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Rockland County, New York

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

Relatively Moderate overall risk
13th of 62highest risk in New York
$60Mexpected losses a year
26federal declarations
1 in 77homes with flood insurance
Photo: Gary Miotla, CC BY 3.0

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

$38 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.

Cold wave

Moderate
$4.5 million a yearExpected losses. Damaging events about once a year.
  • Insulate pipes in outside walls, crawl spaces and garages.
  • Know how to shut off the main water valve.
$3.5 million a yearExpected losses. Damaging events about once every 600 years.
  • Ask whether an older house is bolted to its foundation.
  • Consider separate earthquake insurance where risk is high.
HazardRatingScoreExpected loss a year
Inland floodingModerate91.8
$38M
Cold waveModerate86.6
$4M
EarthquakeLow88.7
$4M
HurricaneModerate85.6
$3M
Strong windHigh97.0
$3M
TornadoModerate77.5
$3M
Heat waveModerate90.4
$3M
LightningHigh91.7
$1M
Coastal floodingModerate64.6
$597K
Winter weatherHigh94.8
$537K
Ice stormModerate78.0
$286K
HailVery Low15.0
$41K
DroughtVery Low21.7
$5K
WildfireVery Low14.6
$4K
LandslideVery Low61.5
$2K
AvalancheVery Low35.8
$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

Hurricane11
Flood5
Severe Storm5
Snowstorm3
Drought1
Fire1

Most recent

Jul 22, 2023Severe Storms and FloodingMajor disaster
Sep 5, 2021Remnants of Hurricane IdaMajor disaster
Sep 2, 2021Remnants of Hurricane IdaEmergency
Aug 22, 2021Hurricane HenriEmergency
Oct 2, 2020Tropical Storm IsaiasMajor disaster
Oct 30, 2012Hurricane SandyMajor disaster
Oct 28, 2012Hurricane SandyEmergency
Aug 31, 2011Hurricane IreneMajor disaster
Aug 26, 2011Hurricane IreneEmergency
Feb 18, 2011Severe Winter Storm and SnowstormMajor disaster
Show all 26
Apr 16, 2010Severe Storms and FloodingMajor disaster
Apr 24, 2007Severe Storms and Inland and Coastal FloodingMajor disaster
Sep 30, 2005Hurricane Katrina EvacuationEmergency
Aug 3, 2004Severe Storms and FloodingMajor disaster
Mar 27, 2003SnowEmergency
Sep 11, 2001Fires and ExplosionsMajor disaster
Sep 19, 1999Hurricane Floyd Major Disaster DeclarationsMajor disaster
Sep 18, 1999Hurricane Floyd Emergency DeclarationsEmergency
Jan 12, 1996Blizzard of 96 (Severe Snow Storm)Major disaster
Mar 17, 1993Severe BlizzardEmergency
Dec 21, 1992Coastal Storm, High Tides, Heavy Rain, & FloodingMajor disaster
Apr 17, 1984Coastal Storms & FloodingMajor disaster
Oct 2, 1975Storms, Rains, Landslides & FloodingMajor disaster
Jun 23, 1972Tropical Storm AgnesMajor disaster
Sep 13, 1971Severe Storms & FloodingMajor disaster
Aug 18, 1965Water ShortageMajor disaster

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.

3tornadoes
37hail reports, largest 2 inches
136damaging thunderstorm winds
114floods and flash floods

Strongest tornadoes

DateStrengthNearHurt / killed
Oct 2, 2018EF1Willow Grove0 / 0
Jul 12, 2006F1Grand View On Hudson0 / 0
Oct 18, 1990F0–1 / 0

Most damaging storms

DateTypeNearDamage
Sep 16, 1999Flash FloodCountywide$4M
Sep 1, 2021Flash FloodBear Mtn$3M
Sep 27, 2003Heavy RainSpring Vly$25K
Aug 10, 2009Thunderstorm WindStony Pt$25K
Oct 2, 2018TornadoWillow Grove$25K
Jul 8, 2025Thunderstorm WindTallman$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.

4hurricanes
1major hurricanes (Category 3+)
19tropical storms
2020most recent: Isaias

Strongest storms nearby

DateStormStrengthClosest
Sep 21, 1938UnnamedCategory 3, 120 mph64 mi
Aug 24, 1893UnnamedCategory 1, 85 mph56 mi
Sep 27, 1985GloriaCategory 1, 85 mph54 mi
Sep 9, 1934UnnamedCategory 1, 75 mph64 mi
Aug 10, 1976BelleTropical storm, 70 mph52 mi
Jul 13, 1996BerthaTropical storm, 70 mph44 mi

Most recent storms

DateStormStrengthClosest
Aug 4, 2020IsaiasTropical storm, 65 mph59 mi
Jul 11, 2020FayTropical storm, 40 mph53 mi
Aug 28, 2011IreneTropical storm, 65 mph59 mi
Sep 7, 2008HannaTropical storm, 50 mph58 mi
Sep 16, 1999FloydTropical storm, 60 mph47 mi
Jul 13, 1996BerthaTropical storm, 70 mph44 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 ›
1.3%of homes have federal flood insurance (990 policies)
49.8%of homes in mapped high-risk flood zones are insured
$45.4 millionpaid on 3,480 flood claims since 1978
2011costliest year, with $15.7 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 Rockland County

$596,900median home value (New York $423,800, US $332,700)
1971median year homes were built (New York 1959, US 1980)
66%of homes built before 1980, before many modern wind, quake and flood building rules
0.9%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; 108,945 housing units.

Compare in New York

All 62 ›
Largest countiesOverall riskTop hazard
Kings CountyHighInland flooding
Queens CountyHighInland flooding
New York CountyHighInland flooding
Suffolk CountyHighInland flooding
Bronx CountyHighInland flooding
Nassau CountyHighInland flooding
Westchester CountyHighInland flooding
Erie CountyHighInland flooding

Neighboring counties

CountyOverall riskDeclarations
Westchester CountyHigh28
Bergen County, NJHigh28
Passaic County, NJHigh26
Orange CountyModerate32
Putnam CountyVery Low25

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.