Morris County, New Jersey
Natural disaster risk, federal disaster history and flood insurance facts.
Morris County, New Jersey has a moderate overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 93% of US counties. It ranks 13th of 21 counties in New Jersey. The costliest hazards here are inland flooding, cold waves and earthquakes. FEMA estimates about $208 million a year in expected losses, or roughly $409 per resident. Since 1965 it has been included in 30 federal disaster or emergency declarations for natural events (21 major disasters). The most recent was in September 2021 (remnants of hurricane ida). About 1 in 67 homes here carry federal flood insurance (2,195 policies). Since 1978, federal flood insurance has paid about $200 million on 9,463 claims here, including $120 million for floods in 2011.
FEMA National Risk Index December 2025; OpenFEMA declarations to Nov 6, 2026; NFIP records. Updated November 6, 2026.
Top risks in Morris 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.
- Insulate pipes in outside walls, crawl spaces and garages.
- Know how to shut off the main water valve.
- Ask whether an older house is bolted to its foundation.
- Consider separate earthquake insurance where risk is high.
All 18 hazards
What the ratings mean ›| Hazard | Rating | Score | Expected loss a year | |
|---|---|---|---|---|
| Inland flooding | 96.3 | $158M | ||
| Cold wave | 93.1 | $15M | ||
| Earthquake | 88.8 | $7M | ||
| Tornado | 79.9 | $6M | ||
| Hurricane | 85.2 | $6M | ||
| Strong wind | 96.7 | $6M | ||
| Heat wave | 89.2 | $5M | ||
| Lightning | 90.6 | $2M | ||
| Winter weather | 96.5 | $1M | ||
| Drought | 66.8 | $691K | ||
| Ice storm | 59.6 | $215K | ||
| Hail | 22.0 | $128K | ||
| Wildfire | 30.0 | $23K | ||
| Landslide | 74.0 | $14K | ||
| Avalanche | 16.7 | $33 |
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 Morris County. 2020s bar runs to November 2026.
By type
Most recent
Show all 30
New Jersey also had 3 statewide declarations that did not name single counties.
Storm history since 1951
Tornado risk by county ›The National Weather Service has logged 672 storm reports in Morris County since 1951, with 3 deaths and 39 injuries and about $313 million in reported damage. The strongest on record here was an F3 tornado on May 28, 1973.
Strongest tornadoes
| Date | Strength | Near | Hurt / killed |
|---|---|---|---|
| May 28, 1973 | F3 | – | 0 / 0 |
| May 28, 1973 | F3 | – | 12 / 0 |
| Jul 20, 1981 | F2 | – | 0 / 0 |
| Jul 19, 1971 | F1 | – | 0 / 0 |
| Jun 24, 1992 | F1 | – | 0 / 0 |
Most damaging storms
| Date | Type | Near | Damage |
|---|---|---|---|
| Aug 28, 2011 | Flood | Milton | $200M |
| Sep 16, 1999 | Flash Flood | Countywide | $30M |
| Apr 15, 2007 | Flood | Gillette | $26M |
| Mar 13, 2010 | Flood | Sterling | $15M |
| Aug 12, 2000 | Flash Flood | Countywide | $12M |
| Mar 7, 2011 | Flood | Lincoln Park | $11M |
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, 2 hurricanes and 18 tropical storms have passed within 65 miles of the center of Morris County, 10 of them since 1950. The strongest was an unnamed hurricane in 1893, with top winds near 85 mph about 49 miles away.
Strongest storms nearby
| Date | Storm | Strength | Closest |
|---|---|---|---|
| Aug 24, 1893 | Unnamed | Category 1, 85 mph | 49 mi |
| Oct 23, 1878 | Unnamed | Category 1, 85 mph | 62 mi |
| Jul 13, 1996 | Bertha | Tropical storm, 70 mph | 46 mi |
| Sep 16, 1903 | Unnamed | Tropical storm, 70 mph | 64 mi |
| Sep 29, 1874 | Unnamed | Tropical storm, 70 mph | 50 mi |
| Aug 28, 2011 | Irene | Tropical storm, 65 mph | 62 mi |
Most recent storms
| Date | Storm | Strength | Closest |
|---|---|---|---|
| Aug 4, 2020 | Isaias | Tropical storm, 65 mph | 55 mi |
| Jul 10, 2020 | Fay | Tropical storm, 45 mph | 65 mi |
| Aug 28, 2011 | Irene | Tropical storm, 65 mph | 62 mi |
| Sep 6, 2008 | Hanna | Tropical storm, 50 mph | 59 mi |
| Sep 16, 1999 | Floyd | Tropical storm, 60 mph | 62 mi |
| Jul 13, 1996 | Bertha | Tropical storm, 70 mph | 46 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 Morris 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 Morris 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; 199,506 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 |
|---|---|---|
| Essex County | 29 | |
| Union County | 26 | |
| Passaic County | 26 | |
| Somerset County | 27 | |
| Sussex County | 25 | |
| Hunterdon County | 23 | |
| Warren County | 24 |
Common questions about Morris County
What is the biggest natural hazard in Morris County?
Inland flooding has the highest expected yearly losses in Morris County, about $158 million a year in FEMA's estimate. Cold wave is second at $14.9 million.
How many federal disasters has Morris County had?
Morris County has been included in 30 federal disaster or emergency declarations for natural events since 1965, including 21 major disasters. The most recent was Remnants of Hurricane Ida in September 2021.
Is Morris County a high-risk place to live?
Its overall rating is Relatively Moderate, 13th 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 Morris County?
Standard home insurance does not cover flooding. About 1 in 67 homes in Morris 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 Morris County had?
NOAA records list 11 tornadoes in Morris County since 1950. The strongest was an F3 tornado on May 28, 1973. The weather service has also logged 72 hail reports and 128 floods here.
How many hurricanes have hit Morris County?
NOAA's hurricane records show 2 hurricanes and 18 tropical storms passing within 65 miles of the center of Morris 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.