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Sullivan County, New York

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

Relatively Low overall risk
24th of 62highest risk in New York
$37Mexpected losses a year
31federal declarations
1 in 125homes with flood insurance
Photo: U.S. Geological Survey, public domain

Sullivan County, New York has a relatively low overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 78% of US counties. It ranks 24th of 62 counties in New York. The costliest hazards here are inland flooding, cold waves and tornadoes. FEMA estimates about $37 million a year in expected losses, or roughly $465 per resident. Since 1965 it has been included in 31 federal disaster or emergency declarations for natural events (21 major disasters). The most recent was in September 2021 (remnants of hurricane ida). Fewer than 1 in 100 homes here carry federal flood insurance (354 policies). Since 1978, federal flood insurance has paid about $16 million on 945 claims here, including $8.9 million for floods in 2006.

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

Top risks in Sullivan County

$26.7 million a yearExpected losses. Damaging events about 2 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
$3.1 million a yearExpected losses. Damaging events about 4 times a year.
  • Insulate pipes in outside walls, crawl spaces and garages.
  • Know how to shut off the main water valve.

Tornado

Moderate
$2.5 million a yearExpected losses. Damaging events about once every 3 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 floodingModerate86.6
$27M
Cold waveModerate78.8
$3M
TornadoModerate71.3
$2M
HurricaneLow79.2
$2M
Strong windModerate64.9
$781K
EarthquakeLow68.3
$675K
LightningModerate75.3
$564K
Heat waveLow40.8
$222K
HailLow35.2
$138K
Winter weatherModerate64.0
$98K
Ice stormLow53.3
$92K
WildfireVery Low29.5
$13K
LandslideLow77.0
$10K
DroughtVery Low24.1
$9K
AvalancheVery Low36.0
$160

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 moderate and community resilience is relatively moderate in FEMA's measures.

Federal disaster history

Recent disasters nationwide ›

Declarations by decade

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

By type

Severe Storm12
Hurricane8
Snowstorm5
Flood4
Drought1
Fire1

Most recent

Sep 5, 2021Remnants of Hurricane IdaMajor disaster
Sep 2, 2021Remnants of Hurricane IdaEmergency
Aug 22, 2021Hurricane HenriEmergency
Jul 12, 2017Severe Winter Storm and SnowstormMajor disaster
Oct 30, 2012Hurricane SandyMajor disaster
Oct 28, 2012Hurricane SandyEmergency
Sep 8, 2011Remnants of Tropical Storm LeeEmergency
Aug 31, 2011Hurricane IreneMajor disaster
Aug 26, 2011Hurricane IreneEmergency
Dec 18, 2008Severe Winter StormEmergency
Show all 31
Jul 2, 2007Severe Storms and FloodingMajor disaster
Dec 12, 2006Severe Storms and FloodingMajor disaster
Jul 1, 2006Severe Storms and FloodingMajor disaster
Sep 30, 2005Hurricane Katrina EvacuationEmergency
Apr 19, 2005Severe Storms and FloodingMajor disaster
Oct 1, 2004Tropical Depression IvanMajor disaster
Oct 1, 2004Severe Storms and FloodingMajor disaster
Aug 3, 2004Severe Storms and FloodingMajor disaster
Aug 29, 2003Severe Storms, Flooding, and TornadoesMajor disaster
Mar 27, 2003SnowEmergency
Feb 25, 2003SnowstormsEmergency
Sep 11, 2001Fires and ExplosionsMajor disaster
Jul 21, 2000Severe Storms and FloodingMajor disaster
Jul 7, 1998Severe Storms and FloodingMajor disaster
Jan 24, 1996Severe Storms and FloodingMajor disaster
Jan 12, 1996Blizzard of 96 (Severe Snow Storm)Major disaster
Mar 17, 1993Severe BlizzardEmergency
Apr 17, 1984Coastal Storms & FloodingMajor disaster
Jul 20, 1973Severe Storms & FloodingMajor disaster
Aug 26, 1969Heavy Rains & FloodingMajor disaster
Aug 18, 1965Water ShortageMajor disaster

New York also had 12 statewide declarations that did not name single counties.

Storm history since 1957

Tornado risk by county ›

The National Weather Service has logged 563 storm reports in Sullivan County since 1957, with 4 deaths and 18 injuries and about $208 million in reported damage. The strongest on record here was an F2 tornado on May 9, 1961.

12tornadoes
119hail reports, largest 2.5 inches
337damaging thunderstorm winds
85floods and flash floods

Strongest tornadoes

DateStrengthNearHurt / killed
May 9, 1961F2–4 / 0
Jun 9, 1972F2–2 / 0
Apr 22, 2023EF2Jeffersonville0 / 0
Nov 16, 1989F1–0 / 0
Sep 28, 1996F1Monticello1 / 0

Most damaging storms

DateTypeNearDamage
Jun 27, 2006Flash FloodNorth Portion$100M
Nov 16, 1989Tornado–$25M
Aug 30, 2004Flash FloodWest Brookville$20M
Sep 18, 2004Flash FloodCountywide$15M
Jul 23, 2008Flash FloodRockland$15M
Apr 2, 2005Flash FloodCountywide$10M

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 1863, 2 hurricanes and 9 tropical storms have passed within 65 miles of the center of Sullivan County, 4 of them since 1950. The strongest was an unnamed hurricane in 1893, with top winds near 80 mph about 63 miles away.

2hurricanes
0major hurricanes (Category 3+)
9tropical storms
2020most recent: Isaias

Strongest storms nearby

DateStormStrengthClosest
Aug 24, 1893UnnamedCategory 1, 80 mph63 mi
Oct 23, 1878UnnamedCategory 1, 80 mph36 mi
Aug 4, 2020IsaiasTropical storm, 65 mph59 mi
Sep 16, 1903UnnamedTropical storm, 65 mph62 mi
Aug 29, 1893UnnamedTropical storm, 65 mph43 mi
Aug 28, 2011IreneTropical storm, 60 mph65 mi

Most recent storms

DateStormStrengthClosest
Aug 4, 2020IsaiasTropical storm, 65 mph59 mi
Aug 28, 2011IreneTropical storm, 60 mph65 mi
Sep 6, 1979DavidTropical storm, 45 mph57 mi
Sep 1, 1952AbleTropical storm, 60 mph65 mi
Aug 29, 1949UnnamedTropical storm, 55 mph24 mi
Sep 16, 1903UnnamedTropical storm, 65 mph62 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 Sullivan County

Check your address flood zone ›
0.8%of homes have federal flood insurance (354 policies)
13.5%of homes in mapped high-risk flood zones are insured
$16.2 millionpaid on 945 flood claims since 1978
2006costliest year, with $8.9 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 Sullivan County

$249,000median home value (New York $423,800, US $332,700)
1974median year homes were built (New York 1959, US 1980)
58%of homes built before 1980, before many modern wind, quake and flood building rules
8.8%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; 49,994 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
Orange CountyModerate32
Ulster CountyModerate33
Pike County, PALow16
Wayne County, PALow23
Delaware CountyModerate35

Common questions about Sullivan County

What is the biggest natural hazard in Sullivan County?

Inland flooding has the highest expected yearly losses in Sullivan County, about $26.7 million a year in FEMA's estimate. Cold wave is second at $3.1 million.

How many federal disasters has Sullivan County had?

Sullivan County has been included in 31 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 Sullivan County a high-risk place to live?

Its overall rating is Relatively Low, 24th 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 Sullivan County?

Standard home insurance does not cover flooding. About 1 in 125 homes in Sullivan 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 Sullivan County had?

NOAA records list 12 tornadoes in Sullivan County since 1950. The strongest was an F2 tornado on May 9, 1961. The weather service has also logged 119 hail reports and 85 floods here.

How many hurricanes have hit Sullivan County?

NOAA's hurricane records show 2 hurricanes and 9 tropical storms passing within 65 miles of the center of Sullivan County. The strongest was an unnamed hurricane in 1893, with winds near 80 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.