As the risk of extreme weather grows across the U.S., homebuyers are reconsidering where they purchase property. In particular, homebuyers are thinking twice about purchasing a home in flood-prone areas, with a recent survey from real estate marketing platform Redfin showing that high-flood-risk counties lost 63,357 more residents than they gained in 2025. Compared with 2024—the first time in five years flood-prone counties posted a net outflow of residents–34,099 more residents moved out than in.

Meanwhile, areas that are at low-risk of flooding are gaining more residents. Low-flood-risk counties gained 69,857 more people than they lost in 2025.

Florida counties are seeing the most significant outflow of residents

Florida counties make up four of the 10 flood-prone places that lost the most residents in 2025. Miami-Dade County, where 36.3% of homes are at risk of flooding, topped the list. In 2025, net domestic outflow in Miami-Dade County was 72,254. Harris County, Texas, where Houston is located, had the second-biggest outflow of residents in 2025 at 43,377. In Harris County, 31.3% of homes are at risk of flooding.

Other counties that made up the top ten include Kings County, N.Y.; Hudson County, N.J.; Pinellas County, Fla.; Jefferson Parish, La.; Marin County, Calif.; Orleans Parish, La.; Collier County, Fla.; and Monroe County, Fla.

Climate risk is one of the top reasons Americans are moving

In a survey of 1,000 Americans who plan to move in the next 12 months, nearly one in six say that their top reason is concern over natural disasters or climate risk. Among people who have already experienced a natural disaster, 20% are moving because they’re concerned about natural disasters. This is the second-most common response after upgrading to a better home or neighborhood and is tied with wanting more space.