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Thames River Magnet School

Q: Is Thames River Magnet School a good school?

Thames River Magnet School ranks 247 th of 493 Connecticut elementary schools. SchoolDigger rates this school 3 stars out of 5.

Public, Magnet Grades PK, KG-5

247^th

SchoolDigger Rank ?

of 493 Connecticut Elementary Schools

Better than 50% of Connecticut elementary schools

Summary

Thames River Magnet School is an elementary school in Groton, Connecticut, serving 531 students in grades PK-5 as part of the Groton School District. This school generally performs better than the district and state averages in English Language Arts, Mathematics, and Science assessments across grades 3-5.

In the 2024-2025 school year, 61.5% of 5th-grade students at Thames River Magnet School were proficient or better in ELA, compared to 58.1% in the Groton School District and 52.5% statewide. In Mathematics, 54.4% of 4th-grade students at the school were proficient or better, compared to 51.8% in the district and 51.4% statewide. The school also excels in Science, with 64.6% of 5th-grade students proficient or better on the NGSS assessment, outperforming the district at 60.6% and the state at 52.2%. Additionally, Thames River Magnet School has a unique population, ranking 1 out of 3 Connecticut elementary schools for military-connected students in 2020-2021.

When compared to nearby magnet schools, such as Mystic River Magnet School and Northeast Academy Magnet School, Thames River Magnet School generally performs better in both ELA and Mathematics assessments. The school also compares favorably to non-magnet schools in the area, such as Quaker Hill Elementary School. However, the school's high chronic absenteeism rates, ranging from 14.3% to 21.8% over the past few years, are an area that may require further attention and intervention.

501

Students ?

12.2

Student/teacher ratio ?

$22,566

Per pupil spending ?

74.3%

Free/discounted lunch ?

250 Brandegee Avenue
Groton, CT 06340

(860) 980-8230

District: Groton School District

Students who attend Thames River Magnet School usually attend:

Middle:	Groton Middle School
High:	Robert E. Fitch High School

Racial breakdown:

White:

39.9%

Hispanic:

25.3%

Two or more races:

16.2%

See top rated Connecticut elementary schools

Compare Thames River Magnet School to nearby elementary schools!

At a glance

▲ Ranking trend: Improving — 35th percentile in 2015 → 50th in 2025

Strengths

✓Ranking is trending up — up 15 percentile points since 2015

Worth a look

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

Students meeting standards (2024-2025) ?

This school52%

District avg52%

Connecticut avg50%

247^th of 493

Connecticut public elementary schools ?

Top 50%▲ up 15 pts since 2015

From bottom 35% (2015) to top 50% (2025)

See the entire ranking list of Connecticut Elementary Schools →

★★★★★

SchoolDigger rating ?

3^rd of 5Elementary Schools in the Groton School District

104^th of 156Groton 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
2025	51.5	247 of 493	49.9%	★★★☆☆
2024	52.9	238 of 497	52.1%	★★★☆☆
2023	50.2	239 of 491	51.3%	★★★☆☆
2022	49.3	252 of 490	48.6%	★★☆☆☆
2021	69.0	181 of 538	66.4%	★★★☆☆
2019	48.2	270 of 522	48.3%	★★☆☆☆
2018	36.2	344 of 532	35.3%	★★☆☆☆
2017	43.0	297 of 519	42.8%	★★☆☆☆
2016	50.9	258 of 518	50.2%	★★★☆☆
2015	40.3	358 of 551	35.0%	★★☆☆☆
2013	46.9	366 of 557	34.3%	★★☆☆☆
2012	52.6	354 of 564	37.2%	★★☆☆☆
2011	56.2	326 of 565	42.3%	★★☆☆☆
2010	45.2	399 of 579	31.1%	★★☆☆☆
2009	49.6	377 of 566	33.4%	★★☆☆☆
2008	42.9	397 of 565	29.7%	★★☆☆☆
2007	66.0	263 of 568	53.7%	★★★☆☆
2006	58.4	311 of 570	45.4%	★★☆☆☆

Female

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2025	41.5	147 of 232	36.6%	★★☆☆☆
2024	37.0	155 of 237	34.6%	★★☆☆☆
2023	52.1	130 of 230	43.5%	★★☆☆☆

Low Socio Economic Status

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2025	82.9	16 of 77	79.2%	★★★★☆

Male

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2025	35.0	163 of 239	31.8%	★★☆☆☆

Military Connected

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2021	65.0	1 of 3	66.7%	★★★★★

White

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2025	34.9	186 of 248	25.0%	★☆☆☆☆
2024	42.4	177 of 250	29.2%	★☆☆☆☆
2023	39.9	181 of 262	30.9%	★★☆☆☆

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)

Low Socio Economic Status (2025)79th percentile+29 vs school

Military Connected (2021)67th percentile~ school

Female (2025)37th percentile-13 vs school

Male (2025)32nd percentile-18 vs school

White (2025)25th percentile-25 vs school

By subject vs Connecticut (2024-2025) ?

Science65%+12 vs state

English Language Arts54%+4 vs state

Mathematics47%-3 vs state

★

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Schools Near Thames River Magnet School

Choose columns to see: Summary School Students/Teachers Ranking Test Scores Finance All

School													Students/Teachers											Ranking (2025)				Ranking (2024)				NGSS Science (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 5th Grade	SBAC English Language Arts 3rd Grade	SBAC English Language Arts 4th Grade	SBAC English Language Arts 5th Grade	SBAC Mathematics 3rd Grade	SBAC Mathematics 4th Grade	SBAC Mathematics 5th Grade	Total
Thames River Magnet School	Public, Magnet	PK, KG-5	250 Brandegee Avenue	Groton	06340	Southeastern Connecticut Planning Region	Groton School District	No	Yes	No	No	(860) 980-8230	501	41	12.2	74.3%	200 (39.9%)	48 (9.6%)	127 (25.3%)	39 (7.8%)	5 (1.0%)	1 (0.2%)	81 (16.2%)	51.5	247^th of 493 public elementary schools	49.9%		52.9	238^th of 497 public elementary schools	52.1%	9	64.6	39.4	60.3	61.5	34.8	54.4	50.8	$22,566
Catherine Kolnaski Magnet School	Public, Magnet	PK, KG-5	500 Poquonnock Rd.	Groton	06340	Southeastern Connecticut Planning Region	Groton School District	No	Yes	No	Yes	(860) 449-5608	375	31	11.9	80.3%	144 (38.4%)	18 (4.8%)	114 (30.4%)	30 (8.0%)	2 (0.5%)	0 (0.0%)	67 (17.9%)	53.5	242^nd of 493 public elementary schools	50.9%		56.4	220^th of 497 public elementary schools	55.7%	22	67.2	50.0	50.0	62.1	50.0	48.4	50.0	$21,873
Nathan Hale Arts Magnet School	Public, Magnet	PK, KG-5	37 Beech Drive	New London	06320	Southeastern Connecticut Planning Region	New London School District	No	Yes	No	Yes	(860) 447-6060	445	56	8.0	77.1%	69 (15.5%)	61 (13.7%)	242 (54.4%)	8 (1.8%)	1 (0.2%)	1 (0.2%)	63 (14.2%)	7	469^th of 493 public elementary schools	4.9%		7.4	460^th of 497 public elementary schools	7.4%	9	30.1	15.2	17.9	22.9	8.9	12.5	10.8	$25,644
Regional Multicultural Magnet School	Public, Magnet	K-5	1 Bulkeley Place	New London	06320	Southeastern Connecticut Planning Region	Learn	No	Yes	No	Yes	(860) 437-7775	469	35	13.5	70.6%	88 (18.8%)	43 (9.2%)	264 (56.3%)	6 (1.3%)	0 (0.0%)	0 (0.0%)	68 (14.5%)	21.8	363^rd of 493 public elementary schools	26.4%		19.4	367^th of 497 public elementary schools	26.2%	4		30.6	36.5	52.7	23.6	25.4	28.4	$19,820
C.B. Jennings International Elementary Magnet	Public, Magnet	PK, KG-5	50 Mercer Street	New London	06320	Southeastern Connecticut Planning Region	New London School District	No	Yes	No	Yes	(860) 447-6050	406	43	9.4	91.6%	26 (6.4%)	81 (20.0%)	266 (65.5%)	3 (0.7%)	1 (0.2%)	1 (0.2%)	28 (6.9%)	4.6	486^th of 493 public elementary schools	1.4%		5.4	485^th of 497 public elementary schools	2.4%	1	19.7	12.2	15.1		12.2	11.3	7.9	$26,349
Winthrop STEM Elementary Magnet School	Public, Magnet	PK, KG-5	74 Grove Street	New London	06320	Southeastern Connecticut Planning Region	New London School District	No	Yes	No	Yes	(860) 447-6070	449	42	10.8	73.9%	74 (16.5%)	75 (16.7%)	243 (54.1%)	5 (1.1%)	4 (0.9%)	1 (0.2%)	47 (10.5%)	22.8	355^th of 493 public elementary schools	28.0%		22.5	358^th of 497 public elementary schools	28.0%	3	48.8	21.3	35.2	45.2	22.7	38.0	22.6	$23,813
Charles Barnum Magnet School	Public	PK, KG-5	68 Briar Hill Rd.	Groton	06340	Southeastern Connecticut Planning Region	Groton School District	No	No	No	No	(860) 449-5640	339	29	11.7	51.3%	174 (51.3%)	24 (7.1%)	93 (27.4%)	8 (2.4%)	0 (0.0%)	1 (0.3%)	39 (11.5%)	37.5	295^th of 493 public elementary schools	40.2%		48.9	255^th of 497 public elementary schools	48.7%	40	59.4	29.3	45.7	51.6	37.9	43.5		$22,716
Mystic River Magnet School	Public, Magnet	PK, KG-5	160 Fishtown Rd	Mystic	06355	Southeastern Connecticut Planning Region	Groton School District	No	Yes	No	No	(860) 980-8300	520	44	11.9	81.3%	224 (43.1%)	38 (7.3%)	160 (30.8%)	35 (6.7%)	3 (0.6%)	2 (0.4%)	58 (11.2%)	34.6	307^th of 493 public elementary schools	37.7%		36	302^nd of 497 public elementary schools	39.2%	5		37.0	47.5		52.1	39.3	34.5	$23,852
Great Neck Elementary School	Public	PK, KG-5	165 Great Neck Rd.	Waterford	06385	Southeastern Connecticut Planning Region	Waterford School District	No	No	No	Yes	(860) 442-2593	309	30	10.2	29.1%	220 (71.2%)	4 (1.3%)	51 (16.5%)	5 (1.6%)	0 (0.0%)	3 (1.0%)	26 (8.4%)	65.8	199^th of 493 public elementary schools	59.6%		73.8	151^st of 497 public elementary schools	69.6%	48			56.4	63.0		61.8	65.2	$25,350
Quaker Hill Elementary School	Public	K-5	285 Bloomingdale Rd.	Quaker Hill	06375	Southeastern Connecticut Planning Region	Waterford School District	No	No	No	Yes	(860) 442-1095	331	30	10.9	38.4%	197 (59.5%)	15 (4.5%)	68 (20.5%)	30 (9.1%)	1 (0.3%)	2 (0.6%)	18 (5.4%)	68	183^rd of 493 public elementary schools	62.9%		67	187^th of 497 public elementary schools	62.4%	4	59.3	62.1		61.0	67.2		57.6	$25,440

Frequently Asked Questions about Thames River Magnet School

What is the racial makeup of Thames River Magnet School?

Students at Thames River Magnet School are 40% White, 25% Hispanic, 16% Two or more races, 10% African American, 8% Asian.

How many students attend Thames River Magnet School?

In the 2024-25 school year, 501 students attended Thames River Magnet School.

Is Thames River Magnet School a good school?

Thames River Magnet School ranks 247^th of 493 Connecticut elementary schools. SchoolDigger rates this school 3 stars out of 5.

What schools do graduates of Thames River Magnet School attend?

Students who attend Thames River Magnet School usually go on to attend:

Middle : Groton Middle School
High : Robert E. Fitch High School

What district is Thames River Magnet School in?

Groton School District

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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.