Flood damage is not covered by standard homeowners insurance in Arizona. To protect against the financial fallout from flooding, Arizona homeowners will need to add a flood endorsement to their home insurance or buy a separate flood policy.
Despite Arizona’s dry climate, flooding is a significant risk across the state. During monsoon season, intense rainfall can overwhelm hard, compacted desert soil that doesn’t absorb water easily. Instead of soaking into the ground, rainwater pools quickly and can flow into homes in just minutes. For this reason, flood insurance is worth considering — especially if you live near a river, a desert wash, or in an area that rarely sees standing water.
Does homeowners insurance cover flooding in Arizona?
No, a standard Arizona homeowners insurance policy excludes flooding. According to the Arizona Department of Insurance and Financial Institutions (DIFI), a flood is generally defined as water originating outside the home that enters at ground level, including:
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Heavy rainfall that pools around your property
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Storm runoff that flows into your home
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Overflowing washes or drainage channels
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Rising water from canals, rivers, or other bodies of water
Although homeowners insurance does not cover damage from natural flooding, it may cover other types of water damage, such as sudden and accidental incidents like:
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A burst pipe
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A roof leak from wind-driven rain
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A dishwasher that suddenly overflows
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Vandalism
Why flood insurance matters in Arizona
Flood risk doesn't stop at the edge of a designated flood zone. Over the past 10 years, 32% of National Flood Insurance Program flood claims have come from outside high-risk areas. And Arizona's monsoons, desert washes and wildfire scars mean the risk is spread across the state.
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Monsoon season (June to September): During this period, fast-moving thunderstorms can produce intense rainfall in a short time, which can run off the surface of compacted soil rather than soak into the ground. Flash flooding may develop quickly and inundate homes and businesses within minutes.
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Desert washes and arroyos: Many Arizona communities contain these normally dry channels, which can carry large amounts of water during storms. Even if your home is not located in a high-risk flood zone, it may still experience flooding when stormwater is funneled through these natural drainage corridors.
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Wildfire burn scars: Wildfires remove vegetation that normally absorbs moisture and limits runoff. Burned soil often repels water, increasing the likelihood of flash flooding and debris flows after storms. According to the Arizona Department of Water Resources, burn scars increase flood risk for at least a decade following a wildfire, especially for properties located downhill or downstream.
Flood insurance vs. FEMA disaster assistance
FEMA disaster assistance is not a substitute for flood insurance. It only becomes available after a presidential disaster declaration, which is never guaranteed. It comes in two forms: grants that don't need to be repaid and low-interest loans that do. Either way, the distributed amounts are modest and may fall well short of what it costs to rebuild your home or replace your belongings.
Flood insurance, by contrast, doesn't require a disaster declaration. If you have a policy and your home floods due to a covered cause, you can file a claim.
How flood insurance works in Arizona
You can get flood insurance in Arizona from private insurers by adding flood coverage to your home policy through an endorsement (if available) or by purchasing a separate policy. Alternatively, you can buy a policy through the National Flood Insurance Program (NFIP).
Private flood insurance
Flood insurance in Arizona may be available through certain private insurers. Private policies can offer broader coverage and may cost less, especially for properties outside high-risk flood zones.
You might want to consider private flood insurance if you need:
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Building coverage limits above $250,000 — private insurers can go up to $1 million or more
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Replacement cost coverage for personal property, which pays what it actually costs to replace your belongings rather than their used value
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Additional living expenses, meaning help covering lodging and meals, if a flood leaves your home uninhabitable
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Coverage that typically kicks in before the NFIP's standard 30-day waiting period
The National Flood Insurance Program
FEMA-administered, federally backed NFIP policies are available to homeowners, renters, and business owners in participating communities throughout Arizona.
NFIP policies offer homeowners:
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Up to $250,000 in building coverage
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Up to $100,000 in contents coverage
Most NFIP policies include a 30-day waiting period before coverage takes effect. Waiting until a storm is forecast or the monsoon season starts can leave your home uninsured if flooding occurs.
How much does flood insurance cost in Arizona?
How much flood insurance costs in Arizona depends on your property’s flood risk and coverage needs. The average NFIP policy here costs $760 per year.
Flood zones are FEMA's way of classifying how much flood risk a given area carries. They still affect mortgage requirements, but they're no longer the primary factor in the amount you pay for NFIP coverage. Under FEMA's Risk Rating 2.0 system, the cost of coverage (called premiums) are based on your property's specific characteristics, including:
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Distance to canals, rivers, or washes
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Property elevation
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Home characteristics
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Construction and foundation type
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Coverage limits and deductibles (the amount you pay out of pocket on a claim)
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Participation in FEMA's Community Rating System (CRS), which can lower your premium
Is flood insurance required in Arizona?
Arizona doesn’t require flood insurance, but you’ll need it if you have a federally backed mortgage and your home is in a Special Flood Hazard Area (SFHA) — high-risk A, AE, and VE flood zones.
Even if you don’t live in an SFHA, you may benefit from coverage due to Arizona’s monsoon flooding, extensive wash systems, and wildfire-related runoff risks.
You can find your flood zone through FEMA’s Flood Map Service Center.
How to buy flood insurance in Arizona
FEMA doesn’t sell NFIP flood policies directly. You’ll need to buy an NFIP or private flood insurance policy from a licensed Arizona insurance agent.
Premiums can vary, so compare NFIP and private flood insurance quotes to find the best deal. Don’t wait for monsoon season to start — most flood policies have a waiting period, though private insurer wait periods are often shorter than the NFIP’s 30-day period.
Tip: Even if you’re not in a designated flood zone, a nearby wildfire can increase flood risk for years. Consider coverage before the next rainy season.
How to prevent flood damage in Arizona
The following steps can help prevent or reduce flood damage in Arizona:
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Keep drainage areas clear
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Direct water away from your foundation
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Avoid building or storing items in washes and arroyos
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Install flood barriers or sandbags to divert water from doors and garages when flooding is forecasted
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Elevate critical home systems, such as HVAC equipment and water heaters
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Monitor weather alerts during monsoon season
Frequently asked questions
How much does flood insurance cost in Arizona?
According to FEMA, the average cost of flood insurance in Arizona is $760 per year. Rates vary depending on your location, coverage choices, home characteristics, and elevation. Contact an Arizona-licensed insurance agent to get a personalized quote for your specific property.
Is there flood insurance in Arizona?
Yes. Arizona homeowners can buy private and NFIP flood insurance from Arizona insurance agents. NFIP flood insurance policies are available in participating communities statewide. Find coverage and more flood insurance resources from the Arizona Department of Insurance and Financial Institutions (DIFI) and FloodSmart.gov.
What is the 100-year flood rule?
A 100-year flood, or 1% annual chance flood, doesn’t mean flooding happens once every 100 years. It means there’s a 1% chance of flooding each year, or a 26% chance over a 30-year mortgage term. Properties in the 100-year floodplain are also in a Special Flood Hazard Area (SFHA) and need flood insurance if financed with a federally backed loan.
What does $250,000 building coverage on a flood policy mean?
Building coverage on a flood policy helps repair or rebuild your home’s structure after a flood, including built-in appliances, floors, walls, foundation, and major systems (e.g., electrical and plumbing). The NFIP caps residential building coverage limits at $250,000. If you have higher coverage needs, you can supplement with private flood insurance. Content coverage is sold separately on NFIP policies.
