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Wildfire hazard zones in Lassen County

Lassen County has Very High Fire Hazard Severity Zones on both state and locally governed land. Very High reaching incorporated areas is the part that matters for insurance: it means the hazard is not confined to the rural edge, and ordinary in-town addresses can carry it.

32,581

Residents

06035

FIPS code

Very High

Highest zone present

Zones recorded here

Where	Who sets the zone	Classes present
State Responsibility Area	CAL FIRE	Very HighHighModerate
Local Responsibility Area	The local fire authority	Very High

Do not assume a town address is outside the zone. Check the specific property: two houses on the same street can fall in different zones, and the answer decides both what an insurer sees and which mitigation work is worth documenting first.

These are the classes that occur somewhere in the county, not a measure of how much of it they cover. The state service returns whole zone polygons that intersect the county boundary rather than polygons clipped to it, so any share-of-area figure derived from it would overcount. We would rather publish nothing than a number we cannot stand behind.

Check a specific address

Zone boundaries do not follow parcel lines, so the county answer is not the property answer. This returns the Fire Hazard Severity Zone and FEMA flood zone for one address, read live from the state and federal services.

What the zone changes

CAL FIRE maps describe hazard. Insurers use their own risk models and eligibility requirements; the map does not decide coverage or price. It describes the land rather than the house: a well-prepared home and a neglected one on the same street sit in the same zone. What separates them, in an insurer's eyes, is documented mitigation — the Safer from Wildfires measures California requires insurers to recognise, and the evidence that the work was actually done.

Start with what a Fire Hazard Severity Zone is, or read how CertiDwell puts a file together.

Sources. Hazard classes from CAL FIRE's statewide Fire Hazard Severity Zone service; county boundary, FIPS and population from the California state boundaries service. Snapshot taken August 19, 2026. Zones are revised periodically — the address check above reads the live service rather than this page's snapshot.