High School Placement Test

St. Mary's is an authorized testing site for the High School Placement Test.

Registration must be done through the Archdiocese of Boston through the link below.
St. Mary’s High School Code for the Placement Test is 528


Register for High School Placement

Testing days begin at 8:00 a.m. It is recommended that the student arrives no later than a half hour prior to the test. The test will last a total of 3 hours; students may be picked up at 11:30 a.m.

NOTE: As of January 1, 2024, all HSPT exams must be scheduled directly through St. Mary's Admissions Office. Please call 781-586-2008 or email admissions@stmaryslynn.com.