Aerial view of forest fire showing flaming trees and smoke-filled air.

Wildfire

A Wildfire is an unplanned fire burning in natural or wildland areas such as forests, shrub lands, grasslands, or prairies.

In the National Risk Index, a Wildfire Risk Index score and rating represent a community's relative risk for Wildfires when compared to the rest of the United States. A Wildfire Expected Annual Loss score and rating represent a community's relative level of expected building and population loss each year due to Wildfires when compared to the rest of the United States.

A map of the United States colored by Wildfire Risk Index ratings. Wildfire risk is possible and prevalent across the United States with concentrated risk in western states and Florida. For full results, see the National Risk Index Map webpage.

Wildfire Exposure

A Wildfire exposure value represents a community's building value (in dollars) and population (in both people and population equivalence) exposed to Wildfires.

Wildfire Annualized Frequency

A Wildfire annualized frequency value represents the modeled frequency of Wildfire hazard occurrences (events) per year.

Wildfire Historic Loss Ratio

A Wildfire historic loss ratio is the representative percentage of the exposed consequence type value (building or population) expected to be lost due to a Wildfire hazard occurrence.

Wildfire Processing Methodology

For comprehensive details about the Wildfire processing methodology, see the National Risk Index Technical Documentation.