Serving 423 students in grades Kindergarten-5, North Mianus School ranks in the top 1% of all schools in Connecticut for overall test scores (math proficiency is top 1%, and reading proficiency is top 1%).
The percentage of students achieving proficiency in math is 88% (which is higher than the Connecticut state average of 41%). The percentage of students achieving proficiency in reading/language arts is 86% (which is higher 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 34% of the student body (majority Asian), which is lower than the Connecticut state average of 54% (majority Hispanic).
Quick Facts (2026)
- Grades: Kindergarten-5
- Enrollment: 423 students
- Student-Teacher Ratio: 10:1
- Minority Enrollment: 34%
- Overall Testing Rank: Top 1% in CT
- Math Proficiency: 88% (Top 1%)
- Reading Proficiency: 86% (Top 5%)
- Science Proficiency: 75-79% (Top 10%)
- Source: National Center for Education Statistics (NCES), CT Dept. of Education
Top Rankings
North Mianus School ranks among the top 20% of public schools in Connecticut for:
Category
Attribute
Overall Rank
Math Proficiency
Reading/Language Arts Proficiency
Science Proficiency
School Overview
North Mianus School's student population of 423 students has declined by 13% over five school years.
The teacher population of 41 teachers has stayed relatively flat over five school years.
Grades Offered
Grades Kindergarten-5
(Supplemental Virtual)
(Supplemental Virtual)
Total Students
423 students
Total Classroom Teachers
41 teachers
Year Founded
1925
Last Day of School
Wed. Jun 17, 2026
Average Class Size
15 students
School Rankings
North Mianus School ranks within the top 1% of all 939 schools in Connecticut (based off of combined math and reading proficiency testing data).
The diversity score of North Mianus School is 0.53, 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
#8 out of 939 schools
(Top 1%)
(Top 1%)
Math Test Scores (% Proficient)
88%
41%
Reading/Language Arts Test Scores (% Proficient)
86%
50%
Science Test Scores (% Proficient)
75-79%
47%
Student-Teacher Ratio
10:1
12:1
American Indian
n/a
n/a
Asian
14%
5%
Hispanic
13%
32%
Black
n/a
12%
White
66%
46%
Hawaiian
n/a
n/a
Two or more races
7%
5%
All Ethnic Groups
Eligible for Free Lunch
3%
38%
Eligible for Reduced Lunch (22-23)
1%
6%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CT Dept. of Education
Frequently Asked Questions
What is North Mianus School's ranking?
North Mianus School is ranked #8 out of 939 schools, which ranks it among the top 1% of public schools in Connecticut.
What schools are North Mianus School often compared to?
North Mianus Schoolis often viewed alongside schools like International School At Dundee, Riverside School, North Street School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
88% of students have achieved math proficiency (compared to the 41% CT state average), while 86% of students have achieved reading proficiency (compared to the 50% CT state average).
How many students attend North Mianus School?
423 students attend North Mianus School.
What is the racial composition of the student body?
66% of North Mianus School students are White, 14% of students are Asian, 13% of students are Hispanic, and 7% of students are Two or more races.
What is the student-teacher ratio of North Mianus School?
North Mianus School has a student ration of 10:1, which is lower than the Connecticut state average of 12:1.
What grades does North Mianus School offer ?
North Mianus School offers enrollment in grades Kindergarten-5 (Supplemental Virtual).
What school district is North Mianus School part of?
North Mianus School is part of Greenwich School District.
School Calendar
View the North Mianus School yearly calendar below. Note key dates such as:
Event
Date
Last Day of School for Grade 6&9**
June 19, 2026 (Friday)
Last Day of School for Students - Early Release**
June 22, 2026 (Monday)
Last Day of School for Staff**
June 25, 2026 (Thursday)
First Day of School for All Teachers
August 24, 2026 (Monday)
First Day of School for All Students
August 28, 2026 (Friday)
School Reviews
Review North Mianus School. Reviews should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
- Availability of music, art, sports and other extracurricular activities
Recent Articles
AI Report Cards: Should Schools Evaluate AI Use?
Explore whether schools should assess student AI use, the benefits, risks, and what responsible AI report cards could look like in 2026.
The Parent’s Guide to School Cell Phone Bans in 2026
Learn how school cell phone bans work in 2026, why districts are adopting them, and what parents should expect.
Parental Involvement in Public Schools: 2026 Update
Explore the latest 2026 trends, research, and strategies shaping parental involvement in public schools and student success.
