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International School At Dundee

Public Grades K-5

17^th

SchoolDigger Rank ?

of 492 Connecticut Elementary Schools

Better than 97% of Connecticut elementary schools

Summary

International School At Dundee is a K–5 elementary school in Riverside, Connecticut, serving 342 students as part of the highly rated Greenwich School District. The school is currently ranked 17th of 491 Connecticut elementary schools (97th percentile, 5 stars) for 2025-2026 and has never fallen below the 93rd percentile over the past decade. Academic proficiency runs far above state averages — 87.9% of 3rd graders were proficient in English Language Arts versus 47.3% statewide, and 86.5% of 5th graders were proficient in math versus 45.8% statewide.

That said, ISD operates in an extraordinarily competitive Greenwich cluster. Among nearby same-district elementary schools, it currently ranks fifth — behind North Mianus School (#1 statewide), Riverside School (#2), North Street School (#8), and Old Greenwich School (#12) — while staying ahead of Cos Cob School (#102). ISD also stands out in science: 91.5% of 5th graders were proficient on the NGSS assessment in 2024-2025, the best among nearby schools. It also serves a more economically diverse student body than most Greenwich peers — 10.5% of students qualify for free or reduced-price lunch versus 1.6% at Riverside School and 2.3% at Old Greenwich School.

Attendance is a clear strength: chronic absenteeism is just 4.8%, roughly one-third the state rate. The two things worth watching are 5th grade English Language Arts proficiency (78.8% in 2025-2026, below the district's 81.0%) and a one-year dip in the White student subgroup ranking (66th percentile in 2023-2024, which recovered the following year) — both appear to be temporary fluctuations. Just a few miles away, Stamford-area schools like Stillmeadow School and Hart School post far lower proficiency rates, which makes ISD's consistently elite performance all the more notable. For families, International School At Dundee offers a winning combination: top-tier academics, strong attendance, standout science, and the benefits of an excellent district.

342

Students ?

11.2

Student/teacher ratio ?

$27,915

Per pupil spending ?

10.5%

Free/reduced lunch eligible (2024-25) ?

55 Florence Rd.
Riverside, CT 06878

(203) 637-3800

District: Greenwich School District

Students who attend International School At Dundee usually attend:

Middle:	Eastern Middle School
High:	Greenwich High School

Racial breakdown:

White:

45.9%

Asian:

25.4%

Hispanic:

18.7%

See top rated Connecticut elementary schools

Compare International School At Dundee to nearby elementary schools!

At a glance

▬ Ranking trend: Holding steady — 97th percentile in 2016 → 97th in 2026

Strengths

✓Test scores above the Connecticut average (84% vs 51% meeting standards)

✓Ranks in the top 3% of Connecticut elementary schools

✓Small classes — about 11 students per teacher

Students meeting standards (2025-2026) ?

This school84%

District avg82%

Connecticut avg51%

17^th of 492

Connecticut public elementary schools ?

Top 3%▬ steady since 2016

See the entire ranking list of Connecticut Elementary Schools →

★★★★★

SchoolDigger rating ?

7^th 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	92.4	17 of 492	96.5%	★★★★★
2025	91.6	19 of 493	96.1%	★★★★★
2024	90.5	32 of 497	93.6%	★★★★★
2023	91.9	19 of 491	96.1%	★★★★★
2022	93.8	9 of 490	98.2%	★★★★★
2021	93.5	24 of 538	95.5%	★★★★★
2019	89.6	39 of 522	92.5%	★★★★★
2018	90.8	30 of 532	94.4%	★★★★★
2017	91.3	18 of 519	96.5%	★★★★★
2016	91.2	17 of 518	96.7%	★★★★★
2015	93.5	8 of 551	98.5%	★★★★★
2013	85.6	8 of 557	98.6%	★★★★★
2012	82.0	43 of 564	92.4%	★★★★★
2011	79.0	109 of 565	80.7%	★★★★☆
2010	78.1	126 of 579	78.2%	★★★★☆
2009	79.7	88 of 566	84.5%	★★★★☆
2008	83.6	28 of 565	95.0%	★★★★★
2007	81.3	71 of 568	87.5%	★★★★☆
2006	85.8	18 of 570	96.8%	★★★★★

Female

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2021	89.8	33 of 455	92.7%	★★★★★
2019	91.4	7 of 242	97.1%	★★★★★
2018	90.2	6 of 259	97.7%	★★★★★

Male

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2022	90.9	7 of 232	97.0%	★★★★★
2021	93.7	13 of 445	97.1%	★★★★★
2019	79.3	52 of 247	78.9%	★★★★☆
2018	84.5	36 of 262	86.3%	★★★★☆

White

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2025	85.9	17 of 248	93.1%	★★★★★
2024	68.0	85 of 250	66.0%	★★★☆☆
2023	84.4	18 of 262	93.1%	★★★★★
2021	86.4	26 of 327	92.0%	★★★★★
2019	80.3	43 of 295	85.4%	★★★★☆
2018	85.7	23 of 296	92.2%	★★★★★

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)

Male (2022)97th percentile~ school

White (2025)93rd percentile-3 vs school

Female (2021)93rd percentile-3 vs school

By subject vs Connecticut (2025-2026) ?

Mathematics86%+36 vs state

English Language Arts84%+34 vs state

Science79%+26 vs state

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Schools Near International School At Dundee

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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
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
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
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
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
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%)	28.2	339^th of 492 public elementary schools	31.1%		24.2	347^th of 493 public elementary schools	29.6%	8	40.0		36.9	33.0	41.2				48.8	33.0	40.7				$22,587
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
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
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 International School At Dundee

How many students attend International School At Dundee?

In the 2024-25 school year, 342 students attended International School At Dundee.

What district is International School At Dundee in?

Greenwich School District

What is the racial makeup of International School At Dundee?

Students at International School At Dundee are 46% White, 25% Asian, 19% Hispanic, 9% Two or more races.

Is International School At Dundee a good school?

Yes! International School At Dundee is one of the best elementary schools in the state. It ranks 17^th of 492 Connecticut elementary schools.

What schools do graduates of International School At Dundee attend?

Students who attend International School At Dundee usually go on to attend:

Middle : Eastern Middle School
High : Greenwich High School

Rate International School At Dundee!

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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.