federally declared disasters affecting Hillsborough County, NH (1973–2012). Total declarations on record: 9.
| Declared | Incident Type | Title | FEMA Disaster # |
|---|---|---|---|
| Oct 30, 2012 | Hurricane | Hurricane Sandy | DR-3360 |
| Aug 27, 2011 | Hurricane | Hurricane Irene | DR-3333 |
| Sep 19, 2005 | Hurricane | Hurricane Katrina Evacuation | DR-3258 |
| Oct 29, 1996 | Flood | Fall Northeaster Rainstorm | DR-1144 |
| Sep 9, 1991 | Hurricane | Hurricane Bob & Severe Storms | DR-917 |
| Aug 29, 1990 | Flood | Severe Storms & Flooding | DR-876 |
| Apr 16, 1987 | Flood | Severe Storms & Flooding | DR-789 |
| Aug 27, 1986 | Flood | Severe Storms, Flooding | DR-771 |
| Jul 11, 1973 | Flood | Severe Storms & Flooding | DR-399 |
Score Breakdown
The composite score of 20 is calculated from four weighted factors. See our methodology for details.
Other Counties in New Hampshire
| County | Grade | Score | Claims | Disasters |
|---|---|---|---|---|
| Grafton | B | 23 | 13 | 14 |
| 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 Hillsborough County, NH have?
Hillsborough County, NH has 9 federal disaster declarations on FEMA record (1973–2012). The 5 most recent are: Hurricane Sandy (declared Oct 30, 2012, DR-3360); Hurricane Irene (declared Aug 27, 2011, DR-3333); Hurricane Katrina Evacuation (declared Sep 19, 2005, DR-3258); Fall Northeaster Rainstorm (declared Oct 29, 1996, DR-1144); Hurricane Bob & Severe Storms (declared Sep 9, 1991, DR-917). Counts include flood, severe storm, hurricane, and coastal storm declarations from the OpenFEMA DisasterDeclarationsSummaries dataset.
What is the flood risk grade for Hillsborough County, NH?
Hillsborough County is graded A (composite score 20/100, low risk). It ranks #208 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 Hillsborough County?
11 NFIP flood insurance claims have been filed in Hillsborough County, NH, totaling $327,247 in payouts. The average claim is $29,750. Source: FEMA FimaNfipClaims v2 dataset.
Has Hillsborough County, NH had any recent flood disasters?
Yes. The most recent FEMA declaration affecting Hillsborough County was Hurricane Sandy on Oct 30, 2012 (DR-3360). The county has 9 declared disasters in the OpenFEMA record covering 1973–2012.
this entity is one of the data points covered by this site’s U.S. flood risk, NFIP claims, and disaster declarations dataset. The detail above comes directly from FEMA OpenFEMA datasets including the National Flood Hazard Layer and NFIP claims; the context that follows situates the headline numbers against the broader distribution across U.S. ZIPs, counties, and states.
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.
Practical use of this page is in combination with the comparison and ranking pages elsewhere on the site, which surface the same data for this entity’s peers within U.S. ZIPs, counties, and states. A single-entity reading without peer context can be misleading when an entity is an outlier on one axis but typical on another.
Source: FEMA OpenFEMA datasets, 2026.