Illinois Birth Rate for Teens (15–19 years) By County in 2020 Per 1,000 (CDC)

Updated on July 21, 2025.

According to data from the CDC, in 2020, among all Illinois counties, Alexander had the highest estimated birth rate for Teens in the 15–19 years age group (expressed per 1,000 females aged 15–19) (38.3), followed by Cass (37.4), and Marion (36.9).

You can see similar information for other states.

The chart below shows the estimated teen birth rates for each Illinois county; hover over the chart to see the details. The data can also be filtered, sorted, and explored further in the table below.

Data Source: CDC.
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Illinois Birth Rate for Teens (15–19 years) By County in 2020 Per 1,000
Illinois Birth Rate for Teens By County in 2020
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County Teen (15-19 yrs) Birth Rate
Alexander 38.3
Cass 37.4
Marion 36.9
Vermilion 36.2
Gallatin 34.6
Lawrence 33.5
Saline 33.2
White 33.1
Fayette 32.8
Edgar 32.4
Franklin 32.3
Richland 30.8
Jefferson 30.4
Wabash 29.7
Wayne 29.7
Clay 28.6
Peoria 28
Fulton 27.7
Massac 27.3
Randolph 25.6
Edwards 25.5
Macon 25.4
Pike 24.9
Marshall 23.8
Stephenson 23.7
Pope 23.6
Mason 23.1
Winnebago 23
Perry 22.7
Rock Island 22.1
Whiteside 21.5
Clark 21.4
Crawford 21.3
Effingham 21
Adams 20.9
Montgomery 20.9
Hamilton 20.8
Macoupin 20.4
Johnson 20.3
Livingston 20.2
Union 20.2
Ford 20
St. Clair 19.8
Williamson 19.8
Hancock 19.7
Henderson 19.7
LaSalle 19.6
Knox 19.5
Sangamon 19.5
Iroquois 19.4
Greene 19.3
Morgan 19.2
Shelby 18.9
Logan 18.7
De Witt 18.6
Pulaski 18.4
Christian 17.9
Henry 17.4
Kankakee 17.3
Cumberland 17
Schuyler 16.9
Warren 16.8
Washington 16.8
Brown 16.1
Madison 15.8
Tazewell 15.4
Carroll 15.3
Stark 15
Hardin 14.9
Jackson 14.6
Mercer 14.4
Douglas 13.7
Bond 13.5
Bureau 13.4
Cook 13.4
Lee 13.2
Jasper 13.1
Coles 12.9
Kane 12.3
Moultrie 12.2
Boone 11.9
Ogle 11.4
Champaign 11.3
Scott 10.9
Jo Daviess 10.8
Grundy 10.7
Jersey 10.6
Piatt 10.4
Clinton 10.3
Menard 10
Putnam 9.4
Woodford 9.4
Lake 8.9
Will 8.7
DeKalb 7.8
McLean 7.7
McDonough 6.9
Calhoun 6.8
McHenry 6.2
Kendall 5.9
DuPage 5.6
Monroe 3.8