Lowest Student–Teacher Ratio in Wilmington (2025)

Schools with the fewest students per FTE teacher, among schools with at least 100 students. Ranked by the Success Index (US) from official American data; 42 schools in Wilmington, Delaware. Rank positions shown on each profile are within United States and Delaware.

1
17
Gateway Charter SchoolWilmington · Charter ElementaryStudents per teacher: 9.2
2
29
Harlan (David W. ) Elementary SchoolWilmington · Public ElementaryStudents per teacher: 9.5
3
20
Warner Elementary SchoolWilmington · Public ElementaryStudents per teacher: 9.9
4
15
Stubbs Early Education CenterWilmington · Public ElementaryStudents per teacher: 9.9
5
26
Richardson Park Elementary SchoolWilmington · Public ElementaryStudents per teacher: 10.0
6
92
Shortlidge (Evan G.) AcademyWilmington · Public ElementaryStudents per teacher: 10.3
7
22
East Side Charter SchoolWilmington · Charter ElementaryStudents per teacher: 10.3
8
32
Mote (Anna P.) Elementary SchoolWilmington · Public ElementaryStudents per teacher: 11.1
9
18
The Bayard SchoolWilmington · Public ElementaryStudents per teacher: 11.4
10
29
Skyline Middle SchoolWilmington · Public MiddleStudents per teacher: 11.7
11
24
Lewis (William C.) Dual Language Elementary SchoolWilmington · Public ElementaryStudents per teacher: 12.0
12
61
Marbrook Elementary SchoolWilmington · Public ElementaryStudents per teacher: 12.2
13
56
duPont (Pierre S.) Middle SchoolWilmington · Public MiddleStudents per teacher: 12.2
14
66
Heritage Elementary SchoolWilmington · Public ElementaryStudents per teacher: 12.6
15
44
Carrcroft Elementary SchoolWilmington · Public ElementaryStudents per teacher: 12.8
16
36
Baltz (Austin D.) Elementary SchoolWilmington · Public ElementaryStudents per teacher: 13.1
17
24
Johnson (Joseph E. Jr) Elementary SchoolWilmington · Public ElementaryStudents per teacher: 13.1
18
15
McKean (Thomas) High SchoolWilmington · Public HighStudents per teacher: 13.1
19
39
Richey Elementary SchoolWilmington · Public ElementaryStudents per teacher: 13.2
20
32
Kuumba Academy Charter SchoolWilmington · Charter ElementaryStudents per teacher: 13.2
21
69
Hanby Elementary SchoolWilmington · Public ElementaryStudents per teacher: 13.3
22
52
Springer Middle SchoolWilmington · Public MiddleStudents per teacher: 13.6
23
65
Forwood Elementary SchoolWilmington · Public ElementaryStudents per teacher: 13.7
24
35
Brandywine High SchoolWilmington · Public HighStudents per teacher: 13.8
25
25
duPont (Alexis I.) High SchoolWilmington · Public HighStudents per teacher: 13.8
26
48
Talley Middle SchoolWilmington · Public MiddleStudents per teacher: 14.5
27
65
Lombardy Elementary SchoolWilmington · Public ElementaryStudents per teacher: 14.6
28
62
Delaware Military AcademyWilmington · Charter HighStudents per teacher: 14.8
29
48
Concord High SchoolWilmington · Public HighStudents per teacher: 14.8
30
19
Great Oaks Charter SchoolWilmington · Charter HighStudents per teacher: 14.9
31
14
Stanton Middle SchoolWilmington · Public MiddleStudents per teacher: 15.1
32
50
Mount Pleasant High SchoolWilmington · Public HighStudents per teacher: 15.3
33
72
Brandywine Springs SchoolWilmington · Public ElementaryStudents per teacher: 15.4
34
16
Edison (Thomas A.) Charter SchoolWilmington · Charter ElementaryStudents per teacher: 15.5
35
77
Linden Hill Elementary SchoolWilmington · Public ElementaryStudents per teacher: 15.6
36
45
Dickinson (John) SchoolWilmington · Public HighStudents per teacher: 15.6
37
61
Lancashire Elementary SchoolWilmington · Public ElementaryStudents per teacher: 15.9
38
69
Conrad Schools of ScienceWilmington · Public HighStudents per teacher: 18.2
39
82
Charter School of WilmingtonWilmington · Charter HighStudents per teacher: 19.2
40
57
First State Montessori AcademyWilmington · Charter ElementaryStudents per teacher: 19.3
41
70
Calloway (Cab) School of the ArtsWilmington · Public HighStudents per teacher: 19.6
42
12
Freire Charter SchoolWilmington · Charter HighStudents per teacher: 23.9

#	School	Sector	Students per teacher	Success Index (US)	Key result	Students
1	Gateway Charter School Wilmington · Elementary · Grades K–8	Charter	9.2	17.3 Lower 50%	2.5% Math proficiency	211
2	Harlan (David W. ) Elementary School Wilmington · Elementary · Grades K–5	Public	9.5	28.8 Lower 50%	22% Math proficiency	322
3	Warner Elementary School Wilmington · Elementary · Grades 3–5	Public	9.9	20.3 Lower 50%	7% Math proficiency	395
4	Stubbs Early Education Center Wilmington · Elementary · Grades PK–K	Public	9.9	14.5 Lower 50%	2.5% Math proficiency	148
5	Richardson Park Elementary School Wilmington · Elementary · Grades K–5	Public	10.0	25.9 Lower 50%	17% Math proficiency	522
6	Shortlidge (Evan G.) Academy Wilmington · Elementary · Grades K–2	Public	10.3	92.3 Top 5%	–	340
7	East Side Charter School Wilmington · Elementary · Grades K–8	Charter	10.3	22.3 Lower 50%	16% Math proficiency	434
8	Mote (Anna P.) Elementary School Wilmington · Elementary · Grades K–5	Public	11.1	31.6 Lower 50%	23% Math proficiency	310
9	The Bayard School Wilmington · Elementary · Grades 1–8	Public	11.4	18.3 Lower 50%	4% Math proficiency	571
10	Skyline Middle School Wilmington · Middle · Grades 6–8	Public	11.7	29.3 Lower 50%	16% Math proficiency	408
11	Lewis (William C.) Dual Language Elementary School Wilmington · Elementary · Grades K–5	Public	12.0	24.1 Lower 50%	17% Math proficiency	347
12	Marbrook Elementary School Wilmington · Elementary · Grades K–5	Public	12.2	61.3 Top 50%	47% Math proficiency	465
13	duPont (Pierre S.) Middle School Wilmington · Middle · Grades 6–8	Public	12.2	56.1 Top 50%	40% Math proficiency	730
14	Heritage Elementary School Wilmington · Elementary · Grades K–5	Public	12.6	66.2 Top 50%	52% Math proficiency	492
15	Carrcroft Elementary School Wilmington · Elementary · Grades K–5	Public	12.8	43.5 Lower 50%	37% Math proficiency	475
16	Baltz (Austin D.) Elementary School Wilmington · Elementary · Grades K–5	Public	13.1	35.9 Lower 50%	25% Math proficiency	549
17	Johnson (Joseph E. Jr) Elementary School Wilmington · Elementary · Grades K–5	Public	13.1	24.4 Lower 50%	17% Math proficiency	276
18	McKean (Thomas) High School Wilmington · High · Grades 9–12	Public	13.1	14.7 Lower 50%	2.5% Math proficiency	920
19	Richey Elementary School Wilmington · Elementary · Grades K–5	Public	13.2	38.6 Lower 50%	31% Math proficiency	382
20	Kuumba Academy Charter School Wilmington · Elementary · Grades K–8	Charter	13.2	32.2 Lower 50%	29% Math proficiency	594
21	Hanby Elementary School Wilmington · Elementary · Grades K–5	Public	13.3	68.6 Top 25%	58% Math proficiency	520
22	Springer Middle School Wilmington · Middle · Grades 6–8	Public	13.6	52.4 Top 50%	36% Math proficiency	776
23	Forwood Elementary School Wilmington · Elementary · Grades K–5	Public	13.7	64.7 Top 50%	52% Math proficiency	384
24	Brandywine High School Wilmington · High · Grades 9–12	Public	13.8	35.3 Lower 50%	22% Math proficiency	897
25	duPont (Alexis I.) High School Wilmington · High · Grades 9–12	Public	13.8	24.6 Lower 50%	17% Math proficiency	550
26	Talley Middle School Wilmington · Middle · Grades 6–12	Public	14.5	47.8 Lower 50%	33% Math proficiency	900
27	Lombardy Elementary School Wilmington · Elementary · Grades K–5	Public	14.6	64.9 Top 50%	57% Math proficiency	466
28	Delaware Military Academy Wilmington · High · Grades 9–12	Charter	14.8	62.0 Top 50%	37% Math proficiency	547
29	Concord High School Wilmington · High · Grades 9–12	Public	14.8	47.5 Lower 50%	32% Math proficiency	994
30	Great Oaks Charter School Wilmington · High · Grades 9–12	Charter	14.9	18.6 Lower 50%	16% Math proficiency	149
31	Stanton Middle School Wilmington · Middle · Grades 6–8	Public	15.1	13.5 Lower 50%	10% Math proficiency	558
32	Mount Pleasant High School Wilmington · High · Grades 9–12	Public	15.3	49.8 Top 50%	35% Math proficiency	1,084
33	Brandywine Springs School Wilmington · Elementary · Grades K–8	Public	15.4	71.6 Top 25%	62% Math proficiency	941
34	Edison (Thomas A.) Charter School Wilmington · Elementary · Grades K–8	Charter	15.5	16.1 Lower 50%	11% Math proficiency	557
35	Linden Hill Elementary School Wilmington · Elementary · Grades K–5	Public	15.6	76.8 Top 25%	70% Math proficiency	532
36	Dickinson (John) School Wilmington · High · Grades 6–12	Public	15.6	45.0 Lower 50%	38% Math proficiency	1,027
37	Lancashire Elementary School Wilmington · Elementary · Grades K–5	Public	15.9	61.2 Top 50%	57% Math proficiency	510
38	Conrad Schools of Science Wilmington · High · Grades 6–12	Public	18.2	68.8 Top 25%	63% Math proficiency	1,164
39	Charter School of Wilmington Wilmington · High · Grades 9–12	Charter	19.2	82.3 Top 10%	91% Math proficiency	977
40	First State Montessori Academy Wilmington · Elementary · Grades K–8	Charter	19.3	56.5 Top 50%	51% Math proficiency	657
41	Calloway (Cab) School of the Arts Wilmington · High · Grades 6–12	Public	19.6	70.3 Top 25%	62% Math proficiency	941
42	Freire Charter School Wilmington · High · Grades 8–12	Charter	23.9	12.3 Lower 50%	12% Math proficiency	406

Gateway Charter School in Wilmington leads the 2025 list of lowest student–teacher ratio in Wilmington with Students per teacher 9.2. Of the 42 schools shown, 33 are public, 9 are charter.

For the full picture see the wider Delaware lowest student–teacher ratio rankings, every school on the Wilmington page, or the comparison tool to put a shortlist side by side.

Free academic assessment

Is your child on grade level in reading and math?

Success Tutoring offers personalised English and math tutoring from Kindergarten to Grade 12. Start with a free online assessment and a clear plan for the year ahead.

Personalised learning plan mapped to the Australian Curriculum
English & Maths from Kindergarten to Year 12
Flexible memberships, no lock-in contracts
Centres across NSW, VIC, QLD, WA, SA and ACT

Frequently asked questions

What is the best ratio school in Wilmington?

Gateway Charter School in Wilmington, Delaware ranks first among lowest student–teacher ratio in Wilmington with Students per teacher 9.2 (Enrollment: 211).

How are lowest student–teacher ratio in Wilmington ranked?

Schools with the fewest students per FTE teacher, among schools with at least 100 students. Only schools eligible for the Success Index (US) are included; the index is shown alongside for context.

Are these 2025 rankings official?

No. They are computed by Success Tutoring from official American data (Urban Institute Education Data Portal (NCES CCD, EDFacts); NCES Common Core of Data). States set their own assessments and proficiency cut scores, so proficiency rates are most comparable within a state. Use the state rankings for like-for-like comparisons.