The ranking below is based on the percentage of schools within a county which have placed in the top 10% of all schools statewide.
A school's overall rank is based on its combined math and reading proficiency test score ranking. Schools are ranked and compared within their own state only.
Statewide Range: 26%
44%
Avg. Statewide: 32%
Top-Ranked Counties With Best Public Schools in Illinois (2026-27)
County
% of Schools in
Top 10% Statewide
Top 10% Statewide
Top-Ranked Schools
(Math Proficiency % | Reading Proficiency %)
(Math Proficiency % | Reading Proficiency %)
Rank: #11.
44%
(7 out of 16)
(7 out of 16)
- Bartelso Elementary School
Rank: #103 of 3,542 (Top 5%)
(Math: 55-59% | Reading: 75-79%) - Germantown Elementary School
Rank: #129 of 3,542 (Top 5%)
(Math: 55-59% | Reading: 65-69%) - Aviston Elementary School
Rank: #149 of 3,542 (Top 5%)
(Math: 64% | Reading: 59%) - View Full List of Top-Ranked Clinton County, IL Schools
Rank: #2-32 - 3.
26%
(73 out of 279)
(73 out of 279)
- Oak Elementary School
Rank: #7 of 3,542 (Top 1%)
(Math: 85-89% | Reading: 85-89%) - The Lane Elementary School
Rank: #13 of 3,542 (Top 1%)
(Math: 85-89% | Reading: 80-84%) - Elm Elementary School
Rank: #15 of 3,542 (Top 1%)
(Math: 80-84% | Reading: 80-84%) - View Full List of Top-Ranked Dupage County, IL Schools
Rank: #2-32 - 3.
26%
(58 out of 221)
(58 out of 221)
- Adlai E Stevenson High School
Rank: #29 of 3,542 (Top 1%)
(Math: 73% | Reading: 72%) - Daniel Wright Jr High School
Rank: #31 of 3,542 (Top 1%)
(Math: 76% | Reading: 71%) - Hough Street Elementary School
Rank: #31 of 3,542 (Top 1%)
(Math: 70-74% | Reading: 70-74%) - View Full List of Top-Ranked Lake County, IL Schools
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