Open data
for California

This is not a Natural Hazard Disclosure statement. Open state data, explained; flood and dam zones are not covered. Details

Is Lewiston in a fire hazard severity zone?

58.5% of Lewiston is mapped in a fire hazard severity zone, and 58.5% in High or Very High, where the seller disclosures apply.

Very High zone51.5% of the area
High zone7.0%
Moderate zone0.0%
Earthquake fault zone0.0%
Liquefaction zone0.0%
Landslide zone0.0%
Not evaluated for seismic hazards100.0%: a zero above proves nothing there
Fires recorded since 19505
Land area20.0 sq mi
Median home value (2019-2023)$328,900
Flood and dam zonesnot covered

Lewiston ranks 501 of 1050 California places for the share of land in High or Very High zones.

In land area, that is 10.32 sq mi Very High, 1.40 sq mi High, out of 20.02 sq mi. Its High and Very High share of 58.5% is 34.9 points above the 23.6% of Trinity County. The median home value of $328,900 is 0% below the county median of $329,000. Among 14 places in the county it ranks 4 for exposure; Trinity Center ranks first at 73.0%. The latest recorded fire is RUSH in 2025. By decade: 1990s: 2, 2000s: 1, 2010s: 1, 2020s: 1. The state has not evaluated Lewiston for liquefaction or landslides, so the absence of a seismic hazard zone proves nothing.

Zones differ from street to street: check the address above. In Trinity County overall, 23.0% of the land is Very High.

Fires recorded in or across Lewiston

The state record shows 5 since 1950. The largest was CARR in 2018 (229,651 acres in total).

Nearby places compared

All of Trinity County