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Flood data for New Hampshire

Published NFIP policy and loss records, alongside a way to check the map.

Average annual premium and federal policy fee per policy unit

$1,243

As of 2026-08-31. A portfolio average, not a quote for a home.

Policies in force, including condo units
7,153
Cumulative recorded losses
4,423
Net dollars paid
$67,135,509

Cumulative losses in the HUDEX report through August 31, 2026. Loss counts include claims closed without payment. No annual series or first loss year is stated in this report.

Find a flood zone in New Hampshire.

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County policy and loss records

New Hampshire NFIP records as of 2026-08-31
CountyPremium + fee / unitPolicy unitsRecorded losses
Rockingham County$1,0413,7412,164
Hillsborough County$1,395884630
Grafton County$1,205758361
Merrimack County$1,725415306
Carroll County$1,414343298
Cheshire County$1,853323248
Belknap County$1,146234117
Strafford County$1,267216138
Sullivan County$2,30712862
Coos County$1,91011196

State policy mix by rated zone group

These are insured policy units grouped by their rated zones, not a percentage of the state’s land or homes.

NFIP rated zone groups, 2026-08-31
Rated groupPolicy unitsShare of insured units
All A zones combined5,08671.1%
All V zones combined1492.1%
Emergency program10.0%
Unknown or invalid rated zone240.3%
X, B and C zones combined1,89326.5%

Largest recorded loss years

Published net claim payments from 1978 through 2026, grouped by year of loss. Dollar amounts are nominal. The 2026-09-08 OpenFEMA claims release is a separate population from the policy workbook above.

2006$13,838,8342007$10,835,6442024$10,408,4772005$5,207,8492011$3,469,085
All published years and net payments
New Hampshire claims history
Year of lossNet payments
1978$933,863
1979$255,843
1980$16,929
1981$143,341
1982$32,218
1983$69,450
1984$371,126
1985$0
1986$199,537
1987$1,234,454
1988$9,949
1989$1,492
1990$20,975
1991$1,843,012
1992$67,518
1993$17,897
1994$14,382
1995$159,421
1996$2,354,732
1997$144,159
1998$729,572
1999$41,304
2000$116,965
2001$189,463
2002$53,016
2003$164,097
2004$220,004
2005$5,207,849
2006$13,838,834
2007$10,835,644
2008$824,919
2009$40,732
2010$2,258,971
2011$3,469,085
2012$1,821,786
2013$369,324
2014$219,757
2015$58,143
2016$76,178
2017$1,103,425
2018$2,480,276
2019$34,158
2020$0
2021$929,118
2022$1,716,348
2023$2,037,767
2024$10,408,477
2025$0
2026$0

Records without payment are included in counts. Missing county records are retained in national controls and are not allocated to counties. OpenFEMA NFIP redacted claims V3.

Data and methodology

Complete official HUDEX report, summed across its community rows within each geocoded county FIPS. Policy Count includes condominium units under master policies. Average premium is Total Premium + Federal Policy Fee divided by Policy Count; this is an aggregate per policy unit, not a property quote. Loss counts include losses closed without payment. Total Net Dollars Paid is cumulative in this report, including the source's adjustments. The report does not specify the first loss year or split losses by year, so a starting year and annual breakdown are not inferred. Unassigned county records are retained in state totals separately. No record sampling.

Official NFIP policy and loss geography workbook

Read the full methodology and coverage limits