Plainville High School is a public high school in Plainville, Connecticut. It is the only high school in the town of Plainville, Connecticut.
Serving 688 students in grades 9-12, Plainville 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 35-39% (which is lower than the Connecticut state average of 41%). The percentage of students achieving proficiency in reading/language arts is 50-54% (which is approximately equal to the Connecticut state average of 50%).
The student:teacher ratio of 12:1 is equal to the Connecticut state level of 12:1.
Minority enrollment is 39% 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: 688 students
- Student:Teacher Ratio: 12:1
- Minority Enrollment: 39%
- Graduation Rate: 85-89% (Btm 50% in CT)
- Overall Testing Rank: Bottom 50%
- Math Proficiency: 35-39% (Btm 50%)
- Reading Proficiency: 50-54% (Top 50%)
- Science Proficiency: 35-39% (Btm 50%)
- Source: National Center for Education Statistics (NCES), CT Dept. of Education
School Overview
Plainville High School's student population of 688 students has stayed relatively flat over five school years.
The teacher population of 58 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 9-12
(Supplemental Virtual)
(Supplemental Virtual)
Total Students
688 students
Gender %
Total Classroom Teachers
58 teachers
Year Founded
1905
Colors
White, Blue
School Calendar
First Day of School
Thu. Aug 21, 2025
School Motto
'Once a blue devil, always a blue devil.'
School Rankings
Plainville 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 Plainville High School is 0.57, 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
#511 out of 939 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
35-39%
41%
Reading/Language Arts Test Scores (% Proficient)
50-54%
50%
Science Test Scores (% Proficient)
35-39%
47%
Student : Teacher Ratio
12:1
12:1
American Indian
n/a
n/a
Asian
3%
5%
Hispanic
24%
31%
Black
7%
12%
White
61%
47%
Hawaiian
n/a
n/a
Two or more races
5%
5%
All Ethnic Groups
Graduation Rate
85-89%
89%
Eligible for Free Lunch
31%
37%
Eligible for Reduced Lunch
11%
6%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CT Dept. of Education
Profile last updated: 02/09/2025
Frequently Asked Questions
What is Plainville High School's ranking?
Plainville High School is ranked #511 out of 939 schools, which ranks it among the bottom 50% of public schools in Connecticut.
What schools are Plainville High School often compared to?
Plainville High Schoolis often viewed alongside schools like New Britain High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
35-39% of students have achieved math proficiency (compared to the 41% CT state average), while 50-54% of students have achieved reading proficiency (compared to the 50% CT state average).
What is the graduation rate of Plainville High School?
The graduation rate of Plainville High School is 85-89%, which is lower than the Connecticut state average of 89%.
How many students attend Plainville High School?
688 students attend Plainville High School.
What is the racial composition of the student body?
61% of Plainville High School students are White, 24% of students are Hispanic, 7% of students are Black, 5% of students are Two or more races, and 3% of students are Asian.
What is the student:teacher ratio of Plainville High School?
Plainville High School has a student ration of 12:1, which is equal to the Connecticut state average of 12:1.
What grades does Plainville High School offer ?
Plainville High School offers enrollment in grades 9-12 (Supplemental Virtual).
What school district is Plainville High School part of?
Plainville High School is part of Plainville School District.
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