Top counties by wildfire risk

Wildfire risk reflects expected annual losses to buildings, population, and agriculture from wildfire, adjusted for social vulnerability and community resilience. High scores cluster in the western US, where dry climate, fuel loads, and seasonal wind patterns combine with rapid suburban development into fire-prone terrain.

3,144 counties scored 4 rated Very High Showing top 50

#	County	State	NRI score	Rating	NOAA events 2016–2026
1	Riverside County	CA	100	Very High	0
2	San Diego County	CA	100	Very High	1
3	Los Angeles County	CA	99.9	Very High	0
4	San Bernardino County	CA	99.9	Very High	0
5	Elko County	NV	99.9	Relatively High	0
6	Orange County	CA	99.8	Relatively High	0
7	Ventura County	CA	99.8	Relatively High	0
8	Washington County	UT	99.8	Relatively High	0
9	Pima County	AZ	99.7	Relatively High	0
10	El Dorado County	CA	99.7	Relatively High	0
11	Kern County	CA	99.7	Relatively High	0
12	Kittitas County	WA	99.7	Relatively High	0
13	Maricopa County	AZ	99.6	Relatively High	0
14	Yavapai County	AZ	99.6	Relatively High	0
15	Chelan County	WA	99.6	Relatively High	0
16	Calaveras County	CA	99.5	Relatively High	0
17	Shasta County	CA	99.5	Relatively High	0
18	Jefferson County	CO	99.5	Relatively High	0
19	Coconino County	AZ	99.4	Relatively High	0
20	Madera County	CA	99.4	Relatively High	0
21	Nevada County	CA	99.4	Relatively High	0
22	Tuolumne County	CA	99.3	Relatively High	0
23	El Paso County	CO	99.3	Relatively High	0
24	Okanogan County	WA	99.3	Relatively High	0
25	Cochise County	AZ	99.2	Relatively High	0
26	Santa Barbara County	CA	99.2	Relatively High	0
27	Josephine County	OR	99.2	Relatively High	0
28	Gila County	AZ	99.1	Relatively High	0
29	Lake County	CA	99.1	Relatively High	0
30	Clark County	NV	99.1	Relatively High	0
31	Mariposa County	CA	99	Relatively High	0
32	Honolulu County	HI	99	Relatively High	0
33	Washoe County	NV	99	Relatively High	0
34	Jackson County	OR	99	Relatively High	0
35	Ravalli County	MT	98.9	Relatively High	0
36	Utah County	UT	98.9	Relatively High	0
37	Yakima County	WA	98.9	Relatively High	0
38	Mohave County	AZ	98.8	Relatively High	0
39	Navajo County	AZ	98.8	Relatively High	0
40	Lincoln County	NM	98.8	Relatively High	0
41	Monterey County	CA	98.7	Relatively High	0
42	Placer County	CA	98.7	Relatively High	0
43	Idaho County	ID	98.7	Relatively High	0
44	Plumas County	CA	98.6	Relatively High	0
45	Siskiyou County	CA	98.6	Relatively High	0
46	Roosevelt County	NM	98.6	Relatively High	0
47	Butte County	CA	98.5	Relatively High	0
48	Tehama County	CA	98.5	Relatively High	0
49	Trinity County	CA	98.5	Relatively High	0
50	Fresno County	CA	98.4	Relatively High	0

Source: FEMA National Risk Index v1.20.0, December 2025. Scores are 0–100 percentile rankings among all US counties — a score of 95 means this county's expected annual loss from wildfire exceeds 95% of all other counties. See the methodology page for definitions. Download the full CSV for all 3,144 scored counties.

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