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Flood Zones

Find Your Flood Zone

The Federal Emergency Management Agency (FEMA) maps a community’s flood zones and identifies hazardous areas.

Find your property's flood zone designation and learn more about your flood risk by using the Sunnyvale Flood Zone Viewer

You can also contact City staff to find your flood zone:

  • Visit the One-Stop counter at 456 W. Olive Avenue
  • Call Public Works at 408-730-7415
  • Email Public Works

Special Flood Hazard Areas

There are certain areas of Sunnyvale which FEMA has designated as Special Flood Hazard Areas (SFHA). These areas are considered high risk for flooding.

  • SFHAs are subject to flood inundation from a 100-year flood (a 1% or greater chance of flooding in any given year).
  • SFHAs have special requirements for new construction or home remodeling.
  • All properties with a federally backed mortgage within an SFHA are required to purchase flood insurance.

The most current update to the FEMA flood insurance rate maps is dated May 18, 2009.

Search a FEMA map to find out if your property is in an SFHA

Flood Insurance

Standard property insurance does not cover losses from flooding. All Sunnyvale residents, including renters, can sign up for discounted flood insurance through the National Flood Insurance Program (NFIP). If you have a manufactured home or trailer review FEMA's Manufactured (Mobile) Home Requirements.

The City is a voluntary participant in the NFIP's Community Rating System program, and has secured a 15% discount on flood insurance policies for properties within the Special Flood Hazard Area.

Think about purchasing flood insurance proactively. When you purchase flood insurance, there is a 30-day mandatory waiting period before it goes into effect.

Flood Insurance Information for Realtors
Learn about NFIP flood insurance

To find a flood insurance agent, contact NFIP at 800-638-6620.

Last Updated: Oct 1, 2021