FLOOD RISK NH

New Hampshire NFIP Flood Claim History: 4,332 Claims

4,332 FEMA claims · $66,804,277 reported payment-component sum · 62% A/V-family among claim-record ZIPs · Updated

Data: FEMA NFIP, FEMA Flood Map Service Center Last verified:

ZipCheckup tracks historical NFIP data for New Hampshire: 4,332 flood-insurance claims, $66,804,277 in reported payment components, and claim-rated-zone evidence across 198 ZIP codes. The 62% figure is the A/V-family share among claim-record ZIPs, not current map coverage.

4,332
FEMA Claims
$66,804,277
Reported Payment-Component Sum
62%
A/V-Family Share of Claim-Record ZIPs
$20,146
Avg Reported Sum With Payment Data
198
ZIPs With Claim Records
253
Cities

New Hampshire has 4,332 historical NFIP claims. Among 198 ZIP codes with claim records, 62% have an A- or V-family dominant rated zone recorded in those claims. This is claims evidence, not a current property-map risk classification.

City Water Quality Map: New Hampshire

Each circle represents a city. Size indicates population, color indicates water quality grade. Tap a circle for details.

A B C D F Circle size = population

Cities with Most Flood Claims in New Hampshire

#CityFEMA ClaimsReported Payment ComponentsPopulation
1 Hampton 974 $14,853,840 16,180 Details →
2 Rye 223 $2,340,063 5,092 Details →
3 Keene 180 $5,612,761 25,035 Details →
4 Goffstown 157 $3,452,804 14,013 Details →
5 Suncook 139 $3,115,543 12,115 Details →
6 Salem 134 $2,459,668 30,646 Details →
7 Exeter 102 $1,329,135 22,676 Details →
8 Raymond 101 $1,470,916 10,837 Details →
9 Seabrook 91 $801,976 8,613 Details →
10 Rye Beach 76 $1,571,008 459 Details →

Flood Risk Overview

Among 198 ZIP codes with NFIP claim records in New Hampshire, 62% have an A- or V-family dominant recorded rated zone in those historical claims. This is claims evidence, not a complete current FEMA property-map inventory. Residents have filed 4,332 flood insurance claims through NFIP. The sum of reported building, contents, and ICC payment components is $66.8M across 3,316 claims with payment data.

Among claims with reported payment data, the average reported component sum in New Hampshire is $20K. 1,016 claims lack payment fields and are not treated as zero.

Cities with Most Flood Claims

Rank City FEMA Claims Reported Payment-Component Sum Population
1 Hampton 974 $14.9M 16,180
2 Rye 223 $2.3M 5,092
3 Keene 180 $5.6M 25,035
4 Goffstown 157 $3.5M 14,013
5 Suncook 139 $3.1M 12,115
6 Salem 134 $2.5M 30,646
7 Exeter 102 $1.3M 22,676
8 Raymond 101 $1.5M 10,837
9 Seabrook 91 $802K 8,613
10 Rye Beach 76 $1.6M 459

Understanding Flood Zones

FEMA classifies areas by flood risk:

Zone Risk Level Insurance Required?
A, AE, AH, AO High risk (Special Flood Hazard Area) Yes, with federal mortgage
V, VE High risk, coastal Yes, with federal mortgage
B, X (shaded) Moderate risk Recommended
C, X (unshaded) Low risk Optional

In the claims dataset, 122 New Hampshire ZIP codes have an A- or V-family dominant recorded rated zone. This historical claims field cannot determine whether a specific property is currently inside a high-risk FEMA flood zone. Check the official FEMA map by address.

Flood Insurance in New Hampshire

Key facts about flood insurance for New Hampshire homeowners:

  • Standard homeowners insurance does not cover flood damage - a separate flood policy is required
  • The average NFIP policy costs $700-$1,500/year depending on flood zone, elevation, and property type
  • 30-day waiting period applies to new NFIP policies (except at closing)
  • Private flood insurance may offer lower rates in some areas
  • 4,332 claims have been filed in New Hampshire; among 3,316 claims with payment data, the average reported component sum is $20K

How Flooding Affects Water Quality

Flooding poses serious risks to drinking water:

  • Treatment plant overflows can allow untreated or partially treated water into distribution systems
  • Stormwater runoff introduces pesticides, fertilizers, and industrial chemicals
  • Sewage system backups contaminate groundwater and surface water sources
  • Infrastructure damage can compromise pipes and create entry points for contaminants

After flooding events, monitor your utility's website and local news for boil water advisories.

Flood Damage Prevention

Steps to reduce flood damage to your home:

  1. Install a sump pump with battery backup
  2. Elevate utilities (furnace, water heater, electrical panel) above potential flood levels
  3. Apply waterproof sealant to basement walls and floors
  4. Maintain gutters and drains to direct water away from foundations
  5. Consider flood vents in foundation walls
  6. Check for FEMA mitigation grants - many communities participate in hazard mitigation programs

Data Sources

Updated daily.

Wondering about flood risk at your address?

Flood risk varies block by block. Enter your ZIP code to see FEMA flood zone data, claims history, and insurance requirements for your specific area.

Check Flood Insurance Requirements →

Frequently Asked Questions

Is New Hampshire at risk of flooding?

Among 198 ZIP codes with NFIP claim records in New Hampshire, 62% have an A- or V-family dominant rated zone recorded in those historical claims. The dataset contains 4,332 claims and $66.8M in reported payment components. It is not a complete current FEMA property-map inventory.

Which city in New Hampshire has the most flood claims?

Hampton has the largest recorded claim count in this state summary, with 974 NFIP claims and $14.9M in reported payment components. Claim history is not a current property-level flood designation.

Do I need flood insurance in New Hampshire?

If your property is in a FEMA Special Flood Hazard Area and you have a federally backed mortgage, flood insurance is required. Even outside mapped flood zones, FEMA reports over 40% of claims come from areas not designated as high risk. The average NFIP policy costs $700-$1,500/year.

How does flooding affect water quality?

Flooding can contaminate drinking water by overwhelming treatment systems, introducing sewage and runoff into water supplies, and damaging infrastructure. Boil water advisories are common after major floods. Local utility alerts provide information during these events.

How many flood claims have been filed in New Hampshire?

4,332 NFIP flood insurance claims are recorded across New Hampshire. Reported payment components sum to $66.8M; among 3,316 claims with payment data, the average reported component sum is $20K. 1,016 claims lack payment fields and are not treated as zero.

How to cite this page

APA ZipCheckup. (2026). New Hampshire NFIP Flood Claim History: 4,332 Claims. https://zipcheckup.com/states/new-hampshire/flood-risk/
BibTeX
@misc{zipcheckup-states-new-hampshire-flood-risk,
  author = {{ZipCheckup}},
  title  = {{New Hampshire NFIP Flood Claim History: 4,332 Claims}},
  year   = {2026},
  url    = {https://zipcheckup.com/states/new-hampshire/flood-risk/}
}

Page version: August 2026.

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