#1 Best Catholic Schools in the Diocese of Rockford
Rosary High School
Independent Catholic school · Grades 9–12
The only all-girls school in Aurora
Aurora, IL
A+Overall gradeAll girls220 students11 students per teacher
2026 lists
Best Catholic Schools in the Diocese of Rockford
The highest-graded schools of this kind in the Diocese of Rockford. Top 30 of 30 schools.
#2 Best Catholic Schools in the Diocese of Rockford
St. Edward Central Catholic High School
Diocesan school · Grades 9–12
The largest Catholic school in Elgin
Elgin, IL
A+Overall grade207 students10 students per teacher
#3 Best Catholic Schools in the Diocese of Rockford
St. Mary School
Diocesan school · Grades Pre-K–8
Smaller classes than 78% of Catholic schools in Illinois
Elgin, IL
A+Overall grade111 students10 students per teacher
#4 Best Catholic Schools in the Diocese of Rockford
SS Peter & Paul School
Parish school · Grades Pre-K–8
Smaller classes than 78% of Catholic schools in Illinois
Cary, IL
A+Overall grade167 students10 students per teacher
#5 Best Catholic Schools in the Diocese of Rockford
St. Thomas More Elementary School
Diocesan school · Grades Pre-K–8
Smaller classes than 60% of Catholic schools in Illinois
Elgin, IL
A+Overall grade145 students12 students per teacher
#6 Best Catholic Schools in the Diocese of Rockford
St. Thomas the Apostle School
Diocesan school · Grades Pre-K–8
The only Catholic school in Crystal Lake
Crystal Lake, IL
A+Overall grade164 students9 students per teacher
#7 Best Catholic Schools in the Diocese of Rockford
St. Mary Catholic School
Diocesan school · Grades Pre-K–8
Smaller classes than 71% of Catholic schools in Illinois
Woodstock, IL
A+Overall grade125 students10 students per teacher
#8 Best Catholic Schools in the Diocese of Rockford
St. Andrew Catholic Elementary School
Diocesan school · Grades Pre-K–8
Smaller classes than 86% of Catholic schools in Illinois
Rock Falls, IL
A+Overall grade84 students9 students per teacher
#9 Best Catholic Schools in the Diocese of Rockford
Our Lady Sacred Heart Academy
Independent Catholic school · Grades Pre-K–12
The smallest classes of any Catholic school in Rockford
Rockford, IL
A+Overall grade86 students6 students per teacher
#10 Best Catholic Schools in the Diocese of Rockford
St. Charles Borromeo Catholic School
Parish school · Grades Pre-K–8
Smaller classes than 98% of Catholic schools in Illinois
Hampshire, IL
A+Overall grade63 students5 students per teacher
#11 Best Catholic Schools in the Diocese of Rockford
St. Mary Catholic School
Diocesan school · Grades Pre-K–7
Smaller classes than 87% of Catholic schools in Illinois
Sycamore, IL
A+Overall grade82 students8 students per teacher
#12 Best Catholic Schools in the Diocese of Rockford
Boylan Catholic H. S.
Diocesan school · Grades 9–12
The largest Catholic school in Rockford
Rockford, IL
A+Overall grade586 students13 students per teacher
#13 Best Catholic Schools in the Diocese of Rockford
Marian Central Catholic High School
Diocesan school · Grades 9–12
99% of graduates go to four-year colleges
Woodstock, IL
A+Overall grade294 students12 students per teacher
#14 Best Catholic Schools in the Diocese of Rockford
Montini Catholic School
Diocesan school · Grades Pre-K–8
Smaller classes than 64% of Catholic schools in Illinois
McHenry, IL
A+Overall grade196 students11 students per teacher
#15 Best Catholic Schools in the Diocese of Rockford
Aurora Central Catholic High School
Diocesan school · Grades 9–12
The largest Catholic school in Aurora
Aurora, IL
AOverall grade452 students12 students per teacher
#16 Best Catholic Schools in the Diocese of Rockford
Aquin Elementary Junior Senior High School
Parish school · Grades Pre-K–12
Smaller classes than 82% of Catholic schools nationwide
Freeport, IL
AOverall grade127 students7 students per teacher
#17 Best Catholic Schools in the Diocese of Rockford
Holy Family Catholic School
Parish school · Grades Pre-K–8
Serving families in Rockford since at least 2011
Rockford, IL
AOverall grade321 students13 students per teacher
#18 Best Catholic Schools in the Diocese of Rockford
St. Rita of Cascia School
Diocesan school · Grades Pre-K–8
Serving families in Aurora since at least 2011
Aurora, IL
AOverall grade160 students13 students per teacher
#19 Best Catholic Schools in the Diocese of Rockford
St. Edward Catholic Preparatory Academy
Diocesan school · Grades Pre-K–8
Smaller classes than 98% of Catholic schools in Illinois
Elgin, IL
A-Overall grade90 students5 students per teacher
#20 Best Catholic Schools in the Diocese of Rockford
Annunciation of the BVM School
Diocesan school · Grades Pre-K–8
One of 7 Catholic schools in Aurora
Aurora, IL
A-Overall grade142 students13 students per teacher
#21 Best Catholic Schools in the Diocese of Rockford
Marmion Academy
Independent Catholic school · Grades 9–12
The only all-boys school in Aurora
Aurora, IL
A-Overall gradeAll boys423 students13 students per teacher
#22 Best Catholic Schools in the Diocese of Rockford
St. Peter School
Diocesan school · Grades Pre-K–8
Smaller classes than 64% of Catholic schools in Illinois
Geneva, IL
B+Overall grade235 students11 students per teacher
#23 Best Catholic Schools in the Diocese of Rockford
St. Bridget School
Diocesan school · Grades Pre-K–8
Serving families in Loves Park since at least 2011
Loves Park, IL
B+Overall grade370 students15 students per teacher
#24 Best Catholic Schools in the Diocese of Rockford
St. Catherine of Siena Elementary School
Parish school · Grades Pre-K–8
Serving families in West Dundee since at least 2011
West Dundee, IL
B+Overall grade185 students14 students per teacher
Grades compare each school's official facts, such as class size, how long it has served families and where graduates go, with similar schools. They're a starting point: visit, ask questions and trust what you see.