Riverine Flood Risk in Texas

All Texas 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 254 of 254 Texas counties in FEMA's National Risk Index. Harris County carries the state's highest riverine flood score at 100.0, with $1.12B in expected annual riverine flood losses.

16 Texas counties are rated High or Very High for riverine flood, and expected annual losses from riverine flood total roughly $4.94B 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 Harris County
100.0
Very High 5.14 / yr $1.12B
2 Bexar County
99.7
Very High 7.46 / yr $365M
3 Dallas County
99.6
Very High 4.61 / yr $324M
4 Tarrant County
99.1
High 5.36 / yr $258M
5 Travis County
98.3
High 5.46 / yr $214M
6 Fort Bend County
97.6
High 1.68 / yr $169M
7 Collin County
96.8
High 2.11 / yr $153M
8 El Paso County
96.8
High 3.96 / yr $70M
9 Comal County
96.6
High 3.93 / yr $118M
10 Hidalgo County
96.4
High 2.25 / yr $55M
11 Denton County
95.7
High 3.11 / yr $119M
12 Montgomery County
95.6
High 1.68 / yr $94M
13 Guadalupe County
95.6
High 2.89 / yr $100M
14 Brazoria County
94.4
High 1.86 / yr $78M
15 Galveston County
93.6
High 2.93 / yr $63M
16 Nueces County
93.3
High 4.43 / yr $44M
17 Hays County
93.2
Medium 3.75 / yr $68M
18 Cameron County
92.8
Medium 2.50 / yr $32M
19 Lubbock County
92.1
Medium 2.25 / yr $47M
20 Jefferson County
91.3
Medium 3.11 / yr $32M
21 Williamson County
91.3
Medium 3.64 / yr $71M
22 Webb County
91.0
Medium 2.64 / yr $25M
23 Gonzales County
90.4
Medium 2.96 / yr $26M
24 Bell County
89.2
Medium 3.07 / yr $38M
25 DeWitt County
89.2
Medium 3.57 / yr $22M
26 McLennan County
88.9
Medium 2.29 / yr $29M
27 Val Verde County
87.3
Medium 3.89 / yr $20M
28 Caldwell County
87.1
Medium 2.64 / yr $24M
29 Bastrop County
86.2
Medium 2.50 / yr $27M
30 Lavaca County
85.8
Medium 3.61 / yr $23M
31 Kerr County
85.2
Medium 2.75 / yr $18M
32 Smith County
84.9
Medium 2.00 / yr $21M
33 Wilson County
84.4
Medium 2.29 / yr $23M
34 Ellis County
83.5
Medium 2.04 / yr $24M
35 Brazos County
82.8
Medium 1.18 / yr $19M
36 Taylor County
82.8
Medium 2.25 / yr $23M
37 Llano County
82.5
Medium 2.36 / yr $14M
38 Burnet County
82.3
Medium 2.39 / yr $15M
39 Uvalde County
82.3
Medium 3.57 / yr $16M
40 Ector County
81.7
Medium 3.93 / yr $20M
41 Johnson County
80.9
Medium 2.50 / yr $23M
42 Wichita County
80.8
Medium 0.96 / yr $18M
43 Midland County
80.5
Medium 4.32 / yr $22M
44 Grayson County
79.5
Medium 2.18 / yr $19M
45 Bandera County
79.3
Medium 3.36 / yr $12M
46 Orange County
78.5
Medium 2.36 / yr $17M
47 Medina County
77.2
Medium 3.04 / yr $13M
48 Gregg County
76.8
Medium 1.82 / yr $15M
49 Tom Green County
76.7
Medium 2.86 / yr $14M
50 Kaufman County
76.4
Medium 1.96 / yr $20M
51 Nacogdoches County
75.6
Medium 1.61 / yr $12M
52 Kendall County
75.1
Medium 2.75 / yr $17M
53 San Patricio County
73.8
Medium 2.54 / yr $11M
54 Maverick County
73.1
Medium 1.64 / yr $8M
55 Brown County
73.0
Medium 1.89 / yr $12M
56 Henderson County
72.9
Low 1.36 / yr $10M
57 Washington County
72.7
Low 1.25 / yr $10M
58 Starr County
72.4
Low 1.50 / yr $8M
59 Parker County
72.4
Low 1.50 / yr $17M
60 Erath County
72.1
Low 1.14 / yr $14M
61 Hunt County
71.7
Low 2.25 / yr $13M
62 Victoria County
71.2
Low 1.93 / yr $12M
63 Wharton County
69.8
Low 0.93 / yr $9M
64 Anderson County
69.7
Low 1.21 / yr $9M
65 Liberty County
69.0
Low 1.50 / yr $10M
66 Bowie County
68.9
Low 1.86 / yr $10M
67 Angelina County
68.7
Low 1.86 / yr $10M
68 Real County
68.5
Low 2.75 / yr $7M
69 Navarro County
68.3
Low 2.07 / yr $9M
70 Gillespie County
68.1
Low 3.04 / yr $10M
71 Potter County
68.0
Low 2.04 / yr $9M
72 Zavala County
67.0
Low 1.61 / yr $6M
73 Randall County
66.9
Low 2.61 / yr $13M
74 Cooke County
66.8
Low 1.61 / yr $10M
75 Hardin County
66.7
Low 1.25 / yr $11M
76 Walker County
65.9
Low 1.25 / yr $9M
77 Waller County
65.6
Low 0.79 / yr $9M
78 Fayette County
64.8
Low 2.25 / yr $9M
79 Polk County
63.8
Low 1.04 / yr $7M
80 Karnes County
63.8
Low 2.64 / yr $6M
81 Harrison County
63.5
Low 1.61 / yr $8M
82 Jim Wells County
63.3
Low 1.71 / yr $6M
83 Coryell County
63.1
Low 1.54 / yr $10M
84 Lamar County
62.4
Low 1.07 / yr $8M
85 Hood County
61.9
Low 1.32 / yr $10M
86 Rockwall County
61.3
Low 0.71 / yr $15M
87 Atascosa County
61.0
Low 2.57 / yr $6M
88 San Jacinto County
61.0
Low 1.32 / yr $6M
89 Wise County
60.0
Low 1.82 / yr $9M
90 Palo Pinto County
59.9
Low 1.46 / yr $7M
91 Matagorda County
59.4
Low 1.00 / yr $7M
92 Wood County
59.3
Low 1.32 / yr $6M
93 Cherokee County
59.2
Low 1.54 / yr $7M
94 Tyler County
59.1
Low 0.75 / yr $6M
95 Upshur County
58.9
Low 0.86 / yr $7M
96 Hopkins County
58.0
Low 1.36 / yr $8M
97 Austin County
57.7
Low 1.04 / yr $7M
98 Kimble County
55.4
Low 1.18 / yr $5M
99 Kleberg County
55.3
Low 1.64 / yr $5M
100 Jackson County
55.3
Low 0.93 / yr $6M
101 Jasper County
55.0
Low 1.07 / yr $5M
102 Comanche County
54.7
Low 1.04 / yr $5M
103 Van Zandt County
53.6
Low 1.21 / yr $7M
104 Milam County
51.7
Low 1.71 / yr $4M
105 Blanco County
51.4
Low 2.39 / yr $7M
106 Colorado County
51.0
Low 0.93 / yr $5M
107 Aransas County
50.8
Low 1.61 / yr $5M
108 Limestone County
49.6
Low 1.96 / yr $4M
109 Chambers County
47.8
Low 1.21 / yr $11M
110 Freestone County
47.0
Low 1.04 / yr $4M
111 Frio County
46.6
Low 2.50 / yr $3M
112 Hill County
45.9
Low 1.32 / yr $5M
113 Rusk County
45.9
Low 1.18 / yr $5M
114 Howard County
45.4
Low 2.25 / yr $4M
115 Shelby County
45.1
Low 1.18 / yr $4M
116 Panola County
44.3
Low 0.86 / yr $4M
117 Hale County
43.4
Low 1.04 / yr $4M
118 Eastland County
43.2
Low 1.04 / yr $4M
119 Lampasas County
41.9
Low 0.89 / yr $4M
120 Trinity County
40.3
Low 0.89 / yr $3M
121 Bosque County
40.3
Low 1.39 / yr $4M
122 Houston County
40.0
Low 1.07 / yr $3M
123 Cass County
39.9
Low 0.75 / yr $3M
124 Bee County
39.8
Low 1.79 / yr $3M
125 Jones County
39.7
Low 1.07 / yr $4M
126 Leon County
39.4
Low 0.79 / yr $4M
127 Calhoun County
39.1
Low 1.18 / yr $4M
128 Robertson County
37.3
Low 0.82 / yr $3M
129 Fannin County
36.5
Low 1.71 / yr $4M
130 Yoakum County
36.4
Low 0.46 / yr $2M
131 Grimes County
35.3
Low 1.29 / yr $3M
132 Young County
34.9
Very Low 1.14 / yr $4M
133 Burleson County
34.9
Very Low 0.61 / yr $3M
134 Brewster County
33.7
Very Low 2.29 / yr $3M
135 Sabine County
32.9
Very Low 0.68 / yr $3M
136 Titus County
31.9
Very Low 0.75 / yr $3M
137 Reeves County
31.5
Very Low 1.32 / yr $3M
138 Willacy County
30.9
Very Low 1.25 / yr $2M
139 Montague County
30.7
Very Low 0.75 / yr $3M
140 Gaines County
30.4
Very Low 1.89 / yr $2M
141 Nolan County
29.3
Very Low 0.96 / yr $2M
142 Newton County
29.1
Very Low 0.82 / yr $2M
143 Duval County
28.6
Very Low 1.11 / yr $2M
144 Martin County
28.6
Very Low 0.93 / yr $3M
145 Ward County
27.1
Very Low 0.57 / yr $2M
146 Marion County
26.0
Very Low 0.21 / yr $2M
147 Mason County
25.4
Very Low 0.96 / yr $2M
148 Live Oak County
25.3
Very Low 1.71 / yr $2M
149 Hockley County
24.8
Very Low 1.46 / yr $2M
150 Gray County
24.6
Very Low 0.50 / yr $3M
151 Morris County
24.2
Very Low 0.39 / yr $2M
152 Falls County
24.1
Very Low 0.96 / yr $2M
153 Madison County
23.8
Very Low 0.86 / yr $2M
154 Camp County
23.7
Very Low 0.39 / yr $2M
155 Scurry County
23.6
Very Low 1.64 / yr $2M
156 Pecos County
23.5
Very Low 2.86 / yr $2M
157 Runnels County
23.4
Very Low 0.89 / yr $2M
158 La Salle County
23.4
Very Low 0.96 / yr $2M
159 Jim Hogg County
23.2
Very Low 0.50 / yr $1M
160 Coleman County
22.6
Very Low 0.96 / yr $2M
161 Hutchinson County
21.4
Very Low 0.68 / yr $2M
162 Lee County
21.0
Very Low 1.71 / yr $2M
163 Crockett County
20.8
Very Low 1.29 / yr $3M
164 Somervell County
20.1
Very Low 0.64 / yr $4M
165 Zapata County
19.9
Very Low 1.14 / yr $1M
166 Goliad County
19.9
Very Low 1.00 / yr $2M
167 Dimmit County
19.4
Very Low 1.71 / yr $1M
168 Sutton County
19.1
Very Low 1.07 / yr $2M
169 Dawson County
18.8
Very Low 1.46 / yr $2M
170 Stephens County
18.7
Very Low 0.71 / yr $2M
171 Lamb County
18.6
Very Low 0.64 / yr $2M
172 Refugio County
18.2
Very Low 1.39 / yr $1M
173 Mitchell County
18.2
Very Low 1.64 / yr $2M
174 Presidio County
18.1
Very Low 0.64 / yr $1M
175 Brooks County
18.0
Very Low 0.54 / yr $1M
176 Edwards County
17.8
Very Low 2.93 / yr $1M
177 Hamilton County
17.1
Very Low 1.00 / yr $2M
178 Franklin County
17.0
Very Low 0.68 / yr $2M
179 San Augustine County
17.0
Very Low 0.61 / yr $1M
180 McCulloch County
16.8
Very Low 1.11 / yr $2M
181 Baylor County
15.6
Very Low 0.46 / yr $1M
182 Dallam County
14.9
Very Low 0.14 / yr $2M
183 San Saba County
14.9
Very Low 0.93 / yr $2M
184 Clay County
14.2
Very Low 0.46 / yr $2M
185 Callahan County
13.9
Very Low 0.86 / yr $1M
186 Bailey County
13.6
Very Low 0.79 / yr $973K
187 Wilbarger County
13.5
Very Low 0.50 / yr $1M
188 Deaf Smith County
13.1
Very Low 0.61 / yr $1M
189 Rains County
12.5
Very Low 0.61 / yr $2M
190 Haskell County
12.3
Very Low 0.82 / yr $1M
191 Menard County
12.0
Very Low 0.89 / yr $1M
192 Swisher County
11.8
Very Low 0.61 / yr $1M
193 Red River County
11.7
Very Low 1.11 / yr $962K
194 Terry County
11.7
Very Low 0.61 / yr $1M
195 Floyd County
11.3
Very Low 0.61 / yr $1M
196 Mills County
11.3
Very Low 0.68 / yr $1M
197 Castro County
11.2
Very Low 0.86 / yr $1M
198 Andrews County
10.8
Very Low 1.25 / yr $2M
199 Jack County
10.1
Very Low 0.82 / yr $1M
200 Moore County
9.6
Very Low 0.46 / yr $1M
201 Archer County
8.6
Very Low 0.64 / yr $1M
202 Jeff Davis County
7.9
Very Low 0.75 / yr $833K
203 Wheeler County
7.7
Very Low 0.50 / yr $736K
204 Ochiltree County
7.4
Very Low 0.61 / yr $1M
205 Upton County
7.1
Very Low 1.00 / yr $776K
206 Culberson County
6.6
Very Low 0.46 / yr $514K
207 Delta County
6.4
Very Low 0.64 / yr $848K
208 Kinney County
6.0
Very Low 1.68 / yr $527K
209 Hudspeth County
5.6
Very Low 0.64 / yr $597K
210 Crosby County
5.5
Very Low 0.57 / yr $439K
211 Parmer County
5.3
Very Low 0.32 / yr $787K
212 Knox County
5.3
Very Low 0.61 / yr $461K
213 Coke County
5.2
Very Low 0.61 / yr $648K
214 Hartley County
5.1
Very Low 0.29 / yr $960K
215 Winkler County
4.6
Very Low 0.68 / yr $552K
216 Lynn County
4.5
Very Low 1.21 / yr $504K
217 Hardeman County
4.5
Very Low 0.21 / yr $381K
218 Lipscomb County
4.4
Very Low 0.50 / yr $613K
219 Donley County
4.2
Very Low 0.61 / yr $478K
220 Concho County
4.0
Very Low 0.36 / yr $509K
221 Hansford County
3.9
Very Low 0.29 / yr $548K
222 Childress County
3.9
Very Low 0.36 / yr $537K
223 Hall County
3.8
Very Low 0.46 / yr $350K
224 Reagan County
3.8
Very Low 0.86 / yr $535K
225 Terrell County
3.7
Very Low 0.86 / yr $421K
226 Carson County
3.6
Very Low 0.54 / yr $761K
227 Hemphill County
3.6
Very Low 0.32 / yr $547K
228 Crane County
3.5
Very Low 0.57 / yr $386K
229 Collingsworth County
3.3
Very Low 0.32 / yr $440K
230 Garza County
3.3
Very Low 0.75 / yr $353K
231 Shackelford County
3.2
Very Low 0.39 / yr $775K
232 Irion County
2.9
Very Low 0.71 / yr $365K
233 Fisher County
2.7
Very Low 0.93 / yr $681K
234 McMullen County
2.2
Very Low 0.89 / yr $396K
235 Schleicher County
2.1
Very Low 0.64 / yr $326K
236 Throckmorton County
2.0
Very Low 0.46 / yr $331K
237 Dickens County
1.9
Very Low 0.32 / yr $224K
238 Glasscock County
1.9
Very Low 0.75 / yr $332K
239 Cochran County
1.8
Very Low 0.25 / yr $256K
240 Oldham County
1.6
Very Low 0.29 / yr $287K
241 Motley County
1.6
Very Low 0.14 / yr $223K
242 Cottle County
1.5
Very Low 0.21 / yr $181K
243 Armstrong County
1.3
Very Low 0.57 / yr $248K
244 Sherman County
1.1
Very Low 0.07 / yr $252K
245 Foard County
1.0
Very Low 0.21 / yr $183K
246 Stonewall County
1.0
Very Low 0.14 / yr $168K
247 Sterling County
0.8
Very Low 0.43 / yr $218K
248 Borden County
0.7
Very Low 0.50 / yr $160K
249 King County
0.6
Very Low 0.07 / yr $115K
250 Kent County
0.5
Very Low 0.29 / yr $135K
251 Briscoe County
0.4
Very Low 0.50 / yr $173K
252 Roberts County
0.4
Very Low 0.18 / yr $167K
253 Kenedy County
0.3
Very Low 0.01 / yr $87K
254 Loving County
0.2
Very Low 0.39 / yr $34K

254 Texas counties with measurable riverine flood risk. See the national riverine flood ranking or all Texas counties by overall risk.

Frequently Asked Questions

Which Texas county has the highest riverine flood risk?

Harris County has the highest FEMA riverine flood risk score in Texas at 100.0 (Very High), with $1.12B in expected annual losses and about 5.14 events per year.

How many Texas counties face significant riverine flood risk?

254 Texas counties record measurable riverine flood risk in FEMA's National Risk Index; 16 of them are rated High or Very High.

Other Hazards in Texas

Avalanche Coastal Flood Cold Wave Drought Earthquake Hail Heat Wave Hurricane Ice Storm Landslide Lightning Strong Wind Tornado Wildfire Winter Weather