Question 1

Which county in Utah has the highest natural disaster risk?

Accepted Answer

Salt Lake County has the highest natural disaster risk score in Utah at 98.6 (Relatively High), based on FEMA National Risk Index data.

Question 2

Which county in Utah is the safest from natural disasters?

Accepted Answer

Rich County has the lowest natural disaster risk score in Utah at 0.8 (Very Low), based on FEMA NRI data.

Question 3

What natural disasters are most common in Utah?

Accepted Answer

Utah counties face varying levels of risk from floods, wildfires, tornadoes, earthquakes, and hurricanes. The FEMA National Risk Index scores each county across 18 hazard types. See individual county pages for detailed hazard breakdowns.

Question 4

How is natural disaster risk measured by county?

Accepted Answer

The FEMA National Risk Index (NRI) measures natural disaster risk using expected annual loss, social vulnerability, and community resilience. Scores are normalized nationally, with ratings from Very Low to Very High across 18 natural hazard types.

County	Risk Score	Rating	Flood	Wildfire	Tornado	Earthquake
Salt Lake County	98.6	Relatively High	92.9	98.3	71.0	99.6
Utah County	95.3	Relatively High	90.5	98.9	52.6	98.8
Washington County	92.8	Relatively Moderate	93.4	99.8	6.0	81.1
Davis County	87.8	Relatively Moderate	59.5	90.6	34.4	98.0
Weber County	87.0	Relatively Moderate	67.6	94.1	32.0	97.7
Cache County	66.5	Relatively Low	45.8	85.3	21.2	94.6
Iron County	61.4	Relatively Low	44.6	97.7	4.0	86.8
Summit County	60.1	Relatively Low	49.6	96.5	13.6	55.5
Box Elder County	55.9	Relatively Low	19.5	95.4	12.6	93.3
Tooele County	48.9	Relatively Low	18.3	97.3	13.6	83.6
Kane County	39.7	Very Low	56.4	88.0	1.6	37.9
Sanpete County	38.6	Very Low	24.5	89.0	12.5	83.4
Garfield County	37.6	Very Low	48.8	78.3	2.4	64.1
Wasatch County	33.5	Very Low	32.3	94.2	11.8	59.0
San Juan County	26.8	Very Low	24.0	82.3	5.4	55.7
Sevier County	22.7	Very Low	22.1	78.6	5.2	87.0
Millard County	22.2	Very Low	16.3	91.2	8.1	83.2
Juab County	15.3	Very Low	4.8	91.0	7.1	79.3
Beaver County	10.4	Very Low	8.0	85.3	1.7	74.4
Grand County	10.3	Very Low	25.4	58.6	5.0	32.7
Carbon County	8.7	Very Low	22.8	66.8	12.3	64.9
Duchesne County	7.6	Very Low	15.3	80.4	7.0	60.0
Emery County	7.0	Very Low	12.4	59.3	5.1	66.0
Uintah County	4.0	Very Low	10.3	71.4	9.6	56.9
Daggett County	3.7	Very Low	0.9	77.7	2.3	18.9
Morgan County	3.5	Very Low	10.7	84.1	5.6	32.9
Wayne County	1.9	Very Low	6.9	53.7	2.2	47.8
Piute County	0.9	Very Low	3.4	58.7	1.3	49.2
Rich County	0.8	Very Low	3.0	75.9	2.8	36.8

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