#1 Best Private Schools in the Diocese of Tucson
Immaculate Heart Academy
Independent Catholic school · Grades Pre-K–8
The only Catholic school in Oro Valley
Oro Valley, AZ
A+Overall grade136 students13 students per teacher
2026 lists
Best Private Schools in the Diocese of Tucson
Private schools in the Diocese of Tucson with the highest overall grades. Top 20 of 20 schools.
#2 Best Private Schools in the Diocese of Tucson
St. Elizabeth Ann Seton School
Parish school · Grades Pre-K–8
The smallest classes of any Catholic school in Tucson
Tucson, AZ
A+Overall grade298 students11 students per teacher
#3 Best Private Schools in the Diocese of Tucson
St. Augustine Catholic High School
Diocesan school · Grades 9–12
95% of graduates go to four-year colleges
Tucson, AZ
A+Overall grade276 students12 students per teacher
#4 Best Private Schools in the Diocese of Tucson
St. Anthony of Padua Catholic School
Independent Catholic school · Grades Pre-K–8
Smaller classes than 83% of Catholic schools in Arizona
Casa Grande, AZ
A+Overall grade153 students11 students per teacher
#5 Best Private Schools in the Diocese of Tucson
St. Cyril Elementary School
Diocesan school · Grades K–8
Smaller classes than 73% of Catholic schools in Arizona
Tucson, AZ
A+Overall grade359 students12 students per teacher
#6 Best Private Schools in the Diocese of Tucson
All Saints Catholic School
Parish school · Grades Pre-K–8
The only Catholic school in Sierra Vista
Sierra Vista, AZ
A+Overall grade93 students10 students per teacher
#7 Best Private Schools in the Diocese of Tucson
Our Mother of Sorrows Catholic School
Parish school · Grades Pre-K–8
Serving families in Tucson since at least 2011
Tucson, AZ
AOverall grade213 students15 students per teacher
#8 Best Private Schools in the Diocese of Tucson
Santa Cruz Catholic School
Diocesan school · Grades K–8
Serving families in Tucson since at least 2011
Tucson, AZ
B+Overall grade152 students17 students per teacher
#9 Best Private Schools in the Diocese of Tucson
San Miguel High School
Independent Catholic school · Grades 9–12
Smaller classes than 80% of Catholic schools in Arizona
Tucson, AZ
BOverall grade293 students11 students per teacher
#10 Best Private Schools in the Diocese of Tucson
St. Charles Apache Mission School
Diocesan school · Grades K–6
Serving families in San Carlos since at least 2011
San Carlos, AZ
BOverall grade115 students16 students per teacher
#11 Best Private Schools in the Diocese of Tucson
St. Francis of Assisi School
Parish school · Grades Pre-K–8
The smallest classes of any Catholic school in Yuma
Yuma, AZ
BOverall grade243 students17 students per teacher
#12 Best Private Schools in the Diocese of Tucson
St. John the Evangelist Catholic School
Diocesan school · Grades K–8
Growing: enrollment up 167% since 2011–12
Tucson, AZ
BOverall grade392 students16 students per teacher
#13 Best Private Schools in the Diocese of Tucson
Salpointe Catholic High School
Independent Catholic school · Grades 9–12
One of the 3 largest Catholic schools in Arizona
Tucson, AZ
BOverall grade1,305 students14 students per teacher
#14 Best Private Schools in the Diocese of Tucson
Yuma Catholic High School
Independent Catholic school · Grades 9–12
The largest Catholic school in Yuma
Yuma, AZ
BOverall grade517 students19 students per teacher
#15 Best Private Schools in the Diocese of Tucson
Lourdes Catholic School
Independent Catholic school · Grades Pre-K–12
100% of graduates go to four-year colleges
Nogales, AZ
BOverall grade292 students17 students per teacher
#16 Best Private Schools in the Diocese of Tucson
Saints Peter & Paul School
Diocesan school · Grades K–8
One of 10 Catholic schools in Tucson
Tucson, AZ
B-Overall grade344 students17 students per teacher
#17 Best Private Schools in the Diocese of Tucson
Immaculate Conception Catholic School
Parish school · Grades Pre-K–8
One of 3 Catholic schools in Yuma
Yuma, AZ
B-Overall grade227 students19 students per teacher
#18 Best Private Schools in the Diocese of Tucson
Loretto Catholic School
Parish school · Grades K–8
Serving families in Douglas since at least 2011
Douglas, AZ
B-Overall grade222 students25 students per teacher
#19 Best Private Schools in the Diocese of Tucson
St. Ambrose School
Diocesan school · Grades Pre-K–8
One of 10 Catholic schools in Tucson
Tucson, AZ
B-Overall grade218 students18 students per teacher
#20 Best Private Schools in the Diocese of Tucson
Sacred Heart Catholic School
Parish school · Grades Pre-K–8
Growing: enrollment up 30% since 2019–20
Nogales, AZ
B-Overall grade201 students22 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.