Illinois Number of Private Business Establishments in the NAICS 54151 Computer systems design and related services Industry By County in 2025 Q2 (QCEW)

Updated on April 2, 2026.

According to data from the US Bureau of Labor Statistics, in 2025 Q2, Illinois had 14,332 number of private business establishments in the NAICS 54151 Computer systems design and related services Industry. Among all Illinois counties, Cook had the highest number of private business establishments (3,442), followed by DuPage (1,232), and Lake (609).

The chart and table shows the number of business establishments for each county.

You can see similar information for other states, and for the United States.

You can see similar information for other industries.

Related Topics: Illinois BLS Topic List.

Data Source: US Bureau of Labor Statistics (QCEW).

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Illinois Number of Private Business Establishments in the NAICS 54151 Computer systems design and related services Industry By County in 2025 Q2

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County	Number of Business Establishments
Adams	11
Bond	3
Boone	8
Bureau	3
Cass	2
Champaign	91
Christian	4
Clinton	7
Coles	2
Cook	3442
DeKalb	15
Douglas	2
DuPage	1232
Edwards	1
Effingham	12
Fayette	1
Ford	2
Franklin	1
Fulton	3
Greene	1
Grundy	7
Hamilton	1
Hancock	1
Henry	5
Iroquois	2
Jackson	12
Jefferson	4
Jo Daviess	2
Kane	270
Kankakee	9
Kendall	53
Knox	2
Lake	609
LaSalle	15
Lawrence	1
Lee	5
Livingston	2
Logan	3
McDonough	3
McHenry	131
McLean	81
Macon	17
Macoupin	2
Madison	63
Marion	2
Marshall	1
Menard	1
Monroe	10
Montgomery	3
Morgan	3
Moultrie	3
Ogle	4
Peoria	66
Perry	1
Piatt	3
Randolph	1
Rock Island	32
St. Clair	116
Saline	1
Sangamon	124
Schuyler	1
Scott	1
Shelby	5
Stephenson	6
Tazewell	33
Vermilion	4
Wabash	1
Wayne	2
White	2
Whiteside	3
Will	437
Williamson	6
Winnebago	43
Woodford	1