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Greenwich School District

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At a glance

14^thof 153 Connecticut districts▲ 2

Better than 90% of Connecticut districts

Elementary 11 Middle 3 High 1Grades PK, KG-12

290 Greenwich Ave
Greenwich, CT 06830·(203) 625-7400·All Connecticut district rankings →

Statewide performance 2018–2026

2026: better than 90.8% of districts

Schools

8,377

Students

5-star schools

Top rankedNorth Mianus School1^st of 492 Connecticut elementary schools

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Biggest riser

New Lebanon School up 79 spots statewide this year

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Smallest classes

Hamilton Avenue School 7.9 students per teacher

SchoolDigger ratings

5★

4★

1 school without a SchoolDigger rating (too few tested students)

Compare Connecticut districts →See the top-ranked Connecticut schools →

Summary:

The Greenwich School District in Connecticut serves 15 public schools—11 elementary, 3 middle, and 1 high school—with 8,377 students, earning a 5-star rating and ranking 14th out of 153 Connecticut districts.

Parents will find several of the best schools in the state right here. North Mianus School is currently ranked #1 in Connecticut, while Riverside School is #2; both have extremely low poverty and absenteeism rates. Eastern Middle School has been ranked #2 in the state for three straight years, with proficiency rates far above state averages. Greenwich High School posts a 98% graduation rate and 87.8% science proficiency, compared to 91.2% and 50.5% statewide.

That said, performance varies sharply by school. New Lebanon School is the district's biggest success story: despite having the highest free/reduced-lunch rate (61.6%), it jumped from #186 to #10 in just two years. By contrast, Hamilton Avenue School has the lowest elementary ranking (#161) and the highest chronic absenteeism (17.5%), above the state average. Western Middle School (#41) and Julian Curtiss School (#73) also lag behind their peers. Interestingly, Glenville School spends the least per student ($13,446), while New Lebanon spends the most ($44,272), and Hamilton Avenue has the lowest student-teacher ratio (7.9:1) yet still struggles—showing class size and spending alone don't guarantee results. Several schools also show a 5th-grade math dip; for example, Old Greenwich School drops from 92.5% in 3rd-grade math to 74.1% in 5th-grade. Overall, the eastern part of the district—North Mianus, Riverside, and Eastern Middle—forms an exceptionally strong K-8 pipeline, while improving equity across higher-poverty schools remains the district's main challenge.

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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)			SAT English Language Arts (2026)	SAT Math (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/Discounted Lunch Recipients (2025)	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	NGSS Science 11th Grade	SAT English Language Arts 11th Grade	SAT Math 11th 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
Parkway School	Public	K-5	141 Lower Cross Rd.	Greenwich	06831	Western Connecticut Planning Region	Greenwich School District	No	No	No	No	(203) 869-7466	249	23	10.8	4.4%	198 (79.5%)	1 (0.4%)	16 (6.4%)	9 (3.6%)	0 (0.0%)	0 (0.0%)	25 (10.0%)	93	13^th of 492 public elementary schools	97.4%		92	17^th of 493 public elementary schools	96.6%	4	84.3					91.7	90.0	82.4				2531.0	2568.0	76.5				$30,098
Central Middle School	Public	6-8	9 Indian Rock Ln.	Greenwich	06830	Western Connecticut Planning Region	Greenwich School District	No	No	No	No	(203) 661-8500	483	52	9.2	19.9%	315 (65.2%)	7 (1.4%)	85 (17.6%)	37 (7.7%)	1 (0.2%)	0 (0.0%)	38 (7.9%)	86.7	31^st of 258 public middle schools	88.0%		87.3	25^th of 252 public middle schools	90.1%	6		77.2							77.5	70.2	69.0				76.6	67.1	63.5	$30,872
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
Eastern Middle School	Public	6-8	51 Hendrie Ave.	Riverside	06878	Western Connecticut Planning Region	Greenwich School District	No	No	No	No	(203) 637-1744	797	67	11.8	5.9%	488 (61.2%)	8 (1.0%)	123 (15.4%)	123 (15.4%)	0 (0.0%)	0 (0.0%)	55 (6.9%)	96.4	2^nd of 258 public middle schools	99.2%		96.8	2^nd of 252 public middle schools	99.2%			88.7							87.2	86.7	84.0				83.6	84.3	86.6	$26,475
Glenville School	Public	K-5	33 Riversville Rd.	Greenwich	06831	Western Connecticut Planning Region	Greenwich School District	No	No	No	No	(203) 531-9287	411	39	10.4	11.2%	273 (66.4%)	1 (0.2%)	65 (15.8%)	35 (8.5%)	0 (0.0%)	0 (0.0%)	37 (9.0%)	78.5	119^th of 492 public elementary schools	75.8%		87.7	47^th of 493 public elementary schools	90.5%	72	69.8					69.1	72.7	71.4				66.7	72.7	63.5				$26,964
Greenwich High School	Public	9-12	10 Hillside Rd.	Greenwich	06830	Western Connecticut Planning Region	Greenwich School District	No	No	No	No	(203) 625-8000	2,620	196	13.3	22.8%	1,510 (57.6%)	55 (2.1%)	679 (25.9%)	216 (8.2%)	5 (0.2%)	1 (0.0%)	152 (5.8%)								(n/a)			87.8															$27,820
Hamilton Avenue School	Public	PK, KG-5	184 Hamilton Avenue	Greenwich	06830	Western Connecticut Planning Region	Greenwich School District	No	No	No	Yes	(203) 869-1685	299	38	7.9	59.9%	92 (30.8%)	13 (4.3%)	167 (55.9%)	9 (3.0%)	3 (1.0%)	0 (0.0%)	15 (5.0%)	72.9	161^st of 492 public elementary schools	67.3%		69.2	177^th of 493 public elementary schools	64.1%	16	499.0					71.0	68.6	2524.0				58.1	2547.0	2561.0				$33,736
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
New Lebanon School	Public	PK, KG-5	25 Mead Ave.	Greenwich	06830	Western Connecticut Planning Region	Greenwich School District	No	No	No	Yes	(203) 531-9139	375	37	10.2	61.6%	113 (30.1%)	6 (1.6%)	218 (58.1%)	18 (4.8%)	2 (0.5%)	0 (0.0%)	18 (4.8%)	93.4	10^th of 492 public elementary schools	98.0%		81.9	89^th of 493 public elementary schools	81.9%	79	83.7					2489.0	82.5	87.8				86.5	2572.0	87.8				$28,398
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
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
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
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
Western Middle School	Public	6-8	1 Western Junior Hwy.	Greenwich	06830	Western Connecticut Planning Region	Greenwich School District	No	No	No	Yes	(203) 531-5700	563	64	8.8	38.7%	259 (46.0%)	27 (4.8%)	213 (37.8%)	32 (5.7%)	0 (0.0%)	1 (0.2%)	31 (5.5%)	82.9	41^st of 258 public middle schools	84.1%		79.6	51^st of 252 public middle schools	79.8%	10		71.6							63.9	75.4	72.0				69.3	58.9	61.1	$31,842
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

Districts nearby

District	Distance	# of Schools	Statewide Rank
Stamford School District	4.81 mi	21	129^th
Connecticut Technical Education and Career System	6.59 mi	17	138^th
Stamford Big Picture Learning Academy District	6.6 mi	1
Stamford Charter School for Excellence District	6.87 mi	1	61^st
New Canaan School District	6.9 mi	5	2^nd

See the top CT Connecticut districts

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.