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 (26-27)
- 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%)
- Attendance Zone: North Mianus School serves the eastern part of Riverside, CT, covering an area of approximately 1.6 square miles. Families within this attendance zone can typically expect a drive of 5 to 10 minutes to the school, with the furthest edge located about 1.6 miles away.
- 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
Showing 2015–2025. Full 39-year historical data available below ↓
Total Classroom Teachers
41 teachers
Showing 2015–2025. Full 39-year historical data available below ↓
Year Founded
1925
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%)
Showing 2012–2023. Full 14-year historical data available below ↓
Math Test Scores (% Proficient)
88%
41%
Showing 2012–2023. Full 14-year historical data available below ↓
Reading/Language Arts Test Scores (% Proficient)
86%
50%
Showing 2011–2022. Full 13-year historical data available below ↓
Science Test Scores (% Proficient)
75-79%
47%
Student-Teacher Ratio
10:1
12:1
Showing 2015–2025. Full 39-year historical data available below ↓
Asian
14%
5%
Showing 2015–2025. Full 38-year historical data available below ↓
Hispanic
13%
32%
Showing 2015–2025. Full 38-year historical data available below ↓
White
66%
46%
Showing 2015–2025. Full 38-year historical data available below ↓
Two or more races
7%
5%
Showing 2015–2025. Full 15-year historical data available below ↓
All Ethnic Groups
Showing 2015–2025. Full 38-year historical data available below ↓
Chronically Absent Students
(22-23)8.8%
19.3%
Eligible for Free Lunch
3%
38%
Showing 2015–2025. Full 34-year historical data available below ↓
Eligible for Reduced Lunch (22-23)
1%
6%
Showing 2010–2023. Full 24-year historical data available below ↓
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
Election Day - Schools Closed
November 03, 2026 (Tuesday)
Veteran's Day - SCHOOLS OPEN
November 11, 2026 (Wednesday)
Thanksgiving Recess - Schools Closed
November 26, 2026 (Thursday)
Thanksgiving Recess - Schools Closed
November 27, 2026 (Friday)
Professional Learning Day - Schools Closed - K-8 Conferences
December 07, 2026 (Monday)
School Reviews
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