Hunterdon County, New Jersey
Natural disaster risk, federal disaster history and flood insurance facts.
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
- 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.
- Secure outdoor furniture and trash bins before storms.
- Have trees near the house checked.
- 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.
All 18 hazards
What the ratings mean ›| Hazard | Rating | Score | Expected loss a year | |
|---|---|---|---|---|
| Inland flooding | 86.8 | $50M | ||
| Strong wind | 96.2 | $6M | ||
| Tornado | 51.4 | $2M | ||
| Earthquake | 75.5 | $2M | ||
| Heat wave | 72.1 | $2M | ||
| Hurricane | 74.7 | $2M | ||
| Cold wave | 47.7 | $1M | ||
| Ice storm | 86.2 | $1M | ||
| Drought | 73.0 | $1M | ||
| Lightning | 65.8 | $732K | ||
| Winter weather | 81.8 | $395K | ||
| Hail | 18.4 | $113K | ||
| Wildfire | 26.3 | $20K | ||
| Landslide | 49.4 | $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
Most recent
Show all 23
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.
Strongest tornadoes
| Date | Strength | Near | Hurt / killed |
|---|---|---|---|
| Feb 2, 1973 | F2 | – | 0 / 0 |
| Apr 14, 1974 | F2 | – | 0 / 0 |
| Sep 23, 2003 | F1 | Sergeantsville | 0 / 0 |
| Feb 2, 1973 | F1 | – | 0 / 0 |
| Feb 2, 1973 | F1 | – | 0 / 0 |
Most damaging storms
| Date | Type | Near | Damage |
|---|---|---|---|
| Aug 28, 2011 | Flood | Holland | $50M |
| Sep 16, 1999 | Flash Flood | Countywide | $9M |
| Jun 28, 2006 | Flood | Countywide | $8M |
| Sep 1, 2021 | Flash Flood | Riegel Ridge | $6M |
| May 25, 1994 | Tornado | Lambertville | $5M |
| Aug 2, 2009 | Flash Flood | Califon | $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.
Strongest storms nearby
| Date | Storm | Strength | Closest |
|---|---|---|---|
| Aug 24, 1893 | Unnamed | Category 1, 85 mph | 55 mi |
| Oct 23, 1878 | Unnamed | Category 1, 85 mph | 57 mi |
| Sep 16, 1903 | Unnamed | Category 1, 75 mph | 65 mi |
| Jul 13, 1996 | Bertha | Tropical storm, 70 mph | 48 mi |
| Aug 28, 2011 | Irene | Tropical storm, 65 mph | 61 mi |
| Sep 29, 1874 | Unnamed | Tropical storm, 65 mph | 52 mi |
Most recent storms
| Date | Storm | Strength | Closest |
|---|---|---|---|
| Aug 4, 2020 | Isaias | Tropical storm, 65 mph | 64 mi |
| Jul 10, 2020 | Fay | Tropical storm, 45 mph | 61 mi |
| Aug 28, 2011 | Irene | Tropical storm, 65 mph | 61 mi |
| Sep 6, 2008 | Hanna | Tropical storm, 50 mph | 64 mi |
| Sep 16, 1999 | Floyd | Tropical storm, 60 mph | 65 mi |
| Jul 13, 1996 | Bertha | Tropical storm, 70 mph | 48 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 ›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
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 counties | Overall risk | Top hazard |
|---|---|---|
| Bergen County | Inland flooding | |
| Essex County | Inland flooding | |
| Middlesex County | Inland flooding | |
| Hudson County | Inland flooding | |
| Monmouth County | Inland flooding | |
| Ocean County | Inland flooding | |
| Union County | Inland flooding | |
| Passaic County | Inland flooding |
Neighboring counties
| County | Overall risk | Declarations |
|---|---|---|
| Bucks County, PA | 25 | |
| Morris County | 30 | |
| Mercer County | 25 | |
| Somerset County | 27 | |
| Warren County | 24 |
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.