Serving 507 students in grades 9-12, Plainfield High School ranks in the bottom 50% of all schools in Connecticut for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 15-19% (which is lower than the Connecticut state average of 40%). The percentage of students achieving proficiency in reading/language arts is 40-44% (which is lower than the Connecticut state average of 50%).
The student:teacher ratio of 10:1 is lower than the Connecticut state level of 12:1.
Minority enrollment is 18% of the student body (majority Hispanic), which is lower than the Connecticut state average of 53% (majority Hispanic).
Quick Stats (2025)
Grades: 9-12
Enrollment: 507 students
Student:Teacher Ratio: 10:1
Minority Enrollment: 18%
Graduation Rate
: 80-84% (Btm 50% in CT)
Overall Testing Rank
: Bottom 50%
Math Proficiency
: 15-19% (Btm 50%)
Reading Proficiency
: 40-44% (Btm 50%)
Science Proficiency
: 20-24% (Btm 50%)
Source: National Center for Education Statistics (NCES), CT Dept. of Education
Plainfield High School ranks within the bottom 50% of all 942 schools in Connecticut (based off of combined math and reading proficiency testing data).
The diversity score of Plainfield High School is 0.32, which is less than the diversity score at state average of 0.68. The school's diversity has stayed relatively flat over five school years.
What percent of students have achieved state testing proficiency in math and reading?
15-19% of students have achieved math proficiency (compared to the 40% CT state average), while 40-44% of students have achieved reading proficiency (compared to the 50% CT state average).
What is the graduation rate of Plainfield High School?
The graduation rate of Plainfield High School is 80-84%, which is lower than the Connecticut state average of 89%.
How many students attend Plainfield High School?
507 students attend Plainfield High School.
What is the racial composition of the student body?
82% of Plainfield High School students are White, 9% of students are Hispanic, 4% of students are Black, 2% of students are Asian, 1% of students are American Indian, 1% of students are Hawaiian, and 1% of students are Two or more races.
What is the student:teacher ratio of Plainfield High School?
Plainfield High School has a student ration of 10:1, which is lower than the Connecticut state average of 12:1.
What grades does Plainfield High School offer ?
Plainfield High School offers enrollment in grades 9-12 (offers virtual instruction).
What school district is Plainfield High School part of?
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Quick Stats (2025)
Grades: 9-12
Enrollment: 507 students
Student:Teacher Ratio: 10:1
Minority Enrollment: 18%
Graduation Rate
: 80-84% (Btm 50%)
Overall Testing Rank
: Bottom 50%
Math Proficiency
: 15-19% (Btm 50%)
Reading Proficiency
: 40-44% (Btm 50%)
Science Proficiency
: 20-24% (Btm 50%)
Source: National Center for Education Statistics (NCES), CT Dept. of Education
