Riverine Flood Risk in Missouri

All Missouri counties ranked by FEMA National Risk Index riverine flood score

Riverine Flood risk — rivers and streams overflowing their banks after heavy rain or snowmelt — is rated for 115 of 115 Missouri counties in FEMA's National Risk Index. St. Louis County carries the state's highest riverine flood score at 99.1, with $240M in expected annual riverine flood losses.

4 Missouri counties are rated High or Very High for riverine flood, and expected annual losses from riverine flood total roughly $1.57B statewide. The full ranking below links to each county's complete 18-hazard risk profile.

County Rankings — Riverine Flood

#CountyRiverine Flood ScoreRatingAnn. Freq.Ann. Loss
1 St. Louis County
99.1
High 2.79 / yr $240M
2 St. Louis City
97.0
High 1.29 / yr $91M
3 Jackson County
96.5
High 4.36 / yr $109M
4 St. Charles County
94.2
High 2.07 / yr $116M
5 Camden County
93.3
Medium 3.11 / yr $46M
6 Jefferson County
91.4
Medium 1.79 / yr $59M
7 Taney County
89.1
Medium 3.57 / yr $28M
8 Greene County
88.8
Medium 6.14 / yr $39M
9 Clay County
87.8
Medium 3.04 / yr $43M
10 Boone County
87.8
Medium 2.86 / yr $41M
11 Franklin County
85.4
Medium 1.68 / yr $32M
12 Jasper County
84.9
Medium 4.86 / yr $26M
13 Morgan County
82.7
Medium 3.32 / yr $14M
14 Newton County
80.0
Medium 5.43 / yr $18M
15 Howell County
79.6
Medium 5.39 / yr $15M
16 Barry County
79.4
Medium 4.82 / yr $17M
17 Butler County
79.1
Medium 3.57 / yr $17M
18 Cape Girardeau County
78.1
Medium 6.32 / yr $21M
19 Stone County
74.7
Medium 2.64 / yr $13M
20 McDonald County
73.7
Medium 3.93 / yr $16M
21 Cole County
73.5
Medium 1.36 / yr $20M
22 Cass County
70.5
Low 1.82 / yr $17M
23 St. Francois County
70.4
Low 1.00 / yr $12M
24 Lincoln County
70.3
Low 1.89 / yr $16M
25 Christian County
70.0
Low 3.43 / yr $18M
26 Wayne County
68.6
Low 3.75 / yr $7M
27 Buchanan County
68.5
Low 3.71 / yr $13M
28 Callaway County
68.4
Low 1.54 / yr $12M
29 Benton County
67.4
Low 3.46 / yr $8M
30 Lawrence County
67.2
Low 3.68 / yr $10M
31 Platte County
65.9
Low 2.68 / yr $18M
32 Clinton County
65.6
Low 0.68 / yr $13M
33 Iron County
64.5
Low 0.82 / yr $8M
34 Pulaski County
62.4
Low 2.50 / yr $13M
35 Wright County
62.3
Low 4.86 / yr $7M
36 Miller County
61.5
Low 2.82 / yr $9M
37 Laclede County
61.4
Low 3.43 / yr $9M
38 Warren County
61.2
Low 1.04 / yr $14M
39 Henry County
61.1
Low 5.11 / yr $7M
40 Carter County
60.6
Low 1.89 / yr $6M
41 Pettis County
60.3
Low 0.89 / yr $9M
42 Johnson County
59.7
Low 4.18 / yr $12M
43 Ripley County
59.4
Low 2.64 / yr $7M
44 Marion County
59.3
Low 1.25 / yr $10M
45 Saline County
58.5
Low 4.57 / yr $8M
46 Polk County
57.9
Low 3.96 / yr $7M
47 Audrain County
55.3
Low 1.32 / yr $6M
48 Madison County
54.3
Low 0.82 / yr $7M
49 Reynolds County
54.1
Low 0.89 / yr $6M
50 Washington County
52.6
Low 0.86 / yr $5M
51 Ste. Genevieve County
52.6
Low 0.71 / yr $9M
52 Phelps County
52.4
Low 2.68 / yr $7M
53 Nodaway County
51.0
Low 1.46 / yr $8M
54 Vernon County
49.8
Low 2.89 / yr $6M
55 Texas County
49.2
Low 3.14 / yr $5M
56 Scott County
49.0
Low 2.50 / yr $6M
57 Ray County
48.8
Low 1.68 / yr $6M
58 Montgomery County
47.9
Low 1.32 / yr $5M
59 Macon County
47.7
Low 1.04 / yr $6M
60 Crawford County
47.6
Low 1.25 / yr $6M
61 Osage County
47.5
Low 1.43 / yr $7M
62 Oregon County
46.4
Low 1.79 / yr $4M
63 Gasconade County
46.1
Low 1.21 / yr $7M
64 Shannon County
46.0
Low 2.96 / yr $4M
65 Barton County
45.9
Low 3.43 / yr $5M
66 Carroll County
45.4
Low 2.43 / yr $5M
67 Pike County
45.1
Low 1.00 / yr $6M
68 Lafayette County
44.3
Low 3.00 / yr $7M
69 Chariton County
44.1
Low 3.82 / yr $5M
70 Webster County
43.4
Low 4.39 / yr $6M
71 Dunklin County
42.7
Low 1.25 / yr $4M
72 Ozark County
42.0
Low 5.21 / yr $3M
73 Stoddard County
41.6
Low 1.79 / yr $4M
74 Bates County
39.5
Low 0.75 / yr $4M
75 Linn County
39.0
Low 0.57 / yr $4M
76 Dallas County
37.9
Low 3.00 / yr $4M
77 Randolph County
37.4
Low 0.50 / yr $5M
78 Lewis County
37.1
Low 1.46 / yr $4M
79 Daviess County
36.2
Low 1.50 / yr $3M
80 St. Clair County
35.8
Low 1.82 / yr $3M
81 Bollinger County
33.0
Very Low 2.14 / yr $4M
82 Dent County
32.7
Very Low 2.46 / yr $4M
83 Moniteau County
32.5
Very Low 1.18 / yr $4M
84 Hickory County
32.4
Very Low 2.36 / yr $3M
85 Perry County
32.1
Very Low 2.50 / yr $5M
86 Adair County
31.4
Very Low 1.11 / yr $4M
87 Clark County
30.5
Very Low 2.21 / yr $3M
88 Grundy County
30.2
Very Low 0.86 / yr $3M
89 Cooper County
29.9
Very Low 4.64 / yr $5M
90 Maries County
28.9
Very Low 2.39 / yr $3M
91 Harrison County
28.1
Very Low 0.50 / yr $2M
92 Dade County
27.7
Very Low 1.71 / yr $3M
93 Pemiscot County
27.5
Very Low 0.57 / yr $2M
94 Ralls County
27.2
Very Low 1.11 / yr $5M
95 Gentry County
27.1
Very Low 0.57 / yr $3M
96 Douglas County
27.0
Very Low 6.43 / yr $3M
97 Livingston County
26.4
Very Low 2.54 / yr $4M
98 Atchison County
25.6
Very Low 1.54 / yr $3M
99 Mississippi County
25.5
Very Low 1.50 / yr $2M
100 Cedar County
24.7
Very Low 1.36 / yr $2M
101 Andrew County
24.7
Very Low 0.96 / yr $4M
102 Monroe County
24.1
Very Low 1.00 / yr $3M
103 Knox County
23.3
Very Low 0.96 / yr $2M
104 Howard County
23.2
Very Low 3.07 / yr $3M
105 New Madrid County
22.6
Very Low 2.57 / yr $2M
106 Caldwell County
21.9
Very Low 0.46 / yr $2M
107 Holt County
21.7
Very Low 0.71 / yr $3M
108 DeKalb County
21.0
Very Low 0.57 / yr $3M
109 Scotland County
18.3
Very Low 1.00 / yr $1M
110 Mercer County
17.9
Very Low 0.39 / yr $2M
111 Shelby County
14.6
Very Low 0.96 / yr $2M
112 Sullivan County
12.4
Very Low 0.39 / yr $1M
113 Putnam County
10.1
Very Low 0.39 / yr $1M
114 Schuyler County
6.1
Very Low 0.43 / yr $688K
115 Worth County
4.6
Very Low 0.07 / yr $655K

115 Missouri counties with measurable riverine flood risk. See the national riverine flood ranking or all Missouri counties by overall risk.

Frequently Asked Questions

Which Missouri county has the highest riverine flood risk?

St. Louis County has the highest FEMA riverine flood risk score in Missouri at 99.1 (High), with $240M in expected annual losses and about 2.79 events per year.

How many Missouri counties face significant riverine flood risk?

115 Missouri counties record measurable riverine flood risk in FEMA's National Risk Index; 4 of them are rated High or Very High.

Other Hazards in Missouri

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