Plainfield High School is located in Central Village, Connecticut.
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 10-14% (which is lower than the Connecticut state average of 41%). 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 Facts (2026)
- Grades: 9-12
- Enrollment: 507 students
- Student-Teacher Ratio: 10:1
- Minority Enrollment: 18%
- Graduation Rate: 85-89% (Btm 50% in CT)
- Overall Testing Rank: Bottom 50%
- Math Proficiency: 10-14% (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
School Overview
Plainfield High School's student population of 507 students has declined by 8% over five school years.
The teacher population of 50 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 9-12
(Supplemental Virtual)
(Supplemental Virtual)
Total Students
507 students
Gender %
Total Classroom Teachers
50 teachers
Year Founded
1905
Last Day of School
Wed. Jun 17, 2026
Campus Size
50 acres
School Rankings
Plainfield High School ranks within the bottom 50% of all 939 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.
Overall Testing Rank
#718 out of 939 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
10-14%
41%
Reading/Language Arts Test Scores (% Proficient)
40-44%
50%
Science Test Scores (% Proficient)
20-24%
47%
Student-Teacher Ratio
10:1
12:1
American Indian
1%
n/a
Asian
2%
5%
Hispanic
9%
31%
Black
4%
12%
White
82%
47%
Hawaiian
1%
n/a
Two or more races
1%
5%
All Ethnic Groups
Graduation Rate
85-89%
89%
Eligible for Free Lunch
43%
37%
Eligible for Reduced Lunch
10%
6%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CT Dept. of Education
Frequently Asked Questions
What is Plainfield High School's ranking?
Plainfield High School is ranked #718 out of 939 schools, which ranks it among the bottom 50% of public schools in Connecticut.
What schools are Plainfield High School often compared to?
Plainfield High Schoolis often viewed alongside schools like Killingly High School, Plainfield Central School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
10-14% of students have achieved math proficiency (compared to the 41% 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 85-89%, 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 (Supplemental Virtual).
What school district is Plainfield High School part of?
Plainfield High School is part of Plainfield School District.
School Calendar
View the Plainfield High School yearly calendar below. Note key dates such as:
Event
Date
Last Day of School (Half Day)
June 18, 2026 (Thursday)
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