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Counties with the Highest Natural Hazard Risk in Colorado

The top 25 of 64 Colorado counties on GIS Map, ranked by FEMA National Risk Index score (0-100, national percentile).

#CountyRisk Index score
1Denver County
95.2
2Jefferson County
94.9
3El Paso County
94.1
4Arapahoe County
93.8
5Adams County
91.2
6Boulder County
90.7
7Larimer County
90.1
8Weld County
89.2
9Douglas County
88.7
10Pueblo County
82.5
11Eagle County
76.2
12La Plata County
75.2
13Mesa County
75.1
14Fremont County
68.6
15Garfield County
64.5
16Summit County
60.2
17Logan County
58.7
18Pitkin County
54.1
19Morgan County
51.9
20Delta County
51.3
21Chaffee County
51.1
22Otero County
50.7
23Grand County
50.2
24Montrose County
49.0
25Prowers County
48.6

Source: FEMA National Risk Index (December 2025). All counties with data are ranked. Estimates carry margins of error.

Citing this page: GIS Map, “Counties with the Highest Natural Hazard Risk in Colorado”, https://gismap.land/rankings/colorado/highest-risk-counties. Figures from FEMA National Risk Index (December 2025).

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