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North Mianus School

Public Grades K-5

1^st

SchoolDigger Rank ?

of 493 Connecticut Elementary Schools

Better than 100% of Connecticut elementary schools

Summary

North Mianus School is an exceptional elementary school located in Riverside, Connecticut, serving 475 students in grades K-5. As part of the highly-ranked Greenwich School District, North Mianus consistently outperforms state and district averages on standardized tests, with over 90% of students scoring proficient or better in English Language Arts and Mathematics.

The school's academic excellence is evident in its consistent top rankings, including a 5-star rating from SchoolDigger and the #1 spot among Connecticut elementary schools in the 2024-2025 school year. This high performance is attributed to the school's effective teaching practices, rigorous curriculum, and supportive learning environment. However, the school's low percentage of students eligible for free or reduced-price lunch, just 2.32% compared to nearby Stamford School District schools ranging from 51.51% to 58.54%, suggests the school may serve a more affluent student population, raising questions about equity and the ability to address the needs of diverse socioeconomic backgrounds.

While North Mianus School's academic achievements are impressive, the data also reveals an increase in chronic absenteeism rates, from 5.3% in 2020-2021 to 17.7% in 2023-2024. This is an area the school may need to address to maintain its high performance. Overall, North Mianus School is an exceptional educational institution, but the disparities in performance and demographics compared to nearby schools highlight the importance of ensuring equitable access to high-quality education for all students, regardless of their socioeconomic background.

423

Students ?

10.2

Student/teacher ratio ?

$25,677

Per pupil spending ?

2.8%

Free/discounted lunch ?

309 Palmer Hill Rd.
Riverside, CT 06878

(203) 637-9730

District: Greenwich School District

Students who attend North Mianus School usually attend:

Middle:	Eastern Middle School
High:	Greenwich High School

Racial breakdown:

White:

65.5%

Asian:

14.2%

Hispanic:

12.5%

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Compare North Mianus School to nearby elementary schools!

At a glance

▬ Ranking trend: Holding steady — 96th percentile in 2015 → 100th in 2025

Strengths

✓Test scores above the Connecticut average (92% vs 50% meeting standards)

✓Ranks in the top 1% of Connecticut elementary schools

✓Among the top-ranked schools in Greenwich School District

Students meeting standards (2024-2025) ?

This school92%

District avg82%

Connecticut avg50%

1^st of 493

Connecticut public elementary schools ?

Top 1%▲ up 4 pts since 2015

From top 4% (2015) to top 1% (2025)

See the entire ranking list of Connecticut Elementary Schools →

★★★★★

SchoolDigger rating ?

1^st of 11Elementary Schools in the Greenwich School District

16^th of 156Greenwich School District among Connecticut districts

Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2025	96.3	1 of 493	99.8%	★★★★★
2024	95.0	4 of 497	99.2%	★★★★★
2023	94.2	6 of 491	98.8%	★★★★★
2022	92.8	16 of 490	96.7%	★★★★★
2021	94.5	13 of 538	97.6%	★★★★★
2019	91.8	20 of 522	96.2%	★★★★★
2018	94.0	4 of 532	99.2%	★★★★★
2017	92.5	11 of 519	97.9%	★★★★★
2016	88.6	41 of 518	92.1%	★★★★★
2015	91.2	24 of 551	95.6%	★★★★★
2013	82.9	49 of 557	91.2%	★★★★★
2012	80.6	67 of 564	88.1%	★★★★☆
2011	79.7	97 of 565	82.8%	★★★★☆
2010	84.1	18 of 579	96.9%	★★★★★
2009	80.2	81 of 566	85.7%	★★★★☆
2008	82.3	50 of 565	91.2%	★★★★★
2007	76.6	132 of 568	76.8%	★★★★☆
2006	86.4	12 of 570	97.9%	★★★★★

Female

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2024	92.9	3 of 237	98.7%	★★★★★
2023	92.6	4 of 230	98.3%	★★★★★
2022	81.1	46 of 234	80.3%	★★★★☆
2021	92.6	22 of 455	95.2%	★★★★★
2019	88.2	16 of 242	93.4%	★★★★★

Male

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2025	93.4	1 of 239	99.6%	★★★★★
2024	90.2	8 of 233	96.6%	★★★★★
2023	90.3	9 of 231	96.1%	★★★★★
2022	91.3	5 of 232	97.8%	★★★★★
2021	93.7	14 of 445	96.9%	★★★★★
2019	88.0	16 of 247	93.5%	★★★★★
2018	91.4	3 of 262	98.9%	★★★★★

White

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2025	94.6	1 of 248	99.6%	★★★★★
2024	91.7	8 of 250	96.8%	★★★★★
2023	87.9	8 of 262	96.9%	★★★★★
2022	80.1	35 of 252	86.1%	★★★★☆
2021	84.6	35 of 327	89.3%	★★★★☆
2019	73.0	73 of 295	75.3%	★★★★☆
2018	85.5	26 of 296	91.2%	★★★★★

How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)

White (2025)100th percentile~ school

Male (2025)100th percentile~ school

Female (2024)99th percentile~ school

By subject vs Connecticut (2024-2025) ?

Mathematics95%+45 vs state

English Language Arts91%+41 vs state

Science89%+37 vs state

★

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Schools Near North Mianus School

Choose columns to see: Summary School Students/Teachers Ranking Test Scores Finance All

School													Students/Teachers											Ranking (2025)				Ranking (2024)				NGSS Science (2025)		SBAC English Language Arts (2025)						SBAC Mathematics (2025)					Per Pupil Expenditures (2025)
Name	Type	Grades	Address	City	Zip	County	District	Is Charter	Is Magnet	Is Virtual	Is Title I	Phone	Enrollment	Full-time Teachers	Student/ Teacher Ratio	Free/Discounted Lunch Recipients	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	SchoolDigger Rating (2025)	Average Standard Score (2024)	Statewide Rank (2024)	State Percentile (2024)	Rank Change from Previous Year	NGSS Science 5th Grade	NGSS Science 8th Grade	SBAC English Language Arts 3rd Grade	SBAC English Language Arts 4th Grade	SBAC English Language Arts 5th Grade	SBAC English Language Arts 6th Grade	SBAC English Language Arts 7th Grade	SBAC English Language Arts 8th Grade	SBAC Mathematics 3rd Grade	SBAC Mathematics 4th Grade	SBAC Mathematics 5th Grade	SBAC Mathematics 6th Grade	SBAC Mathematics 8th Grade	Total
North Mianus School	Public	K-5	309 Palmer Hill Rd.	Riverside	06878	Western Connecticut Planning Region	Greenwich School District	No	No	No	No	(203) 637-9730	423	41	10.2	2.8%	277 (65.5%)	2 (0.5%)	53 (12.5%)	60 (14.2%)	1 (0.2%)	0 (0.0%)	30 (7.1%)	96.3	1^st of 493 public elementary schools	99.8%		95	4^th of 497 public elementary schools	99.2%	3	89.4		93.6	88.3	90.6				94.9	92.2	96.5			$25,677
International School At Dundee	Public	K-5	55 Florence Rd.	Riverside	06878	Western Connecticut Planning Region	Greenwich School District	No	No	No	No	(203) 637-3800	342	30	11.2	10.5%	157 (45.9%)	3 (0.9%)	64 (18.7%)	87 (25.4%)	0 (0.0%)	0 (0.0%)	31 (9.1%)	91.6	19^th of 493 public elementary schools	96.1%		90.5	32^nd of 497 public elementary schools	93.6%	13	91.5		76.8						81.2	87.0				$27,915
Westover School	Public	K-6	412 Stillwater Ave.	Stamford	06902	Western Connecticut Planning Region	Stamford School District	No	No	No	Yes	(203) 977-4572	624	57	11.0	60.1%	116 (18.6%)	109 (17.5%)	299 (47.9%)	69 (11.1%)	1 (0.2%)	0 (0.0%)	30 (4.8%)	35.1	304^th of 493 public elementary schools	38.3%		39.1	289^th of 497 public elementary schools	41.9%	15	42.9		37.8	57.0	46.4	45.7			34.6	40.7	34.5	34.6		$24,829
Stillmeadow School	Public	K-5	800 Stillwater Rd.	Stamford	06902	Western Connecticut Planning Region	Stamford School District	No	No	No	Yes	(203) 977-4507	587	47	12.3	54.0%	151 (25.7%)	47 (8.0%)	337 (57.4%)	28 (4.8%)	1 (0.2%)	0 (0.0%)	23 (3.9%)	24.2	347^th of 493 public elementary schools	29.6%		38.2	293^rd of 497 public elementary schools	41.0%	54	37.1		25.9	41.7	33.0				37.0	51.2	26.8			$22,587
Cos Cob School	Public	PK, KG-5	300 East Putnam Ave.	Cos Cob	06807	Western Connecticut Planning Region	Greenwich School District	No	No	No	No	(203) 869-4670	343	34	10.0	16.0%	231 (67.3%)	4 (1.2%)	70 (20.4%)	18 (5.2%)	2 (0.6%)	0 (0.0%)	18 (5.2%)	73	156^th of 493 public elementary schools	68.4%		72	159^th of 497 public elementary schools	68.0%	3			58.3	66.0	61.7				73.3	72.3	61.7			$30,090
Hart School	Public	K-5	61 Adams Ave.	Stamford	06902	Western Connecticut Planning Region	Stamford School District	No	No	No	Yes	(203) 977-5082	566	44	12.7	56.7%	75 (13.3%)	69 (12.2%)	342 (60.4%)	56 (9.9%)	1 (0.2%)	0 (0.0%)	23 (4.1%)	31.1	319^th of 493 public elementary schools	35.3%		30.7	321^st of 497 public elementary schools	35.4%	2	50.5		37.1	35.0	34.3				47.2	40.0	37.4			$22,667
Stamford Charter School for Excellence	Public, Charter	PK, KG-8	1 Schuyler Ave.	Stamford	06902	Western Connecticut Planning Region	Stamford Charter School for Excellence District	Yes	No	No	Yes	(203) 989-0000	543	19	28.5	55.6%	15 (2.8%)	219 (40.3%)	170 (31.3%)	118 (21.7%)	4 (0.7%)	1 (0.2%)	16 (2.9%)	84.8	69^th of 493 public elementary schools	86.0%		85.5	67^th of 497 public elementary schools	86.5%	2	56.9	53.7	78.7	89.8	74.1	70.9	81.6	69.1	85.2	78.0	67.2	70.9	61.1	$11,837
Riverside School	Public	K-5	90 Hendrie Ave.	Riverside	06878	Western Connecticut Planning Region	Greenwich School District	No	No	No	No	(203) 637-1440	440	37	11.7	1.6%	314 (71.4%)	0 (0.0%)	80 (18.2%)	23 (5.2%)	1 (0.2%)	0 (0.0%)	22 (5.0%)	96.1	3^rd of 493 public elementary schools	99.4%		95.8	1^st of 497 public elementary schools	99.8%	2	87.2			88.3	96.2					93.5	93.6			$25,196
Old Greenwich School	Public	PK, KG-5	825 Sound Beach Ave.	Old Greenwich	06870	Western Connecticut Planning Region	Greenwich School District	No	No	No	No	(203) 637-0150	385	37	10.5	2.3%	323 (83.9%)	0 (0.0%)	29 (7.5%)	15 (3.9%)	0 (0.0%)	0 (0.0%)	18 (4.7%)	95.7	4^th of 493 public elementary schools	99.2%		91.8	20^th of 497 public elementary schools	96.0%	16	90.5		91.7	89.3	93.7				90.0	89.3	85.7			$26,372
North Street School	Public	PK, KG-5	381 North St.	Greenwich	06830	Western Connecticut Planning Region	Greenwich School District	No	No	No	No	(203) 869-6756	411	38	10.8	4.4%	306 (74.5%)	3 (0.7%)	56 (13.6%)	18 (4.4%)	0 (0.0%)	1 (0.2%)	27 (6.6%)	93.8	8^th of 493 public elementary schools	98.4%		90.9	26^th of 497 public elementary schools	94.8%	18			87.3	91.7	91.7				87.3	79.2				$24,905

Frequently Asked Questions about North Mianus School

What schools do graduates of North Mianus School attend?

Students who attend North Mianus School usually go on to attend:

Middle : Eastern Middle School
High : Greenwich High School

What is the racial makeup of North Mianus School?

Students at North Mianus School are 65% White, 14% Asian, 13% Hispanic, 7% Two or more races.

How many students attend North Mianus School?

In the 2024-25 school year, 423 students attended North Mianus School.

Is North Mianus School a good school?

Yes! North Mianus School is one of the best elementary schools in the state. It ranks 1^st of 493 Connecticut elementary schools.

What district is North Mianus School in?

Greenwich School District

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SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the Connecticut Department of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.