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Top 10 Largest California Wildfires (1)

Rank	Fire name (cause)	Date	County	Acres	Structures	Deaths
1	August Complex (Lightning)	August 2020	Mendocino, Humboldt, Trinity, Tehama, Glenn, Lake and Colusa	1,032,648	935	1
2	Dixie (Powerlines)	July 2021	Butte, Plumas, Lassen, Shasta and Tehama	963,309	1,311	1
3	Mendocino Complex (Human related)	July 2018	Colusa, Lake, Mendocino and Glenn	459,123	280	1
4	SCU Lightning Complex (Lightning)	August 2020	Stanislaus, Santa Clara, Alameda, Contra Costa and San Joaquin	396,625	225	0
5	Creek (Undetermined)	September 2020	Fresno and Madera	379,895	858	0
6	LNU Lightning Complex (Lightning/arson)	August 2020	Napa, Solano, Sonoma, Yolo, Lake and Colusa	363,220	1,491	6
7	North Complex (Lightning)	August 2020	Butte, Plumas and Yuba	318,893	2,352	15
8	Thomas (Powerlines)	December 2017	Ventura and Santa Barbara	281,893	1,060	2
9	Cedar (Human related)	October 2003	San Diego	273,246	2,820	15
10	Rush (Lightning)	August 2012	Lassen	271,911 (2)	0	0

(1) As of October 2022.
(2) In additon to the 271,911 acres in California, there were an addition 43,666 acres in Nevada.

Source: Calfire.

Top 10 Largest California Wildfires

Rank	Fire name and cause	Date	County	Acres	Structures	Deaths
1	Mendocino Complex (Under investigation)	July 2018	Colusa County, Lake County, Mendocino County and Glenn County	459,123	280	1
2	Thomas (Under investigation)	December 2017	Ventura and Santa Barbara	281,893	1,063	2
3	Cedar (Human related)	October 2013	San Diego	273,246	2,820	15
4	Rush (Lightning)	August 2012	Lassen	271,911 CA/43,666 NV	0	0
5	Rim (Human related)	August 2013	Tuolumne	257,314	112	0
6	Zaca (Human related)	July 2007	Santa Barbara	240,207	1	0
7	Carr (Human related)	July 2018	Shasta County, Trinity County	229,651	1,604	7
8	Matilija (Undetermined)	September 1932	Ventura	220,000	0	0
9	Witch (Powerlines)	October 2007	San Diego	197,990	1,650	2
10	Klamath Theater Complex (Lightning)	June 2008	Siskiyou	192,038	0	2

Source: CalFire.

Top 10 Largest California Wildfires (1)

Rank	Fire name and cause	Date	County	Acres	Structures	Deaths
1	Mendocino Complex (Under investigation)	July 2018	Colusa County, Lake County, Mendocino County and Glenn County	459,123	280	1
2	Thomas (Power lines)	December 2017	Ventura and Santa Barbara	281,893	1,063	2
3	Cedar (Human related)	October 2003	San Diego	273,246	2,820	15
4	Rush (Lightning)	August 2012	Lassen	271,911 CA/43,666 NV	0	0
5	Rim (Human related)	August 2013	Tuolumne	257,314	112	0
6	Zaca (Human related)	July 2007	Santa Barbara	240,207	1	0
7	Carr (Human related)	July 2018	Shasta County, Trinity County	229,651	1,604	8
8	Matilija (Undetermined)	September 1932	Ventura	220,000	0	0
9	Witch (Power lines)	October 2007	San Diego	197,990	1,650	2
10	Klamath Theater Complex (Lightning)	June 2008	Siskiyou	192,038	0	2

(1) As of August 8, 2019.

Source: CalFire.

Top 10 Largest California Wildfires (1)

Rank	Fire name (cause)	Date	County	Acres	Structures	Deaths
1	August Complex (Under investigation) (2)	August 2020	Mendocino, Humboldt, Trinity, Tehama, Glenn, Lake, and Colusa	1,032,264	935	1
2	Mendocino Complex (Under investigation)	July 2018	Colusa, Lake, Mendocino and Glenn	459,123	280	1
3	SCU Lightning Complex (Under investigation) (2)	August 2020	Stanislaus, Santa Clara, Alameda, Contra Costa, and San Joaquin	396,624	222	0
4	LNU Lightning Complex (Under investigation) (2)	August 2020	Sonoma, Lake, Napa, Yolo and Solano	363,220	1,491	6
5	Creek Fire (Under investigation) (2)	September 2020	Fresno and Madera	350,331	856	0
6	North Complex (Under investigation) (2)	August 2020	Butte, Plumas and Yuba	318,930	2,352	15
7	Thomas (Power lines)	December 2017	Ventura and Santa Barbara	281,893	1,063	2
8	Cedar (Human related)	October 2003	San Diego	273,246	2,820	15
9	Rush (Lightning)	August 2012	Lassen	271,911 CA/43,666 NV	0	0
10	Rim (Human related)	August 2013	Tuolumne	257,314	112	0

(1) As of October 20, 2020.
(2) Numbers not final.

Source: Calfire.

Top 10 Largest California Wildfires (1)

Rank	Fire name (cause)	Date	County	Acres	Structures	Deaths
1	August Complex (Under investigation) (2)	August 2020	Mendocino, Humboldt, Trinity, Tehama, Glenn, Lake, and Colusa	1,032,648	935	1
2	Mendocino Complex (Under investigation)	July 2018	Colusa, Lake,Mendocino and Glenn	459,123	280	1
3	SCU Lightning Complex (Under investigation) (2)	August 2020	Stanislaus, Santa Clara, Alameda, Contra Costa, and San Joaquin	396,624	222	0
4	Creek Fire (Under investigation) (2)	September 2020	Fresno and Madera	379,895	853	0
5	LNU Lightning Complex (Under investigation) (2)	August 2020	Sonoma, Lake, Napa, Yolo and Solano	363,220	1,491	6
6	North Complex (Under investigation) (2)	August 2020	Butte, Plumas and Yuba	318,935	2,352	15
7	Thomas (Power lines)	December 2017	Ventura and Santa Barbara	281,893	1,063	2
8	Cedar (Human related)	October 2003	San Diego	273,246	2,820	15
9	Rush (Lightning)	August 2012	Lassen	271,911 CA / 43,666 NV	0	0
10	Rim (Human related)	August 2013	Tuolumne	257,314	112	0

(1) As of April 28, 2021.
(2) Numbers not final.

Source: Calfire.

Top 10 Largest California Wildfires (1)

Rank	Fire name (cause)	Date	County	Acres	Structures	Deaths
1	August Complex (Lightning)	August 2020	Mendocino, Humboldt, Trinity, Tehama, Glenn, Lake, and Colusa	1,032,648	935	1
2	Dixie (Under investigation)	July 2021	Butte, Plumas, Lassen, Shasta, and Tehama	963,309	1,329	1
3	Mendocino Complex (Human related)	July 2018	Colusa, Lake,Mendocino and Glenn	459,123	280	1
4	SCU Lightning Complex (Lightning)	August 2020	Stanislaus, Santa Clara, Alameda, Contra Costa, and San Joaquin	396,624	222	0
5	Creek Fire (Undetermined)	September 2020	Fresno and Madera	379,895	853	0
6	LNU Lightning Complex (Lightning/arson)	August 2020	Sonoma, Lake, Napa, Yolo and Coluso	363,220	1,491	6
7	North Complex (Lightning)	August 2020	Butte, Plumas and Yuba	318,935	2,352	15
8	Thomas (Power lines)	December 2017	Ventura and Santa Barbara	281,893	1,063	2
9	Cedar (Human related)	October 2003	San Diego	273,246	2,820	15
10	Rush (Lightning)	August 2012	Lassen	271,911 CA / 43,666 NV	0	0

(1) As of October 25, 2021.

Source: Calfire.