Lightning strikes in Illinois by county

The detection network has located 224,921 lightning strikes in Illinois since the archive began, including 207,047 in the last 7 days. The table counts every strike the network placed inside a county boundary. Another 11,281 strikes fell inside Illinois but outside every county polygon, mostly over coastal or lake water.

#	County	Strikes	Last 7 days	Share
1	LaSalle County	12,992	12,978	5.8%
2	Iroquois County	12,224	11,666	5.4%
3	Livingston County	12,178	12,002	5.4%
4	Peoria County	10,394	10,380	4.6%
5	Knox County	9,081	9,065	4.0%
6	Vermilion County	9,079	9,072	4.0%
7	McLean County	8,421	8,211	3.7%
8	Cook County	7,988	7,870	3.6%
9	Lee County	7,443	7,349	3.3%
10	Champaign County	6,787	6,752	3.0%
11	Mercer County	6,143	6,119	2.7%
12	Will County	5,790	5,443	2.6%
13	Tazewell County	5,753	5,499	2.6%
14	Fulton County	4,919	4,855	2.2%
15	Warren County	4,649	4,618	2.1%
16	Grundy County	4,637	4,631	2.1%
17	Ford County	4,566	4,498	2.0%
18	Kane County	4,179	4,156	1.9%
19	Lake County	3,912	3,901	1.7%
20	Kankakee County	3,855	3,685	1.7%
21	DuPage County	3,612	3,597	1.6%
22	McHenry County	3,015	2,943	1.3%
23	Randolph County	2,850	1,885	1.3%
24	Henry County	2,788	2,736	1.2%
25	Woodford County	2,516	2,439	1.1%
26	DeKalb County	2,254	2,207	1.0%
27	Henderson County	2,250	2,243	1.0%
28	Bureau County	2,120	2,061	0.9%
29	Hamilton County	1,832	1,674	0.8%
30	Rock Island County	1,667	1,636	0.7%
31	Pulaski County	1,644	706	0.7%
32	Williamson County	1,637	622	0.7%
33	Edgar County	1,633	1,613	0.7%
34	Franklin County	1,556	1,233	0.7%
35	Piatt County	1,457	1,401	0.6%
36	Union County	1,435	1,057	0.6%
37	St. Clair County	1,429	784	0.6%
38	De Witt County	1,347	1,329	0.6%
39	Stark County	1,345	1,314	0.6%
40	Whiteside County	1,270	1,252	0.6%
41	Washington County	1,229	958	0.5%
42	Ogle County	1,185	1,074	0.5%
43	Massac County	1,163	44	0.5%
44	Saline County	1,099	731	0.5%
45	Alexander County	1,082	487	0.5%
46	Monroe County	1,019	411	0.5%
47	Putnam County	1,005	997	0.4%
48	Perry County	996	854	0.4%
49	Kendall County	977	950	0.4%
50	Jefferson County	976	387	0.4%
51	Hancock County	960	870	0.4%
52	Douglas County	933	911	0.4%
53	Jackson County	926	406	0.4%
54	Marshall County	828	820	0.4%
55	Carroll County	825	823	0.4%
56	Boone County	822	811	0.4%
57	White County	791	720	0.4%
58	McDonough County	755	750	0.3%
59	Pope County	650	11	0.3%
60	Johnson County	625	40	0.3%
61	Madison County	624	186	0.3%
62	Fayette County	599	155	0.3%
63	Gallatin County	570	367	0.3%
64	Marion County	534	71	0.2%
65	Jo Daviess County	506	461	0.2%
66	Mason County	464	320	0.2%
67	Wabash County	444	442	0.2%
68	Winnebago County	443	435	0.2%
69	Clark County	410	293	0.2%
70	Clinton County	391	166	0.2%
71	Logan County	389	375	0.2%
72	Wayne County	362	189	0.2%
73	Effingham County	313	6	0.1%
74	Crawford County	309	175	0.1%
75	Hardin County	305	41	0.1%
76	Montgomery County	265	192	0.1%
77	Adams County	239	103	0.1%
78	Macon County	238	108	0.1%
79	Macoupin County	224	153	0.1%
80	Clay County	219	0	0.1%
81	Stephenson County	208	203	0.1%
82	Coles County	207	87	0.1%
83	Schuyler County	174	103	0.1%
84	Jersey County	166	53	0.1%
85	Jasper County	159	4	0.1%
86	Pike County	153	39	0.1%
87	Shelby County	152	80	0.1%
88	Calhoun County	146	46	0.1%
89	Cumberland County	146	26	0.1%
90	Moultrie County	122	34	0.1%
91	Richland County	98	38	0.0%
92	Greene County	90	7	0.0%
93	Edwards County	82	66	0.0%
94	Christian County	70	27	0.0%
95	Bond County	68	37	0.0%
96	Morgan County	59	55	0.0%
97	Cass County	50	48	0.0%
98	Menard County	41	38	0.0%
99	Brown County	37	7	0.0%
100	Lawrence County	35	35	0.0%
101	Sangamon County	34	13	0.0%
102	Scott County	2	2	0.0%

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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