For the 2026 school year, there are 882 religiously affiliated private schools serving 189,011 students in Illinois (54% of all schools).
The average tuition cost is $9,150, which is lower than the Illinois private school average tuition cost of $12,511.
The most common religiously affiliated schools are Catholic (48% of schools), Christian (16% of schools) and Lutheran Church Missouri Synod (13% of schools).
Top-Ranked Illinois ²ÝÁñÉçÇø Schools by Religious Affiliation (2026)
Religious Affiliation
# Schools
# Students
% Minority
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