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Closing the Flood Insurance Gap
Updated October 16, 2024
There is a large flood insurance gap in the United States, where many people exposed to flood risk are not
covered by flood insurance. Early estimates suggest that very few people had flood insurance in areas
flooded by Hurricane Helene, perhaps 1%-2% or less in inland counties and 21% in coastal counties
affected by Helene.
The National Flood Insurance Program (NFIP) is the primary source of residential flood insurance. More
than 22,000 communities participate in the NFIP, with more than five million policies providing more
than $1.3 trillion in coverage. The NFIP identifies areas at high risk of flooding as Special Flood Hazard
Areas (SFHAs). Property owners are required to purchase flood insurance only if(1) their properties are
in SFHAs, (2) their communities participate in the NFIP, and (3) they have federally backed mortgages.
However, the SFHA boundary may create a false belief that flood risk changes abruptly at the boundary
and that properties outside the SFHA are safe and do not need flood insurance, but about 40% of NFIP
claims are for properties outside SFHAs.
The issue of high uninsured losses is not a new problem. For example, in the October 2015 South
Carolina floods, the average NFIP penetration rate in counties with a federal disaster declaration was 5%
(Table 1). Nearly 90% of policies in South Carolina were concentrated at the coast, but the flood damage
was primarily inland, where few residents were insured (Figure 1).
Congressional Research Service
https://crsreports.congress.gov
IN10890

CRS INSIGHT
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