Type in any Louisville or Southern Indiana address below and you'll see its FEMA flood zone in a few seconds. You also get a plain-English explanation of what that zone means for flood insurance, your mortgage and your offer.

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The lookup reads FEMA's National Flood Hazard Layer, the same flood map data lenders and insurance agents start from. It's a fast first check. It is not an official flood determination, so use the "official FEMA map" link in your result if you need the paperwork.

How to read your result

• Zone AE, A, AH or AO (high risk): the property is in a Special Flood Hazard Area, the "100-year floodplain." That means at least a 1% chance of a flood in any year, which works out to about a 26% chance over a 30-year mortgage. If you get a federally backed mortgage, your lender will require flood insurance.
• Floodway (high risk): the floodway is the channel that carries floodwater. Building, adding on or filling in is tightly restricted here, so check with MSD (the Metropolitan Sewer District, which runs Louisville's floodplain program) before you buy.
• Zone X, shaded (moderate risk): the "500-year floodplain," about a 0.2% chance each year. Lenders usually don't require flood insurance, but it's worth a quote.
• Zone X with a levee note (reduced risk): Louisville's floodwall and levee system protects the area. Risk is lower, not zero.
• Zone X, unshaded (minimal risk): FEMA's lowest-risk mapping. Flood insurance isn't required, but heavy rain, sewer backups and low spots can still put water in a basement.
• Zone D (undetermined): FEMA hasn't studied the area. Ask questions and get a quote.

Why this matters before you make an offer

A flood zone can change the math on a house fast. If it's in a high-risk zone, your lender will require flood insurance, and that premium becomes part of your monthly payment just like property taxes. I've watched buyers fall in love with a house, write an offer, and then find out about a flood insurance bill they never budgeted for. Check the zone first.

• Get a flood insurance quote before you write the offer, not after. Ask your insurance agent for both a National Flood Insurance Program (NFIP) quote and a private flood quote.
• New NFIP policies usually have a 30-day waiting period, but one bought when you close on a mortgage can start at closing. Line it up early.
• Ask the seller for an elevation certificate, a survey document that shows how high the house sits compared to expected flood levels. It can lower a quote.
• Read the seller's disclosure closely. Kentucky's seller disclosure form asks about flooding and water problems, and your home inspector should look for signs of past water.
• If part of the lot is in a zone and the house isn't, your lender's official flood determination decides whether insurance is required. A survey helps settle it.

Selling a house in a flood zone?

You can absolutely sell it. Buyers just need the facts up front. Having the elevation certificate, any flood insurance history and a clean disclosure ready keeps a deal from falling apart in the middle. If the house has actual flood damage, read selling a fire, storm or flood damaged house in Kentucky first.

Keep going

• Louisville flood zones: what home buyers need to know
• Radon in Kentucky homes, the other hidden issue buyers ask about
• Kentucky mortgage calculator, so you can add a flood premium to your monthly payment
• All free Winner Realty tools

Looking at a house near a creek, the river or a low spot? Text or email me the address and I'll pull what I can on it before you sign anything.

Louisville flood zone FAQ

How do I find out if a house is in a flood zone in Louisville?

Type the address into the lookup at the top of this page. It checks FEMA's flood map and tells you the zone in plain English. For an official map, use the FEMA Flood Map Service Center link in your result.

Is flood insurance required in Louisville?

Only in some cases. If the house is in a high-risk zone (A or AE) and you have a federally backed mortgage, your lender will require it. In Zone X it's optional, but it's often worth a quote.

What does Zone AE mean?

Zone AE is a high-risk flood area where FEMA has set a base flood elevation. It has at least a 1% chance of flooding every year.

What does Zone X mean?

Zone X is moderate to minimal flood risk. Shaded Zone X is the 500-year floodplain. Unshaded Zone X is FEMA's lowest-risk mapping. Lenders usually don't require flood insurance in Zone X.

Can I get flood insurance on a house in Zone X?

Yes. Anyone can buy flood insurance, and it usually costs less outside high-risk zones. FEMA says more than 20% of flood insurance claims come from outside high-risk areas.

Is this lookup an official flood determination?

No. It's a quick check based on FEMA's public flood map data. Lenders order a formal flood zone determination, and maps change over time, so confirm before you close.