Significant Flood Risks in California and Insufficient Coverage

A recent report from Neptune Flood reveals significant flood risks facing millions of properties in California and highlights the lack of adequate insurance coverage among homeowners. The findings indicate that 2.3 million properties are projected to encounter flood risks in the next thirty years, yet only 1.4% of homeowners currently possess flood insurance. Notably, there has been a 35% decline in participation in the National Flood Insurance Program (NFIP) since 2016, despite the increasing flood threats.

Neptune Flood's analysis attributes exacerbated flood risks to atmospheric rivers, urban development, aging infrastructure, and post-wildfire conditions. These factors increase vulnerability statewide, even in areas not traditionally seen as flood-prone. The study highlights discrepancies between official flood maps and contemporary flood modeling, identifying over twice as many properties at risk of flooding compared to FEMA’s maps. This includes nearly 600,000 properties outside previously labeled high-risk zones.

The report underscores that a sizable portion of flood damage claims in California originate outside designated risk zones, with 45% of NFIP claims coming from these areas. However, only 34% of California’s active NFIP policies cover properties located beyond FEMA’s floodplain maps, a rate lower than other states like Texas and Louisiana.

A concentrated number of counties see the majority of flood losses, with the top ten counties accounting for nearly two-thirds of all NFIP losses since 1978. Despite this high exposure, only 2.7% of residences in these areas carry flood insurance, underscoring a significant protection gap.

Additionally, there is a disparity between insurance coverage limits and actual rebuilding costs. The NFIP’s coverage cap of $250,000 is often insufficient given California's median home values of $750,000 to $800,000. This shortfall highlights a need for better alignment with actual rebuilding expenses. Furthermore, flood insurance premiums have escalated by over 33% since 2016, partly due to FEMA's Risk Rating 2.0, intensifying the financial strain on homeowners.

"Flood risk in California is rising, but coverage is falling. Millions of homeowners are left exposed to a growing and often misunderstood threat. Bridging that gap will take broader access to modern flood insurance solutions, like those offered by the private market," stated Neptune Flood president Matt Duffy.