Beta You're viewing our redesigned school list. Prefer the classic layout?

Best Public Schools in Zip Code 06878

At a glance

Schools

2,002

Students

5-star schools

Top rankedNorth Mianus School1^st of 492 Connecticut elementary schools

See the top-ranked Connecticut schools →

Summary:

Zip code 06878 (Riverside, CT) contains 4 schools—1 middle school and 3 elementary schools, with no high schools—all part of the top-ranked Greenwich School District, which is rated #14 out of 153 districts in Connecticut. Eastern Middle School, Riverside School, North Mianus School, and International School At Dundee all hold 5-star SchoolDigger ratings and serve an affluent community with extremely low poverty rates, though students must travel elsewhere in the district for high school.

North Mianus School is the standout, ranked #1 out of 491 Connecticut elementary schools for 2025-2026, with 3rd grade ELA proficiency at 94.9%, the lowest student-teacher ratio (10.2), and the lowest per-student spending ($17,213). Riverside School is nearly its equal at #2 in the state, with 3rd grade math at 94.4% and the lowest free/reduced lunch rate (1.59%). Eastern Middle School has been ranked #2 out of 258 middle schools for three straight years, with 8th grade science proficiency at 88.7%—more than double the state average. International School At Dundee is the relative outlier: still excellent at #17 statewide (97th percentile), but with the highest free/reduced lunch rate (10.53%), the highest spending ($22,395 per student), and the lowest scores in several categories, including 5th grade ELA at 78.8%.

Chronic absenteeism across all four schools ranges from just 4.6% to 6.4%, far below the Connecticut state average of 16.4%. A striking finding is that spending does not predict performance: International School At Dundee spends the most yet ranks lowest, while North Mianus School spends the least yet ranks #1 in the state. Year-to-year variability exists even among elite schools—Riverside School's 5th grade math dropped from 93.6% to 87.8%, and International School At Dundee's 5th grade science fell from 91.5% to 78.8%—likely reflecting cohort differences rather than school quality. Overall, this is one of the strongest school communities in Connecticut.

Load more schools when map is moved

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/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	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
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
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
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
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

Cities Near Zip Code 06878

City	Distance	# of Schools	Statewide Rank
Riverside	0.14 mi	4	4^th
Old Greenwich	0.85 mi	1	2^nd
Cos Cob	0.9 mi	1	88^th
Greenwich	1.52 mi	9	32^nd
Stamford	1.81 mi	24	148^th

See the top CT Connecticut cities

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.