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Riverside School

Public Grades K-5

2^nd

SchoolDigger Rank ?

of 492 Connecticut Elementary Schools

Better than 100% of Connecticut elementary schools

Summary

Riverside School is a K-5 elementary school in Riverside, CT, serving 440 students as part of the Greenwich School District. It is currently ranked #2 among Connecticut's 491 elementary schools, and it has held a top-8 state ranking every year for the past decade, including a #1 finish in 2023–24. Test scores run roughly 35 to 45 percentage points above state averages, with most students scoring proficient or better in ELA, math, and science.

The closest comparable school is North Mianus School, located just 1.7 miles away and ranked #1 in the state. Riverside edges North Mianus in some subjects — for example, 5th-grade ELA (91.9% vs. 89.9% proficient) — while North Mianus is slightly ahead in 5th-grade math (92.4% vs. 87.8%) and 5th-grade science (89.9% vs. 85.1%). Riverside also outperforms most other Greenwich peers like Old Greenwich School and North Street School, and it far exceeds nearby Stamford schools: Riverside's 3rd-grade ELA proficiency is 87.5% versus 23.3% at Hart School, and its 5th-grade math proficiency is 87.8% versus 34.8% at Westover School.

Riverside also posts very low chronic absenteeism (4.6%, compared with 8.5% for the district and 16.4% statewide) and serves a highly advantaged student population, with only about 1.6% of students receiving free or reduced-price lunch — important context for its high scores. The school spends roughly $21,700 per student and has a student–teacher ratio of 11.7 to 1. Performance is broad-based: female and male students both rank #3 in the state in their most recent subgroup rankings, and results are consistently strong across all reported groups. In short, Riverside is an elite, stable, and well-supported school, and its only true peer in the area is North Mianus.

440

Students ?

11.7

Student/teacher ratio ?

$25,196

Per pupil spending ?

1.6%

Free/reduced lunch eligible (2024-25) ?

90 Hendrie Ave.
Riverside, CT 06878

(203) 637-1440

District: Greenwich School District

Students who attend Riverside School usually attend:

Middle:	Eastern Middle School
High:	Greenwich High School

Racial breakdown:

White:

71.4%

Hispanic:

18.2%

Asian:

5.2%

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At a glance

▬ Ranking trend: Holding steady — 98th percentile in 2016 → 100th in 2026

Strengths

✓Test scores above the Connecticut average (89% vs 51% meeting standards)

✓Ranks in the top 1% of Connecticut elementary schools

✓Among the top-ranked schools in Greenwich School District

Students meeting standards (2025-2026) ?

This school89%

District avg82%

Connecticut avg51%

2^nd of 492

Connecticut public elementary schools ?

Top 1%▲ up 1 pts since 2016

See the entire ranking list of Connecticut Elementary Schools →

★★★★★

SchoolDigger rating ?

2^nd of 11Elementary Schools in the Greenwich School District

14^th of 153Greenwich 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
2026	95.6	2 of 492	99.6%	★★★★★
2025	96.1	3 of 493	99.4%	★★★★★
2024	95.8	1 of 497	99.8%	★★★★★
2023	96.4	2 of 491	99.6%	★★★★★
2022	95.7	2 of 490	99.6%	★★★★★
2021	96.8	4 of 538	99.3%	★★★★★
2019	93.9	3 of 522	99.4%	★★★★★
2018	93.2	8 of 532	98.5%	★★★★★
2017	94.2	4 of 519	99.2%	★★★★★
2016	93.2	8 of 518	98.5%	★★★★★
2015	92.8	13 of 551	97.6%	★★★★★
2013	86.4	4 of 557	99.3%	★★★★★
2012	85.2	4 of 564	99.3%	★★★★★
2011	85.7	9 of 565	98.4%	★★★★★
2010	84.0	19 of 579	96.7%	★★★★★
2009	81.4	50 of 566	91.2%	★★★★★
2008	83.4	32 of 565	94.3%	★★★★★
2007	86.5	2 of 568	99.6%	★★★★★
2006	88.8	2 of 570	99.6%	★★★★★

Female

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2022	90.7	3 of 234	98.7%	★★★★★
2021	95.3	5 of 455	98.9%	★★★★★
2019	91.0	8 of 242	96.7%	★★★★★
2018	90.2	5 of 259	98.1%	★★★★★

Male

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2026	96.2	1 of 234	99.6%	★★★★★
2025	91.3	3 of 239	98.7%	★★★★★
2024	90.4	6 of 233	97.4%	★★★★★
2023	93.8	2 of 231	99.1%	★★★★★
2022	94.3	2 of 232	99.1%	★★★★★
2021	96.4	4 of 445	99.1%	★★★★★
2019	93.6	1 of 247	99.6%	★★★★★
2018	88.9	13 of 262	95.0%	★★★★★

White

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2026	92.3	2 of 246	99.2%	★★★★★
2025	93.8	2 of 248	99.2%	★★★★★
2024	91.0	10 of 250	96.0%	★★★★★
2023	94.1	2 of 262	99.2%	★★★★★
2022	92.1	3 of 252	98.8%	★★★★★
2021	95.0	1 of 327	99.7%	★★★★★
2019	90.8	5 of 295	98.3%	★★★★★
2018	89.1	12 of 296	95.9%	★★★★★

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)

Male (2026)100th percentile~ school

White (2026)99th percentile~ school

Female (2022)99th percentile~ school

By subject vs Connecticut (2025-2026) ?

Mathematics91%+41 vs state

English Language Arts90%+39 vs state

Science85%+32 vs state

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Schools Near Riverside School

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Ranking:

E Elementary M Middle H High A Alternative P Private

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

School													Students/Teachers											Ranking (2026)				Ranking (2025)				NGSS Science (2026)		SBAC English Language Arts (2026)						SBAC Mathematics (2026)						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/reduced lunch (2024-25)	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2026)	Statewide Rank (2026)	State Percentile (2026)	SchoolDigger Rating (2026)	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	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 7th Grade	SBAC Mathematics 8th Grade	Total
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%)	95.6	2^nd of 492 public elementary schools	99.6%		96.1	3^rd of 493 public elementary schools	99.4%	1	85.1		87.5	2584.0	91.9				94.4	2588.0	87.8				$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%)	93	12^th of 492 public elementary schools	97.6%		95.7	4^th of 493 public elementary schools	99.2%	8	84.5		86.6	86.4	79.3				92.5	90.9	74.1				$26,372
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%)	80.8	102^nd of 492 public elementary schools	79.3%		73	156^th of 493 public elementary schools	68.4%	54	77.3		77.2	69.4	72.7				77.2	62.9	65.9				$30,090
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%)	92.4	17^th of 492 public elementary schools	96.5%		91.6	19^th of 493 public elementary schools	96.1%	2	78.8		87.9	85.5	78.8				2539.0	85.5	86.5				$27,915
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%)	96.4	1^st of 492 public elementary schools	99.8%		96.3	1^st of 493 public elementary schools	99.8%		89.9		94.9	90.4	89.9				2569.0	91.6	92.4				$25,677
Westover School	Public	K-7	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%)	31.3	329^th of 492 public elementary schools	33.1%		35.1	304^th of 493 public elementary schools	38.3%	25	45.6		41.7	36.3	51.7	45.9	38.5		38.5	35.2	34.8	27.1	32.1		$24,829
Julian Curtiss School	Public	PK, KG-5	180 East Elm St.	Greenwich	06830	Western Connecticut Planning Region	Greenwich School District	No	No	No	Yes	(203) 869-1896	236	28	8.3	39.0%	100 (42.4%)	12 (5.1%)	81 (34.3%)	21 (8.9%)	0 (0.0%)	0 (0.0%)	22 (9.3%)	85	73^rd of 492 public elementary schools	85.2%		84	73^rd of 493 public elementary schools	85.2%		516.0		87.1	72.4	73.8				2519.0	86.2	64.3				$34,301
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%)	75.9	146^th of 492 public elementary schools	70.3%		84.8	69^th of 493 public elementary schools	86.0%	77	50.9	63.6	78.9	88.9	69.5	61.1	66.7	77.8	77.2	88.7	47.5	55.6	52.9	2608.0	$11,837
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%)	25.4	353^rd of 492 public elementary schools	28.3%		31.1	319^th of 493 public elementary schools	35.3%	34	47.6		23.3	36.8	40.2				31.1	42.5	35.4				$22,667
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%)	94	8^th of 492 public elementary schools	98.4%		93.8	8^th of 493 public elementary schools	98.4%		83.7		85.3	94.5	86.0				89.3	87.3	76.7				$24,905

Frequently Asked Questions about Riverside School

What schools do graduates of Riverside School attend?

Students who attend Riverside School usually go on to attend:

Middle : Eastern Middle School
High : Greenwich High School

How many students attend Riverside School?

In the 2024-25 school year, 440 students attended Riverside School.

What district is Riverside School in?

Greenwich School District

Is Riverside School a good school?

Yes! Riverside School is one of the best elementary schools in the state. It ranks 2^nd of 492 Connecticut elementary schools.

What is the racial makeup of Riverside School?

Students at Riverside School are 71% White, 18% Hispanic, 5% Asian, 5% Two or more races.

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Latest Connecticut data All new data »

2024–25 through 2025–26 attendance data & graduation ratesAug 31, 2026

2025–26 NGSS, SAT & SBAC test scoresAug 31, 2026

2024–25 school spending dataApr 2, 2026

2024–25 attendance dataNov 6, 2025

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.