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Costello Elementary School is a top rated, public school located in Troy, MI. It has 362 students in grades PK, K-5 with a student-teacher ratio of 14 to 1. According to state test scores, 62% of students are at least proficient in math and 72% in reading.


Costello Elementary School is the proud home of the Cardinals.



Costello Elementary School Ranked #23 in Best Public Elementary Schools in Michigan by Niche (out of 1394 schools). A+ Overall Grade; A for Academics; A- for Diversity; A+ for Teachers. Public K-5 Elementary located in Troy, MI - Approximately 362 Students


Attendance Line: (248) 823-3701. Main Office: (248) 823-3700.

Address: 1333 Hamman Drive, Troy, MI 48085 - Troy School District