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Haddam-Killingworth Middle School

Q: Is Haddam-Killingworth Middle School a good school?

Haddam-Killingworth Middle School ranks 72 nd of 258 Connecticut middle schools. SchoolDigger rates this school 4 stars out of 5.

Public Grades 6-8

72^nd

SchoolDigger Rank ?

of 258 Connecticut Middle Schools

Better than 72% of Connecticut middle schools

Summary

Haddam-Killingworth Middle School serves 423 students in grades 6 through 8 in Killingworth, CT, as part of Regional School District 17. The school currently ranks 72nd out of 258 Connecticut middle schools with a 4-star rating, and students outperform state averages across English language arts, math, and science. For example, 8th grade ELA proficiency is 67.2% versus a 51.1% state average, and 8th grade science proficiency is 57.8% versus 50.9%. However, its state ranking has slipped recently, from 33rd in 2024–2025 to 72nd in 2025–2026, reflecting a broad dip in test scores.

Compared with nearby schools, Haddam-Killingworth is a solid mid-to-upper-tier option. It substantially outperforms Beman Middle School in Middletown, where proficiency rates are roughly half in nearly every subject. But it trails several shoreline neighbors, most notably Walter C. Polson Middle School in Madison, which ranks 8th in the state and posts 8th grade math proficiency of 81.3% versus Haddam-Killingworth Middle School's 52.3%. Interestingly, Westbrook Middle School serves a student population with higher economic need, yet it also outperforms Haddam-Killingworth in 8th grade math (85.2% vs. 52.3%) and 8th grade ELA (74.1% vs. 67.2%).

The school's chronic absenteeism rate of 11.1% is higher than the district average of 7.7% and higher than most nearby middle schools; only Nathan Hale-Ray Middle School and Beman Middle School have higher rates in the region. Free and reduced-price lunch participation has risen from 10.89% to 15.6% over the past year, and 8th grade math and science scores dropped notably year over year. Haddam-Killingworth achieves respectable results with a student-teacher ratio of 11.2 and per-student spending of $17,295 — lower than nearly every neighboring school — but these emerging trends are worth watching in future years.

423

Students ?

11.2

Student/teacher ratio ?

$27,462

Per pupil spending ?

15.6%

Free/discounted lunch ?

451 Route 81
Killingworth, CT 06419

(860) 663-1241

District: Regional School District 17

Students who attend Haddam-Killingworth Middle School usually attend:

High:

Haddam-Killingworth High School

Feeder schools for Haddam-Killingworth Middle School:

Elementary:	Burr District Elementary School
	Haddam-Killingworth Intermediate School
	Killingworth Elementary School

Racial breakdown:

White:

88.9%

Hispanic:

5.0%

Two or more races:

3.3%

See top rated Connecticut middle schools

Compare Haddam-Killingworth Middle School to nearby middle schools!

At a glance

▼ Ranking trend: Declining — 82nd percentile in 2016 → 72nd in 2026

Strengths

✓Test scores above the Connecticut average (60% vs 48% meeting standards)

✓Above the Connecticut median (72nd percentile)

✓Small classes — about 11 students per teacher

Worth a look

!Ranking has slipped — down 10 percentile points since 2016

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

Students meeting standards (2025-2026) ?

This school60%

District avg60%

Connecticut avg48%

72^nd of 258

Connecticut public middle schools ?

Top 28%▼ down 10 pts since 2016

From top 18% (2016) to top 28% (2026)

See the entire ranking list of Connecticut Middle Schools →

★★★★★

SchoolDigger rating ?

44^th of 153Regional School District 17 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
2026	73.2	72 of 258	72.1%	★★★★☆
2025	84.6	33 of 252	86.9%	★★★★☆
2024	79.0	54 of 250	78.4%	★★★★☆
2023	81.4	46 of 249	81.5%	★★★★☆
2022	78.5	54 of 250	78.4%	★★★★☆
2021	83.2	49 of 275	82.2%	★★★★☆
2019	72.3	82 of 259	68.3%	★★★☆☆
2018	77.9	61 of 249	75.5%	★★★★☆
2017	79.1	55 of 250	78.0%	★★★★☆
2016	79.8	45 of 246	81.7%	★★★★☆
2015	79.1	66 of 280	76.4%	★★★★☆
2013	81.8	9 of 278	96.8%	★★★★★
2012	79.6	37 of 272	86.4%	★★★★☆
2011	81.1	26 of 269	90.3%	★★★★★
2010	80.2	37 of 268	86.2%	★★★★☆
2009	76.3	59 of 255	76.9%	★★★★☆
2008	74.8	69 of 252	72.6%	★★★★☆
2007	73.7	70 of 250	72.0%	★★★★☆
2006	69.5	85 of 248	65.7%	★★★☆☆

Disabled

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2021	58.7	37 of 104	64.4%	★★★☆☆

Female

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2026	65.9	61 of 164	62.8%	★★★☆☆
2025	76.8	37 of 164	77.4%	★★★★☆
2024	68.1	57 of 161	64.6%	★★★☆☆
2023	76.6	38 of 160	76.3%	★★★★☆
2022	79.5	34 of 166	79.5%	★★★★☆
2021	85.3	26 of 235	88.9%	★★★★☆
2019	71.1	55 of 169	67.5%	★★★☆☆
2018	75.2	41 of 160	74.4%	★★★★☆

Male

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2026	61.5	69 of 164	57.9%	★★★☆☆
2025	80.4	30 of 162	81.5%	★★★★☆
2024	76.8	29 of 157	81.5%	★★★★☆
2023	76.7	36 of 158	77.2%	★★★★☆
2022	77.1	38 of 169	77.5%	★★★★☆
2021	76.4	55 of 224	75.4%	★★★★☆
2019	58.8	80 of 167	52.1%	★★★☆☆
2018	65.2	65 of 164	60.4%	★★★☆☆

Special Education

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2021	62.5	80 of 244	67.2%	★★★☆☆

White

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2026	42.0	89 of 150	40.7%	★★☆☆☆
2025	63.1	59 of 153	61.4%	★★★☆☆
2024	55.2	75 of 154	51.3%	★★★☆☆
2023	63.1	54 of 158	65.8%	★★★☆☆
2022	61.6	56 of 151	62.9%	★★★☆☆
2021	64.3	59 of 175	66.3%	★★★☆☆
2019	48.7	89 of 166	46.4%	★★☆☆☆
2018	59.0	73 of 168	56.5%	★★★☆☆

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)67th percentile-15 vs school

Disabled (2021)64th percentile-18 vs school

Female (2026)63rd percentile-9 vs school

Male (2026)58th percentile-14 vs school

White (2026)41st percentile-31 vs school

By subject vs Connecticut (2025-2026) ?

English Language Arts63%+12 vs state

Mathematics58%+14 vs state

Science58%+7 vs state

★

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Schools Near Haddam-Killingworth Middle School

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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 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 4th Grade	SBAC Mathematics 5th Grade	SBAC Mathematics 6th Grade	SBAC Mathematics 7th Grade	SBAC Mathematics 8th Grade	Total
Haddam-Killingworth Middle School	Public	6-8	451 Route 81	Killingworth	06419	Lower Connecticut River Valley Planning Region	Regional School District 17	No	No	No	Yes	(860) 663-1241	423	38	11.2	15.6%	376 (88.9%)	7 (1.7%)	21 (5.0%)	5 (1.2%)	0 (0.0%)	0 (0.0%)	14 (3.3%)	73.2	72^nd of 258 public middle schools	72.1%		84.6	33^rd of 252 public middle schools	86.9%	39		57.8			61.7	60.8	67.2			65.2	55.4	52.3	$27,462
John Winthrop Middle School	Public	7-8	1 Winthrop Road	Deep River	06417	Lower Connecticut River Valley Planning Region	Regional School District 04	No	No	No	Yes	(860) 526-9546	197	19	10.5	25.9%	171 (86.8%)	1 (0.5%)	15 (7.6%)	1 (0.5%)	1 (0.5%)	0 (0.0%)	8 (4.1%)	61.3	99^th of 258 public middle schools	61.6%		75.5	61^st of 252 public middle schools	75.8%	38		54.0				51.1	61.6				48.9	47.7	$34,408
Jared Eliot School	Public	5-8	69 Fairy Dell Rd.	Clinton	06413	Lower Connecticut River Valley Planning Region	Clinton School District	No	No	No	Yes	(860) 664-6503	418	42	9.8	47.6%	274 (65.6%)	3 (0.7%)	125 (29.9%)	9 (2.2%)	0 (0.0%)	0 (0.0%)	6 (1.4%)	57.5	109^th of 258 public middle schools	57.8%		63.4	92^nd of 252 public middle schools	63.5%	17	63.7	51.8		51.5	51.7	55.7	42.9		41.6	47.8	54.7	50.9	$27,415
Walter C. Polson Middle School	Public	6-8	302 Green Hill Rd.	Madison	06443	South Central Connecticut Planning Region	Madison School District	No	No	No	No	(203) 245-6480	541	55	9.8	6.5%	431 (79.7%)	5 (0.9%)	51 (9.4%)	24 (4.4%)	0 (0.0%)	0 (0.0%)	29 (5.4%)	94.3	8^th of 258 public middle schools	96.9%		95.9	3^rd of 252 public middle schools	98.8%	5		84.6			81.1	82.2	79.1			77.3	84.9	81.3	$25,769
Westbrook Middle School	Public	6-8	154 McVeagh Rd.	Westbrook	06498	Lower Connecticut River Valley Planning Region	Westbrook School District	No	No	No	No	(860) 399-2010	126	20	6.2	42.1%	89 (70.6%)	1 (0.8%)	31 (24.6%)	1 (0.8%)	0 (0.0%)	0 (0.0%)	4 (3.2%)	90.4	17^th of 258 public middle schools	93.4%		77.7	56^th of 252 public middle schools	77.8%	39		812.0			72.2	75.7	74.1			77.8	2626.0	85.2	$42,489
A. Baldwin Middle School	Public	5-6	68 Bullard Dr.	Guilford	06437	South Central Connecticut Planning Region	Guilford School District	No	No	No	No	(203) 457-0222	463	42	11.1	14.7%	360 (77.8%)	3 (0.6%)	52 (11.2%)	24 (5.2%)	0 (0.0%)	0 (0.0%)	24 (5.2%)								(n/a)	73.6			76.2	74.2				63.2	72.9			$23,173
Frank Ward Strong School	Public	5-8	191 Main Street	Durham	06422	Lower Connecticut River Valley Planning Region	Regional School District 13	No	No	No	Yes	(860) 349-7222	319	31	10.4	17.2%	275 (86.2%)	1 (0.3%)	26 (8.2%)	3 (0.9%)	2 (0.6%)	0 (0.0%)	12 (3.8%)	68.5	84^th of 258 public middle schools	67.4%		73.4	70^th of 252 public middle schools	72.2%	14	67.0	802.0		66.7	67.0	72.4	54.0		35.4	47.0	56.7	44.8	$26,964
E. C. Adams Middle School	Public	7-8	233 Church St.	Guilford	06437	South Central Connecticut Planning Region	Guilford School District	No	No	No	No	(203) 453-2755	478	46	10.3	14.4%	399 (83.5%)	4 (0.8%)	40 (8.4%)	17 (3.6%)	0 (0.0%)	1 (0.2%)	16 (3.3%)	88.3	26^th of 258 public middle schools	89.9%		90.9	15^th of 252 public middle schools	94.0%	11		73.9				71.4	74.2				71.3	72.1	$22,909
Nathan Hale-Ray Middle School	Public	4-8	73 Clark Gates Rd.	Moodus	06469	Lower Connecticut River Valley Planning Region	East Haddam School District	No	No	No	Yes	(860) 873-5081	346	38	9.1	24.9%	307 (88.7%)	4 (1.2%)	23 (6.6%)	1 (0.3%)	0 (0.0%)	0 (0.0%)	11 (3.2%)	55.5	116^th of 258 public middle schools	55.0%		51.4	119^th of 252 public middle schools	52.8%	3	490.0	50.0	78.3	43.2	60.0	53.7	45.0	2504.0	35.1	55.0	41.8	45.0	$24,433
Beman Middle School	Public	6-8	1 Wilderman's Way	Middletown	06457	Lower Connecticut River Valley Planning Region	Middletown School District	No	No	No	No	(860) 347-8594	977	83	11.8	50.1%	371 (38.0%)	188 (19.2%)	266 (27.2%)	47 (4.8%)	2 (0.2%)	2 (0.2%)	101 (10.3%)	22.2	185^th of 258 public middle schools	28.3%		25	171^st of 252 public middle schools	32.1%	14		40.4			31.6	34.0	32.4			21.1	26.1	20.4	$23,394

Frequently Asked Questions about Haddam-Killingworth Middle School

What district is Haddam-Killingworth Middle School in?

Regional School District 17

What high school do graduates of Haddam-Killingworth Middle School attend?

Students who attend Haddam-Killingworth Middle School usually go on to attend Haddam-Killingworth High School

How many students attend Haddam-Killingworth Middle School?

In the 2024-25 school year, 423 students attended Haddam-Killingworth Middle School.

Is Haddam-Killingworth Middle School a good school?

Haddam-Killingworth Middle School ranks 72^nd of 258 Connecticut middle schools. SchoolDigger rates this school 4 stars out of 5.

What is the racial makeup of Haddam-Killingworth Middle School?

Students at Haddam-Killingworth Middle School are 89% White, 5% Hispanic, 3% Two or more races, 2% African American, 1% Asian.

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Schools in Killingworth, CT

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Latest Connecticut data All new data »

2024–25 through 2025–26 attendance data & graduation ratesAug 31, 2026

2025–26 NGSS, SAT & SBAC test scoresAug 31, 2026

2024–25 school spending dataApr 2, 2026

2024–25 attendance dataNov 6, 2025

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.