Floodplain maps are one tool that communities can use to know which areas have the highest risk of flooding. The maps help people make decisions about where to live, what to build, and how to reduce flood risks. Property owners, insurance agents, and lenders can use flood maps to determine flood insurance requirements and policy costs.
King County conducts flood studies using the latest data and technology to produce more accurate floodplain maps. These maps are submitted to the Federal Emergency Management Agency (FEMA) for adoption.
Contact the King County River and Floodplain Management Section for help with:
- Confirming if a property is within a Federal Emergency Management Agency (FEMA) mapped Special Flood Hazard Area (SFHA), or flood prone area identified by King County.
- Finding flood insurance rating information such as FIRM zone, panel number, suffix, panel date and index date.
- Finding FEMA elevation certificates, if available.
- Determining what regulatory requirements may apply to a specific property.
- Finding information on past flood damage to a property, if available.
Call 206-477-4812 or email firstname.lastname@example.org.