Sullivan County flood history
New Hampshire · From FEMA's flood insurance and disaster data · Updated 2026-10-08
FEMA's National Flood Insurance Program (NFIP) data lists 62 flood insurance claims in Sullivan County, New Hampshire since 1978. The NFIP paid $1.3 million on them (building, contents and Increased Cost of Compliance payments, in the dollars of the year paid).
The year with the most claims was 2023, with 13.
In the last ten years (2017–2026) there were 18 claims, and the average paid claim was $60,245.
23% of the claims with a recorded flood zone came from buildings outside FEMA's high-risk zones (rated zones B, C and X).
About 0.6% of homes in Sullivan County, New Hampshire had an NFIP flood policy in FEMA's latest count (92 of 14,214 residential buildings). In the high-risk flood zones (Special Flood Hazard Areas), it was 17% (64 of 373).
Since 2000, FEMA has made 8 flood-related disaster declarations covering Sullivan County, New Hampshire. The most recent was DR-4799-NH (Severe Winter Storm and Flooding), declared July 10, 2024.
NFIP claims by year
Show as a table
| Year | Claims | Paid |
|---|---|---|
| 2023 | 13 | $309,588 |
| 2021 | 3 | $592,952 |
| 2019 | 1 | $1,132 |
| 2018 | 1 | $0 |
| 2014 | 2 | $46,013 |
| 2013 | 3 | $45,946 |
| 2011 | 3 | $38,009 |
| 2008 | 1 | $2,053 |
| 2007 | 4 | $18,704 |
| 2006 | 2 | $11,079 |
| 2005 | 5 | $134,558 |
| 1999 | 2 | $0 |
| 1996 | 2 | $30,052 |
| 1993 | 1 | $0 |
| 1992 | 3 | $1,832 |
| 1987 | 1 | $2,332 |
| 1986 | 2 | $6,190 |
| 1984 | 5 | $9,424 |
| 1983 | 1 | $0 |
| 1981 | 6 | $14,922 |
| 1979 | 1 | $406 |
Named flood events
| Event | Year | Claims | Paid |
|---|---|---|---|
| Flooding | 1987 | 1 | $2,332 |
| Hurricane Irene | 2011 | 2 | $0 |
How many homes have flood insurance
FEMA counts 92 residential NFIP policies in Sullivan County, against 14,214 residential buildings (0.6%). Of the 373 residential buildings in high-risk flood zones (Special Flood Hazard Areas), 64 have an NFIP policy (17%). Private flood policies aren't in these counts.
Whether you're required to carry flood insurance depends on your flood zone and your mortgage. See do I need flood insurance?
Flood-related disaster declarations
| Declaration | Declared | Event | Help for individuals |
|---|---|---|---|
| DR-4799-NH | Jul 10, 2024 | Severe Winter Storm and Flooding | No |
| DR-4740-NH | Sep 14, 2023 | Severe Storms and Flooding | No |
| DR-4624-NH | Oct 4, 2021 | Severe Storm and Flooding | No |
| DR-4355-NH | Jan 2, 2018 | Severe Storm and Flooding | No |
| DR-4139-NH | Aug 2, 2013 | Severe Storms, Tornadoes, and Flooding | No |
| DR-1695-NH | Apr 27, 2007 | Severe Storms and Flooding | Yes |
| DR-1610-NH | Oct 26, 2005 | Severe Storms and Flooding | Yes |
| DR-1489-NH | Sep 12, 2003 | Severe Storms and Flooding | No |
Check your own address
County numbers can't tell you about a single building. Look up your property on FEMA's flood map, then read what your flood zone means. More counties: all of New Hampshire.
Where these numbers come from
All figures on this page are calculated from FEMA's public OpenFEMA datasets:
- NFIP Redacted Claims (v3) (FEMA (OpenFEMA)): NFIP claims since 1978, downloaded 2026-10-08. Dollar amounts are what the NFIP paid, not adjusted for inflation. Claims filed under private flood insurance aren't included.
- NFIP Residential Penetration Rates (v1) (FEMA (OpenFEMA)): NFIP residential policy contracts in force (as of August 3, 2026) divided by FEMA's count of residential buildings from the National Structure Inventory. FEMA notes that inventory is incomplete in some counties, which can inflate the rate. Private flood policies aren't counted.
- Disaster Declarations Summaries (v2) (FEMA (OpenFEMA)): disaster declarations, downloaded 2026-10-08. We count a declaration as flood-related when FEMA lists flooding (or a dam or levee break) as its incident type or a designated incident type, or the declaration's title mentions flooding.
FEMA's redacted claims data doesn't identify properties, and FEMA notes that some records lack a county or flood zone. See how we use the data.