The bulletin board for America's public schools. Parents, teachers, students, and staff. One community per school.
County rankings · Highest ratio

Illinois: the counties with the highest student-to-teacher ratios

89 counties

Illinois public school districts ranked by the highest county-wide student-to-teacher ratio. Counties need at least 3 schools and 1,000 students to qualify.

#CountyStateSchoolsStudentsRatio
1Macon CountyIL3414,70216.3:1
2Winnebago CountyIL8144,10316.1:1
3Hamilton CountyIL41,09115.5:1
4Cass CountyIL82,35215.4:1
5Monroe CountyIL125,00615.3:1
6Madison CountyIL7135,25315.1:1
7Jersey CountyIL62,37715.0:1
8Rock Island CountyIL4821,92115.0:1
9Richland CountyIL42,14514.9:1
10Jasper CountyIL41,19714.8:1
11Kendall CountyIL4129,77314.8:1
12Kane CountyIL12987,25214.7:1
13Grundy CountyIL2212,07014.6:1
14Peoria CountyIL6527,82714.6:1
15Vermilion CountyIL3311,26714.6:1
16Adams CountyIL198,71714.5:1
17St. Clair CountyIL8540,87914.4:1
18Coles CountyIL135,97314.3:1
19Kankakee CountyIL3716,49914.2:1
20Will CountyIL177113,00814.2:1
21Moultrie CountyIL61,62814.1:1
22Wabash CountyIL51,51314.1:1
23Tazewell CountyIL5218,58114.0:1
24Christian CountyIL184,74013.9:1
25Sangamon CountyIL6727,34513.9:1
26Woodford CountyIL206,33813.8:1
27McLean CountyIL5423,75913.7:1
28Whiteside CountyIL288,44513.7:1
29Williamson CountyIL219,70013.7:1
30Champaign CountyIL5625,91913.6:1
31Clinton CountyIL195,27813.6:1
32Lee CountyIL133,77813.6:1
33McHenry CountyIL8350,12313.6:1
34Cook CountyIL1,271697,93413.5:1
35DeKalb CountyIL3916,32813.5:1
36DuPage CountyIL239138,55713.4:1
37Henry CountyIL257,72313.4:1
38Perry CountyIL82,54513.4:1
39Boone CountyIL168,99313.3:1
40Cumberland CountyIL51,49313.3:1
41Ogle CountyIL228,26913.3:1
42Randolph CountyIL133,87613.3:1
43Effingham CountyIL155,06313.2:1
44Clark CountyIL82,45613.1:1
45Johnson CountyIL71,74313.1:1
46Macoupin CountyIL267,22113.1:1
47Knox CountyIL176,35913.0:1
48Stephenson CountyIL206,09213.0:1
49Warren CountyIL102,78813.0:1
50White CountyIL102,16813.0:1

See the national highest ratio ranking →