Serving 454 students in grades Prekindergarten-8, Conservatory Lab Charter School ranks in the bottom 50% of all schools in Massachusetts for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 29% (which is lower than the Massachusetts state average of 42%). The percentage of students achieving proficiency in reading/language arts is 37% (which is lower than the Massachusetts state average of 44%).
The student-teacher ratio of 17:1 is higher than the Massachusetts state level of 12:1.
Minority enrollment is 96% of the student body (majority Black), which is higher than the Massachusetts state average of 49% (majority Hispanic and Black).
Quick Facts (2026-27)
- School Type: Charter School
- Grades: Prekindergarten-8
- Enrollment: 454 students
- Student-Teacher Ratio: 17:1
- Minority Enrollment: 96%
- Overall Testing Rank: Bottom 50% in MA
- Math Proficiency: 29% (Btm 50%)
- Reading Proficiency: 37% (Btm 50%)
- Science Proficiency: 30-34% (Btm 50%)
- Source: National Center for Education Statistics (NCES), MA Dept. of Education
School Overview
Conservatory Lab Charter School's student population of 454 students has stayed relatively flat over five school years.
The teacher population of 27 teachers has declined by 6% over five school years.
School Type
Grades Offered
Grades Prekindergarten-8
(Supplemental Virtual)
(Supplemental Virtual)
Total Students
454 students
Total Classroom Teachers
27 teachers
Year Founded
1998
School Calendar
School Rankings
Conservatory Lab Charter School ranks within the bottom 50% of all 1,626 schools in Massachusetts (based off of combined math and reading proficiency testing data).
The diversity score of Conservatory Lab Charter School is 0.59, which is less than the diversity score at state average of 0.66. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#1107 out of 1626 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
29%
42%
Reading/Language Arts Test Scores (% Proficient)
37%
44%
Science Test Scores (% Proficient)
30-34%
44%
Student-Teacher Ratio
17:1
12:1
American Indian
1%
n/a
Asian
1%
8%
Hispanic
41%
26%
Black
50%
10%
White
4%
51%
Hawaiian
n/a
n/a
Two or more races
3%
5%
All Ethnic Groups
Chronically Absent Students
(22-23)21.8%
22.8%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
43%
34%
Eligible for Reduced Lunch
12%
4%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), MA Dept. of Education
Frequently Asked Questions
What is Conservatory Lab Charter School's ranking?
Conservatory Lab Charter School is ranked #1107 out of 1,626 schools, which ranks it among the bottom 50% of public schools in Massachusetts.
What schools are Conservatory Lab Charter School often compared to?
Conservatory Lab Charter Schoolis often viewed alongside schools like Boston Renaissance Charter Public School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
29% of students have achieved math proficiency (compared to the 42% MA state average), while 37% of students have achieved reading proficiency (compared to the 44% MA state average).
How many students attend Conservatory Lab Charter School?
454 students attend Conservatory Lab Charter School.
What is the racial composition of the student body?
50% of Conservatory Lab Charter School students are Black, 41% of students are Hispanic, 4% of students are White, 3% of students are Two or more races, 1% of students are American Indian, and 1% of students are Asian.
What is the student-teacher ratio of Conservatory Lab Charter School?
Conservatory Lab Charter School has a student ration of 17:1, which is higher than the Massachusetts state average of 12:1.
What grades does Conservatory Lab Charter School offer ?
Conservatory Lab Charter School offers enrollment in grades Prekindergarten-8 (Supplemental Virtual).
What school district is Conservatory Lab Charter School part of?
Conservatory Lab Charter School is part of Conservatory Lab Charter School District.
In what neighborhood is Conservatory Lab Charter School located?
Conservatory Lab Charter School is located in the Cedar Grove neighborhood of Dorchester, MA.
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