#1 Best Private Schools in the Diocese of Phoenix
St. Mary-Basha Catholic School
Diocesan school · Grades Pre-K–8
Smaller classes than 78% of Catholic schools in Arizona
Chandler, AZ
A+Overall grade366 students12 students per teacher
2026 lists
Best Private Schools in the Diocese of Phoenix
Private schools in the Diocese of Phoenix with the highest overall grades. Top 37 of 37 schools.
#2 Best Private Schools in the Diocese of Phoenix
Immaculate Conception Catholic School
Diocesan school · Grades Pre-K–8
The only Catholic school in Cottonwood
Cottonwood, AZ
A+Overall grade175 students9 students per teacher
#3 Best Private Schools in the Diocese of Phoenix
Our Lady of Perpetual Help Catholic School
Parish school · Grades Pre-K–8
Smaller classes than 93% of Catholic schools in Arizona
Scottsdale, AZ
A+Overall grade292 students10 students per teacher
#4 Best Private Schools in the Diocese of Phoenix
St. Anthony School
Independent Catholic school · Grades Pre-K–8
The only Catholic school in Show Low
Show Low, AZ
A+Overall grade131 students12 students per teacher
#5 Best Private Schools in the Diocese of Phoenix
St. Teresa Catholic School
Diocesan school · Grades Pre-K–8
Smaller classes than 98% of Catholic schools in Arizona
Phoenix, AZ
A+Overall grade293 students9 students per teacher
#6 Best Private Schools in the Diocese of Phoenix
Sacred Heart Catholic School
Diocesan school · Grades Pre-K–8
The only Catholic school in Prescott
Prescott, AZ
A+Overall grade111 students10 students per teacher
#7 Best Private Schools in the Diocese of Phoenix
Bourgade Catholic High School
Diocesan school · Grades 9–12
Smaller classes than 90% of Catholic schools in Arizona
Phoenix, AZ
A+Overall grade330 students10 students per teacher
#8 Best Private Schools in the Diocese of Phoenix
Our Lady of Sorrow Academy
Parish school · Grades K–12
The smallest classes of any Catholic school in Phoenix
Phoenix, AZ
A+Overall grade153 students8 students per teacher
#9 Best Private Schools in the Diocese of Phoenix
Christ the King School
Diocesan school · Grades Pre-K–8
Serving families in Mesa since at least 2011
Mesa, AZ
A+Overall grade185 students15 students per teacher
#10 Best Private Schools in the Diocese of Phoenix
St. Agnes Catholic School
Diocesan school · Grades Pre-K–8
Smaller classes than 76% of Catholic schools in Arizona
Phoenix, AZ
A+Overall grade148 students12 students per teacher
#11 Best Private Schools in the Diocese of Phoenix
St. Jerome Elementary School
Diocesan school · Grades Pre-K–8
Smaller classes than 68% of Catholic schools in Arizona
Phoenix, AZ
A+Overall grade160 students13 students per teacher
#12 Best Private Schools in the Diocese of Phoenix
San Francisco De Asis
Diocesan school · Grades Pre-K–8
The only Catholic school in Flagstaff
Flagstaff, AZ
A+Overall grade176 students14 students per teacher
#13 Best Private Schools in the Diocese of Phoenix
Annunciation Catholic School
Parish school · Grades K–8
The only Catholic school in Cave Creek
Cave Creek, AZ
AOverall grade245 students16 students per teacher
#14 Best Private Schools in the Diocese of Phoenix
St. Timothy Catholic School
Diocesan school · Grades K–8
The smallest classes of any Catholic school in Mesa
Mesa, AZ
AOverall grade190 students14 students per teacher
#15 Best Private Schools in the Diocese of Phoenix
Brophy College Preparatory
Independent Catholic school · Grades 6–12
The largest of 57 Catholic schools in Arizona
Phoenix, AZ
AOverall gradeAll boys1,402 students13 students per teacher
#16 Best Private Schools in the Diocese of Phoenix
St. Thomas Aquinas
Parish school · Grades Pre-K–8
One of 2 Catholic schools in Avondale
Avondale, AZ
AOverall grade458 students15 students per teacher
#17 Best Private Schools in the Diocese of Phoenix
Our Lady of Perpetual Help Catholic School
Independent Catholic school · Grades Pre-K–8
Smaller classes than 63% of Catholic schools in Arizona
Glendale, AZ
AOverall grade276 students14 students per teacher
#18 Best Private Schools in the Diocese of Phoenix
Seton Catholic Preparatory
Diocesan school · Grades 9–12
Serving families in Chandler since at least 2011
Chandler, AZ
A-Overall grade559 students14 students per teacher
#19 Best Private Schools in the Diocese of Phoenix
Our Lady of the Lake Catholic School
Diocesan school · Grades Pre-K–7
A Catholic school in Lake Havasu City
Lake Havasu City, AZ
A-Overall grade112 students16 students per teacher
#20 Best Private Schools in the Diocese of Phoenix
Xavier College Preparatory
Diocesan school · Grades 9–12
One of the 3 largest Catholic schools in Arizona
Phoenix, AZ
A-Overall gradeAll girls1,123 students14 students per teacher
#21 Best Private Schools in the Diocese of Phoenix
St. Mary's Catholic High School
Diocesan school · Grades 9–12
90% of graduates go to four-year colleges
Phoenix, AZ
B+Overall grade487 students13 students per teacher
#22 Best Private Schools in the Diocese of Phoenix
St. Louis the King Roman Catholic School
Diocesan school · Grades Pre-K–8
Serving families in Glendale since at least 2011
Glendale, AZ
B+Overall grade196 students18 students per teacher
#23 Best Private Schools in the Diocese of Phoenix
St. Gregory School
Diocesan school · Grades Pre-K–8
One of 16 Catholic schools in Phoenix
Phoenix, AZ
B+Overall grade353 students16 students per teacher
#24 Best Private Schools in the Diocese of Phoenix
SS Simon and Jude Cathedral School
Diocesan school · Grades Pre-K–8
Serving families in Phoenix since at least 2011
Phoenix, AZ
B+Overall grade424 students19 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.