Delcastle Technical High School (Ranked Bottom 50% for 2025-26)

1417 Newport Road
Wilmington, DE 19804

Bottom 50%

delcastle.nccvt.k12.de.us

Delcastle Technical High School is a public vocational-technical high school in unincorporated New Castle County, Delaware, near Wilmington, and is the largest of four high schools within the New Castle ...

Serving 1,598 students in grades 9-12, Delcastle Technical High School ranks in the bottom 50% of all schools in Delaware for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).

The percentage of students achieving is 10% (which is lower than the Delaware state average of 31%). The percentage of students achieving is 36% (which is lower than the Delaware state average of 42%).

The student-teacher ratio of 13:1 is lower than the Delaware state level of 14:1.

Minority enrollment is 78% of the student body (majority Hispanic), which is higher than the Delaware state average of 61% (majority Black and Hispanic).

Quick Facts (2025-26)

School Type: Vocational school
Grades: 9-12
Enrollment: 1,598 students
Student-Teacher Ratio: 13:1
Minority Enrollment: 78%
: 95% (Top 50% in DE)
: Bottom 50%
: 10% (Btm 50%)
: 36% (Btm 50%)
: 17% (Btm 50%)
Source: National Center for Education Statistics (NCES), DE Dept. of Education

Top Rankings

Delcastle Technical High School ranks among the top 20% of public schools in Delaware for:

School Overview

Delcastle Technical High School's student population of 1,598 students has stayed relatively flat over five school years.

The teacher population of 123 teachers has stayed relatively flat over five school years.

School Type

Vocational school

Grades Offered

Grades 9-12
(No virtual instruction)

View Data

Distribution of Students By Grade Trends
Grade	Delcastle Technical High School
9	433
10	403
11	387
12	375

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Total Students

1,598 students

View Data

Total Students Trends Over Years (1987-2023)
Year	Delcastle Technical High School
2023	1,585
2022	1,589
2021	1,576
2020	1,558
2019	1,558
2018	1,593
2017	1,593
2016	1,604
2015	1,588
2014	1,519
2013	1,481
2012	1,456
2011	1,513
2010	1,483
2009	1,495
2008	1,500
2007	1,525
2006	1,520
2005	1,501
2004	1,466
2003	1,467
2002	1,440
2001	1,422
2000	1,467
1999	1,456
1998	1,435
1997	1,472
1996	1,401
1995	1,452
1994	1,448
1993	1,418
1992	1,565
1991	1,511
1990	1,540
1989	1,572
1988	1,664
1987	1,818

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Gender %

Total Classroom Teachers

123 teachers

View Data

Total Classroom Teachers Trends Over Years (1987-2023)
Year	Delcastle Technical High School
2023	128
2022	126
2021	127
2020	125
2019	125
2018	126
2017	126
2016	125
2015	122
2014	120
2013	116
2012	117
2011	115
2010	118
2009	118
2008	118
2007	119
2006	121
2005	117
2004	117
2003	116
2002	113
2001	114
2000	115
1999	114
1998	121
1997	119
1996	119
1995	114
1994	110
1993	107
1992	110
1991	116
1990	119
1989	119
1988	119
1987	125

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Year Founded

1969

Colors

White, Navy Blue

Last Day of School

Thu. May 28, 2026

School Mascot

Cougars

School Rankings

Delcastle Technical High School ranks within the bottom 50% of all 199 schools in Delaware (based off of combined math and reading proficiency testing data).

The of Delcastle Technical High School is 0.69, which is less than the diversity score at state average of 0.71. The school's diversity has stayed relatively flat over five school years.

This School

State Level (DE)

#156 out of 199 schools
(Bottom 50%)

View Data

Overall School Rank Trends Over Years (2012-2023)
Year	Delcastle Technical High School
2023	#156
2022	#145
2021	#136
2019	#166
2018	#162
2017	#171
2016	#168
2015	#126
2014	#88
2013	#109
2012	#88

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10%

31%

View Data

Math Proficiency Comparison Over Years (2012-2023)
Year	Delcastle Technical High School	Delaware	New Castle County Vocational-Technical School District
2023	10%	31%	11%
2022	13%	29%	12%
2021	12%	27%	15%
2019	12%	42%	16%
2018	15%	43%	15%
2017	15%	44%	17%
2016	19%	43%	20%
2015	20%	39%	16%
2014	72%	70%	78%
2013	70%	70%	79%
2012	79%	73%	83%

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36%

42%

View Data

Reading and Language Arts Proficiency Comparison Over Years (2011-2022)
Year	Delcastle Technical High School	Delaware	New Castle County Vocational-Technical School District
2022	36%	42%	34%
2021	32%	42%	35%
2019	33%	53%	34%
2018	40%	54%	15%
2017	39%	54%	44%
2016	38%	55%	40%
2015	56%	52%	52%
2014	74%	73%	80%
2013	69%	73%	79%
2012	73%	74%	78%
2011	63%	62%	67%

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17%

21%

View Data

Science Proficiency Comparison Over Years (2021-2022)
Year	Delcastle Technical High School	Delaware	New Castle County Vocational-Technical School District
2022	17%	21%	16%
2021	27%	24%	38%

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Student-Teacher Ratio

13:1

14:1

View Data

Student-Teacher Ratio Comparison Over Years (1987-2023)
Year	Delcastle Technical High School	Delaware	New Castle County Vocational-Technical School District
2023	12:1	14:1	13:1
2022	13:1	14:1	14:1
2021	12:1	14:1	14:1
2020	12:1	15:1	14:1
2019	12:1	15:1	14:1
2018	13:1	15:1	14:1
2017	13:1	15:1	14:1
2016	13:1	15:1	14:1
2015	13:1	14:1	13:1
2014	13:1	15:1	13:1
2013	13:1	15:1	13:1
2012	12:1	15:1	14:1
2011	13:1	15:1	14:1
2010	13:1	15:1	13:1
2009	13:1	15:1	14:1
2008	13:1	15:1	14:1
2007	13:1	16:1	14:1
2006	13:1	16:1	12:1
2005	13:1	16:1	13:1
2004	13:1	16:1	13:1
2003	13:1	16:1	13:1
2002	13:1	16:1	13:1
2001	12:1	16:1	13:1
2000	13:1	16:1	13:1
1999	13:1	17:1	14:1
1998	12:1	17:1	14:1
1997	12:1	17:1	13:1
1996	12:1	17:1	14:1
1995	13:1	17:1	14:1
1994	13:1	17:1	14:1
1993	13:1	17:1	14:1
1992	14:1	18:1	14:1
1991	13:1	18:1	14:1
1990	13:1	18:1	14:1
1989	13:1	18:1	14:1
1988	14:1	17:1	13:1
1987	15:1	17:1	16:1

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American Indian

n/a

Asian

View Data

Asian Student Percentage Comparison Over Years (1998-2023)
Year	Delcastle Technical High School	Delaware	New Castle County Vocational-Technical School District
2023	1%	4%	2%
2022	1%	4%	2%
2021	1%	4%	2%
2020	1%	4%	1%
2019	1%	4%	1%
2018	1%	5%	1%
2017	1%	5%	1%
2015	1%	4%	1%
2014	1%	4%	2%
2013	1%	4%	1%
2012	1%	3%	1%
2011	1%	4%	1%
2010	1%	4%	1%
2009	1%	4%	1%
2008	1%	4%	1%
2007	1%	3%	2%
2006	1%	3%
2005	2%	3%	1%
1998	1%	2%	1%

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Hispanic

43%

20%

View Data

Hispanic Student Percentage Comparison Over Years (1991-2023)
Year	Delcastle Technical High School	Delaware	New Castle County Vocational-Technical School District
2023	43%	19%	27%
2022	44%	19%	27%
2021	45%	18%	28%
2020	40%	18%	25%
2019	40%	18%	25%
2018	35%	17%	21%
2017	35%	17%	21%
2016	32%	16%	19%
2015	28%	15%	17%
2014	26%	15%	15%
2013	24%	14%	14%
2012	22%	13%	12%
2011	20%	13%	12%
2010	18%	11%	11%
2009	16%	11%	11%
2008	14%	10%	10%
2007	10%	10%	8%
2006	8%	9%	5%
2005	6%	9%	6%
2004	6%	8%	5%
2003	6%	7%	5%
2002	6%	7%	5%
2001	5%	6%	4%
2000	5%	5%	5%
1999	5%	5%	4%
1998	4%	5%	4%
1997	6%	4%	5%
1996	6%	4%	5%
1995	5%	4%	5%
1994	5%	3%	6%
1993	5%	3%	5%
1992	5%	3%	5%
1991	5%	3%	4%

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Black

29%

31%

View Data

Black Student Percentage Comparison Over Years (1991-2023)
Year	Delcastle Technical High School	Delaware	New Castle County Vocational-Technical School District
2023	28%	31%	39%
2022	27%	30%	39%
2021	26%	30%	39%
2020	31%	30%	41%
2019	31%	30%	41%
2018	35%	30%	43%
2017	35%	30%	43%
2016	37%	31%	43%
2015	38%	31%	43%
2014	36%	31%	41%
2013	37%	31%	42%
2012	36%	32%	42%
2011	35%	32%	41%
2010	35%	33%	40%
2009	34%	33%	39%
2008	30%	33%	37%
2007	29%	33%	35%
2006	26%	33%	34%
2005	25%	32%	33%
2004	28%	32%	35%
2003	29%	31%	33%
2002	30%	31%	33%
2001	29%	31%	32%
2000	28%	31%	32%
1999	26%	30%	35%
1998	27%	30%	35%
1997	29%	29%	34%
1996	26%	29%	33%
1995	29%	29%	34%
1994	29%	28%	34%
1993	30%	28%	35%
1992	36%	27%	37%
1991	27%	27%	35%

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White

22%

39%

View Data

White Student Percentage Comparison Over Years (1991-2023)
Year	Delcastle Technical High School	Delaware	New Castle County Vocational-Technical School District
2023	24%	41%	27%
2022	25%	42%	28%
2021	26%	42%	28%
2020	28%	44%	32%
2019	28%	44%	32%
2018	29%	45%	35%
2017	29%	45%	35%
2016	31%	46%	37%
2015	33%	47%	39%
2014	36%	48%	42%
2013	37%	49%	42%
2012	41%	50%	45%
2011	44%	50%	46%
2010	46%	52%	48%
2009	49%	52%	49%
2008	55%	53%	52%
2007	60%	54%	55%
2006	65%	55%	61%
2005	67%	56%	60%
2004	66%	57%	59%
2003	65%	58%	61%
2002	64%	60%	61%
2001	66%	61%	63%
2000	67%	62%	62%
1999	69%	63%	60%
1998	68%	63%	60%
1997	65%	65%	61%
1996	68%	65%	62%
1995	66%	65%	61%
1994	66%	67%	60%
1993	65%	67%	60%
1992	59%	68%	58%
1991	68%	68%	61%

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Hawaiian

n/a

Two or more races

View Data

Two or More Races Student Percentage Comparison Over Years (2013-2023)
Year	Delcastle Technical High School	Delaware	New Castle County Vocational-Technical School District
2023	4%	5%	5%
2022	3%	5%	3%
2021	2%	5%	2%
2014	1%	2%
2013	1%	2%	1%

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All Ethnic Groups

0.69

0.71

View Data

Diversity Score Comparison Over Years (1991-2023)
Year	Delcastle Technical High School	Delaware	New Castle County Vocational-Technical School District
2023	0.68	0.70	0.71
2022	0.68	0.70	0.70
2021	0.67	0.70	0.70
2020	0.67	0.69	0.68
2019	0.67	0.69	0.68
2018	0.68	0.68	0.66
2017	0.68	0.68	0.66
2016	0.67	0.67	0.65
2015	0.67	0.66	0.64
2014	0.68	0.67	0.64
2013	0.68	0.65	0.63
2012	0.66	0.64	0.62
2011	0.65	0.64	0.62
2010	0.64	0.61	0.61
2009	0.62	0.61	0.60
2008	0.59	0.61	0.59
2007	0.55	0.59	0.57
2006	0.51	0.59	0.55
2005	0.49	0.58	0.53
2004	0.49	0.57	0.53
2003	0.49	0.57	0.52
2002	0.50	0.54	0.52
2001	0.48	0.53	0.50
2000	0.48	0.52	0.50
1999	0.46	0.52	0.52
1998	0.47	0.51	0.52
1997	0.50	0.50	0.52
1996	0.47	0.50	0.51
1995	0.48	0.49	0.51
1994	0.48	0.48	0.52
1993	0.49	0.47	0.52
1992	0.53	0.47	0.52
1991	0.47	0.46	0.51

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95%

88%

View Data

Graduation Rate Comparison Over Years (2013-2023)
Year	Delcastle Technical High School	Delaware	New Castle County Vocational-Technical School District
2023	95%	88%	95%
2022	96%	88%	97%
2021	90%	80%	94%
2020	94%	88%	96%
2019	94%	88%	96%
2018	91%	87%	94%
2017	91%	87%	94%
2016	95%	85%	96%
2015	92%	86%	94%
2014	94%	87%	94%
2013	90%	81%	88%

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Participates in the

Yes

Eligible for

30%

33%

View Data

Free Lunch Eligibility Comparison Over Years (1991-2023)
Year	Delcastle Technical High School	Delaware	New Castle County Vocational-Technical School District
2023	30%	34%	28%
2022	30%	34%	28%
2021	30%	35%	28%
2020	31%	36%	28%
2019	31%	36%	28%
2016	29%	38%	27%
2015	29%	37%	26%
2014	31%	39%	28%
2013	47%	47%	40%
2012	44%	43%	35%
2011	40%	42%	33%
2010	33%	40%	27%
2009	27%	33%	23%
2008	22%	30%	19%
2007	21%	31%	20%
2006	17%	31%	19%
2005	19%	29%	18%
2004	18%	28%	17%
2003	16%	29%	16%
2002	16%	28%	16%
2001	16%	26%	16%
2000	14%	27%	14%
1999	16%	28%	14%
1998	15%	30%	14%
1997	13%	30%	13%
1996	14%	29%	13%
1995	14%	29%	14%
1994	12%	27%	14%
1993	11%	25%	11%
1992	9%	21%	10%
1991	4%	19%	7%

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Eligible for (12-13)

View Data

Reduced-Price Lunch Eligibility Comparison Over Years (1999-2013)
Year	Delcastle Technical High School	Delaware	New Castle County Vocational-Technical School District
2013	9%	5%	7%
2012	10%	6%	8%
2011	10%	6%	9%
2010	10%	7%	9%
2009	8%	7%	8%
2008	7%	6%	6%
2007	7%	6%	7%
2006	8%	5%	8%
2005	6%	6%	7%
2004	6%	6%	6%
2003	5%	7%	6%
2002	7%	6%	6%
2001	5%	6%	5%
2000	7%	6%	6%
1999	6%	6%	5%

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School Statewide Testing

View Education Department Test Scores

School District Name

New Castle County Vocational-Technical School District

Source: National Center for Education Statistics (NCES), DE Dept. of Education

School Notes

School Mascot: Cougars

Profile last updated: 02/09/2025

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Frequently Asked Questions

What is Delcastle Technical High School's ranking?

Delcastle Technical High School is ranked #156 out of 199 schools, which ranks it among the bottom 50% of public schools in Delaware.

What schools are Delcastle Technical High School often compared to?

Delcastle Technical High Schoolis often viewed alongside schools like Hodgson (Paul M.) Vocational Technical High School, Howard High School Of Technology by visitors of our site.

What percent of students have achieved state testing proficiency in math and reading?

10% of students have achieved math proficiency (compared to the 31% DE state average), while 36% of students have achieved reading proficiency (compared to the 42% DE state average).

What is the graduation rate of Delcastle Technical High School?

The graduation rate of Delcastle Technical High School is 95%, which is higher than the Delaware state average of 88%.

How many students attend Delcastle Technical High School?

1,598 students attend Delcastle Technical High School.

What is the racial composition of the student body?

43% of Delcastle Technical High School students are Hispanic, 29% of students are Black, 22% of students are White, 5% of students are Two or more races, and 1% of students are Asian.

What is the student-teacher ratio of Delcastle Technical High School?

Delcastle Technical High School has a student ration of 13:1, which is lower than the Delaware state average of 14:1.

What grades does Delcastle Technical High School offer ?

Delcastle Technical High School offers enrollment in grades 9-12 (No virtual instruction).

What school district is Delcastle Technical High School part of?

Delcastle Technical High School is part of New Castle County Vocational-Technical School District.

School Calendar

View the Delcastle Technical High School yearly calendar below. Note key dates such as:

Event

Date

First Day of Winter Sports Season (Delcastle Master Calendar)

November 10, 2025 (Monday)

Thanksgiving Break (No Classes, Offices Open) (Delcastle Master Calendar)

November 26, 2025 (Wednesday)

Thanksgiving Break (No Classes, Offices Closed) (Delcastle Master Calendar)

November 27, 2025 (Thursday)

Thanksgiving Break (No Classes, Offices Closed) (Delcastle Master Calendar)

November 28, 2025 (Friday)

First Day of Spring Sports Season (Delcastle Master Calendar)

March 02, 2026 (Monday)

School Reviews

5 4/2/2008

Delcastle is a school where our children will graduate with a certificate in their career area. This will enable them to be able to find a job with a decent starting rate. I definately recommend this school. My son has done very well with his academics and in sports. The teachers are very helpful as well. I do feel that parent involvement could be better though. The teachers give students a day (Tuesday) to stay afterschool for extra help if needed. This is a plus...

- Posted by Parent - tbroo

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