Keystone Montessori School
PrivateElementaryGrades PK–6Nonsectarian
55 Middlesex St, North Chelmsford, MA 01863 · (978) 251-2929
Chelmsford’s School Grade B+ better than 73% of Massachusetts school districts
Students
75
Students per teacher
6:1
Setting
Suburb
Grades
PK–6
What stands out about Keystone Montessori School
- Small classes: 6 students per teacher
- Private school: it doesn’t take Massachusetts’s state tests
Location
Directions ↗55 Middlesex St, North Chelmsford
Students
Enrollment by grade
Pre-K53
Kindergarten9
Grade 15
Grade 21
Grade 31
Grade 42
Grade 53
Grade 61
Who goes here
White 41%Asian 32%Two or more races 18%Hispanic 5%Black 5%
As reported to NCES, share of students with a reported race or ethnicity.
Parents talk
Questions and answers about Keystone Montessori School from Chelmsford families.
School facts: U.S. Department of Education (NCES), 2023–2024 school year. Map: © OpenStreetMap contributors.