Texas tornado risk

254 counties scored 9 rated Very High

Harris County has the highest tornado risk in Texas, scoring 100 out of 100 — rated "Very High" by FEMA's National Risk Index. NOAA has recorded 1,244 tornado events across Texas over the past decade.

#	County	NRI score	Rating	NOAA events 2016–2026
1	Harris County	100	Very High	33
2	Bexar County	99.9	Very High	5
3	Collin County	99.9	Very High	9
4	Tarrant County	99.9	Very High	20
5	Dallas County	99.8	Very High	12
6	Denton County	99.8	Very High	10
7	Travis County	99.7	Very High	5
8	Montgomery County	99.4	Very High	7
9	Fort Bend County	99.2	Very High	11
10	Lubbock County	98.8	Relatively High	4
11	McLennan County	98.8	Relatively High	10
12	Bell County	98.6	Relatively High	9
13	Jefferson County	98.5	Relatively High	9
14	Johnson County	98.1	Relatively High	7
15	Gregg County	97.9	Relatively High	7
16	Potter County	97.7	Relatively High	4
17	Brazoria County	97	Relatively High	14
18	Galveston County	96.9	Relatively High	11
19	Brazos County	96.7	Relatively High	5
20	Hunt County	96.5	Relatively High	2
21	Randall County	96.4	Relatively High	12
22	Parker County	96.2	Relatively High	11
23	Hays County	96.1	Relatively High	4
24	Nueces County	96.1	Relatively High	3
25	Hidalgo County	96	Relatively High	3
26	Lamar County	95.7	Relatively High	8
27	Nacogdoches County	94.9	Relatively High	10
28	Liberty County	94.5	Relatively High	8
29	Navarro County	94.1	Relatively High	10
30	Williamson County	93.9	Relatively High	12
31	Bowie County	93.7	Relatively High	11
32	Rockwall County	93.7	Relatively High	4
33	Harrison County	93.5	Relatively High	20
34	Henderson County	93.5	Relatively High	7
35	Comal County	93.2	Relatively High	5
36	Grayson County	92.9	Relatively High	5
37	Wichita County	92.8	Relatively High	7
38	Anderson County	92.3	Relatively High	1
39	Guadalupe County	92.2	Relatively High	3
40	Hood County	92.1	Relatively High	4
41	Hopkins County	92	Relatively High	5
42	Upshur County	92	Relatively High	6
43	Walker County	91.9	Relatively High	2
44	Cooke County	91.5	Relatively High	6
45	Midland County	91.4	Relatively High	5
46	Bastrop County	91.1	Relatively High	6
47	Waller County	90.2	Relatively High	7
48	San Jacinto County	90	Relatively Moderate	0
49	Hill County	89.8	Relatively Moderate	11
50	Orange County	89.2	Relatively Moderate	5
51	Ellis County	87.8	Relatively Moderate	9
52	Coryell County	87.6	Relatively Moderate	4
53	Polk County	87.5	Relatively Moderate	2
54	Fannin County	87.3	Relatively Moderate	10
55	Hale County	85.5	Relatively Moderate	7
56	Victoria County	85.2	Relatively Moderate	0
57	Cameron County	85.1	Relatively Moderate	8
58	Hardin County	85.1	Relatively Moderate	2
59	Burnet County	84.8	Relatively Moderate	4
60	Kaufman County	84.6	Relatively Moderate	4
61	Caldwell County	82.9	Relatively Moderate	4
62	Erath County	82.8	Relatively Moderate	4
63	Washington County	82.6	Relatively Moderate	1
64	Ector County	82.4	Relatively Moderate	3
65	Atascosa County	82	Relatively Moderate	0
66	Camp County	81.9	Relatively Moderate	2
67	Milam County	81.7	Relatively Moderate	6
68	Panola County	81.6	Relatively Moderate	15
69	San Patricio County	80.1	Relatively Moderate	3
70	Morris County	79.3	Relatively Moderate	4
71	Kerr County	78.9	Relatively Moderate	0
72	Hutchinson County	78.3	Relatively Moderate	10
73	Wilson County	78	Relatively Moderate	2
74	Van Zandt County	77.8	Relatively Moderate	16
75	Montague County	77.6	Relatively Moderate	8
76	Austin County	77.3	Relatively Moderate	1
77	Webb County	76.9	Relatively Moderate	0
78	Gray County	76.8	Relatively Moderate	6
79	Grimes County	76	Relatively Moderate	5
80	Wise County	75.9	Relatively Moderate	8
81	Chambers County	75.6	Relatively Moderate	4
82	Moore County	75.4	Relatively Moderate	5
83	Shelby County	75.1	Relatively Moderate	12
84	Rusk County	74.9	Relatively Moderate	17
85	Hockley County	74.6	Relatively Moderate	17
86	Titus County	74.4	Relatively Moderate	1
87	Cass County	74	Relatively Moderate	12
88	Taylor County	73.9	Relatively Moderate	6
89	Tom Green County	73.7	Relatively Moderate	5
90	Kendall County	73.6	Relatively Moderate	1
91	Freestone County	73.1	Relatively Moderate	4
92	Red River County	72.7	Relatively Moderate	7
93	Gonzales County	72.5	Relatively Moderate	0
94	Wharton County	72.4	Relatively Moderate	8
95	Franklin County	72.3	Relatively Moderate	4
96	Bosque County	71.4	Relatively Moderate	5
97	Colorado County	71.1	Relatively Moderate	2
98	Fayette County	70.8	Relatively Moderate	4
99	DeWitt County	70.7	Relatively Moderate	0
100	Tyler County	70.6	Relatively Moderate	6
101	Brown County	70.5	Relatively Moderate	4
102	Gillespie County	70.2	Relatively Moderate	1
103	Falls County	69.9	Relatively Moderate	5
104	Deaf Smith County	69.7	Relatively Moderate	4
105	Cherokee County	69.5	Relatively Moderate	13
106	Jim Wells County	68.4	Relatively Moderate	1
107	Jasper County	68.3	Relatively Moderate	15
108	Llano County	67.6	Relatively Moderate	0
109	Angelina County	67.5	Relatively Moderate	3
110	Comanche County	67.5	Relatively Moderate	0
111	Maverick County	67.4	Relatively Moderate	0
112	Howard County	66.1	Relatively Moderate	4
113	Eastland County	65.3	Relatively Moderate	3
114	Bandera County	65	Relatively Moderate	0
115	Bee County	64.9	Relatively Moderate	1
116	Houston County	63.7	Relatively Low	6
117	Limestone County	63.4	Relatively Low	9
118	Trinity County	63.4	Relatively Low	1
119	Nolan County	62.7	Relatively Low	1
120	Robertson County	62.3	Relatively Low	6
121	Rains County	62.1	Relatively Low	2
122	Wilbarger County	61.9	Relatively Low	8
123	Palo Pinto County	61.8	Relatively Low	9
124	Karnes County	61.3	Relatively Low	0
125	Lampasas County	61.2	Relatively Low	1
126	Leon County	61.1	Relatively Low	4
127	Swisher County	61.1	Relatively Low	6
128	Medina County	60.9	Relatively Low	1
129	Matagorda County	59.7	Relatively Low	3
130	Wheeler County	59.2	Relatively Low	9
131	Lamb County	58.7	Relatively Low	6
132	Aransas County	58.6	Relatively Low	3
133	Lee County	56.9	Relatively Low	2
134	Madison County	55.4	Relatively Low	3
135	Terry County	54.5	Relatively Low	4
136	Jones County	54.4	Relatively Low	9
137	Lavaca County	54.1	Relatively Low	2
138	Marion County	54	Relatively Low	5
139	Castro County	53.9	Relatively Low	14
140	Frio County	53.4	Relatively Low	2
141	Callahan County	52.7	Relatively Low	3
142	Clay County	52.3	Relatively Low	9
143	Dawson County	52.1	Relatively Low	4
144	Hemphill County	51.2	Relatively Low	9
145	Uvalde County	50.9	Relatively Low	0
146	Jackson County	49.9	Relatively Low	1
147	Young County	49.8	Relatively Low	2
148	Kleberg County	49.5	Relatively Low	3
149	Delta County	49.3	Relatively Low	2
150	Smith County	47.3	Relatively Low	13
151	Hamilton County	46.6	Relatively Low	1
152	Crosby County	46.5	Relatively Low	6
153	Calhoun County	46.1	Relatively Low	3
154	Newton County	45.5	Relatively Low	9
155	Ochiltree County	45.1	Relatively Low	17
156	Floyd County	44.9	Relatively Low	4
157	San Augustine County	44.8	Relatively Low	3
158	Sabine County	43.8	Relatively Low	5
159	Gaines County	43.5	Relatively Low	3
160	Scurry County	43.3	Relatively Low	5
161	Somervell County	42.7	Relatively Low	0
162	Bailey County	42.4	Relatively Low	7
163	Runnels County	42.1	Relatively Low	5
164	Blanco County	42	Relatively Low	2
165	Parmer County	42	Relatively Low	2
166	Jack County	41.4	Relatively Low	7
167	Val Verde County	41.1	Relatively Low	4
168	Carson County	40.8	Relatively Low	8
169	Donley County	40.2	Relatively Low	10
170	Wood County	39.7	Relatively Low	5
171	Garza County	39.2	Relatively Low	6
172	Live Oak County	39	Relatively Low	6
173	Coleman County	38.3	Relatively Low	4
174	Starr County	38.2	Relatively Low	0
175	Lynn County	37	Relatively Low	2
176	Hansford County	36.6	Relatively Low	13
177	Burleson County	36.5	Relatively Low	3
178	Dallam County	36	Relatively Low	10
179	Mitchell County	35.4	Relatively Low	2
180	Hardeman County	35.1	Relatively Low	6
181	El Paso County	34.8	Relatively Low	1
182	Yoakum County	34.3	Relatively Low	1
183	Collingsworth County	34	Relatively Low	6
184	Stephens County	34	Relatively Low	1
185	Baylor County	33.8	Relatively Low	6
186	Haskell County	32.2	Relatively Low	6
187	Duval County	31.8	Relatively Low	0
188	Archer County	31.7	Relatively Low	3
189	Hall County	31.7	Relatively Low	9
190	Goliad County	31	Relatively Low	0
191	Childress County	30.9	Relatively Low	0
192	Lipscomb County	29.8	Relatively Low	8
193	Refugio County	29.8	Relatively Low	2
194	McCulloch County	29.5	Relatively Low	6
195	Mills County	29.3	Relatively Low	0
196	Zavala County	28.9	Relatively Low	0
197	Dimmit County	28.2	Relatively Low	0
198	Knox County	28.1	Relatively Low	4
199	Hartley County	26.5	Relatively Low	2
200	Ward County	26.5	Relatively Low	1
201	Pecos County	26.1	Very Low	23
202	Kimble County	24.9	Very Low	3
203	La Salle County	24.5	Very Low	1
204	Armstrong County	24	Very Low	9
205	Martin County	23.6	Very Low	0
206	San Saba County	23.4	Very Low	0
207	Willacy County	23.2	Very Low	3
208	Coke County	22.8	Very Low	2
209	Cochran County	21.7	Very Low	9
210	Brooks County	20.7	Very Low	0
211	Mason County	20.6	Very Low	1
212	Reeves County	19.3	Very Low	2
213	Oldham County	19.1	Very Low	6
214	Shackelford County	19	Very Low	3
215	Winkler County	18.8	Very Low	0
216	Sherman County	18.6	Very Low	5
217	Andrews County	18.4	Very Low	1
218	Concho County	18.2	Very Low	2
219	Dickens County	18	Very Low	12
220	Cottle County	17.6	Very Low	6
221	Throckmorton County	17.1	Very Low	3
222	Foard County	17	Very Low	4
223	Real County	16.8	Very Low	0
224	Upton County	16.5	Very Low	4
225	Menard County	15.6	Very Low	1
226	Briscoe County	15.3	Very Low	5
227	Stonewall County	15.2	Very Low	3
228	Brewster County	15	Very Low	4
229	Motley County	14.9	Very Low	7
230	Zapata County	14.7	Very Low	0
231	Fisher County	14.6	Very Low	5
232	Reagan County	14.5	Very Low	2
233	Jim Hogg County	14.3	Very Low	0
234	Sutton County	14.2	Very Low	0
235	Crane County	14	Very Low	0
236	Edwards County	13.7	Very Low	0
237	Roberts County	13.1	Very Low	5
238	Schleicher County	12.2	Very Low	1
239	Glasscock County	12	Very Low	9
240	Kinney County	11.8	Very Low	1
241	Sterling County	11.6	Very Low	2
242	Borden County	11.3	Very Low	1
243	Irion County	10.9	Very Low	0
244	Crockett County	10	Very Low	3
245	Kent County	9.7	Very Low	2
246	McMullen County	8.5	Very Low	0
247	Presidio County	7.8	Very Low	0
248	King County	7.5	Very Low	3
249	Jeff Davis County	6.5	Very Low	1
250	Culberson County	5.7	Very Low	0
251	Terrell County	4.8	Very Low	4
252	Kenedy County	4.5	Very Low	0
253	Hudspeth County	2.1	Very Low	1
254	Loving County	1.8	Very Low	1

Source: FEMA National Risk Index v1.20.0, December 2025. Scores are 0–100 percentile rankings among all US counties. See the methodology page for definitions. Download the full CSV for all counties.

Tornado risk nationally:

Top 50 US counties

Other hazard risks in Texas:

Wildfire Inland Flooding Coastal Flooding Earthquake Heat Wave Hurricane Hail Strong Wind Winter Weather Ice Storm Cold Wave Lightning Drought Landslide Avalanche Tsunami Volcanic Activity

Frequently asked questions

What is the highest tornado risk county in Texas?

Harris County, TX has the highest tornado risk in Texas, with a FEMA National Risk Index score of 100 out of 100 (rated "Very High").

How many counties in Texas are rated Very High for tornado risk?

9 of 254 scored Texas counties are rated "Very High" for tornado risk by FEMA's National Risk Index.

What causes tornado risk in Texas?

Tornado risk concentrates in the central and southern plains ("Tornado Alley") and the Southeast ("Dixie Alley"), where atmospheric conditions favor supercell thunderstorm development. The highest scores often belong to counties with significant mobile home and manufactured housing stock, which carries disproportionate tornado mortality risk.