Largest Schools in Wilmington (2025)

Schools with the highest enrollment. Ranked by the Success Index (US) from official American data; 44 schools in Wilmington, Delaware. Rank positions shown on each profile are within United States and Delaware.

#	School	Sector	Enrollment	Success Index (US)	Key result	Students
1	Conrad Schools of Science Wilmington · High · Grades 6–12	Public	1,164	68.8 Top 25%	63% Math proficiency	1,164
2	Mount Pleasant High School Wilmington · High · Grades 9–12	Public	1,084	49.8 Top 50%	35% Math proficiency	1,084
3	Dickinson (John) School Wilmington · High · Grades 6–12	Public	1,027	45.0 Lower 50%	38% Math proficiency	1,027
4	Concord High School Wilmington · High · Grades 9–12	Public	994	47.5 Lower 50%	32% Math proficiency	994
5	Charter School of Wilmington Wilmington · High · Grades 9–12	Charter	977	82.3 Top 10%	91% Math proficiency	977
6	Brandywine Springs School Wilmington · Elementary · Grades K–8	Public	941	71.6 Top 25%	62% Math proficiency	941
7	Calloway (Cab) School of the Arts Wilmington · High · Grades 6–12	Public	941	70.3 Top 25%	62% Math proficiency	941
8	McKean (Thomas) High School Wilmington · High · Grades 9–12	Public	920	14.7 Lower 50%	2.5% Math proficiency	920
9	Talley Middle School Wilmington · Middle · Grades 6–12	Public	900	47.8 Lower 50%	33% Math proficiency	900
10	Brandywine High School Wilmington · High · Grades 9–12	Public	897	35.3 Lower 50%	22% Math proficiency	897
11	Springer Middle School Wilmington · Middle · Grades 6–8	Public	776	52.4 Top 50%	36% Math proficiency	776
12	duPont (Pierre S.) Middle School Wilmington · Middle · Grades 6–8	Public	730	56.1 Top 50%	40% Math proficiency	730
13	First State Montessori Academy Wilmington · Elementary · Grades K–8	Charter	657	56.5 Top 50%	51% Math proficiency	657
14	Maurice Pritchett SR. Academy Wilmington · Elementary · Grades 1–8	Public	616	4.3 Lower 50%	17% Math proficiency	616
15	Kuumba Academy Charter School Wilmington · Elementary · Grades K–8	Charter	594	32.2 Lower 50%	29% Math proficiency	594
16	The Bayard School Wilmington · Elementary · Grades 1–8	Public	571	18.3 Lower 50%	4% Math proficiency	571
17	Stanton Middle School Wilmington · Middle · Grades 6–8	Public	558	13.5 Lower 50%	10% Math proficiency	558
18	Edison (Thomas A.) Charter School Wilmington · Elementary · Grades K–8	Charter	557	16.1 Lower 50%	11% Math proficiency	557
19	duPont (Alexis I.) High School Wilmington · High · Grades 9–12	Public	550	24.6 Lower 50%	17% Math proficiency	550
20	Baltz (Austin D.) Elementary School Wilmington · Elementary · Grades K–5	Public	549	35.9 Lower 50%	25% Math proficiency	549
21	Delaware Military Academy Wilmington · High · Grades 9–12	Charter	547	62.0 Top 50%	37% Math proficiency	547
22	Linden Hill Elementary School Wilmington · Elementary · Grades K–5	Public	532	76.8 Top 25%	70% Math proficiency	532
23	Richardson Park Elementary School Wilmington · Elementary · Grades K–5	Public	522	25.9 Lower 50%	17% Math proficiency	522
24	Hanby Elementary School Wilmington · Elementary · Grades K–5	Public	520	68.6 Top 25%	58% Math proficiency	520
25	Lancashire Elementary School Wilmington · Elementary · Grades K–5	Public	510	61.2 Top 50%	57% Math proficiency	510
26	Heritage Elementary School Wilmington · Elementary · Grades K–5	Public	492	66.2 Top 50%	52% Math proficiency	492
27	Carrcroft Elementary School Wilmington · Elementary · Grades K–5	Public	475	43.5 Lower 50%	37% Math proficiency	475
28	Lombardy Elementary School Wilmington · Elementary · Grades K–5	Public	466	64.9 Top 50%	57% Math proficiency	466
29	Marbrook Elementary School Wilmington · Elementary · Grades K–5	Public	465	61.3 Top 50%	47% Math proficiency	465
30	East Side Charter School Wilmington · Elementary · Grades K–8	Charter	434	22.3 Lower 50%	16% Math proficiency	434
31	Skyline Middle School Wilmington · Middle · Grades 6–8	Public	408	29.3 Lower 50%	16% Math proficiency	408
32	Freire Charter School Wilmington · High · Grades 8–12	Charter	406	12.3 Lower 50%	12% Math proficiency	406
33	Warner Elementary School Wilmington · Elementary · Grades 3–5	Public	395	20.3 Lower 50%	7% Math proficiency	395
34	Forwood Elementary School Wilmington · Elementary · Grades K–5	Public	384	64.7 Top 50%	52% Math proficiency	384
35	Richey Elementary School Wilmington · Elementary · Grades K–5	Public	382	38.6 Lower 50%	31% Math proficiency	382
36	Lewis (William C.) Dual Language Elementary School Wilmington · Elementary · Grades K–5	Public	347	24.1 Lower 50%	17% Math proficiency	347
37	Shortlidge (Evan G.) Academy Wilmington · Elementary · Grades K–2	Public	340	92.3 Top 5%	–	340
38	Harlan (David W. ) Elementary School Wilmington · Elementary · Grades K–5	Public	322	28.8 Lower 50%	22% Math proficiency	322
39	Mote (Anna P.) Elementary School Wilmington · Elementary · Grades K–5	Public	310	31.6 Lower 50%	23% Math proficiency	310
40	Johnson (Joseph E. Jr) Elementary School Wilmington · Elementary · Grades K–5	Public	276	24.4 Lower 50%	17% Math proficiency	276
41	Gateway Charter School Wilmington · Elementary · Grades K–8	Charter	211	17.3 Lower 50%	2.5% Math proficiency	211
42	Great Oaks Charter School Wilmington · High · Grades 9–12	Charter	149	18.6 Lower 50%	16% Math proficiency	149
43	Stubbs Early Education Center Wilmington · Elementary · Grades PK–K	Public	148	14.5 Lower 50%	2.5% Math proficiency	148
44	Pulaski Early Education Center Wilmington · Elementary · Grades PK–K	Public	93	14.5 Lower 50%	17% Math proficiency	93

Conrad Schools of Science in Wilmington leads the 2025 list of largest schools in Wilmington with Enrollment 1,164. Of the 44 schools shown, 35 are public, 9 are charter.

For the full picture see the wider Delaware largest schools rankings, every school on the Wilmington page, or the comparison tool to put a shortlist side by side.

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Frequently asked questions

What is the best largest school in Wilmington?

Conrad Schools of Science in Wilmington, Delaware ranks first among largest schools in Wilmington with Enrollment 1,164 (Enrollment: 1,164).

How are largest schools in Wilmington ranked?

Schools with the highest enrollment. 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.