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2025 County Report

Fires in Humboldt County, CA

In 2025, fire departments serving Humboldt County responded to 988 fire and hazmat incidents — including a single $416K property loss. FEMA NRI rates wildfire risk here as Very High.

114,312 residents FIPS 06023 104 cities · 12 fire depts
Total incidents
988
6,106 across 5 years
Building fires
81
207 wildland
Property loss
$4.5M
$3.4M structure · $1.2M contents
Casualties
5 / 16
5 civ deaths · 10 civ inj · 6 FF inj
01 The mix

What kinds of fires happen here?

Unauthorized burning lead by count. Top five categories make up about 41% of all calls.

988
Total Incidents
Unauthorized burning 118 11.9%
Hazardous condition, other 85 8.6%
Building fires 81 8.2%
Brush, or brush and grass mixture fire 65 6.6%
Special outside fire, other 53 5.4%
All other categories 586 59.3%
02 Seasonality

When do fires happen in Humboldt County?

Aug peaks. Dec dips.

Jan 104
Feb 71
Mar 77
Apr 52
May 75
Jun 112
Jul 114
Aug 130
Sep 58
Oct 74
Nov 73
Dec 48
03 Five-year trend

Year over year in Humboldt County

6,106 incidents from 2021 through 2025.

YearIncidents 
2021 1,450
2022 1,455
2023 1,259
2024 954
2025 988
04 Cause of ignition

What sparks building fires?

For the 81 building fires departments responded to in 2025, here's how investigators classified them.

Unintentional
22%
78
Cause undetermined
36%
127
Intentional / arson
30%
108
Equipment / heat source failure
6%
22
Under investigation
5%
17
Act of nature (lightning)
1%
2
05 The biggest fires

10 fires · $2.0M in losses

Largest single-incident property losses in Humboldt County during 2025. These 10 fires alone account for 58% of the county's total.

#Property lossCityTypeSeverity
1 $416,370 Arcata Building fires Major
2 $300,000 Eureka Building fires Major
3 $227,528 REDWOODVALLEY Building fires Significant
4 $200,000 Ridgewoods Heights Building fires Significant
5 $200,000 Fortuna Building fires Significant
6 $150,000 Eureka Building fires Significant
7 $130,000 Arcata Passenger vehicle fire Significant
8 $125,000 Bridgeville Building fires Significant
9 $106,493 McKinleyville Building fires Significant
10 $104,093 Arcata Building fires Significant
06 How Humboldt County compares

Humboldt County vs CA vs the nation

Per-capita rates let us compare apples to apples.

8.64
Incidents per 1,000 residents
Humboldt County
8.64
CA avg
5.35
US avg
7.15
0.71
Building fires per 1,000 residents
Humboldt County
0.71
CA avg
0.33
US avg
0.82
43.7
Civilian fire deaths per million
Humboldt County
43.7
CA avg
2.9
US avg
5.8
07 Cities in this county

Largest cities in Humboldt County

12 cities mapped to FIPS 06023.

08 First responders

Busiest fire departments in Humboldt County

12 departments report from this county.

ARCATA FPD
—
FDID 12140 183 incidents
CDFHUMBOLDT
—
FDID 12555 139 incidents
FORTUNA FPD
—
FDID 12060 28 incidents
ORLEANS VFD
—
FDID 12087 13 incidents
PETROLIA FPD
—
FDID 12090 12 incidents
09 Historical wildfires

Largest fires recorded in CA

Top 10 fire perimeters by acres burned (state-scoped fallback while we build out per-county polygons).

#NameYearAgencyAcres
1 DIXIE 2021 USFS 963,309
2 DOE 2020 USFS 589,835
3 PARK 2024 CDF 429,602
4 Ranch 2018 USFS 410,202
5 Ranch 2018 BLM 410,200
6 CREEK 2020 USFS 379,881
7 HOPKINS 2020 USFS 328,621
8 Claremont 2020 USFS 318,776
9 Rush 2012 BLM 307,083
10 Rush 2012 BLM 306,810

About this data

County-level NFIRS aggregates for 2025, plus 5-year totals across 2021–2025. NFIRS is voluntary — about 23,000 of roughly 30,000 US fire departments report — so totals are a strong indicator, not a complete census. Wildfire risk score (0–100) and Expected Annual Loss come from FEMA's National Risk Index. Drought class is the most recent USDM classification (D0 = abnormally dry through D4 = exceptional drought). Historical fire perimeters are sourced from the NIFC InterAgency Fire Perimeter History.