#1 Most Diverse Private Schools in St. Clair County, MI
St. Mary/Mccormick Catholic Academy
Diocesan school · Grades Pre-K–8
Largest group: 89% of students
Port Huron, MI
AOverall grade64 students11 students per teacher
2026 lists
Most Diverse Private Schools in St. Clair County, MI
Private schools in St. Clair County, MI with the most varied mix of students. Top 5 of 5 schools.
#2 Most Diverse Private Schools in St. Clair County, MI
New Life Christian Academy
Christian school (nondenominational) · Grades Pre-K–12
Largest group: 91% of students
Kimball, MI
B+Overall grade186 students9 students per teacher
#3 Most Diverse Private Schools in St. Clair County, MI
Immaculate Conception School
Independent Catholic school · Grades Pre-K–8
Largest group: 95% of students
Ira, MI
B-Overall grade148 students16 students per teacher
#4 Most Diverse Private Schools in St. Clair County, MI
St. Edward On-The-Lake Catholic School
Diocesan school · Grades Pre-K–5
Largest group: 96% of students
Lakeport, MI
A-Overall grade74 students11 students per teacher
#5 Most Diverse Private Schools in St. Clair County, MI
Cardinal Mooney Catholic
Diocesan school · Grades 9–12
Largest group: 97% of students
Marine City, MI
B+Overall grade168 students11 students per teacher
From official public records, updated October 2026.