Overview

A recent report from Neptune Flood highlights a concerning trend in California regarding flood insurance. Despite millions of properties being at risk of flooding, only a small fraction of homeowners have taken steps to protect themselves through insurance coverage.

The report reveals that California is home to approximately 2.3 million properties that face the threat of flooding over the next three decades, yet the penetration of residential flood insurance stands at a mere 1.4%.

Key details

  • 2.3 million properties in California are projected to be at risk of flooding in the next 30 years.
  • Only 1.4% of California homes currently have flood insurance.
  • Participation in the National Flood Insurance Program (NFIP) has decreased by 35% since 2016.
  • Flood risks are increasing due to atmospheric rivers, urban development, aging infrastructure, and post-wildfire conditions.
  • Modern flood modeling indicates that over 2.2 times more properties are at substantial flood risk than what FEMA flood maps show.
  • Nearly 600,000 properties at risk are located outside designated high-risk zones.
  • 45% of NFIP claims in California originate from areas outside FEMA-designated floodplains.
  • Only 34% of active NFIP policies are held by properties outside high-risk zones, which is lower than in Texas and Louisiana.
  • The top 10 counties in California account for nearly two-thirds of all NFIP losses since 1978.
  • Only 2.7% of residential properties in those top counties have flood insurance.
  • The NFIP’s residential building limit of $250,000 often falls short of actual rebuilding costs, which average between $750,000 and $800,000.
  • Average NFIP premiums in California have risen by over 33% since 2016 due to FEMA’s Risk Rating 2.0 implementation.

Context

The findings in the report underscore a significant gap in flood preparedness among California homeowners, particularly as flood threats evolve and expand beyond traditional flood-prone areas.

What happens next

As awareness of flood risks grows, it remains to be seen how homeowners and policymakers will respond to the urgent need for increased flood insurance coverage and improved infrastructure to mitigate these risks.

What we don't know yet

Details regarding specific regions most affected by the lack of flood insurance and the exact implications for homeowners are not confirmed.