What Flood Zone Am I In? – Check By Address
Enter any address and see your home’s FEMA flood zone in seconds — your SFHA status and whether flood insurance is required. Free, instant, no phone calls, no signup.
Free Flood Zone Lookup
Enter any address – see your FEMA flood zone instantly
Get your full flood & property risk report
Enter your email to see what your zone means for flood insurance, plus your home’s full property risk — storm & hail exposure, roof, and radon — with what each factor means, on the next screen.
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How it works
Enter an Address
Type any US property address into the form above.
We Look Up Your FEMA Flood Zone
We geocode your address and check it against FEMA’s National Flood Hazard Layer — the same flood maps insurers and lenders use — to find your flood zone.
See Your Zone & What It Means
Instantly see your flood zone, whether it’s a high-risk Special Flood Hazard Area (SFHA), and whether flood insurance is federally required — plus your home’s full property risk.
Why your flood zone matters
Your FEMA flood zone decides whether flood insurance is required, how much it costs, and how much risk your home actually carries — and standard homeowners policies do not cover flood damage. If your address sits in a high-risk Special Flood Hazard Area (SFHA), a federally backed mortgage legally requires flood insurance. This free tool checks your address against FEMA’s flood maps in seconds — no phone calls and no signup.
How homeowners use their flood zone lookup
Know if you’re in a flood zone: See your FEMA zone and whether it’s a high-risk SFHA
Check the insurance requirement: High-risk zones require flood insurance on a federally backed mortgage
Budget before you buy: Flood zone drives premium cost — check it before closing on a home
See your full picture: Pair your flood risk with storm, roof, and radon risk for the whole property
Understanding FEMA flood zones
- Zones A & AE (high-risk / SFHA): A 1%+ annual chance of flooding. Flood insurance is required with a federally backed mortgage.
- Zones V & VE (coastal high-risk): High-risk areas with added wave hazard along the coast. Insurance required.
- Zone X (moderate-to-low risk): Outside the high-risk SFHA. Insurance is optional but often still recommended — over 20% of flood claims come from lower-risk zones.
- Zone D (undetermined): Flood risk has not been analyzed for the area.
A note on accuracy
This is a free lookup against FEMA’s public National Flood Hazard Layer — a confident starting point, not an official Letter of Map Amendment or an elevation certificate. Zone boundaries can run through a single parcel, and your official rating for insurance is set by your insurer and your property’s elevation. Confirm the details that affect your premium with FEMA or your insurer.
This product uses the Federal Emergency Management Agency’s OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency’s website(s).
Frequently asked questions
How do I find out what flood zone I’m in?
Enter your address in the form above. We check it against FEMA’s National Flood Hazard Layer — the official flood maps — and instantly show your flood zone (like AE, X, or VE), whether it’s a high-risk Special Flood Hazard Area, and what that means for flood insurance. It’s free and takes seconds.
What is a Special Flood Hazard Area (SFHA)?
An SFHA is a high-risk flood zone — FEMA zones beginning with A or V — with at least a 1% annual chance of flooding (the “100-year floodplain”). If your home is in an SFHA and you have a federally backed or federally regulated mortgage, flood insurance is legally required.
Do I need flood insurance in my zone?
If your address is in a high-risk zone (an SFHA, e.g. zones A, AE, V, or VE) and you have a federally backed mortgage, flood insurance is required. In moderate-to-low-risk zones (like Zone X) it’s optional — but more than 20% of flood claims come from those zones, so many owners carry it anyway. Standard homeowners insurance never covers flood damage.
What do flood zone codes like AE, X, and VE mean?
Zones A and AE are high-risk inland areas (1%+ annual flood chance). Zones V and VE are high-risk coastal areas with added wave action. Zone X is moderate-to-low risk, outside the high-risk floodplain. Zone D means the risk is undetermined. High-risk (A/V) zones are the ones that trigger the flood-insurance requirement.
Is this an official FEMA flood determination?
No. This is a free lookup against FEMA’s public National Flood Hazard Layer — a fast, accurate starting point, but not an official flood zone determination, Letter of Map Amendment, or elevation certificate. Because zone lines can cross a single parcel, confirm the details that set your insurance premium with FEMA or your insurer.
What addresses are covered?
We cover US addresses within FEMA’s mapped flood-hazard areas. A small number of properties fall outside FEMA’s digital coverage — if we can’t determine a zone for your address, we’ll tell you rather than guess, and save your info in case coverage expands.
Is this really free?
Yes. The flood zone lookup is completely free — no credit card and no hidden fees. Enter your email to also get your home’s full property risk report (flood, storm, roof, and radon) at no cost; a deeper paid report is offered but never required.
How do I use BuildFolio’s free flood zone lookup?
Enter any US property address in the form above — no signup or account required. The tool checks FEMA’s flood maps and instantly shows your flood zone, your SFHA (high-risk) status, and whether flood insurance is required. Results appear in seconds.
Ready to check your flood zone?
Get your free FEMA flood zone lookup by address — your zone, SFHA status, and flood-insurance requirement — in seconds. No signup.
Check My Flood Zone