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Deans Mill School

Q: Is Deans Mill School a good school?

Deans Mill School ranks 60 th of 493 Connecticut elementary schools. SchoolDigger rates this school 4 stars out of 5.

Public Grades PK, KG-5

60^th

SchoolDigger Rank ?

of 493 Connecticut Elementary Schools

Better than 88% of Connecticut elementary schools

Summary

Deans Mill School is an exceptional elementary school located in Stonington, Connecticut, serving 423 students in grades PK-5. As part of the Stonington School District, which is ranked 36 out of 156 districts in the state, Deans Mill School consistently outperforms its peers, earning a 4-star rating from SchoolDigger.

Academically, Deans Mill School shines, with students significantly outperforming state and district averages in standardized tests across all grade levels and subject areas. For example, in the 2024-2025 school year, 78.9% of 3rd graders, 70.8% of 4th graders, and 82.9% of 5th graders were proficient or better in SBAC/English Language Arts, compared to the state averages of 46.9%, 51.4%, and 52.5%, respectively. The school's female students and white students also perform exceptionally well, ranking 26th and 54th, respectively, out of Connecticut elementary schools in the 2024-2025 school year. Additionally, the school's special education students rank 12th out of 371 schools in the 2020-2021 school year.

Deans Mill School's strong academic performance is further highlighted by its comparisons to nearby schools. The school significantly outperforms the nearby West Vine Street School, also part of the Stonington School District, across all grade levels and subject areas. Additionally, Deans Mill School consistently outperforms the nearby magnet schools in the Groton and New London school districts, despite their specialized curricula and programs.

429

Students ?

11.0

Student/teacher ratio ?

$22,845

Per pupil spending ?

12.6%

Free/discounted lunch ?

35 Deans Mill Rd.
Stonington, CT 06378

(860) 535-2235

District: Stonington School District

Students who attend Deans Mill School usually attend:

Middle:	Stonington Middle School
High:	Stonington High School

Racial breakdown:

White:

87.6%

Hispanic:

6.3%

Two or more races:

5.1%

See top rated Connecticut elementary schools

Compare Deans Mill School to nearby elementary schools!

At a glance

▼ Ranking trend: Declining — 95th percentile in 2015 → 88th in 2025

Strengths

✓Test scores above the Connecticut average (76% vs 50% meeting standards)

✓Ranks in the top 12% of Connecticut elementary schools

✓Small classes — about 11 students per teacher

Worth a look

!Ranking has slipped — down 7 percentile points since 2015

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

Students meeting standards (2024-2025) ?

This school76%

District avg70%

Connecticut avg50%

60^th of 493

Connecticut public elementary schools ?

Top 12%▼ down 7 pts since 2015

From top 5% (2015) to top 12% (2025)

See the entire ranking list of Connecticut Elementary Schools →

★★★★★

SchoolDigger rating ?

1^st of 2Elementary Schools in the Stonington School District

36^th of 156Stonington 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	86.0	60 of 493	87.8%	★★★★☆
2024	88.3	43 of 497	91.3%	★★★★★
2023	90.0	37 of 491	92.5%	★★★★★
2022	89.7	38 of 490	92.2%	★★★★★
2021	89.0	57 of 538	89.4%	★★★★☆
2019	82.4	102 of 522	80.5%	★★★★☆
2018	91.3	26 of 532	95.1%	★★★★★
2017	88.2	43 of 519	91.7%	★★★★★
2016	86.1	60 of 518	88.4%	★★★★☆
2015	90.0	29 of 551	94.7%	★★★★★
2013	75.6	157 of 557	71.8%	★★★★☆
2012	70.9	208 of 564	63.1%	★★★☆☆
2011	72.7	186 of 565	67.1%	★★★☆☆
2010	75.6	155 of 579	73.2%	★★★★☆
2009	76.4	138 of 566	75.6%	★★★★☆
2008	75.5	155 of 565	72.6%	★★★★☆
2007	74.1	170 of 568	70.1%	★★★★☆
2006	71.6	205 of 570	64.0%	★★★☆☆

Female

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2025	85.2	26 of 232	88.8%	★★★★☆
2024	89.3	12 of 237	94.9%	★★★★★
2023	86.7	21 of 230	90.9%	★★★★★
2022	82.5	34 of 234	85.5%	★★★★☆
2021	87.1	50 of 455	89.0%	★★★★☆
2019	79.6	53 of 242	78.1%	★★★★☆
2018	85.2	32 of 259	87.6%	★★★★☆

Male

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2025	75.1	74 of 239	69.0%	★★★☆☆
2024	76.3	66 of 233	71.7%	★★★★☆
2023	80.4	49 of 231	78.8%	★★★★☆
2022	82.6	37 of 232	84.1%	★★★★☆
2021	86.9	54 of 445	87.9%	★★★★☆
2019	81.3	43 of 247	82.6%	★★★★☆
2018	88.6	15 of 262	94.3%	★★★★★

Special Education

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2021	95.7	12 of 371	96.8%	★★★★★

White

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2025	74.0	54 of 248	78.2%	★★★★☆
2024	76.1	52 of 250	79.2%	★★★★☆
2023	80.3	33 of 262	87.4%	★★★★☆
2022	79.2	38 of 252	84.9%	★★★★☆
2021	75.7	74 of 327	77.4%	★★★★☆
2019	66.0	102 of 295	65.4%	★★★☆☆
2018	87.0	17 of 296	94.3%	★★★★★

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)

Special Education (2021)97th percentile+7 vs school

Female (2025)89th percentile~ school

White (2025)78th percentile-10 vs school

Male (2025)69th percentile-19 vs school

By subject vs Connecticut (2024-2025) ?

English Language Arts78%+27 vs state

Mathematics75%+26 vs state

Science74%+21 vs state

★

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Schools Near Deans Mill 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 English Language Arts 6th Grade	SBAC Mathematics 3rd Grade	SBAC Mathematics 4th Grade	SBAC Mathematics 5th Grade	SBAC Mathematics 6th Grade	Total
Deans Mill School	Public	PK, KG-5	35 Deans Mill Rd.	Stonington	06378	Southeastern Connecticut Planning Region	Stonington School District	No	No	No	No	(860) 535-2235	429	39	11.0	12.6%	376 (87.6%)	0 (0.0%)	27 (6.3%)	4 (0.9%)	0 (0.0%)	0 (0.0%)	22 (5.1%)	86	60^th of 493 public elementary schools	87.8%		88.3	43^rd of 497 public elementary schools	91.3%	17	73.7	78.9	70.8	82.9		73.2	79.2	73.7		$22,845
Northeast Academy Magnet School	Public	PK, KG-5	115 Oslo Street	Mystic	06355	Southeastern Connecticut Planning Region	Groton School District	No	No	No	No	(860) 572-5852	392	31	12.5	36.7%	250 (63.8%)	10 (2.6%)	61 (15.6%)	15 (3.8%)	0 (0.0%)	0 (0.0%)	56 (14.3%)	70.4	170^th of 493 public elementary schools	65.5%		75.2	142^nd of 497 public elementary schools	71.4%	28	65.8	58.1	64.7	67.1		59.7	69.1	59.5		$21,137
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
West Vine Street School	Public	PK, KG-5	17 West Vine St.	Pawcatuck	06379	Southeastern Connecticut Planning Region	Stonington School District	No	No	No	Yes	(860) 599-5832	342	36	9.5	40.4%	274 (80.1%)	3 (0.9%)	36 (10.5%)	2 (0.6%)	0 (0.0%)	0 (0.0%)	27 (7.9%)	67.3	185^th of 493 public elementary schools	62.5%		75.4	140^th of 497 public elementary schools	71.8%	45	52.1	55.2	66.1			74.1				$27,186
Gallup Hill School	Public	PK, KG-5	169 Gallup Hill Rd.	Ledyard	06339	Southeastern Connecticut Planning Region	Ledyard School District	No	No	No	Yes	(860) 536-9477	592	53	11.1	30.7%	393 (66.4%)	15 (2.5%)	89 (15.0%)	15 (2.5%)	17 (2.9%)	1 (0.2%)	62 (10.5%)	55	237^th of 493 public elementary schools	51.9%		42.3	276^th of 497 public elementary schools	44.5%	39		44.8	61.3	57.5		52.1	58.8	55.0		$18,724
North Stonington Elementary School	Public	PK, KG-6	311 Norwich/Westerly Rd.	North Stonington	06359	Southeastern Connecticut Planning Region	North Stonington School District	No	No	No	No	(860) 535-2805	379	36	10.4	19.0%	343 (90.5%)	5 (1.3%)	20 (5.3%)	2 (0.5%)	2 (0.5%)	0 (0.0%)	7 (1.8%)	81.1	97^th of 493 public elementary schools	80.3%		85.8	62^nd of 497 public elementary schools	87.5%	35		76.9	63.6	66.0	59.6	88.5	70.5	71.7	72.3	$20,038
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
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
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
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

Frequently Asked Questions about Deans Mill School

What district is Deans Mill School in?

Stonington School District

How many students attend Deans Mill School?

In the 2024-25 school year, 429 students attended Deans Mill School.

Is Deans Mill School a good school?

Deans Mill School ranks 60^th of 493 Connecticut elementary schools. SchoolDigger rates this school 4 stars out of 5.

What schools do graduates of Deans Mill School attend?

Students who attend Deans Mill School usually go on to attend:

Middle : Stonington Middle School
High : Stonington High School

What is the racial makeup of Deans Mill School?

Students at Deans Mill School are 88% White, 6% Hispanic, 5% Two or more races.

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Schools in Stonington, 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.