Lightning strikes in Iowa by county

The detection network has located 200,000 lightning strikes in Iowa since the archive began, including 134,916 in the last 7 days. The table counts every strike the network placed inside a county boundary.

#CountyStrikesLast 7 daysShare
1Pottawattamie County11,0275,6315.5%
2Cass County6,6683,7073.3%
3Adair County6,5264,4343.3%
4Montgomery County6,2889853.1%
5Madison County5,7254,3012.9%
6Warren County5,0354,2482.5%
7Adams County4,7877782.4%
8Mahaska County4,4524,0172.2%
9Louisa County4,3654,3352.2%
10Keokuk County4,2974,1552.1%
11Mills County3,8917321.9%
12Marion County3,7223,0511.9%
13Harrison County3,6603,4801.8%
14Shelby County3,5692,9841.8%
15Des Moines County3,4773,4091.7%
16Guthrie County3,3872,9151.7%
17Union County3,3294191.7%
18Washington County3,3283,2961.7%
19Boone County3,3172,7981.7%
20Dallas County3,2482,5011.6%
21Wayne County3,0083271.5%
22Decatur County2,8652071.4%
23Jasper County2,8441,8861.4%
24Van Buren County2,8271,4901.4%
25Polk County2,7651,9161.4%
26Clarke County2,7255151.4%
27Audubon County2,6282,2821.3%
28Jefferson County2,4852,3351.2%
29Ringgold County2,3952901.2%
30Crawford County2,3752,3551.2%
31Iowa County2,3682,0871.2%
32Monona County2,2862,1461.1%
33Greene County2,2481,4661.1%
34Johnson County2,2052,0871.1%
35Kossuth County2,1311,8241.1%
36Monroe County2,1181,5401.1%
37Muscatine County2,0461,9341.0%
38Wapello County2,0021,4491.0%
39Henry County1,9671,8291.0%
40Webster County1,8721,6780.9%
41Lucas County1,8609070.9%
42Taylor County1,7457480.9%
43Jackson County1,7371,6130.9%
44Poweshiek County1,7321,3480.9%
45Carroll County1,7031,4250.9%
46Lee County1,6851,4950.8%
47Story County1,6481,4230.8%
48Appanoose County1,6316310.8%
49Pocahontas County1,5651,4420.8%
50Wright County1,5241,5140.8%
51Cedar County1,4631,3580.7%
52Benton County1,4181,2250.7%
53Clinton County1,4011,3720.7%
54Sioux County1,3954610.7%
55Woodbury County1,3811,2270.7%
56Hamilton County1,3441,1330.7%
57Hardin County1,3391,0530.7%
58Emmet County1,2831,1330.6%
59Fremont County1,2234120.6%
60Tama County1,2051,0590.6%
61Jones County1,1216990.6%
62Calhoun County1,1189480.6%
63Cherokee County1,0888020.5%
64Davis County1,0855710.5%
65Page County1,0755250.5%
66Bremer County1,0242810.5%
67Buena Vista County1,0018090.5%
68Delaware County9694620.5%
69Dickinson County9696430.5%
70Sac County9348740.5%
71Humboldt County8998770.4%
72Scott County8728620.4%
73Buchanan County8693060.4%
74Black Hawk County8103370.4%
75Linn County7974250.4%
76Marshall County7946970.4%
77Franklin County7887200.4%
78Butler County7875710.4%
79Plymouth County7664760.4%
80Fayette County7613390.4%
81Clay County7414460.4%
82Hancock County7246110.4%
83Grundy County7194700.4%
84Palo Alto County6645440.3%
85Ida County6565350.3%
86Winnebago County6153840.3%
87Floyd County6105810.3%
88O'Brien County5641410.3%
89Cerro Gordo County5364700.3%
90Lyon County521300.3%
91Osceola County51870.3%
92Dubuque County3452310.2%
93Worth County3322490.2%
94Winneshiek County2912550.1%
95Clayton County2721830.1%
96Chickasaw County2622240.1%
97Allamakee County2272150.1%
98Howard County1791740.1%
99Mitchell County1571440.1%

Strike positions carry the network's mean location error of about 5.6 km, so strikes near a county line can be filed one county over. Method and caveats are on the data hub; the full state table is on the United States page.

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