Rockland County, New York
Natural disaster risk, federal disaster history and flood insurance facts.
Rockland County, New York has a moderate overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 88% of US counties. It ranks 13th of 62 counties in New York. The costliest hazards here are inland flooding, cold waves and earthquakes. FEMA estimates about $60 million a year in expected losses, or roughly $179 per resident. Since 1965 it has been included in 26 federal disaster or emergency declarations for natural events (18 major disasters). The most recent was in July 2023 (severe storms and flooding). About 1 in 77 homes here carry federal flood insurance (990 policies). Since 1978, federal flood insurance has paid about $45 million on 3,480 claims here, including $16 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 Rockland 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 | 91.8 | $38M | ||
| Cold wave | 86.6 | $4M | ||
| Earthquake | 88.7 | $4M | ||
| Hurricane | 85.6 | $3M | ||
| Strong wind | 97.0 | $3M | ||
| Tornado | 77.5 | $3M | ||
| Heat wave | 90.4 | $3M | ||
| Lightning | 91.7 | $1M | ||
| Coastal flooding | 64.6 | $597K | ||
| Winter weather | 94.8 | $537K | ||
| Ice storm | 78.0 | $286K | ||
| Hail | 15.0 | $41K | ||
| Drought | 21.7 | $5K | ||
| Wildfire | 14.6 | $4K | ||
| Landslide | 61.5 | $2K | ||
| Avalanche | 35.8 | $138 |
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 relatively high and community resilience is relatively high in FEMA's measures.
Federal disaster history
Recent disasters nationwide ›Declarations by decade
Federal declarations for natural events that included Rockland County. 2020s bar runs to November 2026.
By type
Most recent
Show all 26
New York also had 12 statewide declarations that did not name single counties.
Storm history since 1965
Tornado risk by county ›The National Weather Service has logged 318 storm reports in Rockland County since 1965, with 2 deaths and 9 injuries and about $7.9 million in reported damage. The strongest on record here was an EF1 tornado on October 2, 2018 near Willow Grove.
Strongest tornadoes
| Date | Strength | Near | Hurt / killed |
|---|---|---|---|
| Oct 2, 2018 | EF1 | Willow Grove | 0 / 0 |
| Jul 12, 2006 | F1 | Grand View On Hudson | 0 / 0 |
| Oct 18, 1990 | F0 | – | 1 / 0 |
Most damaging storms
| Date | Type | Near | Damage |
|---|---|---|---|
| Sep 16, 1999 | Flash Flood | Countywide | $4M |
| Sep 1, 2021 | Flash Flood | Bear Mtn | $3M |
| Sep 27, 2003 | Heavy Rain | Spring Vly | $25K |
| Aug 10, 2009 | Thunderstorm Wind | Stony Pt | $25K |
| Oct 2, 2018 | Tornado | Willow Grove | $25K |
| Jul 8, 2025 | Thunderstorm Wind | Tallman | $15K |
Source: NOAA Storm Events Database, county-based reports through Jul 14, 2025. 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, 4 hurricanes and 19 tropical storms have passed within 65 miles of the center of Rockland County, 14 of them since 1950. The strongest was an unnamed hurricane in 1938, with top winds near 120 mph about 64 miles away.
Strongest storms nearby
| Date | Storm | Strength | Closest |
|---|---|---|---|
| Sep 21, 1938 | Unnamed | Category 3, 120 mph | 64 mi |
| Aug 24, 1893 | Unnamed | Category 1, 85 mph | 56 mi |
| Sep 27, 1985 | Gloria | Category 1, 85 mph | 54 mi |
| Sep 9, 1934 | Unnamed | Category 1, 75 mph | 64 mi |
| Aug 10, 1976 | Belle | Tropical storm, 70 mph | 52 mi |
| Jul 13, 1996 | Bertha | Tropical storm, 70 mph | 44 mi |
Most recent storms
| Date | Storm | Strength | Closest |
|---|---|---|---|
| Aug 4, 2020 | Isaias | Tropical storm, 65 mph | 59 mi |
| Jul 11, 2020 | Fay | Tropical storm, 40 mph | 53 mi |
| Aug 28, 2011 | Irene | Tropical storm, 65 mph | 59 mi |
| Sep 7, 2008 | Hanna | Tropical storm, 50 mph | 58 mi |
| Sep 16, 1999 | Floyd | Tropical storm, 60 mph | 47 mi |
| Jul 13, 1996 | Bertha | Tropical storm, 70 mph | 44 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 Rockland 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 Rockland 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; 108,945 housing units.
Compare in New York
All 62 ›| Largest counties | Overall risk | Top hazard |
|---|---|---|
| Kings County | Inland flooding | |
| Queens County | Inland flooding | |
| New York County | Inland flooding | |
| Suffolk County | Inland flooding | |
| Bronx County | Inland flooding | |
| Nassau County | Inland flooding | |
| Westchester County | Inland flooding | |
| Erie County | Inland flooding |
Neighboring counties
| County | Overall risk | Declarations |
|---|---|---|
| Westchester County | 28 | |
| Bergen County, NJ | 28 | |
| Passaic County, NJ | 26 | |
| Orange County | 32 | |
| Putnam County | 25 |
Cities in Rockland County
Common questions about Rockland County
What is the biggest natural hazard in Rockland County?
Inland flooding has the highest expected yearly losses in Rockland County, about $38 million a year in FEMA's estimate. Cold wave is second at $4.5 million.
How many federal disasters has Rockland County had?
Rockland County has been included in 26 federal disaster or emergency declarations for natural events since 1965, including 18 major disasters. The most recent was Severe Storms and Flooding in July 2023.
Is Rockland County a high-risk place to live?
Its overall rating is Relatively Moderate, 13th highest of 62 in New York. 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 Rockland County?
Standard home insurance does not cover flooding. About 1 in 77 homes in Rockland 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 Rockland County had?
NOAA records list 3 tornadoes in Rockland County since 1950. The strongest was an EF1 tornado on October 2, 2018 near Willow Grove. The weather service has also logged 37 hail reports and 114 floods here.
How many hurricanes have hit Rockland County?
NOAA's hurricane records show 4 hurricanes and 19 tropical storms passing within 65 miles of the center of Rockland County, including 1 major hurricane (Category 3 or stronger). The strongest was an unnamed hurricane in 1938, with winds near 120 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.