Data / Rankings / School enrolment, children aged 3 and 4 / Counties in Illinois

Counties in Illinois by school enrolment, children aged 3 and 4

Scott County had the highest school enrolment, children aged 3 and 4 of 102 counties in 2021, at 82.7%. Gallatin County had the lowest, at 26.3%. The median was 52% and the figure for Illinois was 52.2%. Source: the U.S. Census Bureau.

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Highest82.7Scott County
Lowest26.3Gallatin County
Median52102 counties
Illinois52.2History

Map of counties, 2021

Adams County: 44.7 %Alexander County: 71.3 %Bond County: 40.7 %Boone County: 31 %Brown County: 79 %Bureau County: 53 %Calhoun County: 49.5 %Carroll County: 64.9 %Cass County: 75.8 %Champaign County: 55.6 %Christian County: 71.3 %Clark County: 31 %Clay County: 37.6 %Clinton County: 51 %Coles County: 51.3 %Cook County: 52.8 %Crawford County: 55 %Cumberland County: 42.9 %DeKalb County: 43.5 %De Witt County: 42.5 %Douglas County: 33 %DuPage County: 57.9 %Edgar County: 54.7 %Edwards County: 49 %Effingham County: 45.5 %Fayette County: 51.6 %Ford County: 58 %Franklin County: 33.6 %Fulton County: 57.7 %Gallatin County: 26.3 %Greene County: 57.7 %Grundy County: 64.3 %Hamilton County: 46.7 %Hancock County: 62.2 %Hardin County: 32.8 %Henderson County: 53.1 %Henry County: 54.3 %Iroquois County: 45.9 %Jackson County: 52.6 %Jasper County: 48.9 %Jefferson County: 44.6 %Jersey County: 52.1 %Jo Daviess County: 59.2 %Johnson County: 79 %Kane County: 49.5 %Kankakee County: 47.8 %Kendall County: 51.5 %Knox County: 55.1 %Lake County: 50.8 %LaSalle County: 53.3 %Lawrence County: 58.7 %Lee County: 33.3 %Livingston County: 48.7 %Logan County: 62.8 %McDonough County: 62.4 %McHenry County: 50.1 %McLean County: 50.8 %Macon County: 54.9 %Macoupin County: 66.7 %Madison County: 56.9 %Marion County: 59.9 %Marshall County: 31.4 %Mason County: 78.2 %Massac County: 70.4 %Menard County: 66.8 %Mercer County: 58.5 %Monroe County: 40.3 %Montgomery County: 56.4 %Morgan County: 40.5 %Moultrie County: 43.7 %Ogle County: 53 %Peoria County: 46.9 %Perry County: 68 %Piatt County: 64.5 %Pike County: 42.5 %Pope County: 28.3 %Pulaski County: 72.9 %Putnam County: 53.7 %Randolph County: 49.9 %Richland County: 57 %Rock Island County: 38.5 %St. Clair County: 59.4 %Saline County: 50.2 %Sangamon County: 58.9 %Schuyler County: 62.7 %Scott County: 82.7 %Shelby County: 45.2 %Stark County: 28.6 %Stephenson County: 52.2 %Tazewell County: 50.1 %Union County: 60.5 %Vermilion County: 46.3 %Wabash County: 51.3 %Warren County: 52 %Washington County: 56.5 %Wayne County: 40.9 %White County: 50.3 %Whiteside County: 55.4 %Will County: 48.4 %Williamson County: 41 %Winnebago County: 42.7 %Woodford County: 60.6 %
  • Under 42
  • 42 to 49
  • 49 to 52
  • 52 to 56
  • 56 to 62
  • 62 and over
%, 2021. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2021

Scott County: 82.7 %Scott County82.7Johnson County: 79 %Johnson County79Brown County: 79 %Brown County79Mason County: 78.2 %Mason County78.2Cass County: 75.8 %Cass County75.8Pulaski County: 72.9 %Pulaski County72.9Alexander County: 71.3 %Alexander County71.3Christian County: 71.3 %Christian County71.3Massac County: 70.4 %Massac County70.4Perry County: 68 %Perry County68Menard County: 66.8 %Menard County66.8Macoupin County: 66.7 %Macoupin County66.7Carroll County: 64.9 %Carroll County64.9Piatt County: 64.5 %Piatt County64.5Grundy County: 64.3 %Grundy County64.3Logan County: 62.8 %Logan County62.8Schuyler County: 62.7 %Schuyler County62.7McDonough County: 62.4 %McDonough County62.4Hancock County: 62.2 %Hancock County62.2Woodford County: 60.6 %Woodford County60.6Union County: 60.5 %Union County60.5Marion County: 59.9 %Marion County59.9St. Clair County: 59.4 %St. Clair County59.4Jo Daviess County: 59.2 %Jo Daviess County59.2Sangamon County: 58.9 %Sangamon County58.9Lawrence County: 58.7 %Lawrence County58.7Mercer County: 58.5 %Mercer County58.5Ford County: 58 %Ford County58DuPage County: 57.9 %DuPage County57.9Fulton County: 57.7 %Fulton County57.7Greene County: 57.7 %Greene County57.7Richland County: 57 %Richland County57Madison County: 56.9 %Madison County56.9Washington County: 56.5 %Washington County56.5Montgomery County: 56.4 %Montgomery County56.4Champaign County: 55.6 %Champaign County55.6Whiteside County: 55.4 %Whiteside County55.4Knox County: 55.1 %Knox County55.1Crawford County: 55 %Crawford County55Macon County: 54.9 %Macon County54.9Scott County: 82.7 %Scott County82.7Johnson County: 79 %Johnson County79Brown County: 79 %Brown County79Mason County: 78.2 %Mason County78.2Cass County: 75.8 %Cass County75.8Pulaski County: 72.9 %Pulaski County72.9Alexander County: 71.3 %Alexander County71.3Christian County: 71.3 %Christian County71.3Massac County: 70.4 %Massac County70.4Perry County: 68 %Perry County68Menard County: 66.8 %Menard County66.8Macoupin County: 66.7 %Macoupin County66.7Carroll County: 64.9 %Carroll County64.9Piatt County: 64.5 %Piatt County64.5Grundy County: 64.3 %Grundy County64.3Logan County: 62.8 %Logan County62.8Schuyler County: 62.7 %Schuyler County62.7McDonough County: 62.4 %McDonough County62.4Hancock County: 62.2 %Hancock County62.2Woodford County: 60.6 %Woodford County60.6Union County: 60.5 %Union County60.5Marion County: 59.9 %Marion County59.9St. Clair County: 59.4 %St. Clair County59.4Jo Daviess County: 59.2 %Jo Daviess County59.2Sangamon County: 58.9 %Sangamon County58.9Lawrence County: 58.7 %Lawrence County58.7Mercer County: 58.5 %Mercer County58.5Ford County: 58 %Ford County58DuPage County: 57.9 %DuPage County57.9Fulton County: 57.7 %Fulton County57.7Greene County: 57.7 %Greene County57.7Richland County: 57 %Richland County57Madison County: 56.9 %Madison County56.9Washington County: 56.5 %Washington County56.5Montgomery County: 56.4 %Montgomery County56.4Champaign County: 55.6 %Champaign County55.6Whiteside County: 55.4 %Whiteside County55.4Knox County: 55.1 %Knox County55.1Crawford County: 55 %Crawford County55Macon County: 54.9 %Macon County54.9
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)
1Scott County82.7
2Johnson County79
3Brown County79
4Mason County78.2
5Cass County75.8
6Pulaski County72.9
7Alexander County71.3
8Christian County71.3
9Massac County70.4
10Perry County68
11Menard County66.8
12Macoupin County66.7
13Carroll County64.9
14Piatt County64.5
15Grundy County64.3
16Logan County62.8
17Schuyler County62.7
18McDonough County62.4
19Hancock County62.2
20Woodford County60.6
21Union County60.5
22Marion County59.9
23St. Clair County59.4
24Jo Daviess County59.2
25Sangamon County58.9
26Lawrence County58.7
27Mercer County58.5
28Ford County58
29DuPage County57.9
30Fulton County57.7
31Greene County57.7
32Richland County57
33Madison County56.9
34Washington County56.5
35Montgomery County56.4
36Champaign County55.6
37Whiteside County55.4
38Knox County55.1
39Crawford County55
40Macon County54.9
41Edgar County54.7
42Henry County54.3
43Putnam County53.7
44LaSalle County53.3
45Henderson County53.1
46Bureau County53
47Ogle County53
48Cook County52.8
49Jackson County52.6
50Stephenson County52.2
51Jersey County52.1
52Warren County52
53Fayette County51.6
54Kendall County51.5
55Coles County51.3
56Wabash County51.3
57Clinton County51
58Lake County50.8
59McLean County50.8
60White County50.3
61Saline County50.2
62McHenry County50.1
63Tazewell County50.1
64Randolph County49.9
65Kane County49.5
66Calhoun County49.5
67Edwards County49
68Jasper County48.9
69Livingston County48.7
70Will County48.4
71Kankakee County47.8
72Peoria County46.9
73Hamilton County46.7
74Vermilion County46.3
75Iroquois County45.9
76Effingham County45.5
77Shelby County45.2
78Adams County44.7
79Jefferson County44.6
80Moultrie County43.7
81DeKalb County43.5
82Cumberland County42.9
83Winnebago County42.7
84Pike County42.5
85De Witt County42.5
86Williamson County41
87Wayne County40.9
88Bond County40.7
89Morgan County40.5
90Monroe County40.3
91Rock Island County38.5
92Clay County37.6
93Franklin County33.6
94Lee County33.3
95Douglas County33
96Hardin County32.8
97Marshall County31.4
98Clark County31
99Boone County31
100Stark County28.6
101Pope County28.3
102Gallatin County26.3

Other periods

About this ranking

Children aged 3 and 4 enrolled in public or private school, including nursery school and preschool, at any time in the three months before the interview, as a percentage of all children aged 3 and 4. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

Reported by households, so it includes private nursery schools. Small counties have only a few dozen children in the sample, and their rates can swing widely between periods.

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. American Community Survey 5-year estimates, table B14003: children aged 3 and 4 enrolled in public or private school as a percentage of all children aged 3 and 4, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b14003.dat. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). American Community Survey 5-year estimates, table B14003: children aged 3 and 4 enrolled in public or private school as a percentage of all children aged 3 and 4, calculated with stored inputs (Counties in Illinois by school enrolment, children aged 3 and 4, 2021) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b14003.dat

MLA 9

American Community Survey 5-year estimates, table B14003: children aged 3 and 4 enrolled in public or private school as a percentage of all children aged 3 and 4, calculated with stored inputs, Counties in Illinois by school enrolment, children aged 3 and 4, 2021. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b14003.dat. Invokely, https://invokely.ai/rankings/preschool-enrollment-ages-3-4/illinois-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B14003: children aged 3 and 4 enrolled in public or private school as a percentage of all children aged 3 and 4, calculated with stored inputs. Counties in Illinois by school enrolment, children aged 3 and 4, 2021. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b14003.dat. Also distributed by Invokely, https://invokely.ai/rankings/preschool-enrollment-ages-3-4/illinois-counties?period=2021.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B14003: children aged 3 and 4 enrolled in public or private school as a percentage of all children aged 3 and 4, calculated with stored inputs, Counties in Illinois by school enrolment, children aged 3 and 4, 2021 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b14003.dat, via Invokely: https://invokely.ai/rankings/preschool-enrollment-ages-3-4/illinois-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_illinois_by_2021,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B14003: children aged 3 and 4 enrolled in public or private school as a percentage of all children aged 3 and 4, calculated with stored inputs: Counties in Illinois by school enrolment, children aged 3 and 4, 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b14003.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/preschool-enrollment-ages-3-4/illinois-counties?period=2021. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B14003: children aged 3 and 4 enrolled in public or private school as a percentage of all children aged 3 and 4, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary\_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b14003.dat. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B14003: children aged 3 and 4 enrolled in public or private school as a percentage of all children aged 3 and 4, calculated with stored inputs: Counties in Illinois by school enrolment, children aged 3 and 4, 2021
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b14003.dat
L2  - https://invokely.ai/rankings/preschool-enrollment-ages-3-4/illinois-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/preschool-enrollment-ages-3-4/illinois-counties?period=2021.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B14003: children aged 3 and 4 enrolled in public or private school as a percentage of all children aged 3 and 4, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b14003.dat. Retrieved 2026-10-12.
ER  -
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Rank Counties in Illinois by school enrolment, children aged 3 and 4 using official data, and cite the source.
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Questions

Which county has the highest school enrolment, children aged 3 and 4?

Scott County, with 82.7% in 2021, according to the U.S. Census Bureau.

Which county has the lowest school enrolment, children aged 3 and 4?

Gallatin County, with 26.3% 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, American Community Survey 5-year estimates, table B14003: children aged 3 and 4 enrolled in public or private school as a percentage of all children aged 3 and 4, calculated with stored inputs. Retrieved 2026-10-12.

School enrolment, children aged 3 and 4: other rankings

Counties in Illinois: more rankings