Illinois White Alone Population By County in 2021

Updated on June 16, 2025.

Based on the US Census Vintage data estimates, in 2021, the White Alone population in Illinois was 9,685,721 and represented 76.32% of the total Illinois population (12,690,341).

Among Illinois counties, Cook County had the highest number of people who identified as White Alone (3,382,710), followed by DuPage County (729,748), and Lake County (571,589). Alexander County had the lowest (3,276).

In the map below, we show the number and percentage of each county's White Alone population, as well as the gender percentages when you interact with the map. The data can also be found in a table below. You can use the table to sort, filter, and explore the data further.

You can see similar information for other states and also by state for the United States.

You can also see similar information for other racial and ethnicity groups in Illinois.

See this for other years:
Illinois White Alone Population By County in 2021
Illinois White Alone Population By County in 2021
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County White Alone Population % of County Population
Adams 60075 92.33
Alexander 3276 65.19
Bond 14948 89.92
Boone 49055 92.26
Brown 4957 77.07
Bureau 31517 95.63
Calhoun 4305 97.95
Carroll 14631 93.18
Cass 11586 90.59
Champaign 147024 71.16
Christian 32012 94.98
Clark 14941 97.32
Clay 12763 96.96
Clinton 34728 94.16
Coles 43195 92.29
Cook 3382710 65.29
Crawford 17288 92.53
Cumberland 10044 97.03
DeKalb 85898 85.49
De Witt 14874 96.57
Douglas 18979 96.37
DuPage 729748 78.73
Edgar 16167 97.53
Edwards 5907 97.09
Effingham 33555 97.24
Fayette 19527 91.09
Ford 12902 95.72
Franklin 36301 96.91
Fulton 31266 93.96
Gallatin 4718 96.38
Greene 11581 97.76
Grundy 50292 94.96
Hamilton 7661 96.82
Hancock 16881 97.15
Hardin 3479 95.71
Henderson 6097 96.69
Henry 46648 95.37
Iroquois 25741 96.14
Jackson 40668 77.31
Jasper 9009 98
Jefferson 32295 87.55
Jersey 20591 96.45
Jo Daviess 21310 96.99
Johnson 11354 84.28
Kane 445440 86.28
Kankakee 86245 80.9
Kendall 114113 84.52
Knox 42882 86.96
Lake 571589 80.22
LaSalle 102731 94.11
Lawrence 13262 87.09
Lee 31119 91.01
Livingston 33354 93.25
Logan 25020 89.42
McDonough 24102 89.67
McHenry 288539 92.62
McLean 142005 82.99
Macon 78614 76.62
Macoupin 43047 96.75
Madison 230194 86.91
Marion 34477 92.24
Marshall 11276 96.64
Mason 12429 96.88
Massac 12525 89.81
Menard 11745 96.53
Mercer 15135 97.14
Monroe 34101 97.42
Montgomery 26455 94.21
Morgan 29453 90.22
Moultrie 14179 97.38
Ogle 49361 95.91
Peoria 130770 72.8
Perry 18508 88.08
Piatt 16254 97
Pike 14232 97.34
Pope 3530 93.93
Pulaski 3290 64.83
Putnam 5422 97.03
Randolph 26880 89
Richland 15214 96.49
Rock Island 116429 81.46
St. Clair 164309 64.45
Saline 21804 93.52
Sangamon 158464 81.11
Schuyler 6369 93.24
Scott 4689 96.7
Shelby 20366 97.62
Stark 5091 96.35
Stephenson 37437 84.96
Tazewell 124576 95.53
Union 16074 94.99
Vermilion 59871 81.83
Wabash 10733 95.76
Warren 15242 91.9
Washington 13219 96.91
Wayne 15542 97.41
White 13368 97.17
Whiteside 52626 95.16
Will 548020 78.38
Williamson 60990 91.19
Winnebago 223523 78.89
Woodford 36983 96.76