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Natural Resources Program

 County Flood Plans and Insurance

Thurston County has adopted plans to protect residents and property from flooding. We also participate in the Federal Emergency Management Agency’s (FEMA) flood insurance program which allows County property owners in unincorporated areas to get flood insurance at some of the lowest rates available (PDF) in the U.S.


Flood Hazard Mitigation Plan  (PDF). Read more and see the annual updates

Natural Hazards Mitigation Plan  (PDF, Chapter 4.3)

The Comprehensive Emergency Management Plan (PDF)

Hazard Identification and Vulnerability Analysis  (PDF)


If you have property in unincorporated Thurston County, you may qualify for a discount on flood insurance. Thurston County is rated Class 2 in FEMA’s National Flood Insurance (NFIP) Community Rating System because our flood planning, reduction and education efforts exceed FEMA’s minimum requirements. This rating provides a 40 percent discount on NFIP premiums for property in special flood hazard areas, and 10 percent for properties outside those areas in unincorporated parts of the County. The rating was Class 4 until October 2016. Only two other communities in Washington have this rating, Pierce and King counties.

  • Use our Flood Hazard Area Map to see if your property is in a flood area
  • NFIP is available through most insurance carriers. Contact your agent for a quote.
  • NFIP offers coverage even if you’re in a flood plain or have previously filed a claim.
  • Learn more about NFIP on its website, www.floodsmart.gov
  • Learn more about the Community Rating System in FEMA’s fact sheet  (PDF)

Links to More County Flood Services & Information

Flood alerts & warnings

Sign up for alerts

Prepare for a flood

Building codes for flood areas

Flood bulletin

Report flooding

Sandbag distribution


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