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Ella T. Grasso Technical High School

Q: Is Ella T. Grasso Technical High School a good school?

Ella T. Grasso Technical High School ranks 86 th of 141 Connecticut high schools. SchoolDigger rates this school 2 stars out of 5.

Public Grades 9-12

86^th

SchoolDigger Rank ?

of 141 Connecticut High Schools

Better than 39% of Connecticut high schools

Summary

Ella T. Grasso Technical High School is a public high school serving grades 9-12 in Groton, Connecticut, with 674 students. The school is part of the Connecticut Technical Education and Career System district, which is ranked 144 out of 156 districts in the state and has a 0-star rating from SchoolDigger.

Academically, Ella T. Grasso Technical High School has consistently ranked in the bottom half of Connecticut high schools, with standardized test scores below the state average. In 2024-2025, only 43% of 11th-grade students were proficient or better in SAT/English Language Arts, compared to the state average of 58%. In SAT/Math, only 11.5% of 11th-graders were proficient or better, compared to the state average of 31.1%. However, the school's four-year graduation rates have been relatively strong, ranging from 88.4% to 95.9% in recent years, which is comparable to or slightly higher than the state average.

Compared to nearby high schools, such as East Lyme High School, Wheeler High School, Stonington High School, and Ledyard High School, Ella T. Grasso Technical High School's academic performance is generally lower. The nearby Marine Science Magnet High School, which is also part of the Groton school district, has consistently outperformed Ella T. Grasso Technical High School in academic measures.

684

Students ?

11.6

Student/teacher ratio ?

$30,082

Per pupil spending ?

51.6%

Free/discounted lunch ?

189 Fort Hill Rd.
Groton, CT 06340

(860) 448-0220

District: Connecticut Technical Education and Career System

Racial breakdown:

Hispanic:

41.7%

White:

37.0%

Two or more races:

10.7%

See top rated Connecticut high schools

Compare Ella T. Grasso Technical High School to nearby high schools!

At a glance

▲ Ranking trend: Improving — 25th percentile in 2012 → 39th in 2025

Strengths

✓97% graduate in 4 years — above the Connecticut average (89%)

✓Ranking is trending up — up 14 percentile points since 2012

✓Small classes — about 12 students per teacher

Worth a look

!Test scores below the Connecticut average (34% vs 46% meeting standards)

!Some student groups rank well below the school's overall statewide standing

!Math scores 20 pts below the Connecticut average

Students meeting standards (2024-2025) ?

This school34%

District avg27%

Connecticut avg46%

86^th of 141

Connecticut public high schools ?

Bottom 39%▲ up 3 pts since 2015

From bottom 36% (2015) to bottom 39% (2025)

See the entire ranking list of Connecticut High Schools →

★★★★★

SchoolDigger rating ?

4^th of 13High Schools in the Connecticut Technical Education and Career System

144^th of 156Connecticut Technical Education and Career System 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
2025	30.7	86 of 141	39.0%	★★☆☆☆
2024	38.3	82 of 145	43.4%	★★☆☆☆
2023	37.2	82 of 142	42.3%	★★☆☆☆
2021	25.1	149 of 200	25.5%	★☆☆☆☆
2019	11.1	111 of 121	8.3%	☆☆☆☆☆
2017	25.8	102 of 140	27.1%	★☆☆☆☆
2016	28.7	93 of 132	29.5%	★★☆☆☆
2015	39.9	126 of 196	35.7%	★★☆☆☆
2013	28.8	158 of 193	18.1%	★☆☆☆☆
2012	38.1	141 of 188	25.0%	★☆☆☆☆
2011	46.5	127 of 189	32.8%	★★☆☆☆
2010	37.5	140 of 186	24.7%	★☆☆☆☆
2009	45.8	118 of 176	33.0%	★★☆☆☆
2008	23.3	146 of 176	17.0%	★☆☆☆☆
2007	49.3	122 of 176	30.7%	★★☆☆☆

Female

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2021	24.2	142 of 189	24.9%	★☆☆☆☆

Hispanic

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2024	75.5	10 of 63	84.1%	★★★★☆
2022	43.3	29 of 59	50.8%	★★★☆☆
2021	38.9	58 of 104	44.2%	★★☆☆☆

Low Socio Economic Status

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2024	14.6	60 of 65	7.7%	☆☆☆☆☆
2023	22.7	57 of 70	18.6%	★☆☆☆☆
2021	44.7	81 of 155	47.7%	★★☆☆☆
2019	14.8	34 of 37	8.1%	★☆☆☆☆

Male

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2021	24.0	141 of 182	22.5%	★☆☆☆☆
2019	6.4	78 of 80	2.5%	☆☆☆☆☆

Special Education

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2021	39.9	104 of 175	40.6%	★★☆☆☆

White

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2023	7.2	111 of 116	4.3%	☆☆☆☆☆
2021	13.6	137 of 155	11.6%	★☆☆☆☆
2019	1.7	113 of 113	0.0%	☆☆☆☆☆

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)

Hispanic (2024)84th percentile+41 vs school

Special Education (2021)41st percentile+15 vs school

Female (2021)25th percentile~ school

Male (2021)23rd percentile-3 vs school

Low Socio Economic Status (2024)8th percentile-36 vs school

White (2023)4th percentile-38 vs school

By subject vs Connecticut (2024-2025) ?

Science48%~ state avg

English Language Arts43%-15 vs state

Math12%-20 vs state

★

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Schools Near Ella T. Grasso Technical High School

School	Students/Teachers	Ranking (2025)	Ranking (2024)	NGSS Science (2025)	SAT English Language Arts (2025)	SAT Math (2025)	SBAC English Language Arts (2025)	SBAC Mathematics (2025)	Per Pupil Expenditures (2025)
Ella T. Grasso Technical High School	Public	9-12	189 Fort Hill Rd.	Groton	06340	Southeastern Connecticut Planning Region	Connecticut Technical Education and Career System	No	No	No	No	(860) 448-0220	684	59	11.6	51.6%	253 (37.0%)	52 (7.6%)	285 (41.7%)	6 (0.9%)	7 (1.0%)	1 (0.1%)	73 (10.7%)	30.7	86^th of 141 public high schools	39.0%	38.3	82^nd of 145 public high schools	43.4%	4		48.1	43.0	11.5						$30,082
Robert E. Fitch High School	Public	9-12	101 Groton Long Point Road	Groton	06340	Southeastern Connecticut Planning Region	Groton School District	No	No	No	No	(860) 449-7200	942	84	11.1	60.0%	400 (42.5%)	85 (9.0%)	244 (25.9%)	67 (7.1%)	11 (1.2%)	4 (0.4%)	127 (13.5%)							(n/a)		43.0								$23,650
Marine Science Magnet High School	Public, Magnet	9-12	130 Shennecossett Road	Groton	06340	Southeastern Connecticut Planning Region	Learn	No	Yes	No	No	(860) 434-4800	274	26	10.5	30.7%	166 (60.6%)	4 (1.5%)	52 (19.0%)	15 (5.5%)	0 (0.0%)	0 (0.0%)	34 (12.4%)	85.4	23^rd of 141 public high schools	83.7%	76.3	35^th of 145 public high schools	75.9%	12		71.6	77.8	49.2						$20,375
New London Visual and Performing Arts Magnet Pathway	Public, Magnet	6-12	36 Waller Street	New London	06320	Southeastern Connecticut Planning Region	New London School District	No	Yes	No	Yes	(860) 449-6800	268	24	11.0	81.3%	47 (17.5%)	47 (17.5%)	115 (42.9%)	3 (1.1%)	3 (1.1%)	0 (0.0%)	52 (19.4%)							(n/a)	43.8				30.2	29.8		9.5	17.4	$24,173
New London High School	Public	9-12	20 Chester Street	New London	06320	Southeastern Connecticut Planning Region	New London School District	No	No	No	Yes	(860) 437-6400	605	44	13.6	91.2%	35 (5.8%)	97 (16.0%)	428 (70.7%)	5 (0.8%)	2 (0.3%)	1 (0.2%)	37 (6.1%)	2.4	141^st of 141 public high schools	0.0%				(n/a)		6.4	11.7							$23,639
Science and Technology Magnet Pathway for High School Grades	Public, Magnet	9-12	20 Chester Street	New London	06320	Southeastern Connecticut Planning Region	New London School District	No	Yes	No	Yes	(860) 447-6400	171	13	13.2	78.4%	31 (18.1%)	35 (20.5%)	74 (43.3%)	3 (1.8%)	1 (0.6%)	0 (0.0%)	27 (15.8%)							(n/a)		18.8								$23,639
Waterford High School	Public	9-12	20 Rope Ferry Rd.	Waterford	06385	Southeastern Connecticut Planning Region	Waterford School District	No	No	No	Yes	(860) 437-6956	713	64	11.0	30.6%	525 (73.6%)	16 (2.2%)	80 (11.2%)	41 (5.8%)	3 (0.4%)	1 (0.1%)	46 (6.5%)	80.7	29^th of 141 public high schools	79.4%	84.7	21^st of 145 public high schools	85.5%	8		55.6	77.3	57.5						$29,429
Ledyard High School	Public	9-12	24 Gallup Hill Rd.	Ledyard	06339	Southeastern Connecticut Planning Region	Ledyard School District	No	No	No	No	(860) 464-9600	731	64	11.4	27.9%	516 (70.6%)	21 (2.9%)	89 (12.2%)	19 (2.6%)	10 (1.4%)	2 (0.3%)	72 (9.8%)	76.2	36^th of 141 public high schools	74.5%	58.2	62^nd of 145 public high schools	57.2%	26			78.6	38.2						$20,772
Stonington High School	Public	9-12	176 South Broad St.	Pawcatuck	06379	Southeastern Connecticut Planning Region	Stonington School District	No	No	No	Yes	(860) 599-5781	543	48	11.3	24.5%	454 (83.6%)	5 (0.9%)	35 (6.4%)	7 (1.3%)	1 (0.2%)	1 (0.2%)	40 (7.4%)	85.9	21^st of 141 public high schools	85.1%	89.9	12^th of 145 public high schools	91.7%	9		78.7	82.9	42.3						$26,628
Wheeler High School	Public	7-12	297 Norwich/Westerly Rd.	North Stonington	06359	Southeastern Connecticut Planning Region	North Stonington School District	No	No	No	Yes	(860) 535-0377	344	43	8.0	18.6%	306 (89.0%)	1 (0.3%)	20 (5.8%)	4 (1.2%)	3 (0.9%)	1 (0.3%)	9 (2.6%)							(n/a)			81.6			68.9	60.4			$22,907

Frequently Asked Questions about Ella T. Grasso Technical High School

What district is Ella T. Grasso Technical High School in?

Connecticut Technical Education and Career System

Is Ella T. Grasso Technical High School a good school?

Ella T. Grasso Technical High School ranks 86^th of 141 Connecticut high schools. SchoolDigger rates this school 2 stars out of 5.

How many students attend Ella T. Grasso Technical High School?

In the 2024-25 school year, 684 students attended Ella T. Grasso Technical High School.

What is the racial makeup of Ella T. Grasso Technical High School?

Students at Ella T. Grasso Technical High School are 42% Hispanic, 37% White, 11% Two or more races, 8% African American, 1% American Indian, 1% Not Specified.

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CTConnecticut High School Rankings

CTConnecticut District Rankings

Schools in Groton, CT

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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.

School													Students/Teachers											Ranking (2025)				Ranking (2024)				NGSS Science (2025)		SAT English Language Arts (2025)	SAT Math (2025)	SBAC English Language Arts (2025)			SBAC Mathematics (2025)		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	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	SchoolDigger Rating (2025)	Average Standard Score (2024)	Statewide Rank (2024)	State Percentile (2024)	Rank Change from Previous Year	NGSS Science 8th Grade	NGSS Science 11th Grade	SAT English Language Arts 11th Grade	SAT Math 11th Grade	SBAC English Language Arts 6th Grade	SBAC English Language Arts 7th Grade	SBAC English Language Arts 8th Grade	SBAC Mathematics 6th Grade	SBAC Mathematics 7th Grade	Total
Ella T. Grasso Technical High School	Public	9-12	189 Fort Hill Rd.	Groton	06340	Southeastern Connecticut Planning Region	Connecticut Technical Education and Career System	No	No	No	No	(860) 448-0220	684	59	11.6	51.6%	253 (37.0%)	52 (7.6%)	285 (41.7%)	6 (0.9%)	7 (1.0%)	1 (0.1%)	73 (10.7%)	30.7	86^th of 141 public high schools	39.0%		38.3	82^nd of 145 public high schools	43.4%	4		48.1	43.0	11.5						$30,082
Robert E. Fitch High School	Public	9-12	101 Groton Long Point Road	Groton	06340	Southeastern Connecticut Planning Region	Groton School District	No	No	No	No	(860) 449-7200	942	84	11.1	60.0%	400 (42.5%)	85 (9.0%)	244 (25.9%)	67 (7.1%)	11 (1.2%)	4 (0.4%)	127 (13.5%)								(n/a)		43.0								$23,650
Marine Science Magnet High School	Public, Magnet	9-12	130 Shennecossett Road	Groton	06340	Southeastern Connecticut Planning Region	Learn	No	Yes	No	No	(860) 434-4800	274	26	10.5	30.7%	166 (60.6%)	4 (1.5%)	52 (19.0%)	15 (5.5%)	0 (0.0%)	0 (0.0%)	34 (12.4%)	85.4	23^rd of 141 public high schools	83.7%		76.3	35^th of 145 public high schools	75.9%	12		71.6	77.8	49.2						$20,375
New London Visual and Performing Arts Magnet Pathway	Public, Magnet	6-12	36 Waller Street	New London	06320	Southeastern Connecticut Planning Region	New London School District	No	Yes	No	Yes	(860) 449-6800	268	24	11.0	81.3%	47 (17.5%)	47 (17.5%)	115 (42.9%)	3 (1.1%)	3 (1.1%)	0 (0.0%)	52 (19.4%)								(n/a)	43.8				30.2	29.8		9.5	17.4	$24,173
New London High School	Public	9-12	20 Chester Street	New London	06320	Southeastern Connecticut Planning Region	New London School District	No	No	No	Yes	(860) 437-6400	605	44	13.6	91.2%	35 (5.8%)	97 (16.0%)	428 (70.7%)	5 (0.8%)	2 (0.3%)	1 (0.2%)	37 (6.1%)	2.4	141^st of 141 public high schools	0.0%					(n/a)		6.4	11.7							$23,639
Science and Technology Magnet Pathway for High School Grades	Public, Magnet	9-12	20 Chester Street	New London	06320	Southeastern Connecticut Planning Region	New London School District	No	Yes	No	Yes	(860) 447-6400	171	13	13.2	78.4%	31 (18.1%)	35 (20.5%)	74 (43.3%)	3 (1.8%)	1 (0.6%)	0 (0.0%)	27 (15.8%)								(n/a)		18.8								$23,639
Waterford High School	Public	9-12	20 Rope Ferry Rd.	Waterford	06385	Southeastern Connecticut Planning Region	Waterford School District	No	No	No	Yes	(860) 437-6956	713	64	11.0	30.6%	525 (73.6%)	16 (2.2%)	80 (11.2%)	41 (5.8%)	3 (0.4%)	1 (0.1%)	46 (6.5%)	80.7	29^th of 141 public high schools	79.4%		84.7	21^st of 145 public high schools	85.5%	8		55.6	77.3	57.5						$29,429
Ledyard High School	Public	9-12	24 Gallup Hill Rd.	Ledyard	06339	Southeastern Connecticut Planning Region	Ledyard School District	No	No	No	No	(860) 464-9600	731	64	11.4	27.9%	516 (70.6%)	21 (2.9%)	89 (12.2%)	19 (2.6%)	10 (1.4%)	2 (0.3%)	72 (9.8%)	76.2	36^th of 141 public high schools	74.5%		58.2	62^nd of 145 public high schools	57.2%	26			78.6	38.2						$20,772
Stonington High School	Public	9-12	176 South Broad St.	Pawcatuck	06379	Southeastern Connecticut Planning Region	Stonington School District	No	No	No	Yes	(860) 599-5781	543	48	11.3	24.5%	454 (83.6%)	5 (0.9%)	35 (6.4%)	7 (1.3%)	1 (0.2%)	1 (0.2%)	40 (7.4%)	85.9	21^st of 141 public high schools	85.1%		89.9	12^th of 145 public high schools	91.7%	9		78.7	82.9	42.3						$26,628
Wheeler High School	Public	7-12	297 Norwich/Westerly Rd.	North Stonington	06359	Southeastern Connecticut Planning Region	North Stonington School District	No	No	No	Yes	(860) 535-0377	344	43	8.0	18.6%	306 (89.0%)	1 (0.3%)	20 (5.8%)	4 (1.2%)	3 (0.9%)	1 (0.3%)	9 (2.6%)								(n/a)			81.6			68.9	60.4			$22,907