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Millsboro Middle School

Q: Is Millsboro Middle School a good school?

Millsboro Middle School ranks 33 rd of 59 Delaware middle schools. SchoolDigger rates this school 2 stars out of 5.

Public Grades 6-8

33^rd

SchoolDigger Rank ?

of 59 Delaware Middle Schools

Better than 44% of Delaware middle schools

Summary

Millsboro Middle School is a public middle school serving grades 6-8 in the Indian River School District in Millsboro, Delaware, with a student population of 756. While the school has a 2-star rating from SchoolDigger for the 2024-2025 school year, ranking 33 out of 59 Delaware middle schools, it faces challenges in academic performance, particularly in core subject areas.

Millsboro Middle School's proficiency rates in Smarter Balanced Assessments and DeSSA tests are generally below the state and district averages across all grade levels and subject areas. For example, in the 2024-2025 school year, the school's proficiency rates in English Language Arts ranged from 30.7% to 36.67%, compared to the state average of 38.49% to 43.82%. In Mathematics, the school's proficiency rates ranged from 23.2% to 30.42%, compared to the state average of 26.56% to 29.74%. The school's performance in Science and Social Studies also lags behind the state and district averages. Additionally, Millsboro Middle School has experienced high rates of chronic absenteeism, ranging from 20.4% to 27.1% over the past few years, which is significantly higher than the state average.

Comparing Millsboro Middle School to nearby schools within the Indian River School District, such as Selbyville Middle School and Georgetown Middle School, reveals that these schools have higher academic proficiency rates, lower chronic absenteeism, and better overall rankings from SchoolDigger. However, when compared to schools outside the district, such as Woodbridge Middle School, Delmar Middle School, Seaford Middle School, and Laurel Middle School, Millsboro Middle School's performance is mixed, with some schools performing better and some performing worse.

726

Students ?

13.6

Student/teacher ratio ?

$15,831

Per pupil spending ?

41.9%

Free/discounted lunch ?

302 East State Street
Millsboro, DE 19966-0668

(302) 934-3200

District: Indian River School District

Students who attend Millsboro Middle School usually attend:

High:

Sussex Central High School

Feeder schools for Millsboro Middle School:

Elementary:	East Millsboro Elementary School
	Long Neck Elementary School

Racial breakdown:

White:

46.7%

Hispanic:

28.7%

African American:

15.4%

See top rated Delaware middle schools

Compare Millsboro Middle School to nearby middle schools!

At a glance

▼ Ranking trend: Declining — 65th percentile in 2015 → 44th in 2025

Worth a look

!Ranking has slipped — down 21 percentile points since 2015

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

Students meeting standards (2024-2025) ?

This school32%

District avg40%

Delaware avg36%

33^rd of 59

Delaware public middle schools ?

Bottom 44%▼ down 21 pts since 2015

From top 35% (2015) to bottom 44% (2025)

See the entire ranking list of Delaware Middle Schools →

★★★★★

SchoolDigger rating ?

3^rd of 3Middle Schools in the Indian River School District

10^th of 32Indian River School District among Delaware 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	Delaware percentile	Rating
2025	37.8	33 of 59	44.1%	★★☆☆☆
2024	40.5	29 of 54	46.3%	★★★☆☆
2023	31.3	35 of 53	34.0%	★★☆☆☆
2022	43.4	25 of 51	51.0%	★★★☆☆
2021	43.1	25 of 47	46.8%	★★★☆☆
2019	56.3	22 of 52	57.7%	★★★☆☆
2018	69.8	8 of 35	77.1%	★★★★☆
2017	48.2	19 of 35	45.7%	★★★☆☆
2016	64.6	11 of 35	68.6%	★★★★☆
2015	60.9	17 of 49	65.3%	★★★☆☆
2014	63.4	8 of 17	52.9%	★★★☆☆
2013	60.6	17 of 37	54.1%	★★★☆☆
2012	69.7	12 of 38	68.4%	★★★★☆
2011	79.1	9 of 38	76.3%	★★★★☆

African American

Year	Avg score	Statewide rank	Delaware percentile	Rating
2025	39.8	24 of 49	51.0%	★★★☆☆
2024	36.0	27 of 42	35.7%	★★☆☆☆
2023	36.7	25 of 43	41.9%	★★☆☆☆
2022	61.1	13 of 41	68.3%	★★★★☆
2019	61.8	12 of 44	72.7%	★★★★☆

Female

Year	Avg score	Statewide rank	Delaware percentile	Rating
2025	33.6	36 of 55	34.5%	★★☆☆☆
2024	33.1	32 of 49	34.7%	★★☆☆☆
2023	26.2	37 of 50	26.0%	★☆☆☆☆
2022	35.9	31 of 50	38.0%	★★☆☆☆
2021	39.0	21 of 38	44.7%	★★☆☆☆
2019	57.8	19 of 49	61.2%	★★★☆☆

Hispanic

Year	Avg score	Statewide rank	Delaware percentile	Rating
2025	49.4	19 of 42	54.8%	★★★☆☆
2024	47.4	19 of 37	48.6%	★★★☆☆
2023	31.0	29 of 37	21.6%	★☆☆☆☆
2022	37.8	25 of 37	32.4%	★★☆☆☆
2021	45.9	10 of 18	44.4%	★★★☆☆
2019	63.9	10 of 35	71.4%	★★★★☆

Low Socio Economic Status

Year	Avg score	Statewide rank	Delaware percentile	Rating
2025	46.2	20 of 48	58.3%	★★★☆☆
2024	48.9	18 of 39	53.8%	★★★☆☆
2023	43.5	21 of 40	47.5%	★★☆☆☆
2022	67.8	6 of 38	84.2%	★★★★☆
2021	51.5	9 of 19	52.6%	★★★☆☆
2019	69.6	9 of 41	78.0%	★★★★☆

Male

Year	Avg score	Statewide rank	Delaware percentile	Rating
2025	36.2	33 of 55	40.0%	★★☆☆☆
2024	41.7	25 of 49	49.0%	★★★☆☆
2023	32.8	32 of 50	36.0%	★★☆☆☆
2022	44.2	23 of 50	54.0%	★★★☆☆
2021	41.9	20 of 38	47.4%	★★★☆☆
2019	56.8	21 of 49	57.1%	★★★☆☆

Multi-racial

Year	Avg score	Statewide rank	Delaware percentile	Rating
2025	42.1	9 of 15	40.0%	★★★☆☆
2019	36.0	8 of 8	0.0%	★☆☆☆☆

Special Education

Year	Avg score	Statewide rank	Delaware percentile	Rating
2025	45.0	9 of 22	59.1%	★★★☆☆
2022	53.6	3 of 9	66.7%	★★★★☆
2019	51.9	6 of 9	33.3%	★★☆☆☆

White

Year	Avg score	Statewide rank	Delaware percentile	Rating
2025	25.7	34 of 47	27.7%	★★☆☆☆
2024	32.4	29 of 45	35.6%	★★☆☆☆
2023	23.5	36 of 44	18.2%	★☆☆☆☆
2022	36.2	27 of 45	40.0%	★★☆☆☆
2021	38.2	24 of 41	41.5%	★★☆☆☆
2019	54.0	22 of 43	48.8%	★★★☆☆

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 (2025)59th percentile+15 vs school

Low Socio Economic Status (2025)58th percentile+14 vs school

Hispanic (2025)55th percentile+11 vs school

African American (2025)51st percentile+7 vs school

Multi-racial (2025)40th percentile-4 vs school

Male (2025)40th percentile-4 vs school

Female (2025)35th percentile-10 vs school

White (2025)28th percentile-16 vs school

By subject vs Delaware (2024-2025) ?

Social Studies42%~ state avg

English Language Arts34%-7 vs state

Mathematics26%-3 vs state

Science11%-5 vs state

★

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Schools Near Millsboro Middle School

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

School													Students/Teachers											Ranking (2025)				Ranking (2024)				DeSSA Science (2025)		DeSSA Social Studies (2025)				Smarter Balanced Assessments English Language Arts (2025)				Smarter Balanced Assessments 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	DeSSA Science 5th Grade	DeSSA Science 8th Grade	DeSSA Social Studies 5th Grade	DeSSA Social Studies 6th Grade	DeSSA Social Studies 7th Grade	DeSSA Social Studies 8th Grade	Smarter Balanced Assessments English Language Arts 5th Grade	Smarter Balanced Assessments English Language Arts 6th Grade	Smarter Balanced Assessments English Language Arts 7th Grade	Smarter Balanced Assessments English Language Arts 8th Grade	Smarter Balanced Assessments Mathematics 5th Grade	Smarter Balanced Assessments Mathematics 6th Grade	Smarter Balanced Assessments Mathematics 7th Grade	Smarter Balanced Assessments Mathematics 8th Grade	Total
Millsboro Middle School	Public	6-8	302 East State Street	Millsboro	19966	Sussex County	Indian River School District	No	No	No	Yes	(302) 934-3200	726	53	13.6		339 (46.7%)	112 (15.4%)	208 (28.7%)	7 (1.0%)	0 (0.0%)	0 (0.0%)	60 (8.3%)	37.8	33^rd of 59 public middle schools	44.1%		40.5	29^th of 54 public middle schools	46.3%	4		11.2		37.4	59.9	29.5		30.7	36.7	33.9		25.3	30.4	23.2	$15,831
Georgetown Middle School	Public	6-8	301 West Market Street	Georgetown	19947	Sussex County	Indian River School District	No	No	No	Yes	(302) 856-1900	861	59	14.5		184 (21.4%)	88 (10.2%)	556 (64.6%)	3 (0.3%)	5 (0.6%)	0 (0.0%)	25 (2.9%)	48	25^th of 59 public middle schools	57.6%		47.5	23^rd of 54 public middle schools	57.4%	2		16.8		53.4	50.4	31.2		37.3	40.9	41.2		35.9	27.6	28.3	$20,206
Bryan Allen Stevenson School of Excellence	Public, Charter	6-8	20346 Ennis St	Georgetown	19947	Sussex County	Bryan Allen Stevenson School of Excellence	Yes	(n/a)	No	(n/a)	(302) 556-3297	208	5	41.6		118 (56.7%)	44 (21.2%)	19 (9.1%)	0 (0.0%)	4 (1.9%)	0 (0.0%)	23 (11.1%)								(n/a)
Selbyville Middle School	Public	6-8	80 Bethany Rd.	Selbyville	19975	Sussex County	Indian River School District	No	No	No	Yes	(302) 436-1020	770	53	14.5		447 (58.1%)	75 (9.7%)	198 (25.7%)	11 (1.4%)	1 (0.1%)	1 (0.1%)	37 (4.8%)	77.2	12^th of 59 public middle schools	79.7%		73.4	13^th of 54 public middle schools	75.9%	1		29.7		60.8	69.9	37.7		59.1	56.5	56.3		47.2	42.0	40.9	$19,995
Beacon Middle School	Public	6-8	19483 John J. Williams Highway	Lewes	19958	Sussex County	Cape Henlopen School District	No	No	No	No	(302) 645-6288	427	40	10.6		313 (73.3%)	26 (6.1%)	51 (11.9%)	8 (1.9%)	5 (1.2%)	0 (0.0%)	24 (5.6%)	88.6	8^th of 59 public middle schools	86.4%		92	5^th of 54 public middle schools	90.7%	3		32.6		64.6	66.7	46.0		71.5	71.0	70.9		65.0	52.9	50.0	$26,240
Mariner Middle School	Public	6-8	16391 Harbeson Rd	Milton	19968	Sussex County	Cape Henlopen School District	No	No	No	No	(302) 685-8516	552	47	11.7		302 (54.7%)	61 (11.1%)	151 (27.4%)	4 (0.7%)	0 (0.0%)	1 (0.2%)	33 (6.0%)	57.4	20^th of 59 public middle schools	66.1%		62.2	17^th of 54 public middle schools	68.5%	3		27.7		42.9	57.8	28.5		37.7	46.0	39.8		30.4	43.9	45.8	$21,633
Frederick D Thomas Middle School	Public	6-8	1270 Kings Highway	Lewes	19958	Sussex County	Cape Henlopen School District	No	(n/a)	No	(n/a)	(302) 645-6686	451	27	16.7		304 (67.4%)	31 (6.9%)	66 (14.6%)	12 (2.7%)	0 (0.0%)	1 (0.2%)	37 (8.2%)								(n/a)		39.1		55.2	63.2	45.7		66.9	63.1	71.2		51.8	55.7	52.6	$30,746
Laurel Middle School	Public	7-8	1133 S Central Ave	Laurel	19956	Sussex County	Laurel School District	No	No	No	Yes	(302) 875-6110	373	26	14.6		145 (38.9%)	88 (23.6%)	110 (29.5%)	2 (0.5%)	0 (0.0%)	0 (0.0%)	28 (7.5%)	35.6	36^th of 59 public middle schools	39.0%		22.4	46^th of 54 public middle schools	14.8%	10		9.4			42.9	28.4			45.2	35.9			29.1	21.6	$20,682
Delmar Middle School	Public	5-8	200 North Eighth Street	Delmar	19940	Sussex County	Delmar School District	No	No	No	Yes	(302) 846-9544	732	37	19.7		405 (55.3%)	162 (22.1%)	88 (12.0%)	24 (3.3%)	2 (0.3%)	0 (0.0%)	51 (7.0%)	45.1	27^th of 59 public middle schools	54.2%		37.4	33^rd of 54 public middle schools	38.9%	6	23.5	13.3	48.1	45.0	47.5	40.8	34.8	34.4	37.9	44.2	21.0	24.0	29.0	33.7	$14,430
Seaford Middle School	Public	6-8	500 East Stein Highway	Seaford	19973	Sussex County	Seaford School District	No	No	No	Yes	(302) 629-4587	800	49	16.3		187 (23.4%)	298 (37.3%)	259 (32.4%)	9 (1.1%)	0 (0.0%)	2 (0.3%)	45 (5.6%)	27.2	40^th of 59 public middle schools	32.2%		26.9	42^nd of 54 public middle schools	22.2%	2		10.0		25.8	47.2	22.5		30.2	36.7	36.9		17.0	20.8	18.0	$18,593

Frequently Asked Questions about Millsboro Middle School

What district is Millsboro Middle School in?

Indian River School District

What high school do graduates of Millsboro Middle School attend?

Students who attend Millsboro Middle School usually go on to attend Sussex Central High School

Is Millsboro Middle School a good school?

Millsboro Middle School ranks 33^rd of 59 Delaware middle schools. SchoolDigger rates this school 2 stars out of 5.

How many students attend Millsboro Middle School?

In the 2024-25 school year, 726 students attended Millsboro Middle School.

What is the racial makeup of Millsboro Middle School?

Students at Millsboro Middle School are 47% White, 29% Hispanic, 15% African American, 8% Two or more races.

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DEDelaware Middle School Rankings

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Schools in Millsboro, DE

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SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the Delaware 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.