Illinois Non-Hispanic Voting-age Population By County from Census 2020

Updated on August 29, 2023.

According to the data from the US 2020 decennial Census, as at April 2020, the voting-age population, of people (of all racial backgrounds) in Illinois who identified as Non-Hispanic (not hispanic or latino) was 8,379,157; and represented 83.80% of the total Illinois voting-age population.

Cook County had the highest non-hispanic voting-age population (3.19M), followed by DuPage County (626.67K), and Will County (439.65K). On the other hand, the three counties with low non-hispanic voting-age popoulation were: Hardin County (2.95K), Pope County (3.02K), and Calhoun County (3.50K).

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

Hover over or click on the counties in the chart below to see the number and percentage of each county's voting-age population that identified as non-hispanic. You can also see this information in a table at the bottom of the page.

Illinois Non-Hispanic Votign-age Population By County from Census 2020
Illinois Non-Hispanic Voting-age Population By County from Census 2020
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County Non-Hispanic Voting-age Population % of County Voting-age Population
Adams 50234 98.44
Alexander 4181 98.66
Bond 13175 96.34
Boone 31920 79.60
Brown 4891 94.86
Bureau 24237 92.47
Calhoun 3503 99.10
Carroll 12319 95.71
Cass 8084 82.27
Champaign 154448 92.81
Christian 26293 96.60
Clark 11838 98.71
Clay 10114 98.72
Clinton 27898 96.68
Coles 36399 96.49
Cook 3185516 76.35
Crawford 14544 97.67
Cumberland 7983 99.02
DeKalb 68932 88.51
De Witt 11882 97.52
Douglas 13827 93.10
DuPage 626669 86.52
Edgar 13249 98.92
Edwards 4772 99.13
Effingham 26069 98.06
Fayette 16490 96.77
Ford 10189 97.03
Franklin 29280 98.60
Fulton 26385 97.82
Gallatin 3896 99.14
Greene 9248 99.32
Grundy 35877 91.10
Hamilton 6125 99.16
Hancock 13656 98.47
Hardin 2953 98.93
Henderson 5112 98.59
Henry 36097 94.88
Iroquois 19851 94.02
Jackson 40731 95.30
Jasper 7154 99.24
Jefferson 28274 98.02
Jersey 16879 98.72
Jo Daviess 17293 97.09
Johnson 10497 95.45
Kane 275386 70.83
Kankakee 75025 90.44
Kendall 76824 81.77
Knox 37961 94.84
Lake 427990 78.67
LaSalle 79241 91.59
Lawrence 11911 96.57
Lee 25802 94.15
Livingston 26764 95.71
Logan 21935 97.32
McDonough 21549 96.68
McHenry 208800 87.41
McLean 127042 94.72
Macon 79258 97.89
Macoupin 35237 99.01
Madison 201953 96.56
Marion 28721 98.54
Marshall 9104 97.84
Mason 10310 98.85
Massac 10755 98.19
Menard 9416 99.04
Mercer 12012 97.75
Monroe 26580 98.45
Montgomery 22112 98.18
Morgan 25802 97.67
Moultrie 10814 98.83
Ogle 36329 90.86
Peoria 133098 95.29
Perry 16332 96.79
Piatt 12812 98.85
Pike 11233 98.61
Pope 3019 98.40
Pulaski 3947 95.64
Putnam 4341 95.30
Randolph 23480 97.02
Richland 12100 98.81
Rock Island 99739 88.50
St. Clair 189209 96.00
Saline 18170 98.37
Sangamon 149726 97.74
Schuyler 5526 98.31
Scott 3831 99.10
Shelby 16387 99.23
Stark 4138 98.13
Stephenson 33791 96.19
Tazewell 99634 98.09
Union 13195 96.09
Vermilion 54818 95.82
Wabash 8761 98.84
Warren 12114 91.41
Washington 10684 98.64
Wayne 12298 99.08
White 10862 98.81
Whiteside 38936 89.27
Will 439649 83.57
Williamson 51408 97.86
Winnebago 193732 88.05
Woodford 28590 98.59