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Excellent

#9 of 990 schools in CT

Top 1% in state

North Mianus School

Elementary School · Greenwich School District · Riverside, CT

A Greenwich School District elementary school where students score 6 points above what's typical for similar communities.

309 Palmer Hill Rd., Riverside, CT 06878

  • Math 82% proficient (2022)
  • Reading 86% proficient (2022)
  • 12.2:1 student-teacher ratio

Academics

Full Profile · 3/3 metrics
Student Progress9.7Excellent50%
Year-over-year improvement in student test scores.
View breakdown
Years of Data13
Annual Change-0.83 pts/yr
Data Period2009–2022
TrendStable
Academics9.3Excellent30%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency82% (2022 EdFacts)
Reading/ELA Proficiency86% (2022 EdFacts)
Overall Proficiency84% (2022 EdFacts, Math+ELA)
Expected (poverty-adj.)78% (model expectation from 2022 EdFacts)
vs. Expected+6.1 pts
Adjusted Percentile89th
Resources & Environment10.0Excellent20%
Student-teacher ratio, district spending per student, and attendance.
View breakdown
Student-Teacher Ratio12.2:1
District spending per student$31,488

Students at North Mianus School score 84% proficient, which is above what's typical for similar communities (expected: 78%).

How we calculate scores →

2022 EdFacts proficiency

Most recent published year. School vs. CT average.

Math Proficiency82%(2022 EdFacts)
School
State
Not reported(2022 EdFacts)
ELA Proficiency86%(2022 EdFacts)
School
State
Not reported(2022 EdFacts)

Trend

→ Steady

Proficiency is down 9 points across the 14-year record (2009–2022) and has held near 84% recently.

Show all 13 years
2009
Math
96%
ELA
90%
2010
Math
95%
ELA
89%
2011
Math
96%
ELA
92%
2012
Math
98%
ELA
93%
2014
Math
80%
ELA
84%
2015
Math
77%
ELA
85%
2016
Math
85%
ELA
88%
2017
Math
86%
ELA
89%
2018
Math
87%
ELA
86%
2019
Math
87%
ELA
86%
2020*
Math
83%
ELA
81%
2021*
Math
83%
ELA
81%
2022
Math
82%
ELA
86%

Multi-year averages used by the rating model: math 87% (multi-year average, 2009-2022) · reading/ELA 87% (multi-year average, 2009-2022)

* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.

Based on 26 test records from CT state assessments and EdFacts (NCES).

Equity & diversity

Shown separately, not included in the overall score

Free/reduced lunch

2.3%

Students qualifying for federal meal assistance

How we rate schools

A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.

See how we rate

The neighborhood

Where North Mianus School sits, and what the surrounding area looks like.

Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries.

Getting around & local context

  • Walk 19Car-Dependent
  • Bike 26Somewhat Bikeable

Powered byWalk Score

Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)

Median income

$250,001

Median home value

$1,899,000

Median rent

$2,367/mo

College educated

78.7%

Homeownership

83.8%

Poverty rate

3.9%

ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 06878; this is area context, not an attendance boundary.

Programs & students

Programs & Offerings

Gifted & Talented ProgramAvailable
This school offers a gifted and talented program for qualifying students.·CRDC via Urban Institute · SY 2021–22

Compare nearby

Nearby same-level schools

4 from a 5-mile search; district fallback available

SchoolScoreGradesDistanceEnrollmentCompare
International School at DundeeEnrollment path unverified9.7K–50.4 mi325Compare →
Westover SchoolEnrollment path unverified6.4K–51.0 mi521Compare →
Stillmeadow SchoolEnrollment path unverified6.4K–51.4 mi604Compare →
Cos Cob SchoolEnrollment path unverified8.4K–51.5 mi340Compare →

Distance is proximity only; it is not attendance eligibility.

Enrollment path unverified: Potential public school; its attendance or application path has not been classified.

Greenwich School District

Schools in district
15
Rank in district
#3 of 15
District spending per student
$31,488NCES F-33 · FY 2023 · This annual source is three years behind the current year.
District child poverty rate
5.3%Census SAIPE · 2024

North Mianus School is listed in Greenwich School District; a district label does not verify attendance for an address.

About North Mianus School

North Mianus School is a public elementary school in Riverside, CT, part of Greenwich School District, serving approximately 475 students in grades Kindergarten-5th with a 12.2:1 student-teacher ratio. It holds a MySchoolScout rating of 9.6 out of 10 and ranks #9 of 990 schools in CT. State assessment records show 87% math proficiency (multi-year average, 2009-2022) and 87% reading/ELA proficiency (multi-year average, 2009-2022).

Frequently asked questions

Common questions about North Mianus School

What grades does North Mianus School serve?

North Mianus School serves students in grades Kindergarten through 5th.

How many students attend North Mianus School?

North Mianus School has an enrollment of approximately 475 students.

What is the student-teacher ratio at North Mianus School?

The student-teacher ratio at North Mianus School is 12.2:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does North Mianus School rank in CT?

North Mianus School ranks #9 of 990 schools in CT.

What is North Mianus School's MySchoolScout rating?

North Mianus School has a current MySchoolScout rating of 9.6 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.

What are the test scores at North Mianus School?

Based on loaded state assessment records, North Mianus School has 87% math proficiency (multi-year average, 2009-2022) and 87% reading/ELA proficiency (multi-year average, 2009-2022).

Is North Mianus School a charter school?

No, North Mianus School is not a charter school. It is a traditional public school operated by the local school district.

Is North Mianus School a Title I school?

No, North Mianus School is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for North Mianus School?

2.3% of students at North Mianus School qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.

School factsNCES Common Core of Data (CCD) (SY 2023–24)

Grades
Kindergarten – 5th
Enrollment
475
Student-Teacher Ratio
12.2:1
Teachers (FTE)
39
Type
regular
Setting
Large Suburb
County
Connecticut Planning Region 9
Area population (ZIP 06878)
8,446
Area median age
40.7
About this school's data

Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.

School directory (enrollment, grades, staff, contact)
NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
  • Source period: SY 2023–24. A newer release may be available.
MySchoolScout rating and rank
MySchoolScout ranking model · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
Math proficiency
State department of education · 2022 EdFacts · Low confidence
  • Older source: 2022 EdFacts. Use as historical context.
  • Available for part of the eligible units; results may not represent the full area.
  • Derived from source records rather than read directly from one field.
Reading/ELA proficiency
State department of education · 2022 EdFacts · Low confidence
  • Older source: 2022 EdFacts. Use as historical context.
  • Available for part of the eligible units; results may not represent the full area.
  • Derived from source records rather than read directly from one field.
Student progress (growth)
NCES EdFacts · Mixed source periods · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Available for part of the eligible units; results may not represent the full area.
  • Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
Neighborhood (income, housing, education)
U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
  • Older source: ACS 2019–2023 5-year estimates. Use as historical context.
  • Reported for the ZCTA for ZIP 06878; this does not measure the attendance area.
Programs (AP/IB, athletics, gifted)
CRDC via Urban Institute · SY 2021–22 · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: SY 2021–22. A newer release may be available.

Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2022; directory SY 2023–24

About our data · How we calculate scores

Related reading

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