The choir sings for liturgical services at St. Paul's Church and performs primarily in and around the Boston area.

St. Paul's Choir School was founded in 1963 by Theodore Marier and Monsignor Augustine F. Hickey[1] as the result of the Vatican's 1958 Instruction on Sacred Music and Sacred Liturgy De musica sacra, which declared that every effort should be made that city center churches have their own boys' choir school.

St. Paul's Choir School started in September with twenty-five fifth- through eighth-grade students chosen from throughout the Archdiocese of Boston.

[3] He combined the roles of director of music of St. Paul Church and headmaster of the school, leading the choir in recordings, concerts, and tours throughout the final years of the twentieth century.

John Dunn announced his retirement in 2008 and, after a year-long search process, was succeeded as Director of Music by his long-time assistant, Jennifer Lester.

In 2010, after an international search, John Robinson (Church Musician), then Assistant Organist at Canterbury Cathedral, was appointed Director of Music.

In 2015 the Choir of St. Paul's Church came to national and international recognition after the release of their album Christmas in Harvard Square on the AimHigher Recordings label.

John Robinson resigned as the Director of Music after his 9th year of teaching at the school in June 2019 and moved to Blackburn Cathedral in England.

Students attend the choir school full-time, completing a rigorous academic program in addition to daily rehearsals and singing for the liturgy several times each week.

Each student's tuition is supplemented by a "working scholarship," whereby the choristers are expected to sing at weddings, funerals and concerts throughout the school year.

Students commute to Harvard Square from various cities and towns throughout the greater Boston area, sometimes traveling more than an hour each way.

The choir has sung at Mass on multiple occasions at the Basilica of the National Shrine in Washington, DC, most recently in January 2020.