Washoe County, Nevada
Natural disaster risk, federal disaster history and flood insurance facts.
Washoe County, Nevada has a relatively high overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 97% of US counties. It ranks 2nd of 17 counties in Nevada. The costliest hazards here are earthquakes, inland flooding and wildfires. FEMA estimates about $274 million a year in expected losses, or roughly $563 per resident. Since 1965 it has been included in 52 federal disaster or emergency declarations for natural events (6 major disasters). The most recent was in October 2026 (Bull Fire). Fewer than 1 in 100 homes here carry federal flood insurance (1,357 policies). Since 1978, federal flood insurance has paid about $31 million on 754 claims here, including $17 million for floods in 1997.
FEMA National Risk Index December 2025; OpenFEMA declarations to Nov 6, 2026; NFIP records. Updated November 6, 2026.
Top risks in Washoe County
- Ask whether an older house is bolted to its foundation.
- Consider separate earthquake insurance where risk is high.
- 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.
- Clear dry plants and debris within 5 feet of the house.
- Get home insurance quotes early; availability varies by area.
All 18 hazards
What the ratings mean ›| Hazard | Rating | Score | Expected loss a year | |
|---|---|---|---|---|
| Earthquake | 99.2 | $160M | ||
| Inland flooding | 94.5 | $80M | ||
| Wildfire | 99.0 | $27M | ||
| Winter weather | 99.0 | $2M | ||
| Lightning | 90.9 | $1M | ||
| Strong wind | 71.0 | $1M | ||
| Avalanche | 84.4 | $1M | ||
| Heat wave | 58.4 | $610K | ||
| Ice storm | 80.7 | $490K | ||
| Hail | 59.0 | $413K | ||
| Drought | 50.5 | $169K | ||
| Tornado | 14.3 | $146K | ||
| Landslide | 90.1 | $65K | ||
| Volcanic activity | 78.5 | $344 | ||
| Cold wave | 2.2 | $0 |
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 relatively moderate in FEMA's measures.
Federal disaster history
Recent disasters nationwide ›Declarations by decade
Federal declarations for natural events that included Washoe County. 2020s bar runs to November 2026.
By type
Most recent
Show all 52
Nevada also had 23 statewide declarations that did not name single counties.
Storm history since 1957
Tornado risk by county ›The National Weather Service has logged 321 storm reports in Washoe County since 1957, with 1 death and 10 injuries and about $23.2 million in reported damage. The strongest on record here was an F1 tornado on July 16, 1973.
Strongest tornadoes
| Date | Strength | Near | Hurt / killed |
|---|---|---|---|
| Jul 16, 1973 | F1 | – | 1 / 0 |
| Nov 3, 1973 | F1 | – | 0 / 0 |
| Feb 28, 1988 | F0 | – | 0 / 0 |
| Feb 28, 1988 | F0 | – | 0 / 0 |
| Jul 30, 1998 | F0 | Black Spgs | 0 / 0 |
Most damaging storms
| Date | Type | Near | Damage |
|---|---|---|---|
| Jan 8, 2017 | Flood | Sutcliffe | $7M |
| Dec 31, 2005 | Flood | Verdi | $6M |
| Jun 19, 2026 | Flash Flood | Vista | $5M |
| Jul 27, 2025 | Flash Flood | Vya | $2M |
| Jun 21, 2002 | Flash Flood | Southwest Portion | $1M |
| Jan 8, 2017 | Flood | Cannon Arpt Ren | $1M |
Source: NOAA Storm Events Database, county-based reports through Jul 13, 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.
Flood insurance in Washoe 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 Washoe 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; 218,165 housing units.
Compare in Nevada
All 17 ›| Largest counties | Overall risk | Top hazard |
|---|---|---|
| Clark County | Inland flooding | |
| Washoe County | Earthquake | |
| Lyon County | Earthquake | |
| Carson City City | Earthquake | |
| Elko County | Wildfire | |
| Nye County | Inland flooding | |
| Douglas County | Earthquake | |
| Churchill County | Inland flooding |
Neighboring counties
| County | Overall risk | Declarations |
|---|---|---|
| Placer County, CA | 24 | |
| Nevada County, CA | 21 | |
| Lyon County | 12 | |
| Carson City City | 13 | |
| Lassen County, CA | 17 | |
| Churchill County | 5 | |
| Humboldt County | 6 | |
| Modoc County, CA | 15 |
Cities in Washoe County
Common questions about Washoe County
What is the biggest natural hazard in Washoe County?
Earthquake has the highest expected yearly losses in Washoe County, about $160 million a year in FEMA's estimate. Inland flooding is second at $80 million.
How many federal disasters has Washoe County had?
Washoe County has been included in 52 federal disaster or emergency declarations for natural events since 1965, including 6 major disasters. The most recent was Bull Fire in October 2026.
Is Washoe County a high-risk place to live?
Its overall rating is Relatively High, 2nd highest of 17 in Nevada. 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 Washoe County?
Standard home insurance does not cover flooding. About 1 in 125 homes in Washoe 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 Washoe County had?
NOAA records list 13 tornadoes in Washoe County since 1950. The strongest was an F1 tornado on July 16, 1973. The weather service has also logged 40 hail reports and 57 floods here.
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.