FloodZoneMap.org

Rockingham County, New Hampshire Flood Zones

Check an Address in Rockingham County

Enter any address in Rockingham County, New Hampshire to see its FEMA flood zone

The Flooding Character of Rockingham County

Coastal flooding is the most frequent type of flood event in Rockingham County, NH, with 66 occurrences recorded in the last 30 years. Other flood types include general floods (28 events), flash floods (15 events), storm surge/tide (8 events), tropical storms (4 events), and hurricanes (1 event). Recent coastal flooding events occurred in January 2024, with one event on January 10th associated with a powerful storm system and another on January 13th, which combined with high astronomical tides to produce extreme flooding along the coast, setting records at the Hampton tide gage.

National Flood Insurance Program (NFIP) data shows a significant number of claims in Zone A (1088 claims) and Zone X (237 claims), with average payouts of $17,130 and $12,952 respectively. Zone V, associated with high-velocity wave action, had fewer claims (80) but the highest average payout ($21,402) and water depth (10.8 ft). Homeowners in coastal areas, properties near rivers, and those without a Base Flood Elevation (BFE) designation should pay particular attention to flood risk.

Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.

Read First-Hand Flood Stories from Rockingham County

80 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.

Read New Hampshire flood stories →

Flood Risk Data for Rockingham County

Rockingham County, New Hampshire has recorded 122 flood-related events since 1996 according to NOAA's Storm Events Database, including 15 flash floods and 28 river or area floods. The county has received 35 federal disaster declarations, 8 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.

Rockingham County Disaster History

FEMA Disaster Declarations (1972–2024)

Disaster Declarations
35
Flood/Coastal Disasters
8
Hurricane Disasters
2
Latest Disaster
Severe Winter Storm And Flooding (2024-04-03)

Source: OpenFEMA Disaster Declarations Summaries.

Recent Disaster Declarations in Rockingham County

DeclarationTypeDate
Severe Winter Storm And FloodingWinter StormApr 3, 2024
Severe Storms And FloodingSevere StormJan 9, 2024
Severe Storms And FloodingFloodJul 9, 2023
Covid-19BiologicalJan 20, 2020
Covid-19 PandemicBiologicalJan 20, 2020
Severe Winter Storm And SnowstormSnowstormMar 13, 2018
Severe Storm And FloodingCoastal StormMar 2, 2018
Severe Winter Storm And SnowstormSevere StormJan 26, 2015
Severe Winter Storm And SnowstormSevere StormFeb 8, 2013
Hurricane SandyHurricaneOct 26, 2012

Recorded Flood Events in Rockingham County

NOAA Storm Events Database (1996–2025)

Total Flood Events
122
River/Area Floods
28
Flash Floods
15
Coastal/Storm Surge
74
Hurricanes/Tropical Storms
5
Total Property Damage
$82.1M

Source: NOAA National Weather Service Storm Events Database.

Recent Flood Events in Rockingham County

TypeDateDamage
Flash FloodJan 13, 2024200.00K
Coastal FloodJan 13, 202430.00M
Coastal FloodMar 10, 2024
Coastal FloodJan 10, 202415.00M
Flash FloodJul 18, 20230.00K
FloodDec 18, 20230.00K
Flash FloodJun 9, 20230.00K
Flash FloodAug 8, 20230.00K
FloodJul 2, 20230.00K
FloodDec 23, 20220.00K

Rockingham County Flood History

Flash Flood — Jan 13, 2024

The second severe storm in a week���s time struck the northern New England coastline during the middle of January. An intense and rapidly deepening area of low pressure over the Great Lakes region (979 mb) combined the highest astronomical tides of the month to produce extreme flooding along the coast. Portland had its all-time storm tide, posting a record flood water level (records 1912-...

Coastal Flood — Jan 13, 2024

The second severe storm in a week���s time struck the northern New England coastline during the middle of January. An intense and rapidly deepening area of low pressure over the Great Lakes region (979 mb) combined the highest astronomical tides of the month to produce extreme flooding along the coast. Portland had its all-time storm tide, posting a record flood water level (records 1912-...

Coastal Flood — Mar 10, 2024

High pressure in control on the 9th began to slide northeast through the day as primary low pressure moved through the Great Lakes into southern Canada. A secondary area of low pressure developed over inland areas of the Carolinas. Sustained warm air advection forced a large area of moderate to heavy precipitation up and over the colder near-surface air mass. Light precipitation began as a mix,...

Coastal Flood — Jan 10, 2024

A powerful storm tracked northeast through the Mid Mississippi River Valley on the 9th, rapidly deepening as it approached the southern Great Lakes. Precipitation formed along and ahead of the advancing warm front, which arrived in part of northern New England during the evening of the 9th. High pressure anchored to the north of Maine dammed low level cold air up against the mountains and allow...

Flash Flood — Jul 18, 2023

Scattered showers and thunderstorms with heavy rainfall developed across the White Mountains and areas northward on the afternoon of the 18th. Moist air supported torrential rainfall rates between 2 to 3 inches an hour, all of which fell over saturated soils. Localized flash flooding resulted where storms trained over the same locations.

Source: NOAA National Weather Service Storm Events Database.

Rockingham County NFIP Flood Insurance Claims

Total Claims Filed
1,789
Total Paid Out
$25.5M
Avg Claim
$19,001
Avg Water Depth
11.7 ft

Claims by Flood Zone

A Zones (High Risk)
1,088
V Zones (Coastal)
80
X Shaded (500-yr)
36
X Unshaded (Low)
72

Source: OpenFEMA NFIP Individual Claims (2.25M records analyzed).

Flood Zone Types in Rockingham County

FEMA assigns flood zone designations to areas in Rockingham County, New Hampshire:

AE High Risk — 1% annual chance of flooding. Insurance required.

VE Very High Risk — Coastal flooding with wave action.

X (Shaded) Moderate Risk — 500-year floodplain.

X Low Risk — Outside major floodplains.

View all flood zone types →

Flood Insurance in Rockingham County

Properties in Rockingham County, New Hampshire that are in FEMA-designated Special Flood Hazard Areas (zones A and V) with federally backed mortgages are required to carry flood insurance.

Even outside high-risk zones, flood insurance is recommended. From 2014 to 2024, nearly one-third of NFIP claims came from outside the high-risk Special Flood Hazard Area.

Visit FloodSmart.gov to find an agent and get a quote.