Best High Schools in Connecticut

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Find the best Connecticut high schools with SchoolDigger.com! Focused on test scores for accurate rankings, our user-friendly site simplifies your search. Empower your decisions by exploring top-rated schools, only on SchoolDigger.com - the ultimate guide to K-12 schools!

Year after year, SchoolDigger is always the first to publish Connecticut test scores and rankings. Other sites use stale test score data that are several years old! Be in the know with the very latest performance metrics.

The list is updated annually upon the release of the NGSS and SAT test scores by the Connecticut Department of Education. The most recent update was on Thursday, August 28, 2025.

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School	Students/Teachers	Per Pupil Expenditures (2025)	Ranking (2025 vs 2024)	ID
11	Shepaug Valley School	Public	6-12	159 South Street	Washington	06793	Northwest Hills Planning Region	Regional School District 12	No	No	No	Yes	(860) 868-7326	486	53	9.1	18.3%	405 (83.3%)	4 (0.8%)	52 (10.7%)	3 (0.6%)	0 (0.0%)	0 (0.0%)	21 (4.3%)	$32,688	91.3	80.3	27	16	090353001632
12	Guilford High School	Public	9-12	605 New England Rd.	Guilford	06437	South Central Connecticut Planning Region	Guilford School District	No	No	No	No	(203) 453-2741	1,008	85	11.8	14.6%	801 (79.5%)	19 (1.9%)	85 (8.4%)	41 (4.1%)	0 (0.0%)	2 (0.2%)	56 (5.6%)	$22,682	90.5	83.6	23	11	090180000332
13	Farmington High School	Public	9-12	10 Monteith Dr	Farmington	06032	Capitol Planning Region	Farmington School District	No	No	No	No	(860) 673-2514	1,261	107	11.7	20.8%	619 (49.1%)	58 (4.6%)	152 (12.1%)	343 (27.2%)	2 (0.2%)	1 (0.1%)	77 (6.1%)	$22,349	90.4	89.9	13		090156000273
14	Canton High School	Public	9-12	76 Simonds Avenue	Canton	06019	Capitol Planning Region	Canton School District	No	No	No	No	(860) 693-7707	443	46	9.6	21.9%	348 (78.6%)	41 (9.3%)	28 (6.3%)	15 (3.4%)	0 (0.0%)	0 (0.0%)	11 (2.5%)	$25,743	90	91.1	10	4	090069000118
15	Daniel Hand High School	Public	9-12	286 Green Hill Rd.	Madison	06443	South Central Connecticut Planning Region	Madison School District	No	No	No	Yes	(203) 245-6350	751	77	9.8	5.5%	616 (82.0%)	7 (0.9%)	53 (7.1%)	27 (3.6%)	3 (0.4%)	0 (0.0%)	40 (5.3%)	$28,521	89.4	91.8	8	7	090228000411
16	Haddam-Killingworth High School	Public	9-12	95 Little City Road	Higganum	06441	Lower Connecticut River Valley Planning Region	Regional School District 17	No	No	No	No	(860) 345-8541	466	49	9.5	13.7%	409 (87.8%)	6 (1.3%)	23 (4.9%)	10 (2.1%)	1 (0.2%)	0 (0.0%)	16 (3.4%)	$30,768	88.4	85.9	18	2	090353900759
17	Trumbull High School	Public	9-12	72 Strobel Rd.	Trumbull	06611	Greater Bridgeport Planning Region	Trumbull School District	No	No	No	No	(203) 452-4555	2,152	149	14.4	21.6%	1,277 (59.3%)	156 (7.2%)	437 (20.3%)	227 (10.5%)	4 (0.2%)	4 (0.2%)	46 (2.1%)	$21,221	88.2	88	15	2	090462000937
18	RHAM High School	Public	9-12	85 Wall St.	Hebron	06248	Capitol Planning Region	Regional School District 08	No	No	No	No	(860) 228-9474	714	77	9.3	18.1%	605 (84.7%)	7 (1.0%)	68 (9.5%)	5 (0.7%)	1 (0.1%)	1 (0.1%)	24 (3.4%)	$27,942	86.8	79	32	14	090375000772
19	East Lyme High School	Public	9-12	30 Chesterfield Rd.	East Lyme	06333	Southeastern Connecticut Planning Region	East Lyme School District	No	No	No	No	(860) 739-6946	890	90	9.9	24.3%	645 (72.5%)	17 (1.9%)	90 (10.1%)	88 (9.9%)	4 (0.4%)	1 (0.1%)	43 (4.8%)	$25,597	86.5	80.7	25	6	090132000223
20	Granby Memorial High School	Public	9-12	54 North Granby Road	Granby	06035	Capitol Planning Region	Granby School District	No	No	No	No	(860) 844-3014	564	48	11.8	15.2%	448 (79.4%)	49 (8.7%)	36 (6.4%)	14 (2.5%)	2 (0.4%)	0 (0.0%)	15 (2.7%)	$23,387	86.3	90.3	11	9	090168000289

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New! SchoolDigger ranking lists for CT student subgroups:

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About our rankings:

Schooldigger calculates school rankings based on SAT English Language Arts, SAT Math, NGSS Science test scores released by the Connecticut Department of Education.
These rankings were last updated on August 28, 2025, and are based on the most recent test scores available. We update rankings as we receive new test scores from the Connecticut Department of Education, usually on a yearly basis.
Our sources of data include the National Center for Education Statistics, U.S. Department of Education and the Connecticut Department of Education.
For more information about our ranking process, please see our Ranking FAQ. Details about our methodology are here.

Educational resources:

Public School Districts and Their Services: A Comprehensive Guide

State-Administered Standardized Tests: A Comprehensive Guide

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

School														Students/Teachers											Per Pupil Expenditures (2025)							Ranking (2025 vs 2024)					ID
Rank (of 141)	School	Type	Grades	Address	City	Zip	County	District	Is Charter	Is Magnet	Is Virtual	Is Title I	Phone	# Students	Full-time Teachers	Student/ Teacher Ratio	Free/Disc Lunch Recipients	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Per Pupil Expenditures: Total	Personnel from Federal Funds	Non-Personnel from Federal Funds	Total from Federal Funds	Personnel from State and Local Funds	Non-Personnel from State and Local Funds	Total from State and Local Funds	Average Standard Score (2025)	Average Standard Score (2024)	Rank (2024)	Rank Change from 2024	SchoolDigger Rating (2025)	ID
11	Shepaug Valley School	Public	6-12	159 South Street	Washington	06793	Northwest Hills Planning Region	Regional School District 12	No	No	No	Yes	(860) 868-7326	486	53	9.1	18.3%	405 (83.3%)	4 (0.8%)	52 (10.7%)	3 (0.6%)	0 (0.0%)	0 (0.0%)	21 (4.3%)	$32,688							91.3	80.3	27	16		090353001632
12	Guilford High School	Public	9-12	605 New England Rd.	Guilford	06437	South Central Connecticut Planning Region	Guilford School District	No	No	No	No	(203) 453-2741	1,008	85	11.8	14.6%	801 (79.5%)	19 (1.9%)	85 (8.4%)	41 (4.1%)	0 (0.0%)	2 (0.2%)	56 (5.6%)	$22,682							90.5	83.6	23	11		090180000332
13	Farmington High School	Public	9-12	10 Monteith Dr	Farmington	06032	Capitol Planning Region	Farmington School District	No	No	No	No	(860) 673-2514	1,261	107	11.7	20.8%	619 (49.1%)	58 (4.6%)	152 (12.1%)	343 (27.2%)	2 (0.2%)	1 (0.1%)	77 (6.1%)	$22,349							90.4	89.9	13			090156000273
14	Canton High School	Public	9-12	76 Simonds Avenue	Canton	06019	Capitol Planning Region	Canton School District	No	No	No	No	(860) 693-7707	443	46	9.6	21.9%	348 (78.6%)	41 (9.3%)	28 (6.3%)	15 (3.4%)	0 (0.0%)	0 (0.0%)	11 (2.5%)	$25,743							90	91.1	10	4		090069000118
15	Daniel Hand High School	Public	9-12	286 Green Hill Rd.	Madison	06443	South Central Connecticut Planning Region	Madison School District	No	No	No	Yes	(203) 245-6350	751	77	9.8	5.5%	616 (82.0%)	7 (0.9%)	53 (7.1%)	27 (3.6%)	3 (0.4%)	0 (0.0%)	40 (5.3%)	$28,521							89.4	91.8	8	7		090228000411
16	Haddam-Killingworth High School	Public	9-12	95 Little City Road	Higganum	06441	Lower Connecticut River Valley Planning Region	Regional School District 17	No	No	No	No	(860) 345-8541	466	49	9.5	13.7%	409 (87.8%)	6 (1.3%)	23 (4.9%)	10 (2.1%)	1 (0.2%)	0 (0.0%)	16 (3.4%)	$30,768							88.4	85.9	18	2		090353900759
17	Trumbull High School	Public	9-12	72 Strobel Rd.	Trumbull	06611	Greater Bridgeport Planning Region	Trumbull School District	No	No	No	No	(203) 452-4555	2,152	149	14.4	21.6%	1,277 (59.3%)	156 (7.2%)	437 (20.3%)	227 (10.5%)	4 (0.2%)	4 (0.2%)	46 (2.1%)	$21,221							88.2	88	15	2		090462000937
18	RHAM High School	Public	9-12	85 Wall St.	Hebron	06248	Capitol Planning Region	Regional School District 08	No	No	No	No	(860) 228-9474	714	77	9.3	18.1%	605 (84.7%)	7 (1.0%)	68 (9.5%)	5 (0.7%)	1 (0.1%)	1 (0.1%)	24 (3.4%)	$27,942							86.8	79	32	14		090375000772
19	East Lyme High School	Public	9-12	30 Chesterfield Rd.	East Lyme	06333	Southeastern Connecticut Planning Region	East Lyme School District	No	No	No	No	(860) 739-6946	890	90	9.9	24.3%	645 (72.5%)	17 (1.9%)	90 (10.1%)	88 (9.9%)	4 (0.4%)	1 (0.1%)	43 (4.8%)	$25,597							86.5	80.7	25	6		090132000223
20	Granby Memorial High School	Public	9-12	54 North Granby Road	Granby	06035	Capitol Planning Region	Granby School District	No	No	No	No	(860) 844-3014	564	48	11.8	15.2%	448 (79.4%)	49 (8.7%)	36 (6.4%)	14 (2.5%)	2 (0.4%)	0 (0.0%)	15 (2.7%)	$23,387							86.3	90.3	11	9		090168000289