Cortland County, New York
Natural disaster risk, federal disaster history and flood insurance facts.
Cortland County, New York has a relatively low overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 51% of US counties. It ranks 51st of 62 counties in New York. The costliest hazards here are inland flooding, tornadoes and cold waves. FEMA estimates about $17 million a year in expected losses, or roughly $366 per resident. Since 1975 it has been included in 15 federal disaster or emergency declarations for natural events (12 major disasters). The most recent was in August 2024 (severe storm, tornadoes and flooding). About 1 in 77 homes here carry federal flood insurance (219 policies). Since 1978, federal flood insurance has paid about $3.4 million on 358 claims here, including $1.2 million for floods in 2005.
FEMA National Risk Index December 2025; OpenFEMA declarations to Nov 6, 2026; NFIP records. Updated November 6, 2026.
Top risks in Cortland 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.
- 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.
- Insulate pipes in outside walls, crawl spaces and garages.
- Know how to shut off the main water valve.
All 18 hazards
What the ratings mean ›| Hazard | Rating | Score | Expected loss a year | |
|---|---|---|---|---|
| Inland flooding | 71.9 | $14M | ||
| Tornado | 37.4 | $781K | ||
| Cold wave | 36.7 | $588K | ||
| Strong wind | 32.6 | $333K | ||
| Hurricane | 59.2 | $194K | ||
| Lightning | 37.4 | $150K | ||
| Earthquake | 39.1 | $149K | ||
| Hail | 32.9 | $138K | ||
| Ice storm | 58.6 | $128K | ||
| Winter weather | 57.7 | $86K | ||
| Heat wave | 23.2 | $85K | ||
| Landslide | 65.7 | $4K | ||
| Wildfire | 9.9 | $3K | ||
| Avalanche | 32.7 | $134 |
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 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 Cortland County. 2020s bar runs to November 2026.
By type
Most recent
Show all 15
New York also had 12 statewide declarations that did not name single counties.
Storm history since 1969
Tornado risk by county ›The National Weather Service has logged 460 storm reports in Cortland County since 1969, with 0 deaths and 13 injuries and about $12.5 million in reported damage. The strongest on record here was an F1 tornado on June 2, 1998 near Cincinnatus.
Strongest tornadoes
| Date | Strength | Near | Hurt / killed |
|---|---|---|---|
| Jun 2, 1998 | F1 | Cincinnatus | 0 / 0 |
| Jul 31, 1992 | F1 | – | 0 / 0 |
| Aug 7, 2023 | EF1 | Harford | 0 / 0 |
| Jul 15, 2024 | EF0 | Virgil | 0 / 0 |
| Jul 5, 1992 | F0 | – | 0 / 0 |
Most damaging storms
| Date | Type | Near | Damage |
|---|---|---|---|
| Jan 19, 1996 | Flash Flood | Countywide | $6M |
| Apr 3, 2005 | Flash Flood | Countywide | $3M |
| Jul 14, 2017 | Flash Flood | Virgil | $450K |
| Sep 30, 2010 | Flash Flood | South Cortland | $370K |
| Jun 2, 1998 | Tornado | Cincinnatus | $150K |
| Aug 8, 2013 | Flash Flood | Munsons Corners | $100K |
Source: NOAA Storm Events Database, county-based reports through Jul 21, 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 1876, 0 hurricanes and 4 tropical storms have passed within 65 miles of the center of Cortland County, 1 of them since 1950. The strongest was an unnamed storm in 1903, with top winds near 55 mph about 57 miles away.
Strongest storms nearby
| Date | Storm | Strength | Closest |
|---|---|---|---|
| Sep 17, 1903 | Unnamed | Tropical storm, 55 mph | 57 mi |
| Sep 6, 1979 | David | Tropical storm, 45 mph | 56 mi |
| Sep 18, 1876 | Unnamed | Tropical storm, 45 mph | 61 mi |
| Aug 24, 1933 | Unnamed | Tropical storm, 45 mph | 60 mi |
Most recent storms
| Date | Storm | Strength | Closest |
|---|---|---|---|
| Sep 6, 1979 | David | Tropical storm, 45 mph | 56 mi |
| Aug 24, 1933 | Unnamed | Tropical storm, 45 mph | 60 mi |
| Sep 17, 1903 | Unnamed | Tropical storm, 55 mph | 57 mi |
| Sep 18, 1876 | Unnamed | Tropical storm, 45 mph | 61 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 Cortland 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 Cortland 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; 20,841 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 |
|---|---|---|
| Onondaga County | 15 | |
| Broome County | 26 | |
| Tompkins County | 16 | |
| Cayuga County | 15 | |
| Madison County | 20 | |
| Tioga County | 23 | |
| Chenango County | 27 |
Common questions about Cortland County
What is the biggest natural hazard in Cortland County?
Inland flooding has the highest expected yearly losses in Cortland County, about $14.5 million a year in FEMA's estimate. Tornado is second at $781,450.
How many federal disasters has Cortland County had?
Cortland County has been included in 15 federal disaster or emergency declarations for natural events since 1975, including 12 major disasters. The most recent was Severe Storm, Tornadoes, and Flooding in August 2024.
Is Cortland County a high-risk place to live?
Its overall rating is Relatively Low, 51st 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 Cortland County?
Standard home insurance does not cover flooding. About 1 in 77 homes in Cortland 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 Cortland County had?
NOAA records list 7 tornadoes in Cortland County since 1950. The strongest was an F1 tornado on June 2, 1998 near Cincinnatus. The weather service has also logged 61 hail reports and 69 floods here.
How many hurricanes have hit Cortland County?
NOAA's hurricane records show 0 hurricanes and 4 tropical storms passing within 65 miles of the center of Cortland County. The strongest was an unnamed storm in 1903, with winds near 55 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.