North Mianus School (Ranked Top 1% for 2026)

309 Palmer Hill Rd.
Riverside, CT 06878

( shown in map)

10/

Top 1%

Serving 475 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 is 88% (which is higher than the Connecticut state average of 41%). The percentage of students achieving is 86% (which is higher than 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 36% of the student body (majority Asian), which is lower than the Connecticut state average of 53% (majority Hispanic).

Quick Facts (2026)

Grades: Kindergarten-5
Enrollment: 475 students
Student-Teacher Ratio: 12:1
Minority Enrollment: 36%
: Top 1% in CT
: 88% (Top 1%)
: 86% (Top 5%)
: 75-79% (Top 10%)
Source: National Center for Education Statistics (NCES), CT Dept. of Education

<�鶹��ý class="so-dt-title" id="top-rankings">Top Rankings

North Mianus School ranks among the top 20% of public schools in Connecticut for:

Category

Attribute

Overall Rank

Highest overall rank (Top 1%)

Math Proficiency

Highest math proficiency (Top 1%)

Reading/Language Arts Proficiency

Highest reading/language arts proficiency (Top 5%)

Science Proficiency

Highest science proficiency (Top 10%)

<�鶹��ý class='so-dt-title' id="overview">School Overview

North Mianus School's student population of 475 students has stayed relatively flat over five school years.

The teacher population of 39 teachers has declined by 9% over five school years.

Awards

Blue Ribbon School - Selected in 2019

Grades Offered

Grades Kindergarten-5
(Supplemental Virtual)

View Data

Distribution of Students By Grade Trends
Grade	North Mianus School
Kind	62
1	82
2	82
3	75
4	88
5	86

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Total Students

475 students

View Data

Total Students Trends Over Years (1987-2023)
Year	North Mianus School
2023	492
2022	498
2021	489
2020	492
2019	492
2018	496
2017	496
2016	482
2015	487
2014	447
2013	465
2012	461
2011	452
2010	455
2009	457
2008	454
2007	438
2006	490
2005	436
2004	450
2003	437
2002	426
2001	439
2000	479
1999	453
1998	457
1997	437
1996	413
1995	382
1994	360
1993	393
1992	387
1991	390
1990	376
1989	422
1988	416
1987	401

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Gender %

Total Classroom Teachers

39 teachers

View Data

Total Classroom Teachers Trends Over Years (1987-2023)
Year	North Mianus School
2023	40
2022	39
2021	43
2020	37
2019	37
2018	40
2017	40
2016	40
2015	39
2014	38
2013	39
2012	40
2011	40
2010	36
2009	42
2008	35
2007	33
2006	32
2005	32
2004	34
2003	34
2002	33
2001	35
2000	34
1999	33
1998	32
1997	31
1996	25
1995	25
1994	27
1993	27
1992	29
1991	27
1990	29
1989	31
1988	29
1987	27

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Year Founded

1925

Last Day of School

Wed. Jun 17, 2026

Average Class Size

15 students

<�鶹��ý class='so-dt-title' id="school-rankings">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 of North Mianus School is 0.55, 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.

This School

State Level (CT)

#8 out of 939 schools
(Top 1%)

View Data

Overall School Rank Trends Over Years (2011-2023)
Year	North Mianus School
2023	#8
2022	#15
2021	#30
2019	#22
2018	#5
2017	#12
2016	#47
2015	#29
2013	#55
2012	#114
2011	#253

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88%

41%

View Data

Math Proficiency Comparison Over Years (2011-2023)
Year	North Mianus School	Connecticut	Greenwich School District
2023	88%	41%	69%
2022	82%	40%	67%
2021	83%	39%	64%
2019	87%	48%	71%
2018	86%	47%	71%
2017	85%	46%	69%
2016	77%	44%	66%
2015	80%	40%	64%
2013	98%	82%	92%
2012	96%	83%	93%
2011	95%	83%	93%

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86%

50%

View Data

Reading and Language Arts Proficiency Comparison Over Years (2010-2022)
Year	North Mianus School	Connecticut	Greenwich School District
2022	86%	50%	76%
2021	81%	51%	73%
2019	86%	58%	78%
2018	89%	57%	71%
2017	88%	57%	77%
2016	85%	58%	77%
2015	84%	56%	78%
2013	93%	80%	91%
2012	92%	80%	91%
2011	89%	79%	90%
2010	90%	78%	88%

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75-79%

47%

View Data

Science Proficiency Comparison Over Years (2021-2022)
Year	North Mianus School	Connecticut	Greenwich School District
2022	77%	47%	74%
2021	82%	49%	70%

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Student-Teacher Ratio

12:1

View Data

Student-Teacher Ratio Comparison Over Years (1987-2023)
Year	North Mianus School	Connecticut	Greenwich School District
2023	12:1	12:1	11:1
2022	13:1	12:1	12:1
2021	11:1	12:1	11:1
2020	13:1	13:1	12:1
2019	13:1	13:1	12:1
2018	12:1	13:1	12:1
2017	12:1	13:1	12:1
2016	12:1	13:1	12:1
2015	12:1	13:1	12:1
2014	12:1	13:1	12:1
2013	12:1	13:1	12:1
2012	12:1	13:1	12:1
2011	11:1	13:1	12:1
2010	13:1	14:1	12:1
2009	11:1	12:1	11:1
2008	13:1	14:1	13:1
2007	13:1	15:1	14:1
2006	15:1	16:1	14:1
2005	14:1	16:1	14:1
2004	13:1	14:1	12:1
2003	13:1	14:1	12:1
2002	13:1	14:1	12:1
2001	13:1	14:1	12:1
2000	14:1	14:1	12:1
1999	14:1	14:1	12:1
1998	14:1	14:1	13:1
1997	14:1	15:1	13:1
1996	17:1	15:1	14:1
1995	15:1	15:1	13:1
1994	14:1	15:1	13:1
1993	14:1	15:1	14:1
1992	13:1	15:1	13:1
1991	15:1	15:1	13:1
1990	13:1	15:1	13:1
1989	14:1	15:1	12:1
1988	14:1	15:1	13:1
1987	15:1	16:1	13:1

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American Indian

n/a

Asian

15%

View Data

Asian Student Percentage Comparison Over Years (1991-2023)
Year	North Mianus School	Connecticut	Greenwich School District
2023	15%	5%	9%
2022	16%	5%	9%
2021	15%	5%	9%
2020	19%	5%	9%
2019	19%	5%	9%
2018	19%	5%	9%
2017	19%	5%	9%
2016	17%	5%	9%
2015	15%	5%	9%
2014	15%	6%	8%
2013	13%	5%	9%
2012	13%	5%	9%
2011	14%	5%	8%
2010	17%	4%	9%
2009	16%	5%	9%
2008	15%	4%	9%
2007	15%	4%	8%
2006	16%	4%	8%
2005	16%	4%	8%
2004	14%	3%	9%
2003	15%	4%	8%
2002	15%	3%	7%
2001	15%	3%	8%
2000	16%	3%	9%
1999	17%	3%	9%
1998	17%	3%	8%
1997	17%	3%	8%
1996	19%	2%	9%
1995	19%	2%	9%
1994	21%	2%	8%
1993	19%	2%	8%
1992	18%	2%	8%
1991	20%	2%	8%

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Hispanic

13%

31%

View Data

Hispanic Student Percentage Comparison Over Years (1991-2023)
Year	North Mianus School	Connecticut	Greenwich School District
2023	13%	30%	23%
2022	13%	29%	23%
2021	14%	28%	23%
2020	15%	25%	22%
2019	15%	25%	22%
2018	17%	24%	22%
2017	17%	24%	22%
2016	17%	23%	21%
2015	13%	22%	20%
2014	13%	21%	19%
2013	11%	20%	18%
2012	10%	19%	17%
2011	8%	19%	16%
2010	5%	18%	14%
2009	7%	17%	14%
2008	7%	17%	14%
2007	7%	16%	13%
2006	6%	16%	12%
2005	6%	15%	12%
2004	6%	15%	11%
2003	5%	14%	11%
2002	4%	14%	11%
2001	3%	13%	10%
2000	3%	13%	10%
1999	2%	13%	9%
1998	2%	12%	9%
1997	3%	12%	9%
1996	4%	12%	8%
1995	4%	12%	8%
1994	5%	11%	8%
1993	6%	11%	7%
1992	5%	10%	7%
1991	5%	10%	7%

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Black

n/a

12%

View Data

Black Student Percentage Comparison Over Years (1990-2021)
Year	North Mianus School	Connecticut	Greenwich School District
2021	1%	13%	2%
2014	1%	13%	3%
2013	2%	13%	3%
2012	1%	13%	3%
2011	1%	13%	3%
2010	1%	14%	3%
2009	1%	14%	3%
1997	7%	13%	5%
1990	1%	13%	4%

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White

64%

47%

View Data

White Student Percentage Comparison Over Years (1991-2023)
Year	North Mianus School	Connecticut	Greenwich School District
2023	65%	48%	60%
2022	64%	49%	60%
2021	65%	50%	61%
2020	60%	53%	62%
2019	60%	53%	62%
2018	60%	55%	63%
2017	60%	55%	63%
2016	61%	56%	65%
2015	68%	57%	66%
2014	68%	58%	67%
2013	72%	60%	68%
2012	75%	61%	70%
2011	76%	62%	71%
2010	77%	64%	74%
2009	76%	64%	74%
2008	78%	65%	74%
2007	78%	66%	76%
2006	78%	67%	77%
2005	78%	67%	77%
2004	80%	68%	78%
2003	80%	69%	79%
2002	81%	69%	80%
2001	82%	70%	80%
2000	81%	71%	79%
1999	81%	71%	80%
1998	81%	72%	80%
1997	73%	72%	78%
1996	77%	72%	80%
1995	77%	73%	80%
1994	74%	74%	81%
1993	75%	74%	81%
1992	77%	75%	82%
1991	75%	75%	82%

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Hawaiian

n/a

Two or more races

View Data

Two or More Races Student Percentage Comparison Over Years (2013-2023)
Year	North Mianus School	Connecticut	Greenwich School District
2023	7%	5%	6%
2022	7%	4%	6%
2021	5%	4%	5%
2020	6%	4%	5%
2019	6%	4%	5%
2018	4%	3%	4%
2017	4%	3%	4%
2016	5%	3%	3%
2015	4%	3%	3%
2014	3%	2%	3%
2013	2%	2%	2%

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All Ethnic Groups

0.55

0.68

View Data

Diversity Score Comparison Over Years (1991-2023)
Year	North Mianus School	Connecticut	Greenwich School District
2023	0.54	0.67	0.58
2022	0.55	0.66	0.58
2021	0.54	0.66	0.57
2020	0.58	0.64	0.56
2019	0.58	0.64	0.56
2018	0.58	0.63	0.54
2017	0.58	0.63	0.54
2016	0.57	0.62	0.53
2015	0.50	0.61	0.52
2014	0.50	0.61	0.52
2013	0.46	0.59	0.50
2012	0.42	0.58	0.48
2011	0.40	0.57	0.46
2010	0.38	0.54	0.43
2009	0.40	0.55	0.42
2008	0.37	0.53	0.42
2007	0.37	0.52	0.40
2006	0.37	0.52	0.39
2005	0.37	0.51	0.39
2004	0.34	0.50	0.38
2003	0.34	0.49	0.36
2002	0.32	0.49	0.35
2001	0.31	0.48	0.35
2000	0.32	0.47	0.36
1999	0.32	0.47	0.34
1998	0.32	0.46	0.34
1997	0.44	0.46	0.37
1996	0.38	0.45	0.35
1995	0.37	0.44	0.34
1994	0.41	0.43	0.34
1993	0.40	0.43	0.34
1992	0.38	0.41	0.32
1991	0.40	0.41	0.32

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Eligible for

37%

View Data

Free Lunch Eligibility Comparison Over Years (1996-2023)
Year	North Mianus School	Connecticut	Greenwich School District
2023	2%	36%	14%
2022	1%	34%	13%
2021	3%	36%	18%
2020	3%	35%	15%
2019	3%	35%	15%
2018	2%	31%	11%
2017	2%	31%	11%
2016	2%	33%	11%
2015	2%	33%	11%
2014	4%	32%	11%
2013	4%	31%	11%
2012	5%	30%	11%
2011	3%	29%	10%
2010	1%	26%	8%
2008	1%	24%	6%
2007	1%	22%	5%
2000	1%	19%	5%
1999	1%	20%	4%
1998	2%	20%	5%
1997	3%	20%	6%
1996	2%	24%	8%

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Eligible for

View Data

Reduced-Price Lunch Eligibility Comparison Over Years (2000-2023)
Year	North Mianus School	Connecticut	Greenwich School District
2023	1%	6%	4%
2022	1%	6%	5%
2021	1%	6%	4%
2020	1%	7%	5%
2019	1%	7%	5%
2014	1%	5%	4%
2011	1%	5%	3%
2010	1%	6%	3%
2009	1%	6%	3%
2000	1%	5%	3%

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School Statewide Testing

School District Name

Greenwich School District

Source: National Center for Education Statistics (NCES), CT Dept. of Education

Profile last updated: 02/09/2025

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<�鶹��ý class='so-dt-title' id='faq'>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?

475 students attend North Mianus School.

What is the racial composition of the student body?

64% of North Mianus School students are White, 15% of students are Asian, 13% of students are Hispanic, and 8% 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 12:1, which is equal to 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.

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