Ranking of Illinois Counties By Natural Population Increase in 2020

Updated on January 26, 2024.

Based on the US Census Vintage data estimates, in 2020, the Natural Population Increase for Illinois was 22.60K. Among all Illinois counties, Cook County had the highest natural population increase (13.84K), followed by DuPage County (2.76K), and Kane County (2.40K).

The chart below shows the top 10 counties, and the table below shows the ranking of all Illinois counties.

You can see similar ranking information for related topics, and for other states. You can also see the ranking of all counties in the United States.

See this for other years:
Ranking of Illinois Counties By Natural Population Increase in 2020
Cook
13.84K
DuPage
2.76K
Kane
2.40K
Will
1.98K
Lake
1.76K
Kendall
822
Champaign
672
McHenry
568
Peoria
491
Winnebago
468
Ranking of Illinois Counties By Natural Population Increase in 2020
Rank
County
Natural Pop. Increase
1 Cook County 13,837
2 DuPage County 2,764
3 Kane County 2,396
4 Will County 1,984
5 Lake County 1,759
6 Kendall County 822
7 Champaign County 672
8 McHenry County 568
9 Peoria County 491
10 Winnebago County 468
11 McLean County 434
12 DeKalb County 308
13 Rock Island County 150
14 Grundy County 109
15 Jackson County 96
16 Boone County 87
17 Effingham County 80
18 St. Clair County 59
19 Douglas County 44
20 Livingston County 38
21 Marion County 37
22 Monroe County 35
23 Edwards County 22
24 Jasper County 19
25 Pike County 16
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