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Learn about the Wildland Urban Interface

The Wildland Urban Interface shows areas where homes and buildings are close to wildland and open spaces.

What is a Wildland Urban Interface area?

A Wildland Urban Interface (WUI) area is a place where homes or buildings are close to wildland. These areas can be at higher risk for damage from wildfires. 

How do we use WUI zone maps?

Periodically, we review and update our WUI maps. Studying WUI areas helps us:

  • Identify places to build fuel or fire breaks.
  • Plan for vegetation management and fuel reduction projects.

We first created the WUI zone maps to better understand the threats we face from wildfires. We use the WUI maps to inform our annual strategic plans. 

Find out if you live in a WUI area

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Page last updated on October 10, 2025.