Is my house at risk of flooding?

Start with your FEMA flood zone: enter your address above and the National Flood Hazard Layer returns the mapped designation for that point. Zones beginning with A or V are high-risk Special Flood Hazard Areas with a 1% or greater annual chance of flooding. Zone X is minimal mapped risk — but roughly a quarter of U.S. flood insurance claims come from outside high-risk zones, so a favorable zone is not proof your house or garage is safe.

Every address in the United States sits in some FEMA flood zone — the question is which one. Use the lookup above to see whether your point falls inside a Special Flood Hazard Area (A, AE, AH, AO, AR, A99, V, VE), the 0.2% shaded X zone, minimal-risk Zone X, or unstudied Zone D. 'Not mapped' means FEMA has not studied the area, not that it is safe.

You live in a high-risk zone if your FEMA designation begins with A or V. Those are Special Flood Hazard Areas: a 1% or greater annual chance of flooding, which is about a 26% chance over the life of a 30-year mortgage. Federally backed mortgages in these zones require flood insurance.

A Special Flood Hazard Area is the land FEMA maps as having a 1% or greater annual chance of flooding — commonly called the 100-year floodplain or the base flood. SFHAs carry the A and V zone codes, trigger mandatory flood insurance on federally backed mortgages, and are where floodplain building requirements apply.

Zone X means FEMA maps your point outside the 1% and 0.2% floodplains. It is the lowest mapped category, not a guarantee. Flash flooding, urban drainage backup, and rainfall that exceeds the storm system all produce vehicle losses in Zone X every year, and those losses are usually uninsured because owners assumed the zone meant safety.

Under FEMA's Risk Rating 2.0, National Flood Insurance Program premiums are priced per property rather than by zone alone, so costs vary widely — factors include elevation, distance to water, foundation type, and rebuild cost. Get a quote from an NFIP-participating agent for your specific address. Note that standard flood policies cover buildings and contents, not vehicles; vehicles fall under comprehensive auto coverage.

A FEMA flood zone is a designation on the National Flood Hazard Layer that describes the mapped flood risk for a specific area. Zones starting with A or V are Special Flood Hazard Areas with a 1% or greater annual chance of flooding. Zone X is minimal mapped risk. Zone D means the area has not been studied.

Zone AE is a Special Flood Hazard Area with a 1% annual chance of flooding (the '100-year floodplain') where a Base Flood Elevation has been determined. Any vehicle stored at ground level in Zone AE is at direct risk during a mapped flood event.

No. Zone X means minimal FEMA-mapped risk — it does not mean flood-proof. Roughly 25% of flood insurance claims come from properties outside high-risk zones. Urban drainage failures, flash floods, and unmapped local flooding damage vehicles in Zone X every year.

FEMA flood maps are the U.S. legal standard but are widely acknowledged to under-represent current risk. Many maps are decades old, do not account for urban stormwater drainage capacity, and lag climate-driven changes in rainfall intensity. Treat a favorable FEMA zone as one input, not proof of safety.

Only if the policy includes comprehensive (other-than-collision) coverage. Many stored or seasonal collector policies exclude or limit flood claims, and agreed-value payouts on total losses rarely reflect what an irreplaceable car is worth to its owner. Read the policy carefully.

High risk: A, AE, AH, AO, AR, A99, V, VE. Moderate risk: Shaded X (the 0.2% or '500-year' floodplain). Minimal mapped risk: Zone X. Undetermined: Zone D. Coastal V and VE zones face wave action in addition to still-water flooding.

Yes for FEMA-mapped areas. The National Flood Hazard Layer covers nearly all of the U.S., but some rural and tribal areas have not been mapped — those return 'Not mapped', which is not the same as safe.

Yes. FloodVault protects against water arriving from any source — storm surge, atmospheric river, flash flood, snowmelt, or urban drainage backup — regardless of the FEMA designation. The mapped zone is a planning input; the vault is the physical defense.