#1 Best Catholic Schools in the Archdiocese of Denver
St. Stephen Catholic School
Diocesan school · Grades Pre-K–8
Smaller classes than 92% of Catholic schools in Colorado
Glenwood Springs, CO
A+Overall grade162 students7 students per teacher
2026 lists
Best Catholic Schools in the Archdiocese of Denver
The highest-graded schools of this kind in the Archdiocese of Denver. Top 34 of 34 schools.
#2 Best Catholic Schools in the Archdiocese of Denver
Sacred Heart of Jesus School
Parish school · Grades Pre-K–8
The only Catholic school in Boulder
Boulder, CO
A+Overall grade169 students6 students per teacher
#3 Best Catholic Schools in the Archdiocese of Denver
Bishop Machebeuf High School
Diocesan school · Grades 9–12
Smaller classes than 86% of Catholic schools nationwide
Denver, CO
A+Overall grade164 students8 students per teacher
#4 Best Catholic Schools in the Archdiocese of Denver
St. Mary's Academy
Independent Catholic school · Grades Pre-K–12
One of the 3 largest Catholic schools in Colorado
Englewood, CO
A+Overall grade664 students9 students per teacher
#5 Best Catholic Schools in the Archdiocese of Denver
St. John the Baptist Catholic School
Diocesan school · Grades Pre-K–8
The only Catholic school in Longmont
Longmont, CO
A+Overall grade185 students10 students per teacher
#6 Best Catholic Schools in the Archdiocese of Denver
St. Vincent De Paul Catholic School
Diocesan school · Grades K–8
Smaller classes than 77% of Catholic schools in Colorado
Denver, CO
A+Overall grade372 students8 students per teacher
#7 Best Catholic Schools in the Archdiocese of Denver
St. John the Evangelist Catholic School
Parish school · Grades Pre-K–8
The only Catholic school in Loveland
Loveland, CO
A+Overall grade143 students9 students per teacher
#8 Best Catholic Schools in the Archdiocese of Denver
St. Pius X Catholic School
Parish school · Grades Pre-K–8
The only Catholic school in Aurora
Aurora, CO
A+Overall grade170 students11 students per teacher
#9 Best Catholic Schools in the Archdiocese of Denver
St. Louis Catholic School
Parish school · Grades Pre-K–8
The only Catholic school in Louisville
Louisville, CO
A+Overall grade93 students8 students per teacher
#10 Best Catholic Schools in the Archdiocese of Denver
Our Lady Help of Christians Academy
Parish school · Grades K–12
Smaller classes than 84% of Catholic schools nationwide
Watkins, CO
A+Overall grade115 students7 students per teacher
#11 Best Catholic Schools in the Archdiocese of Denver
Notre Dame Parish School
Diocesan school · Grades Pre-K–8
Serving families in Denver since at least 2011
Denver, CO
A+Overall grade169 students12 students per teacher
#12 Best Catholic Schools in the Archdiocese of Denver
Mullen High School
Independent Catholic school · Grades 9–12
The largest of 47 Catholic schools in Colorado
Denver, CO
A+Overall grade753 students13 students per teacher
#13 Best Catholic Schools in the Archdiocese of Denver
Our Lady of Fatima Catholic School
Parish school · Grades Pre-K–8
Serving families in Lakewood since at least 2011
Lakewood, CO
A+Overall grade189 students11 students per teacher
#14 Best Catholic Schools in the Archdiocese of Denver
St. Clare of Assisi Catholic School
Parish school · Grades K–8
The only Catholic school in Edwards
Edwards, CO
A+Overall grade91 students7 students per teacher
#15 Best Catholic Schools in the Archdiocese of Denver
Wellspring Catholic Academy of St. Bernadette
Parish school · Grades Pre-K–8
Smaller classes than 90% of Catholic schools in Colorado
Lakewood, CO
A+Overall grade60 students7 students per teacher
#16 Best Catholic Schools in the Archdiocese of Denver
Annunciation
Parish school · Grades K–8
Serving families in Denver since at least 2011
Denver, CO
AOverall grade161 students12 students per teacher
#17 Best Catholic Schools in the Archdiocese of Denver
Chesterton Academy of Our Lady of Victory
Independent Catholic school · Grades 9–12
Smaller classes than 93% of Catholic schools nationwide
Centennial, CO
AOverall grade76 students6 students per teacher
#18 Best Catholic Schools in the Archdiocese of Denver
Blessed Sacrament Parish School
Diocesan school · Grades Pre-K–8
Smaller classes than 67% of Catholic schools in Colorado
Denver, CO
AOverall grade327 students10 students per teacher
#19 Best Catholic Schools in the Archdiocese of Denver
Our Lady of Loreto Catholic School
Parish school · Grades Pre-K–8
Growing: enrollment up 108% since 2015–16
Foxfield, CO
A-Overall grade391 students13 students per teacher
#20 Best Catholic Schools in the Archdiocese of Denver
Escuela De Guadalupe
Independent Catholic school · Grades Pre-K–8
Growing: enrollment up 66% since 2011–12
Denver, CO
A-Overall grade189 students12 students per teacher
#21 Best Catholic Schools in the Archdiocese of Denver
St. Joseph Catholic School
Parish school · Grades Pre-K–8
The only Catholic school in Fort Collins
Fort Collins, CO
A-Overall grade178 students13 students per teacher
#22 Best Catholic Schools in the Archdiocese of Denver
St. Mary Catholic School
Diocesan school · Grades Pre-K–8
The only Catholic school in Greeley
Greeley, CO
A-Overall grade153 students13 students per teacher
#23 Best Catholic Schools in the Archdiocese of Denver
Assumption Catholic School
Diocesan school · Grades Pre-K–8
Smaller classes than 62% of Catholic schools in Colorado
Denver, CO
A-Overall grade128 students11 students per teacher
#24 Best Catholic Schools in the Archdiocese of Denver
St. James Catholic School
Diocesan school · Grades Pre-K–8
Growing: enrollment up 26% since 2011–12
Denver, CO
B+Overall grade193 students13 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.