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Highest risk cities in Utah

Highest air quality risk cities in Utah

Ranked city list for poor air quality and smoke stress, based on 332/332 eligible cities evaluated. Open any city to view local risk details and live outlook context.

P85-based state reference

AQI score

27/100

Updated Fri, Sep 25, 5:41 PM.

332/332 eligible cities evaluated

Open air quality outlook Browse all UT cities

More state ranking pages

Highest overall weather risk cities Highest flood risk cities Highest wind risk cities Highest lightning risk cities Highest wildfire risk cities Highest tornado risk cities

National comparisons:

Which state has the highest hurricane risk? →Which states have the highest AQI risk? →Which states have the highest wildfire risk? →Safest states for severe weather →States with the lowest flood exposure →

Ranked cities

Top 25 cities by aqi score from 332 evaluated locations.

Open any city for full details

#1

Castle Valley, UT

38 points above the state reference

#2

La Sal, UT

38 points above the state reference

#3

Thompson Springs, UT

38 points above the state reference

#4

Green River, UT

27 points above the state reference

#5

Altamont, UT

13 points above the state reference

#6

Ballard, UT

13 points above the state reference

#7

Bluebell, UT

13 points above the state reference

#8

Fort Duchesne, UT

13 points above the state reference

#9

Myton, UT

13 points above the state reference

#10

Neola, UT

13 points above the state reference

#11

Randlett, UT

13 points above the state reference

#12

Roosevelt, UT

13 points above the state reference

#13

Whiterocks, UT

13 points above the state reference

#14

Duchesne, UT

12 points above the state reference

#15

Taylorsville, UT

5 points above the state reference

#16

Big Water, UT

3 points above the state reference

#17

North Salt Lake, UT

3 points above the state reference

#18

West Bountiful, UT

3 points above the state reference

#19

Woods Cross, UT

3 points above the state reference

#20

American Fork, UT

1 points above the state reference

#21

Cottonwood Heights, UT

1 points above the state reference

#22

Holladay, UT

1 points above the state reference

#23

Lindon, UT

1 points above the state reference

#24

Midvale, UT

1 points above the state reference

#25

Millcreek, UT

1 points above the state reference

How this ranking works

Rankings use HomeRiskIQ weather risk data across332/332 eligible cities evaluated.

Scores are normalized to a 0-100 scale. The state benchmark is a p85-based state reference, not an arithmetic average.

City entries link to hazard-specific pages where available, otherwise to the city overview.