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Hunterdon County, New Jersey

Natural disaster risk, federal disaster history and flood insurance facts.

Relatively Low overall risk
19th of 21highest risk in New Jersey
$69Mexpected losses a year
23federal declarations
1 in 67homes with flood insurance
Photo: U.S. Geological Survey, public domain

Hunterdon County, New Jersey has a relatively low overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 79% of US counties. It ranks 19th of 21 counties in New Jersey. The costliest hazards here are inland flooding, strong wind and tornadoes. FEMA estimates about $69 million a year in expected losses, or roughly $532 per resident. Since 1965 it has been included in 23 federal disaster or emergency declarations for natural events (14 major disasters). The most recent was in September 2021 (remnants of hurricane ida). About 1 in 67 homes here carry federal flood insurance (637 policies). Since 1978, federal flood insurance has paid about $39 million on 1,572 claims here, including $15 million for floods in 2021.

FEMA National Risk Index December 2025; OpenFEMA declarations to Nov 6, 2026; NFIP records. Updated November 6, 2026.

Top risks in Hunterdon County

$49.9 million a yearExpected losses. Damaging events about 3 times a year.
  • Check the FEMA flood map for your address, and ask the seller or landlord about past flooding.
  • Price a flood policy now. Most new federal policies take 30 days to start.
$6 million a yearExpected losses. Damaging events about 7 times a year.
  • Secure outdoor furniture and trash bins before storms.
  • Have trees near the house checked.
$2.3 million a yearExpected losses. Damaging events about once every 5 years.
  • Pick a shelter spot: a basement, or an inside room on the lowest floor with no windows.
  • Turn on emergency alerts on your phone and keep a weather radio.
HazardRatingScoreExpected loss a year
Inland floodingModerate86.8
$50M
Strong windHigh96.2
$6M
TornadoLow51.4
$2M
EarthquakeLow75.5
$2M
Heat waveLow72.1
$2M
HurricaneLow74.7
$2M
Cold waveLow47.7
$1M
Ice stormHigh86.2
$1M
DroughtModerate73.0
$1M
LightningModerate65.8
$732K
Winter weatherModerate81.8
$395K
HailVery Low18.4
$113K
WildfireVery Low26.3
$20K
LandslideVery Low49.4
$2K

Scores are percentiles: a score of 90 means higher risk than about 90% of US counties for that hazard. Hazards FEMA does not rate here are left out. Social vulnerability is very low and community resilience is very high in FEMA's measures.

Federal disaster history

Recent disasters nationwide ›

Declarations by decade

Federal declarations for natural events that included Hunterdon County. 2020s bar runs to November 2026.

By type

Hurricane9
Severe Storm7
Snowstorm3
Drought2
Flood1
Fire1

Most recent

Sep 5, 2021Remnants of Hurricane IdaMajor disaster
Sep 2, 2021Remnants of Hurricane IdaEmergency
Mar 14, 2016Severe Winter Storm and SnowstormMajor disaster
Oct 30, 2012Hurricane SandyMajor disaster
Oct 28, 2012Hurricane SandyEmergency
Nov 30, 2011Severe StormMajor disaster
Oct 14, 2011Remnants of Tropical Storm LeeMajor disaster
Aug 31, 2011Hurricane IreneMajor disaster
Aug 27, 2011Hurricane IreneEmergency
Apr 2, 2010Severe Storms and FloodingMajor disaster
Show all 23
Jul 7, 2006Severe Storms and FloodingMajor disaster
Sep 19, 2005Hurricane Katrina EvacuationEmergency
Apr 19, 2005Severe Storms and FloodingMajor disaster
Oct 1, 2004Severe Storms and FloodingMajor disaster
Mar 20, 2003SnowEmergency
Sep 19, 2001Fires and ExplosionsEmergency
Sep 18, 1999Hurricane Floyd Major Disaster DeclarationsMajor disaster
Sep 17, 1999Hurricane Floyd Emergency DeclarationsEmergency
Jan 13, 1996Blizzard of 96 (Severe Snow Storm)Major disaster
Mar 17, 1993Severe BlizzardEmergency
Oct 19, 1980Water ShortageEmergency
Sep 4, 1971Heavy Rains & FloodingMajor disaster
Aug 18, 1965Water ShortageMajor disaster

New Jersey also had 3 statewide declarations that did not name single counties.

Storm history since 1962

Tornado risk by county ›

The National Weather Service has logged 586 storm reports in Hunterdon County since 1962, with 10 deaths and 30 injuries and about $90.2 million in reported damage. The strongest on record here was an F2 tornado on February 2, 1973.

9tornadoes
44hail reports, largest 1.75 inches
333damaging thunderstorm winds
115floods and flash floods

Strongest tornadoes

DateStrengthNearHurt / killed
Feb 2, 1973F2–0 / 0
Apr 14, 1974F2–0 / 0
Sep 23, 2003F1Sergeantsville0 / 0
Feb 2, 1973F1–0 / 0
Feb 2, 1973F1–0 / 0

Most damaging storms

DateTypeNearDamage
Aug 28, 2011FloodHolland$50M
Sep 16, 1999Flash FloodCountywide$9M
Jun 28, 2006FloodCountywide$8M
Sep 1, 2021Flash FloodRiegel Ridge$6M
May 25, 1994TornadoLambertville$5M
Aug 2, 2009Flash FloodCalifon$5M

Source: NOAA Storm Events Database, county-based reports through Jul 28, 2026. Tornado records start in 1950, hail and wind in 1955, and floods and other storm types in 1996, so older decades undercount. Damage is in dollars of the year it happened and is often an estimate. Winter storms, heat and hurricanes are logged by forecast zone, not county, so they are not counted here.

Hurricanes and tropical storms

Hurricane risk by county ›

Since 1861, 3 hurricanes and 17 tropical storms have passed within 65 miles of the center of Hunterdon County, 10 of them since 1950. The strongest was an unnamed hurricane in 1893, with top winds near 85 mph about 55 miles away.

3hurricanes
0major hurricanes (Category 3+)
17tropical storms
2020most recent: Isaias

Strongest storms nearby

DateStormStrengthClosest
Aug 24, 1893UnnamedCategory 1, 85 mph55 mi
Oct 23, 1878UnnamedCategory 1, 85 mph57 mi
Sep 16, 1903UnnamedCategory 1, 75 mph65 mi
Jul 13, 1996BerthaTropical storm, 70 mph48 mi
Aug 28, 2011IreneTropical storm, 65 mph61 mi
Sep 29, 1874UnnamedTropical storm, 65 mph52 mi

Most recent storms

DateStormStrengthClosest
Aug 4, 2020IsaiasTropical storm, 65 mph64 mi
Jul 10, 2020FayTropical storm, 45 mph61 mi
Aug 28, 2011IreneTropical storm, 65 mph61 mi
Sep 6, 2008HannaTropical storm, 50 mph64 mi
Sep 16, 1999FloydTropical storm, 60 mph65 mi
Jul 13, 1996BerthaTropical storm, 70 mph48 mi

Source: NOAA National Hurricane Center best-track records (HURDAT2), 1851 to 2025 for the Atlantic and 1949 to 2025 for the eastern Pacific. A storm counts if its track passed within 65 miles of the county's center while it was a tropical storm or hurricane. Strength is the storm's top sustained wind at that point, not the wind measured in the county. Older storms over the open sea were sometimes missed.

Flood insurance in Hunterdon County

Check your address flood zone ›
1.5%of homes have federal flood insurance (637 policies)
66.4%of homes in mapped high-risk flood zones are insured
$39.5 millionpaid on 1,572 flood claims since 1978
2021costliest year, with $15.1 million paid

National Flood Insurance Program (NFIP) records only; private flood policies are not included. Home counts as of Aug 3, 2026. Since 2021 NFIP prices each home separately under Risk Rating 2.0, so your price depends on the building, not the county. Ask an agent for a quote.

Homes in Hunterdon County

$517,200median home value (New Jersey $454,400, US $332,700)
1979median year homes were built (New Jersey 1970, US 1980)
51%of homes built before 1980, before many modern wind, quake and flood building rules
0.3%of homes are mobile homes, which are the least safe in tornadoes and high winds

Older homes and mobile homes usually suffer more damage in storms, floods and earthquakes, and can cost more to insure. If you are buying, ask about roof age, foundation bolting and any retrofits. Source: US Census Bureau, American Community Survey 2020 to 2024 5-year estimates; 52,115 housing units.

Compare in New Jersey

All 21 ›
Largest countiesOverall riskTop hazard
Bergen CountyHighInland flooding
Essex CountyHighInland flooding
Middlesex CountyHighInland flooding
Hudson CountyHighInland flooding
Monmouth CountyHighInland flooding
Ocean CountyHighInland flooding
Union CountyHighInland flooding
Passaic CountyHighInland flooding

Neighboring counties

CountyOverall riskDeclarations
Bucks County, PAHigh25
Morris CountyModerate30
Mercer CountyHigh25
Somerset CountyModerate27
Warren CountyLow24

Common questions about Hunterdon County

What is the biggest natural hazard in Hunterdon County?

Inland flooding has the highest expected yearly losses in Hunterdon County, about $49.9 million a year in FEMA's estimate. Strong wind is second at $6 million.

How many federal disasters has Hunterdon County had?

Hunterdon County has been included in 23 federal disaster or emergency declarations for natural events since 1965, including 14 major disasters. The most recent was Remnants of Hurricane Ida in September 2021.

Is Hunterdon County a high-risk place to live?

Its overall rating is Relatively Low, 19th highest of 21 in New Jersey. A county rating covers the whole area. Risk at one address can be much higher or lower, so check the FEMA flood map and ask about the home's history.

Do I need flood insurance in Hunterdon County?

Standard home insurance does not cover flooding. About 1 in 67 homes in Hunterdon County has federal flood insurance. Lenders require it in mapped high-risk zones, but many flood claims come from outside those zones.

How many tornadoes has Hunterdon County had?

NOAA records list 9 tornadoes in Hunterdon County since 1950. The strongest was an F2 tornado on February 2, 1973. The weather service has also logged 44 hail reports and 115 floods here.

How many hurricanes have hit Hunterdon County?

NOAA's hurricane records show 3 hurricanes and 17 tropical storms passing within 65 miles of the center of Hunterdon County. The strongest was an unnamed hurricane in 1893, with winds near 85 mph.

Sources: FEMA National Risk Index (December 2025), OpenFEMA Disaster Declarations Summaries, and NFIP policy and claims data. Hazard Compass is independent and not affiliated with FEMA. These figures describe the whole county, not a single property, and are not insurance or safety advice. Report a problem.