Data / Rankings / Live births, July to June / Counties in Illinois

Counties in Illinois by births (July to June)

Cook County had the highest births (July to June) of 102 counties in 2021, at 54,945. Hardin County had the lowest, at 25. The median was 247 and the figure for Illinois was 131,839. Source: the U.S. Census Bureau.

Highest54,945Cook County
Lowest25Hardin County
Median247102 counties
Illinois131,839History

Top 40 counties, 2021

CSVChart (SVG)

Cook CountyCook County: 54,945 count54,945DuPage CountyDuPage County: 9,507 count9,507Will CountyWill County: 6,875 count6,875Lake CountyLake County: 6,654 count6,654Kane CountyKane County: 5,615 count5,615Winnebago CountyWinnebago County: 3,218 count3,218McHenry CountyMcHenry County: 2,921 count2,921St. Clair CountySt. Clair County: 2,804 count2,804Madison CountyMadison County: 2,690 count2,690Peoria CountyPeoria County: 2,193 count2,193Champaign CountyChampaign County: 2,090 count2,090Sangamon CountySangamon County: 2,089 count2,089McLean CountyMcLean County: 1,691 count1,691Rock Island CountyRock Island County: 1,516 count1,516Kendall CountyKendall County: 1,464 count1,464Tazewell CountyTazewell County: 1,227 count1,227Macon CountyMacon County: 1,215 count1,215LaSalle CountyLaSalle County: 1,119 count1,119Kankakee CountyKankakee County: 1,099 count1,099DeKalb CountyDeKalb County: 993 count993Vermilion CountyVermilion County: 844 count844Adams CountyAdams County: 740 count740Williamson CountyWilliamson County: 653 count653Whiteside CountyWhiteside County: 588 count588Jackson CountyJackson County: 559 count559Grundy CountyGrundy County: 551 count551Ogle CountyOgle County: 516 count516Boone CountyBoone County: 507 count507Knox CountyKnox County: 499 count499Marion CountyMarion County: 493 count493Henry CountyHenry County: 471 count471Coles CountyColes County: 457 count457Stephenson CountyStephenson County: 452 count452Jefferson CountyJefferson County: 428 count428Effingham CountyEffingham County: 425 count425Livingston CountyLivingston County: 420 count420Macoupin CountyMacoupin County: 406 count406Clinton CountyClinton County: 394 count394Woodford CountyWoodford County: 380 count380Franklin CountyFranklin County: 373 count373
count. Source: U.S. Census Bureau. Retrieved 2026-10-08.

Full ranking

RankCounties2021
count
1Cook County Estimated54,945
2DuPage County Estimated9,507
3Will County Estimated6,875
4Lake County Estimated6,654
5Kane County Estimated5,615
6Winnebago County Estimated3,218
7McHenry County Estimated2,921
8St. Clair County Estimated2,804
9Madison County Estimated2,690
10Peoria County Estimated2,193
11Champaign County Estimated2,090
12Sangamon County Estimated2,089
13McLean County Estimated1,691
14Rock Island County Estimated1,516
15Kendall County Estimated1,464
16Tazewell County Estimated1,227
17Macon County Estimated1,215
18LaSalle County Estimated1,119
19Kankakee County Estimated1,099
20DeKalb County Estimated993
21Vermilion County Estimated844
22Adams County Estimated740
23Williamson County Estimated653
24Whiteside County Estimated588
25Jackson County Estimated559
26Grundy County Estimated551
27Ogle County Estimated516
28Boone County Estimated507
29Knox County Estimated499
30Marion County Estimated493
31Henry County Estimated471
32Coles County Estimated457
33Stephenson County Estimated452
34Jefferson County Estimated428
35Effingham County Estimated425
36Livingston County Estimated420
37Macoupin County Estimated406
38Clinton County Estimated394
39Woodford County Estimated380
40Franklin County Estimated373
41Bureau County Estimated333
42Lee County Estimated330
43Morgan County Estimated327
44Randolph County Estimated299
45Christian County Estimated296
46Monroe County Estimated294
47Fulton County Estimated286
48Montgomery County Estimated255
49McDonough County Estimated252
50Douglas County Estimated248
51Iroquois County Estimated247
52Saline County Estimated246
53Logan County Estimated239
54Fayette County Estimated227
55Moultrie County Estimated211
56Shelby County Estimated200
57Perry County Estimated196
58Warren County Estimated191
59Jersey County Estimated188
60Crawford County Estimated183
61Wayne County Estimated182
62Hancock County Estimated179
62Pike County Estimated179
62Richland County Estimated179
65Clark County Estimated178
65Edgar County Estimated178
67Clay County Estimated169
68De Witt County Estimated162
69Jo Daviess County Estimated158
70Piatt County Estimated157
71Union County Estimated156
72Cass County Estimated154
73Bond County Estimated150
74Lawrence County Estimated147
75Mercer County Estimated145
76Ford County Estimated144
77Washington County Estimated130
78Cumberland County Estimated128
79White County Estimated125
80Massac County Estimated124
81Menard County Estimated121
82Carroll County Estimated117
83Wabash County Estimated112
84Greene County Estimated109
85Jasper County Estimated104
85Johnson County Estimated104
87Marshall County Estimated103
88Mason County Estimated100
89Hamilton County Estimated78
90Pulaski County Estimated68
91Schuyler County Estimated65
92Stark County Estimated60
93Edwards County Estimated56
94Alexander County Estimated55
95Henderson County Estimated54
96Brown County Estimated53
97Putnam County Estimated48
98Calhoun County Estimated47
99Gallatin County Estimated39
99Scott County Estimated39
101Pope County Estimated29
102Hardin County Estimated25

Other periods

About this ranking

Estimated live births to resident mothers from July 1 of the previous year through June 30 of the reported year.

Census population estimates component. The year identifies the end of the July-to-June period. These estimates can be revised and differ from calendar-year birth totals.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. Population Estimates Program: births, July 1 of the previous year to June 30 of the reported year, nation, states and counties. https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-08.

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Rank Counties in Illinois by births (July to June) using official data, and cite the source.
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Questions

Which county has the highest births (July to June)?

Cook County, with 54,945 in 2021, according to the U.S. Census Bureau.

Which county has the lowest births (July to June)?

Hardin County, with 25 in 2021.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Population Estimates Program: births, July 1 of the previous year to June 30 of the reported year, nation, states and counties. Retrieved 2026-10-08.

Live births, July to June: other rankings

Counties in Illinois: more rankings