Landslide Risk in Illinois

All Illinois counties ranked by FEMA National Risk Index landslide score

Landslide risk — downhill movement of rock, soil, and debris on unstable slopes — is rated for 102 of 102 Illinois counties in FEMA's National Risk Index. Peoria County carries the state's highest landslide score at 94.8, with $115K in expected annual landslide losses.

No Illinois county reaches the High band for landslide, and expected annual losses from landslide total roughly $832K statewide. The full ranking below links to each county's complete 18-hazard risk profile.

County Rankings — Landslide

#CountyLandslide ScoreRatingAnn. Freq.Ann. Loss
1 Peoria County
94.8
Medium 0.28 / yr $115K
2 Jackson County
94.8
Medium 1.12 / yr $92K
3 Jo Daviess County
92.0
Medium 0.50 / yr $70K
4 Calhoun County
86.4
Low 0.41 / yr $44K
5 Madison County
85.6
Low 0.57 / yr $36K
6 Randolph County
85.1
Low 0.68 / yr $27K
7 St. Clair County
84.3
Low 0.46 / yr $28K
8 Rock Island County
84.0
Low 0.25 / yr $23K
9 Pike County
82.0
Low 0.61 / yr $21K
10 Jersey County
81.8
Low 0.34 / yr $32K
11 Monroe County
81.6
Low 0.46 / yr $34K
12 Fulton County
80.9
Low 0.61 / yr $18K
13 Schuyler County
79.4
Low 0.34 / yr $12K
14 Williamson County
79.3
Low 0.47 / yr $13K
15 Macoupin County
79.0
Low 0.49 / yr $13K
16 Brown County
78.6
Low 0.30 / yr $15K
17 Adams County
78.1
Low 0.43 / yr $14K
18 Carroll County
76.9
Low 0.16 / yr $10K
19 Clark County
76.7
Low 0.27 / yr $11K
20 Greene County
75.5
Low 0.31 / yr $11K
21 Tazewell County
75.3
Low 0.17 / yr $11K
22 Fayette County
73.1
Low 0.43 / yr $8K
23 Saline County
72.4
Low 0.33 / yr $5K
24 Hancock County
71.6
Low 0.27 / yr $6K
25 Knox County
70.8
Low 0.27 / yr $6K
26 Effingham County
70.7
Low 0.26 / yr $7K
27 Montgomery County
70.5
Low 0.27 / yr $6K
28 Jefferson County
70.1
Low 0.42 / yr $6K
29 LaSalle County
69.0
Low 0.21 / yr $5K
30 Mercer County
68.1
Low 0.24 / yr $8K
31 Bond County
67.4
Low 0.22 / yr $4K
32 Marion County
67.0
Low 0.37 / yr $4K
33 Woodford County
66.9
Low 0.13 / yr $8K
34 Coles County
66.6
Low 0.15 / yr $5K
35 Bureau County
66.4
Low 0.19 / yr $4K
36 Menard County
65.8
Low 0.09 / yr $4K
37 Perry County
65.6
Low 0.42 / yr $3K
38 White County
64.6
Low 0.30 / yr $3K
39 Marshall County
64.5
Low 0.10 / yr $4K
40 Henry County
64.4
Low 0.22 / yr $5K
41 Morgan County
64.2
Low 0.22 / yr $3K
42 Shelby County
63.5
Low 0.28 / yr $4K
43 Sangamon County
63.1
Low 0.22 / yr $4K
44 Vermilion County
62.6
Low 0.20 / yr $3K
45 McDonough County
61.5
Very Low 0.17 / yr $3K
46 Washington County
61.1
Very Low 0.33 / yr $3K
47 Cumberland County
60.6
Very Low 0.15 / yr $2K
48 Will County
59.4
Very Low 0.17 / yr $3K
49 Whiteside County
58.8
Very Low 0.15 / yr $2K
50 Scott County
57.9
Very Low 0.15 / yr $4K
51 McHenry County
57.2
Very Low 0.11 / yr $3K
52 Henderson County
56.6
Very Low 0.12 / yr $2K
53 Cook County
56.4
Very Low 0.14 / yr $2K
54 Clay County
55.9
Very Low 0.24 / yr $2K
55 Alexander County
55.6
Very Low 0.56 / yr $1K
56 Wayne County
55.5
Very Low 0.36 / yr $2K
57 Cass County
55.4
Very Low 0.14 / yr $2K
58 Jasper County
54.9
Very Low 0.22 / yr $3K
59 Union County
54.0
Very Low 1.53 / yr $1K
60 Richland County
53.6
Very Low 0.18 / yr $1K
61 Macon County
52.3
Very Low 0.12 / yr $1K
62 Stephenson County
52.3
Very Low 0.11 / yr $1K
63 Ogle County
51.3
Very Low 0.14 / yr $2K
64 Kane County
51.1
Very Low 0.09 / yr $2K
65 Winnebago County
50.7
Very Low 0.09 / yr $1K
66 Franklin County
50.3
Very Low 0.23 / yr $982
67 Warren County
49.8
Very Low 0.14 / yr $2K
68 McLean County
49.2
Very Low 0.20 / yr $2K
69 Hamilton County
49.0
Very Low 0.26 / yr $2K
70 Crawford County
48.9
Very Low 0.19 / yr $2K
71 Putnam County
47.4
Very Low 0.05 / yr $1K
72 Christian County
47.1
Very Low 0.16 / yr $1K
73 Lake County
46.7
Very Low 0.10 / yr $1K
74 Edwards County
46.5
Very Low 0.14 / yr $788
75 Edgar County
46.2
Very Low 0.16 / yr $1K
76 De Witt County
45.6
Very Low 0.08 / yr $1K
77 Lawrence County
45.2
Very Low 0.16 / yr $842
78 Clinton County
45.0
Very Low 0.21 / yr $1K
79 Champaign County
44.3
Very Low 0.17 / yr $964
80 Johnson County
44.0
Very Low 0.82 / yr $636
81 Wabash County
42.6
Very Low 0.12 / yr $721
82 Massac County
42.3
Very Low 0.31 / yr $645
83 Moultrie County
41.0
Very Low 0.08 / yr $516
84 Iroquois County
38.5
Very Low 0.18 / yr $610
85 Lee County
37.5
Very Low 0.11 / yr $635
86 Mason County
36.9
Very Low 0.10 / yr $480
87 Kendall County
36.2
Very Low 0.05 / yr $861
88 Pulaski County
36.1
Very Low 0.35 / yr $337
89 Kankakee County
35.1
Very Low 0.11 / yr $430
90 Livingston County
34.5
Very Low 0.16 / yr $464
91 Grundy County
33.9
Very Low 0.08 / yr $817
92 Logan County
33.3
Very Low 0.12 / yr $399
93 Piatt County
33.1
Very Low 0.08 / yr $443
94 DuPage County
33.0
Very Low 0.05 / yr $479
95 Pope County
33.0
Very Low 0.94 / yr $353
96 Hardin County
32.0
Very Low 0.73 / yr $307
97 DeKalb County
28.7
Very Low 0.09 / yr $304
98 Stark County
28.3
Very Low 0.06 / yr $315
99 Boone County
28.1
Very Low 0.04 / yr $291
100 Douglas County
26.6
Very Low 0.08 / yr $198
101 Ford County
16.3
Very Low 0.08 / yr $75
102 Gallatin County
14.3
Very Low 0.23 / yr $35

102 Illinois counties with measurable landslide risk. See the national landslide ranking or all Illinois counties by overall risk.

Frequently Asked Questions

Which Illinois county has the highest landslide risk?

Peoria County has the highest FEMA landslide risk score in Illinois at 94.8 (Medium), with $115K in expected annual losses and about 0.28 events per year.

How many Illinois counties face significant landslide risk?

102 Illinois counties record measurable landslide risk in FEMA's National Risk Index; 0 of them are rated High or Very High.

Other Hazards in Illinois

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