Haddam-Killingworth High School

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

Haddam-Killingworth High School ranks 18 th of 145 Connecticut high schools. SchoolDigger rates this school 4 stars out of 5.

Summary:

Haddam-Killingworth High School is a public high school located in Higganum, Connecticut, serving grades 9-12 with a student population of 546 as of the 2022-2023 school year. The school is part of the Regional School District 17, which is ranked 36 out of 158 districts in Connecticut and has a 4-star rating.

Haddam-Killingworth High School consistently outperforms the state average in standardized test scores, with 76% of 11th-grade students proficient or better in SAT/English Language Arts, compared to the state average of 54.8%. In SAT/Math, 48.8% of 11th-graders were proficient or better, compared to the state average of 29.5%. The school also excels in NGSS/Science, with 69.6% of 11th-graders proficient or better, compared to the state average of 46.7%. This strong academic performance has earned the school a ranking of 9th out of 142 Connecticut high schools and a 5-star rating from SchoolDigger, placing it in the top 6.3% of high schools in the state.

Haddam-Killingworth High School's exceptional performance extends to specific student subgroups as well, ranking 10th out of 102 Connecticut high schools for female students and 30th out of 116 high schools for white students. Additionally, the school has a relatively low percentage of students receiving free or reduced-price lunch, ranging from 10.11% to 15.12% over the past three school years, suggesting a relatively affluent student population compared to some nearby schools, such as Middletown High School.

Detail:

Public 9-12

95 Little City Road
Higganum, CT 06441

(860) 345-8541

District: Regional School District 17

SchoolDigger Rank:
18^th of 145 Connecticut High Schools

Feeder schools for Haddam-Killingworth High School:

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

Student/teacher ratio: 10.5

Number of students: 546

Racial breakdown:

White:

89.7%

Hispanic:

3.3%

Two or more races:

2.9%

Free/discounted lunch recipients: 11.7%

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Performance Trends

Compare Details Haddam-Killingworth High School ranks better than 87.6% of high schools in Connecticut. (See more...)

Compare Details In 2024 the calculated Average Standard Score was 85.94. (See more...)

The four-year cohort graduation rate measures the percentage of students at Haddam-Killingworth High School who earn a standard high school diploma within four years of starting ninth grade.

Chronic absenteeism in a school refers to a situation where students repeatedly miss school, with the threshold often defined as missing 10% or more of school days for any reason, excused or unexcused.

Student Body

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Teachers

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Finance

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Schooldigger 2024 Rankings:

Haddam-Killingworth High School:

SchoolDigger ranks Haddam-Killingworth High School 18^th of 145 Connecticut public high schools. (See Haddam-Killingworth High School in the ranking list.)

High School Test Score Ratings by Student Subgroup:

Female students:

Male students:

White students:

Regional School District 17:

SchoolDigger ranks Regional School District 17 36^th of 158 Connecticut school districts. (See district ranking list.)

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Rank History for Haddam-Killingworth High School

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Rank History for all students at Haddam-Killingworth High School

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	CT State Percentile
2007	76.91	33^rd	176	81.3%
2008	74.73	47^th	176	73.3%
2009	75.87	47^th	176	73.3%
2010	75.75	40^th	186	78.5%
2011	73.38	67^th	189	64.6%
2012	72.12	68^th	188	63.8%
2013	76.09	46^th	193	76.2%
2015	87.27	19^th	196	90.3%
2016	86.65	20^th	132	84.8%
2019	84.80	22^nd	121	81.8%
2021	85.65	31^st	200	84.5%
2022	70.08	46^th	139	66.9%
2023	92.49	9^th	142	93.7%
2024	85.94	18^th	145	87.6%

See the entire list of Connecticut High School Rankings!

Rank History for Special Education students at Haddam-Killingworth High School

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	CT State Percentile	SchoolDigger Rating
2021	78.71	33^rd	175	81.1%

See the entire list of Best Connecticut High Schools for Special Education Students!

Rank History for Female students at Haddam-Killingworth High School

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	CT State Percentile
2021	83.11	31^st	189	83.6%
2022	77.00	30^th	106	71.7%
2023	90.58	8^th	103	92.2%
2024	89.69	10^th	102	90.2%

See the entire list of Best Connecticut High Schools for Female Students!

Rank History for Male students at Haddam-Killingworth High School

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	CT State Percentile	SchoolDigger Rating
2021	84.52	29^th	182	84.1%
2024	70.18	36^th	100	64.0%

See the entire list of Best Connecticut High Schools for Male Students!

Rank History for White students at Haddam-Killingworth High School

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	CT State Percentile
2018	67.66	40^th	105	61.9%
2019	70.14	39^th	113	65.5%
2021	77.83	30^th	155	80.6%
2022	46.27	68^th	117	41.9%
2023	85.34	13^th	116	88.8%
2024	71.13	30^th	116	74.1%

See the entire list of Best Connecticut High Schools for White Students!

Data source: test scores: Connecticut Department of Education, rankings: SchoolDigger.com

As you review the school rankings data, please be aware that some of the information from certain demographics is missing. The reason for this omission is that the data has been redacted from the source data itself due to low population samples in these specific demographic groups.

Redacting data from low population samples is a necessary step to ensure the reliability and accuracy of the results, as small sample sizes may not be representative of the broader population. Additionally, this measure helps protect the privacy of individuals belonging to these demographic groups.

Data source: Connecticut State Department of Education

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Enrollment information for Haddam-Killingworth High School

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Year	White	African American	Asian	Hispanic	American Indian	Pacific Islander	Two or More Races	Not Specified	Total
1988	602	12	6	3	2	n/a	n/a	0	625
1989	567	6	7	0	4	n/a	n/a	0	584
1990	528	4	4	5	1	n/a	n/a	0	542
1991	513	1	4	0	1	n/a	n/a	0	519
1992	525	4	5	3	0	n/a	n/a	0	537
1993	495	3	6	3	0	n/a	n/a	0	507
1994	479	8	6	5	1	n/a	n/a	0	499
1995	498	4	1	2	4	n/a	n/a	0	509
1996	498	4	1	2	4	n/a	n/a	0	509
1997	505	4	2	5	0	n/a	n/a	0	516
1998	548	3	5	4	4	n/a	n/a	0	564
1999	554	7	7	7	0	n/a	n/a	0	575
2000	585	12	10	3	1	n/a	n/a	0	611
2001	607	10	9	5	4	n/a	n/a	0	635
2002	594	7	6	3	2	n/a	n/a	0	612
2003	594	7	6	3	2	n/a	n/a	0	612
2004	570	4	8	5	1	n/a	n/a	0	588
2005	614	5	9	4	1	n/a	n/a	0	633
2006	503	3	9	6	0	n/a	n/a	0	521
2007	656	3	15	5	0	n/a	n/a	0	679
2008	693	4	12	6	1	n/a	n/a	0	716
2009	694	5	10	6	1	n/a	n/a	0	716
2010	665	8	8	7	1	n/a	n/a	0	689
2011	651	6	10	13	0	0	0	0	680
2012	623	7	9	16	1	0	1	0	657
2013	595	10	15	11	1	0	2	0	634
2014	588	9	15	3	1	0	3	0	619
2015	585	7	12	4	1	0	6	0	615
2016	587	7	17	5	0	0	2	0	618
2017	606	8	14	7	1	0	7	0	643
2018	631	11	12	11	1	0	7	0	673
2019	601	8	14	12	0	0	9	0	644
2020	590	7	11	15	0	0	14	0	637
2021	558	5	14	22	0	0	16	0	615
2022	494	6	14	14	0	0	16	0	544
2023	490	6	14	18	0	0	16	2	546

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Enrollment/Ethnicity

For more information about how the Department of Education defines ethnicity, see Defining Race and Ethnicity Data, National Center for Education Statistics

Students eligible for free or discounted lunch at Haddam-Killingworth High School

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Year	# Students	Full-time Teachers	Student/Teacher ratio	% Free/Discounted Lunch
1988	625	47.0	13.2	n/a
1989	584	43.2	13.5	n/a
1990	542	46.6	11.6	n/a
1991	519	45.2	11.4	n/a
1992	537	50.5	10.6	1.1
1993	507	49.7	10.2	0
1994	499	47.3	10.5	2.4
1995	509	46.7	10.9	4.7
1996	509	46.7	10.9	4.7
1997	516	44.7	11.5	1.9
1998	564	49.6	11.4	1.1
1999	575	50.8	11.3	2.1
2000	611	51.7	11.8	4.6
2001	635	53.8	11.8	n/a
2002	612	54.7	11.2	2.8
2003	612	54.7	11.2	2.8
2004	588	54.7	10.7	1.9
2005	633	46.6	13.6	n/a
2006	521	48.1	10.8	4.4
2007	679	46.8	14.5	6.6
2008	716	54.3	13.2	0.7
2009	716	61.1	12.4	2
2010	689	57.5	11.9	6.8
2011	680	57.0	11.9	7.8
2012	657	57.4	11.4	6.7
2013	634	54.0	11.7	6.9
2014	619	56.0	11.0	8.2
2015	615	55.0	11.1	10.9
2016	618	53.0	11.6	10.8
2017	643	52.3	12.2	9.8
2018	673	57.3	11.7	9.2
2019	644	49.2	13.0	12.7
2020	637	58.8	10.8	12.6
2021	615	54.0	11.3	15.1
2022	544	50.6	10.7	10.1
2023	546	51.7	10.5	11.7

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Students eligible for discounted/free lunch:

The National School Lunch Program (NSLP) provides low-cost or free meals to students in U.S. public and nonprofit private schools based on household income. Those with incomes below 130% of the poverty line receive free lunch, while those between 130% and 185% qualify for reduced-price lunch. The percentage of students receiving free or reduced-price lunch serves as a marker for poverty, as it reflects the socioeconomic status of families in a given school or district. A higher FRPL rate typically indicates a higher concentration of low-income families, suggesting that the school or district may face additional challenges in providing adequate resources and support for student success.

Student/Teacher Ratio Haddam-Killingworth High School

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Year	# Students	Full-time Teachers	Student/Teacher ratio	% Free/Discounted Lunch
1988	625	47.0	13.2	n/a
1989	584	43.2	13.5	n/a
1990	542	46.6	11.6	n/a
1991	519	45.2	11.4	n/a
1992	537	50.5	10.6	1.1
1993	507	49.7	10.2	0
1994	499	47.3	10.5	2.4
1995	509	46.7	10.9	4.7
1996	509	46.7	10.9	4.7
1997	516	44.7	11.5	1.9
1998	564	49.6	11.4	1.1
1999	575	50.8	11.3	2.1
2000	611	51.7	11.8	4.6
2001	635	53.8	11.8	n/a
2002	612	54.7	11.2	2.8
2003	612	54.7	11.2	2.8
2004	588	54.7	10.7	1.9
2005	633	46.6	13.6	n/a
2006	521	48.1	10.8	4.4
2007	679	46.8	14.5	6.6
2008	716	54.3	13.2	0.7
2009	716	61.1	12.4	2
2010	689	57.5	11.9	6.8
2011	680	57.0	11.9	7.8
2012	657	57.4	11.4	6.7
2013	634	54.0	11.7	6.9
2014	619	56.0	11.0	8.2
2015	615	55.0	11.1	10.9
2016	618	53.0	11.6	10.8
2017	643	52.3	12.2	9.8
2018	673	57.3	11.7	9.2
2019	644	49.2	13.0	12.7
2020	637	58.8	10.8	12.6
2021	615	54.0	11.3	15.1
2022	544	50.6	10.7	10.1
2023	546	51.7	10.5	11.7

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Student-Teacher Ratio

Student/teacher ratio is calculated by dividing the total number of students by the total number of full-time equivalent teachers. Please note that a smaller student/teacher ratio does not necessarily translate to smaller class size. In some instances, schools hire teachers part time, and some teachers are hired for specialized instruction with very small class sizes. These and other factors contribute to the student/teacher ratio. Note: For private schools, Student/teacher ratio may not include Pre-Kindergarten.

Finances

Per Pupil Expenditures for Haddam-Killingworth High School

Year	Total Expenditures Per Pupil
2018	$18,850
2019	$19,388
2020	$20,164
2021	$21,250
2022	$24,328
2023	$25,496

Data source: Connecticut Department of Education

Pre and Post Pandemic Data

Impact of COVID-19 on Haddam-Killingworth High School

The coronavirus has had a profound impact on education in America. Learning shifted online overnight, attendance numbers dwindled, and enrollment decreased. SchoolDigger.com is making it easier for you to better assess how COVID-19 has impacted your school. Through the collection of pre-pandemic (2019) and current data, SchoolDigger.com is sharing test scores, enrollment numbers and school demographics from schools across the country – and we make it easy to see how impacted schools compare locally and statewide.

Rankings

Rank Pre-pandemic (2018-2019)	Rank Post pandemic (2022-2023)	Change (%)
Ranks 22^nd of 121 High schools	Ranks 9^th of 142 High schools	11.8%

Test Scores

	% proficient Pre-pandemic (2018-2019)	% proficient Post pandemic (2022-2023)	Change (%)
11th Grade English Language Arts (Haddam-Killingworth High School)	81.6	82.2	0.6%
11th Grade English Language Arts (Regional School District 17)	81.3	82.2	0.9%
11th Grade English Language Arts (Connecticut)	61.6	52.4	9.2%
11th Grade Math (Haddam-Killingworth High School)	57.6	56.6	1%
11th Grade Math (Regional School District 17)	56.9	56.6	0.3%
11th Grade Math (Connecticut)	40.6	34.1	6.5%

Student Body

	Number of students Pre-pandemic (2018-2019)	Number of students Post pandemic (2022-2023)	Change (%)
Total Students	644	546	15.2%
African American	8	6	25%
American Indian	0	0
Asian	14	14
Hispanic	12	18	50%
Pacific Islander	0	0
White	601	490	18.5%
Two or More Races	9	16	77.8%
% Free/Discounted Lunch Recipients	12.7%	11.7%	1%

Schools Near Haddam-Killingworth High School

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

School													Students/Teachers											Ranking (2024)				Ranking (2023)				NGSS Science (2024)	SAT English Language Arts (2024)	SAT Math (2024)	Per Pupil Expenditures (2023)
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 (2024)	Statewide Rank (2024)	State Percentile (2024)	SchoolDigger Rating (2024)	Average Standard Score (2023)	Statewide Rank (2023)	State Percentile (2023)	Rank Change from Previous Year	NGSS Science 11th Grade	SAT English Language Arts 11th Grade	SAT Math 11th Grade	Total
Haddam-Killingworth High School	Public	9-12	95 Little City Road	Higganum	06441	Middlesex County	Regional School District 17	No	No	No	No	(860) 345-8541	546	52	10.5	11.7%	490 (89.7%)	6 (1.1%)	18 (3.3%)	14 (2.6%)	0 (0.0%)	0 (0.0%)	16 (2.9%)	85.9	18^th of 145 public high schools	87.6%		92.5	9^th of 142 public high schools	93.7%	9	69.6	76.0	48.8	$25,496
Coginchaug Regional High School	Public	9-12	135 Pickett Ln.	Durham	06422	Middlesex County	Regional School District 13	No	No	No	Yes	(860) 349-7215	384	41	9.4	15.6%	331 (86.2%)	2 (0.5%)	31 (8.1%)	7 (1.8%)	0 (0.0%)	0 (0.0%)	12 (3.1%)	76.1	36^th of 145 public high schools	75.2%					(n/a)	62.6	68.4		$29,073
Nathan Hale-Ray High School	Public	9-12	15 School Drive	Moodus	06469	Middlesex County	East Haddam School District	No	No	No	Yes	(860) 873-5065	262	34	7.7	22.5%	230 (87.8%)	1 (0.4%)	21 (8.0%)	6 (2.3%)	1 (0.4%)	0 (0.0%)	3 (1.1%)	61.9	57^th of 145 public high schools	60.7%		51.8	67^th of 142 public high schools	52.8%	10		69.2	27.7	$27,667
Whiting Forensic Hospital	Public	9-12	70 O'Brien Drive	Middletown	06457	Middlesex County	Department of Mental Health and Addiction Services	No	(n/a)	No	(n/a)	(860) 262-7175	0	1	.0		0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()								(n/a)
Vinal Technical High School	Public	9-12	60 Daniels St.	Middletown	06457	Middlesex County	Connecticut Technical Education and Career System	No	No	No	No	(860) 344-7100	529	50	10.4	41.4%	349 (66.0%)	32 (6.0%)	107 (20.2%)	5 (0.9%)	0 (0.0%)	0 (0.0%)	30 (5.7%)	8.6	133^rd of 145 public high schools	8.3%		12.5	122^nd of 142 public high schools	14.1%	11	13.0		6.1	$31,996
East Hampton High School	Public	9-12	15 North Maple St.	East Hampton	06424	Middlesex County	East Hampton School District	No	No	No	No	(860) 365-4030	514	41	12.4	18.1%	452 (87.9%)	4 (0.8%)	41 (8.0%)	5 (1.0%)	1 (0.2%)	0 (0.0%)	11 (2.1%)								(n/a)	63.0			$20,412
Portland High School	Public	9-12	95 High Street	Portland	06480	Middlesex County	Portland School District	No	No	No	No	(860) 342-1720	311	31	10.0	23.8%	231 (74.3%)	12 (3.9%)	49 (15.8%)	6 (1.9%)	0 (0.0%)	0 (0.0%)	13 (4.2%)	61.5	58^th of 145 public high schools	60.0%		77.3	37^th of 142 public high schools	73.9%	21		68.4	27.8	$25,285
Valley Regional High School	Public	9-12	256 Kelsey Hill Rd.	Deep River	06417	Middlesex County	Regional School District 04	No	No	No	Yes	(860) 526-5328	489	50	9.8	26.0%	412 (84.3%)	6 (1.2%)	44 (9.0%)	5 (1.0%)	0 (0.0%)	0 (0.0%)	20 (4.1%)	56.9	64^th of 145 public high schools	55.9%		65.7	52^nd of 142 public high schools	63.4%	12	47.1	58.9	32.7	$25,221
Middletown High School	Public	9-12	200 LaRosa Lane	Middletown	06457	Middlesex County	Middletown School District	No	No	No	No	(860) 704-4500	1,214	107	11.3	48.9%	549 (45.2%)	292 (24.1%)	211 (17.4%)	60 (4.9%)	5 (0.4%)	5 (0.4%)	90 (7.4%)	26.7	101^st of 145 public high schools	30.3%		37.3	81^st of 142 public high schools	43.0%	20	29.0	44.9	16.2	$25,207
The Morgan School	Public	9-12	71 Killingworth Tpke.	Clinton	06413	Middlesex County	Clinton School District	No	No	No	No	(860) 664-6504	524	50	10.4	30.0%	394 (75.2%)	5 (1.0%)	94 (17.9%)	23 (4.4%)	1 (0.2%)	0 (0.0%)	6 (1.1%)	66.2	51^st of 145 public high schools	64.8%		65.3	53^rd of 142 public high schools	62.7%	2	55.6	61.6	36.8	$22,974

Frequently Asked Questions about Haddam-Killingworth High School

What district is Haddam-Killingworth High School in?

Regional School District 17

Is Haddam-Killingworth High School a good school?

Haddam-Killingworth High School ranks 18^th of 145 Connecticut high schools. SchoolDigger rates this school 4 stars out of 5.

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

Students at Haddam-Killingworth High School are 90% White, 3% Hispanic, 3% Two or more races, 3% Asian, 1% African American.

How many students attend Haddam-Killingworth High School?

In the 2022-23 school year, 546 students attended Haddam-Killingworth High School.

What schools feed into Haddam-Killingworth High School?

Haddam-Killingworth High School is fed by the following schools:

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

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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.