Lewis S. Mills High School

Q: Is Lewis S. Mills High School a good school?

Lewis S. Mills High School ranks 31 st of 145 Connecticut high schools. SchoolDigger rates this school 4 stars out of 5.

Summary:

Lewis S. Mills High School is a public high school serving 648 students in grades 9-12 in Burlington, Connecticut, which is part of the Regional School District 10. This high-performing school consistently ranks among the top 25-50 high schools in Connecticut, with strong academic metrics and a relatively low student-teacher ratio.

Lewis S. Mills High School stands out for its impressive academic performance, with 11th-grade students outperforming state and regional averages in SAT/English Language Arts, SAT/Math, and NGSS/Science proficiency. In the 2023-2024 school year, 77.9% of 11th-grade students were proficient or better in SAT/English Language Arts, compared to 54.8% statewide. The school's racial diversity has also been increasing, with the percentage of students identifying as two or more races rising from 18.92% in 2020-2021 to 26.08% in 2022-2023. However, the school's racial makeup is still less diverse compared to some nearby schools, such as Bristol Arts and Innovation Magnet School and Bristol Central High School.

While Lewis S. Mills High School outperforms many nearby schools in academic metrics, it is interesting to note the differences in student demographics and school rankings. For example, Farmington High School, located about 6.5 miles away, has a higher percentage of Asian and Hispanic students and is ranked 13th out of 145 Connecticut high schools, higher than Lewis S. Mills. Additionally, Lewis S. Mills High School's spending per student, which was $16,139 in 2018-2019 and $16,338 in 2017-2018, is lower than some of the nearby schools, such as Farmington High School ($18,977 in 2018-2019) and Northwestern Regional High School ($19,103 in 2018-2019).

Detail:

Public 9-12

26 Lyon Rd.
Burlington, CT 06013

(860) 673-0423

District: Regional School District 10

SchoolDigger Rank:
31^st of 145 Connecticut High Schools

Per Pupil Expenditures: $20,101

Feeder schools for Lewis S. Mills High School:

Elementary:	Harwinton Consolidated School
	Lake Garda Elementary School
Middle:	Har-Bur Middle School

Student/teacher ratio: 11.0

Number of students: 648

Racial breakdown:

White:

65.3%

Two or more races:

26.1%

Hispanic:

6.8%

Free/discounted lunch recipients: 11.9%

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Performance Trends

Compare Details Lewis S. Mills High School ranks better than 78.6% of high schools in Connecticut. (See more...)

Compare Details In 2024 the calculated Average Standard Score was 79.36. (See more...)

The four-year cohort graduation rate measures the percentage of students at Lewis S. Mills 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

Compare Details The average total spent per student at Lewis S. Mills High School is $20,101.

Schooldigger 2024 Rankings:

Lewis S. Mills High School:

SchoolDigger ranks Lewis S. Mills High School 31^st of 145 Connecticut public high schools. (See Lewis S. Mills High School in the ranking list.)

High School Test Score Ratings by Student Subgroup:

Multi-racial students:

Male students:

White students:

Regional School District 10:

SchoolDigger ranks Regional School District 10 53^rd of 158 Connecticut school districts. (See district ranking list.)

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Rank History for Lewis S. Mills High School

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Rank History for all students at Lewis S. Mills High School

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	CT State Percentile
2007	77.98	27^th	176	84.7%
2008	78.17	30^th	176	83.0%
2009	81.49	10^th	176	94.3%
2010	77.73	28^th	186	84.9%
2011	78.02	25^th	189	86.8%
2012	79.52	24^th	188	87.2%
2013	76.47	43^rd	193	77.7%
2015	87.72	17^th	196	91.3%
2016	88.83	14^th	132	89.4%
2018	90.12	18^th	121	85.1%
2021	80.60	44^th	200	78.0%
2022	77.60	34^th	139	75.5%
2023	83.22	25^th	142	82.4%
2024	79.36	31^st	145	78.6%

See the entire list of Connecticut High School Rankings!

Rank History for Multi-racial students at Lewis S. Mills High School

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	CT State Percentile	SchoolDigger Rating
2021	61.14	2^nd	3	33.3%
2024	32.28	3^rd	3	0.0%

See the entire list of Best Connecticut High Schools for Multi-racial Students!

Rank History for Special Education students at Lewis S. Mills High School

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	CT State Percentile	SchoolDigger Rating
2021	67.05	56^th	175	68.0%

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

Rank History for Female students at Lewis S. Mills High School

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	CT State Percentile
2018	86.39	14^th	79	82.3%
2019	70.54	36^th	84	57.1%
2021	79.90	39^th	189	79.4%
2023	77.99	30^th	103	70.9%

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

Rank History for Male students at Lewis S. Mills High School

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	CT State Percentile
2018	84.76	19^th	78	75.6%
2019	77.25	30^th	80	62.5%
2021	76.40	45^th	182	75.3%
2023	69.36	35^th	100	65.0%
2024	78.76	26^th	100	74.0%

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

Rank History for White students at Lewis S. Mills High School

Year	Avg Standard Score	Statewide Rank	Total # Ranked High Schools	CT State Percentile
2018	83.15	18^th	105	82.9%
2019	66.62	43^rd	113	61.9%
2021	60.66	60^th	155	61.3%
2022	54.53	57^th	117	51.3%
2023	62.98	43^rd	116	62.9%
2024	72.04	27^th	116	76.7%

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 Lewis S. Mills High School

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Year	White	African American	Asian	Hispanic	American Indian	Pacific Islander	Two or More Races	Not Specified	Total
1988	651	7	2	3	0	n/a	n/a	0	663
1989	616	8	2	4	0	n/a	n/a	0	630
1990	601	7	1	5	n/a	n/a	n/a	0	614
1991	535	5	1	5	0	n/a	n/a	0	546
1992	547	8	0	9	0	n/a	n/a	0	564
1993	563	4	0	10	0	n/a	n/a	0	577
1994	505	5	0	8	0	n/a	n/a	0	518
1995	539	1	1	12	0	n/a	n/a	0	553
1996	539	1	1	12	0	n/a	n/a	0	553
1997	571	2	7	14	0	n/a	n/a	0	594
1998	591	1	4	11	0	n/a	n/a	0	607
1999	619	0	5	4	0	n/a	n/a	0	628
2000	668	0	7	2	0	n/a	n/a	0	677
2001	665	2	5	7	0	n/a	n/a	0	679
2002	682	3	11	4	5	n/a	n/a	0	705
2003	682	3	11	4	5	n/a	n/a	0	705
2004	668	3	12	4	1	n/a	n/a	0	688
2005	679	5	11	7	1	n/a	n/a	0	703
2006	513	5	7	7	0	n/a	n/a	0	532
2007	744	3	14	12	2	n/a	n/a	0	775
2008	744	4	13	15	2	n/a	n/a	0	778
2009	786	5	16	21	2	n/a	n/a	0	830
2010	767	6	16	22	2	n/a	n/a	0	813
2011	764	4	15	35	0	0	4	0	822
2012	764	2	15	35	1	1	4	0	822
2013	745	5	15	32	0	1	3	0	801
2014	740	4	16	31	0	0	5	0	796
2015	723	5	15	29	0	0	5	0	777
2016	719	4	14	36	0	1	4	0	778
2017	713	5	9	28	0	1	4	0	760
2018	716	6	10	24	3	1	2	0	762
2019	700	7	10	31	4	2	3	0	757
2020	598	7	10	38	0	0	65	0	718
2021	524	3	9	34	0	0	133	0	703
2022	462	5	10	39	0	0	151	0	667
2023	423	4	6	44	0	0	169	2	648

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 Lewis S. Mills High School

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Year	# Students	Full-time Teachers	Student/Teacher ratio	% Free/Discounted Lunch
1988	663	52.0	12.7	n/a
1989	630	52.2	12.0	n/a
1990	614	50.6	12.1	n/a
1991	546	49.2	11.0	n/a
1992	564	44.7	12.6	0.5
1993	577	44.6	12.9	0
1994	518	38.3	13.5	2.9
1995	553	37.5	14.7	2.9
1996	553	37.5	14.7	2.9
1997	594	43.1	13.8	2.2
1998	607	46.6	13.0	2.1
1999	628	48.9	12.8	4.3
2000	677	51.8	13.1	4.3
2001	679	52.8	12.9	n/a
2002	705	54.8	12.9	2
2003	705	54.8	12.9	2
2004	688	55.6	12.4	2.2
2005	703	46.7	15.1	n/a
2006	532	48.7	10.9	3.2
2007	775	50.9	15.2	3.2
2008	778	57.2	13.6	2.3
2009	830	60.8	14.7	4.3
2010	813	56.5	14.3	3.6
2011	822	59.4	13.8	3.6
2012	822	59.4	13.8	4.4
2013	801	60.9	13.1	5.9
2014	796	59.7	13.3	7
2015	777	57.0	13.6	8.8
2016	778	60.0	12.9	6.2
2017	760	58.8	12.9	5.7
2018	762	62.1	12.2	6.4
2019	757	53.5	14.1	10.8
2020	718	58.2	12.3	11.1
2021	703	54.7	12.8	12.4
2022	667	55.2	12.0	12.6
2023	648	58.7	11.0	11.9

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 Lewis S. Mills High School

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Year	# Students	Full-time Teachers	Student/Teacher ratio	% Free/Discounted Lunch
1988	663	52.0	12.7	n/a
1989	630	52.2	12.0	n/a
1990	614	50.6	12.1	n/a
1991	546	49.2	11.0	n/a
1992	564	44.7	12.6	0.5
1993	577	44.6	12.9	0
1994	518	38.3	13.5	2.9
1995	553	37.5	14.7	2.9
1996	553	37.5	14.7	2.9
1997	594	43.1	13.8	2.2
1998	607	46.6	13.0	2.1
1999	628	48.9	12.8	4.3
2000	677	51.8	13.1	4.3
2001	679	52.8	12.9	n/a
2002	705	54.8	12.9	2
2003	705	54.8	12.9	2
2004	688	55.6	12.4	2.2
2005	703	46.7	15.1	n/a
2006	532	48.7	10.9	3.2
2007	775	50.9	15.2	3.2
2008	778	57.2	13.6	2.3
2009	830	60.8	14.7	4.3
2010	813	56.5	14.3	3.6
2011	822	59.4	13.8	3.6
2012	822	59.4	13.8	4.4
2013	801	60.9	13.1	5.9
2014	796	59.7	13.3	7
2015	777	57.0	13.6	8.8
2016	778	60.0	12.9	6.2
2017	760	58.8	12.9	5.7
2018	762	62.1	12.2	6.4
2019	757	53.5	14.1	10.8
2020	718	58.2	12.3	11.1
2021	703	54.7	12.8	12.4
2022	667	55.2	12.0	12.6
2023	648	58.7	11.0	11.9

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 Lewis S. Mills High School

Year	Total Expenditures Per Pupil
2018	$16,338
2019	$16,139
2020	$16,945
2021	$17,925
2022	$19,483
2023	$20,101

Data source: Connecticut Department of Education

Pre and Post Pandemic Data

Impact of COVID-19 on Lewis S. Mills 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.

Student Body

	Number of students Pre-pandemic (2018-2019)	Number of students Post pandemic (2022-2023)	Change (%)
Total Students	757	648	14.4%
African American	7	4	42.9%
American Indian	4	0	100%
Asian	10	6	40%
Hispanic	31	44	41.9%
Pacific Islander	2	0	100%
White	700	423	39.6%
Two or More Races	3	169	5533.3%
% Free/Discounted Lunch Recipients	10.8%	11.9%	1.1%

Schools Near Lewis S. Mills 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)	SBAC English Language Arts (2024)			SBAC Mathematics (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	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	SBAC Mathematics 8th Grade	Total
Lewis S. Mills High School	Public	9-12	26 Lyon Rd.	Burlington	06013	Hartford County	Regional School District 10	No	No	No	No	(860) 673-0423	648	59	11.0	11.9%	423 (65.3%)	4 (0.6%)	44 (6.8%)	6 (0.9%)	0 (0.0%)	0 (0.0%)	169 (26.1%)	79.4	31^st of 145 public high schools	78.6%		83.2	25^th of 142 public high schools	82.4%	6	67.5	77.9	36.8							$20,101
Canton High School	Public	9-12	76 Simonds Avenue	Canton	06019	Hartford County	Canton School District	No	No	No	No	(860) 693-7707	464	40	11.5	13.4%	360 (77.6%)	38 (8.2%)	41 (8.8%)	11 (2.4%)	0 (0.0%)	0 (0.0%)	12 (2.6%)	91.1	10^th of 145 public high schools	93.1%		90.1	13^th of 142 public high schools	90.8%	3	83.7	81.4	49.0							$22,296
Avon High School	Public	9-12	510 West Avon Rd.	Avon	06001	Hartford County	Avon School District	No	No	No	Yes	(860) 404-4740	923	86	10.7	11.2%	567 (61.4%)	55 (6.0%)	79 (8.6%)	182 (19.7%)	0 (0.0%)	0 (0.0%)	38 (4.1%)	86.2	17^th of 145 public high schools	88.3%		94.7	5^th of 142 public high schools	96.5%	12	57.6	85.0	59.9							$23,474
Farmington High School	Public	9-12	10 Monteith Dr	Farmington	06032	Hartford County	Farmington School District	No	No	No	No	(860) 673-2514	1,263	115	11.0	15.8%	684 (54.2%)	57 (4.5%)	126 (10.0%)	324 (25.7%)	2 (0.2%)	2 (0.2%)	59 (4.7%)	89.9	13^th of 145 public high schools	91.0%					(n/a)	73.7	78.3	54.7							$21,818
Oliver Wolcott Technical High School	Public	9-12	75 Oliver St.	Torrington	06790	Litchfield County	Connecticut Technical Education and Career System	No	No	No	No	(860) 496-5300	618	52	11.9	36.7%	464 (75.1%)	4 (0.6%)	106 (17.2%)	1 (0.2%)	2 (0.3%)	0 (0.0%)	36 (5.8%)	23.9	109^th of 145 public high schools	24.8%					(n/a)	36.3		9.6							$28,544
Torrington High School	Public	9-12	50 Major Besse Dr.	Torrington	06790	Litchfield County	Torrington School District	No	No	No	No	(860) 489-2294	1,010	88	11.5	56.9%	450 (44.6%)	71 (7.0%)	390 (38.6%)	53 (5.2%)	4 (0.4%)	4 (0.4%)	33 (3.3%)	27.2	99^th of 145 public high schools	31.7%		27.5	97^th of 142 public high schools	31.7%	2	27.2	44.1	19.1							$21,171
Terryville High School	Public	9-12	33 North Harwinton Avenue	Terryville	06786	Litchfield County	Plymouth School District	No	No	No	No	(860) 314-2777	367	35	10.3	42.8%	289 (78.7%)	6 (1.6%)	43 (11.7%)	13 (3.5%)	2 (0.5%)	0 (0.0%)	14 (3.8%)								(n/a)			16.7							$24,299
Bristol Eastern High School	Public	9-12	632 King St.	Bristol	06010	Hartford County	Bristol School District	No	No	No	No	(860) 584-7876	1,113	100	11.1	46.1%	584 (52.5%)	94 (8.4%)	321 (28.8%)	60 (5.4%)	4 (0.4%)	0 (0.0%)	48 (4.3%)	44.9	75^th of 145 public high schools	48.3%					(n/a)	54.5	46.7	20.7							$19,755
Bristol Arts and Innovation Magnet School	Public	6-12	70 Memorial Boulevard	Bristol	06111	Hartford County	Bristol School District	No	(n/a)	No	(n/a)	(860) 584-7007	256	25	10.1	54.7%	102 (39.8%)	26 (10.2%)	92 (35.9%)	13 (5.1%)	1 (0.4%)	0 (0.0%)	21 (8.2%)								(n/a)				38.2	57.5	50.6	33.3	37.2	39.8	$18,227
Bristol Central High School	Public	9-12	480 Wolcott St.	Bristol	06010	Hartford County	Bristol School District	No	No	No	No	(860) 584-7735	1,246	93	13.3	51.8%	591 (47.4%)	86 (6.9%)	478 (38.4%)	27 (2.2%)	0 (0.0%)	0 (0.0%)	60 (4.8%)	39.1	79^th of 145 public high schools	45.5%		35.4	86^th of 142 public high schools	39.4%	7	54.7	42.1	16.2							$19,181

Frequently Asked Questions about Lewis S. Mills High School

Is Lewis S. Mills High School a good school?

Lewis S. Mills High School ranks 31^st of 145 Connecticut high schools. SchoolDigger rates this school 4 stars out of 5.

What is the racial makeup of Lewis S. Mills High School?

Students at Lewis S. Mills High School are 65% White, 26% Two or more races, 7% Hispanic.

What district is Lewis S. Mills High School in?

Regional School District 10

What schools feed into Lewis S. Mills High School?

Lewis S. Mills High School is fed by the following schools:

Elementary : Harwinton Consolidated School
Elementary : Lake Garda Elementary School
Middle : Har-Bur Middle School

How many students attend Lewis S. Mills High School?

In the 2022-23 school year, 648 students attended Lewis S. Mills High 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.