Santa Cruz County, Arizona
Natural disaster risk, federal disaster history and flood insurance facts.
Santa Cruz County, Arizona 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 10th of 15 counties in Arizona. The costliest hazards here are inland flooding, heat waves and wildfires. FEMA estimates about $42 million a year in expected losses, or roughly $891 per resident. Since 1977 it has been included in 6 federal disaster or emergency declarations for natural events (4 major disasters). The most recent was in September 2005 (Hurricane Katrina Evacuation). About 1 in 56 homes here carry federal flood insurance (272 policies). Since 1978, federal flood insurance has paid about $1.3 million on 161 claims here, including $415,000 for floods in 1983.
FEMA National Risk Index December 2025; OpenFEMA declarations to Nov 6, 2026; NFIP records. Updated November 6, 2026.
Top risks in Santa Cruz 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.
- Check that cooling works before summer.
- Know where the nearest cooling center is.
- 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 | |
|---|---|---|---|---|
| Inland flooding | 87.4 | $18M | ||
| Heat wave | 99.0 | $16M | ||
| Wildfire | 98.1 | $8M | ||
| Lightning | 88.4 | $631K | ||
| Strong wind | 28.8 | $163K | ||
| Drought | 54.5 | $117K | ||
| Earthquake | 43.5 | $110K | ||
| Tornado | 8.7 | $30K | ||
| Hail | 9.9 | $18K | ||
| Winter weather | 18.9 | $10K | ||
| Landslide | 69.1 | $3K | ||
| Hurricane | 17.3 | $3K | ||
| Avalanche | 31.0 | $67 |
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 very high and community resilience is very low in FEMA's measures.
Federal disaster history
Recent disasters nationwide ›Declarations by decade
Federal declarations for natural events that included Santa Cruz County. 2020s bar runs to November 2026.
By type
Most recent
Arizona also had 40 statewide declarations that did not name single counties.
Storm history since 1974
Tornado risk by county ›The National Weather Service has logged 220 storm reports in Santa Cruz County since 1974, with 8 deaths and 13 injuries and about $13.4 million in reported damage. The strongest on record here was an EF0 tornado on May 9, 2012 near Nogales.
Strongest tornadoes
| Date | Strength | Near | Hurt / killed |
|---|---|---|---|
| May 9, 2012 | EF0 | Nogales | 0 / 0 |
Most damaging storms
| Date | Type | Near | Damage |
|---|---|---|---|
| Aug 24, 2007 | Flash Flood | Nogales | $10M |
| Sep 2, 2018 | Flash Flood | Amado | $750K |
| Jul 12, 2008 | Flash Flood | Nogales | $600K |
| Jun 29, 1996 | Thunderstorm Wind | Thatcher/Safford | $330K |
| Jul 20, 2017 | Flash Flood | Nogales | $250K |
| Aug 5, 2001 | Thunderstorm Wind | Rio Rico | $120K |
Source: NOAA Storm Events Database, county-based reports through Jul 27, 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 1992, 0 hurricanes and 1 tropical storm have passed within 65 miles of the center of Santa Cruz County, 1 of them since 1950. The strongest was Tropical Storm Lester (1992), with top winds near 45 mph about 39 miles away.
Strongest storms nearby
| Date | Storm | Strength | Closest |
|---|---|---|---|
| Aug 24, 1992 | Lester | Tropical storm, 45 mph | 39 mi |
Most recent storms
| Date | Storm | Strength | Closest |
|---|---|---|---|
| Aug 24, 1992 | Lester | Tropical storm, 45 mph | 39 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 Santa Cruz 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 Santa Cruz 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; 19,232 housing units.
Compare in Arizona
All 15 ›| Largest counties | Overall risk | Top hazard |
|---|---|---|
| Maricopa County | Inland flooding | |
| Pima County | Inland flooding | |
| Pinal County | Inland flooding | |
| Yavapai County | Inland flooding | |
| Mohave County | Inland flooding | |
| Yuma County | Earthquake | |
| Coconino County | Inland flooding | |
| Cochise County | Inland flooding |
Neighboring counties
| County | Overall risk | Declarations |
|---|---|---|
| Pima County | 13 | |
| Cochise County | 12 |
Common questions about Santa Cruz County
What is the biggest natural hazard in Santa Cruz County?
Inland flooding has the highest expected yearly losses in Santa Cruz County, about $17.6 million a year in FEMA's estimate. Heat wave is second at $15.8 million.
How many federal disasters has Santa Cruz County had?
Santa Cruz County has been included in 6 federal disaster or emergency declarations for natural events since 1977, including 4 major disasters. The most recent was Hurricane Katrina Evacuation in September 2005.
Is Santa Cruz County a high-risk place to live?
Its overall rating is Relatively Moderate, 10th highest of 15 in Arizona. 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 Santa Cruz County?
Standard home insurance does not cover flooding. About 1 in 56 homes in Santa Cruz 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 Santa Cruz County had?
NOAA records list 1 tornadoes in Santa Cruz County since 1950. The strongest was an EF0 tornado on May 9, 2012 near Nogales. The weather service has also logged 40 hail reports and 91 floods here.
How many hurricanes have hit Santa Cruz County?
NOAA's hurricane records show 0 hurricanes and 1 tropical storm passing within 65 miles of the center of Santa Cruz County. The strongest was Tropical Storm Lester (1992), with winds near 45 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.