Buying a Home

What should I know about buying in a flood zone?

By Bob Millaway July 26, 2026

Short Answer

Buying in a flood zone means you are required to purchase flood insurance, which costs $500 to $3,000 or more per year depending on the flood risk level. You need to know the property's flood zone designation, elevation, and flood history. Flood insurance is required by lenders if the home is in a designated Special Flood Hazard Area. Review FEMA flood maps and ask about the property's flood history before making an offer.

Flood zones are designated by FEMA based on the risk of flooding. Properties in designated Special Flood Hazard Areas (SFHAs), also known as 100-year flood zones, are required to carry flood insurance if they have a federally backed mortgage. Flood insurance costs vary based on the flood zone, the property's elevation, and the building's characteristics. In higher-risk zones, premiums can be $1,000 to $3,000 or more per year. Flood insurance is separate from homeowners insurance and covers damage from rising water, which standard policies do not cover. Even if a property is not in a designated flood zone, flood insurance may be worth considering. Heavy rain and flash flooding can affect areas outside mapped flood zones. Ask the seller for the property's flood history. Has the home ever flooded? What mitigation measures have been taken? Check the elevation certificate, which shows the home's elevation relative to the base flood elevation. Homes built above the base flood elevation have lower flood insurance costs.

Bob Millaway

Bob's Advice

Redfin Senior Agent · AI Certified Agent

Flood risk is a real concern in parts of South Jersey, especially near rivers and creeks. I will help you check the flood zone designation for any property you are considering and explain what flood insurance would cost. Do not let a flood zone scare you away from a property you love, but you need to know the numbers before you make an offer. Let us do the research together so there are no surprises.

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