Top 100 largest schools in Maryland (2025)

Schools with the highest enrollment. Ordered by the measure shown, with the Success Index (US) for context; 100 schools shown.

#	School	Sector	Enrollment	Success Index (US)	Key result	Students
1	Montgomery Blair High Silver Spring · High · Grades 9–12	Public	3,266	63.3 Top 50%	58% Math proficiency	3,266
2	Walter Johnson High Bethesda · High · Grades 9–12	Public	3,016	81.5 Top 10%	78% Math proficiency	3,016
3	High Point High Beltsville · High · Grades 9–12	Public	3,012	18.8 Lower 50%	14% Math proficiency	3,012
4	Wheaton High Silver Spring · High · Grades 9–12	Public	2,794	54.1 Top 50%	50% Math proficiency	2,794
5	Charles Herbert Flowers High Springdale · High · Grades 9–12	Public	2,712	42.5 Lower 50%	38% Math proficiency	2,712
6	Parkdale High Riverdale · High · Grades 9–12	Public	2,588	20.6 Lower 50%	18% Math proficiency	2,588
7	Bowie High Bowie · High · Grades 9–12	Public	2,580	46.2 Lower 50%	35% Math proficiency	2,580
8	Eleanor Roosevelt High Greenbelt · High · Grades 9–12	Public	2,544	57.2 Top 50%	60% Math proficiency	2,544
9	Duval High Lanham · High · Grades 9–12	Public	2,522	22.9 Lower 50%	19% Math proficiency	2,522
10	Gaithersburg High Gaithersburg · High · Grades 9–12	Public	2,441	49.2 Lower 50%	33% Math proficiency	2,441
11	Seneca Valley High Germantown · High · Grades 9–12	Public	2,409	45.1 Lower 50%	32% Math proficiency	2,409
12	Northwestern High Hyattsville · High · Grades 9–12	Public	2,396	17.9 Lower 50%	16% Math proficiency	2,396
13	Bethesda-Chevy Chase High Bethesda · High · Grades 9–12	Public	2,377	80.1 Top 10%	76% Math proficiency	2,377
14	Richard Montgomery High Rockville · High · Grades 9–12	Public	2,366	75.0 Top 25%	74% Math proficiency	2,366
15	Northwest High Germantown · High · Grades 9–12	Public	2,300	67.5 Top 25%	59% Math proficiency	2,300
16	Dr. Henry A. Wise Jr. High Upper Marlboro · High · Grades 9–12	Public	2,291	21.4 Lower 50%	14% Math proficiency	2,291
17	Clarksburg High Clarksburg · High · Grades 9–12	Public	2,241	63.0 Top 50%	54% Math proficiency	2,241
18	Glen Burnie High Glen Burnie · High · Grades 9–12	Public	2,226	33.9 Lower 50%	26% Math proficiency	2,226
19	Winston Churchill High Potomac · High · Grades 9–12	Public	2,185	83.2 Top 5%	84% Math proficiency	2,185
20	North County High Glen Burnie · High · Grades 9–12	Public	2,161	43.6 Lower 50%	33% Math proficiency	2,161
21	Broadneck High Annapolis · High · Grades 9–12	Public	2,143	75.9 Top 25%	68% Math proficiency	2,143
22	Laurel High Laurel · High · Grades 9–12	Public	2,129	20.6 Lower 50%	20% Math proficiency	2,129
23	Leonardtown High Leonardtown · High · Grades 9–12	Public	2,118	71.9 Top 25%	64% Math proficiency	2,118
24	Bladensburg High Bladensburg · High · Grades 9–12	Public	2,114	19.3 Lower 50%	15% Math proficiency	2,114
25	Quince Orchard High Gaithersburg · High · Grades 9–12	Public	2,100	63.3 Top 50%	55% Math proficiency	2,100
26	Dundalk High Baltimore · High · Grades 9–12	Public	2,087	22.5 Lower 50%	16% Math proficiency	2,087
27	Annapolis High Annapolis · High · Grades 9–12	Public	2,075	47.3 Lower 50%	42% Math proficiency	2,075
28	Gov. Thomas Johnson High Frederick · High · Grades 9–12	Public	2,066	53.0 Top 50%	48% Math proficiency	2,066
29	Walt Whitman High Bethesda · High · Grades 9–12	Public	2,056	85.4 Top 5%	86% Math proficiency	2,056
30	Meade High Ft Meade · High · Grades 9–12	Public	2,045	40.5 Lower 50%	29% Math proficiency	2,045
31	Paint Branch High Burtonsville · High · Grades 9–12	Public	2,038	57.8 Top 50%	47% Math proficiency	2,038
32	Perry Hall High Baltimore · High · Grades 9–12	Public	2,012	50.4 Top 50%	38% Math proficiency	2,012
33	Albert Einstein High Kensington · High · Grades 9–12	Public	1,991	55.9 Top 50%	41% Math proficiency	1,991
34	Urbana High Ijamsville · High · Grades 9–12	Public	1,989	80.6 Top 10%	84% Math proficiency	1,989
35	North Point High School Waldorf · High · Grades 9–12	Public	1,960	69.4 Top 25%	54% Math proficiency	1,960
36	James Hubert Blake High Silver Spring · High · Grades 9–12	Public	1,960	53.4 Top 50%	45% Math proficiency	1,960
37	Woodlawn High Baltimore · High · Grades 9–12	Public	1,922	17.0 Lower 50%	6% Math proficiency	1,922
38	Crofton High School Gambrills · High · Grades 9–12	Public	1,906	66.2 Top 25%	17.3% Free/reduced-price lunch	1,906
39	Kenwood High Baltimore · High · Grades 9–12	Public	1,900	22.6 Lower 50%	13% Math proficiency	1,900
40	Dulaney High Timonium · High · Grades 9–12	Public	1,889	71.9 Top 25%	64% Math proficiency	1,889
41	John F. Kennedy High Silver Spring · High · Grades 9–12	Public	1,880	34.2 Lower 50%	22% Math proficiency	1,880
42	Parkville High Baltimore · High · Grades 9–12	Public	1,877	33.7 Lower 50%	24% Math proficiency	1,877
43	Thomas S. Wootton High Rockville · High · Grades 9–12	Public	1,870	84.5 Top 5%	87% Math proficiency	1,870
44	Suitland High Suitland · High · Grades 9–12	Public	1,847	16.1 Lower 50%	11% Math proficiency	1,847
45	Severna Park High Severna Park · High · Grades 9–12	Public	1,842	81.2 Top 10%	81% Math proficiency	1,842
46	Springbrook High Silver Spring · High · Grades 9–12	Public	1,838	49.1 Lower 50%	46% Math proficiency	1,838
47	Old Mill High Millersville · High · Grades 9–12	Public	1,832	45.2 Lower 50%	39% Math proficiency	1,832
48	Frederick High Frederick · High · Grades 9–12	Public	1,821	49.3 Lower 50%	45% Math proficiency	1,821
49	Arundel High Gambrills · High · Grades 9–12	Public	1,778	66.2 Top 25%	52% Math proficiency	1,778
50	Marriotts Ridge High Marriottsville · High · Grades 9–12	Public	1,741	84.5 Top 5%	85% Math proficiency	1,741
51	Catonsville High Baltimore · High · Grades 9–12	Public	1,735	60.9 Top 50%	47% Math proficiency	1,735
52	Tuscarora High Frederick · High · Grades 9–12	Public	1,735	62.9 Top 50%	59% Math proficiency	1,735
53	Oakdale High Ijamsville · High · Grades 9–12	Public	1,702	80.2 Top 10%	79% Math proficiency	1,702
54	Great Mills High Great Mills · High · Grades 9–12	Public	1,697	45.0 Lower 50%	47% Math proficiency	1,697
55	South Hagerstown High Hagerstown · High · Grades 9–12	Public	1,690	40.7 Lower 50%	27% Math proficiency	1,690
56	South River High Edgewater · High · Grades 9–12	Public	1,680	78.2 Top 10%	73% Math proficiency	1,680
57	Sherwood High Sandy Spring · High · Grades 9–12	Public	1,675	73.8 Top 25%	64% Math proficiency	1,675
58	Col. Zadok Magruder High Rockville · High · Grades 9–12	Public	1,671	57.3 Top 50%	50% Math proficiency	1,671
59	Colin L Powell Academy Fort Washington · Elementary · Grades PK–8	Public	1,661	40.3 Lower 50%	66% Free/reduced-price lunch	1,661
60	Northwood High Rockville · High · Grades 9–12	Public	1,654	41.2 Lower 50%	30% Math proficiency	1,654
61	Linganore High Frederick · High · Grades 9–12	Public	1,647	77.8 Top 10%	75% Math proficiency	1,647
62	Baltimore Polytechnic Institute Baltimore · High · Grades 9–12	Public	1,632	72.0 Top 25%	82% Math proficiency	1,632
63	St. Charles High School Waldorf · High · Grades 9–12	Public	1,617	33.9 Lower 50%	22% Math proficiency	1,617
64	Severn Run High School Severn · High · Grades 9–12	Public	1,608	61.1 Top 50%	33% Free/reduced-price lunch	1,608
65	Reservoir High Fulton · High · Grades 9–12	Public	1,597	73.5 Top 25%	64% Math proficiency	1,597
66	North Hagerstown High Hagerstown · High · Grades 9–12	Public	1,583	47.7 Lower 50%	37% Math proficiency	1,583
67	Perry Hall Middle Baltimore · Middle · Grades 6–8	Public	1,582	54.4 Top 50%	43% Math proficiency	1,582
68	Watkins Mill High Gaithersburg · High · Grades 9–12	Public	1,577	33.3 Lower 50%	22% Math proficiency	1,577
69	Oxon Hill High Oxon Hill · High · Grades 9–12	Public	1,562	48.1 Lower 50%	38% Math proficiency	1,562
70	Towson High Towson · High · Grades 9–12	Public	1,558	75.2 Top 25%	69% Math proficiency	1,558
71	Rockville High Rockville · High · Grades 9–12	Public	1,550	60.2 Top 50%	49% Math proficiency	1,550
72	Chesapeake High Pasadena · High · Grades 9–12	Public	1,540	69.1 Top 25%	53% Math proficiency	1,540
73	Atholton High Columbia · High · Grades 9–12	Public	1,540	77.6 Top 10%	73% Math proficiency	1,540
74	Chopticon High Morganza · High · Grades 9–12	Public	1,526	65.1 Top 50%	60% Math proficiency	1,526
75	Howard High Ellicott City · High · Grades 9–12	Public	1,493	79.9 Top 10%	77% Math proficiency	1,493
76	Franklin High Reisterstown · High · Grades 9–12	Public	1,481	48.3 Lower 50%	39% Math proficiency	1,481
77	Northern High Owings · High · Grades 9–12	Public	1,478	75.7 Top 25%	61% Math proficiency	1,478
78	Westminster High Westminster · High · Grades 9–12	Public	1,477	76.3 Top 25%	64% Math proficiency	1,477
79	Overlea High Baltimore · High · Grades 9–12	Public	1,474	18.4 Lower 50%	7% Math proficiency	1,474
80	James M. Bennett High Salisbury · High · Grades 9–12	Public	1,474	53.9 Top 50%	52% Math proficiency	1,474
81	Milford Mill Academy Baltimore · High · Grades 9–12	Public	1,471	22.1 Lower 50%	14% Math proficiency	1,471
82	Baltimore City College Baltimore · High · Grades 9–12	Public	1,470	61.3 Top 50%	52% Math proficiency	1,470
83	Stephen Decatur High Berlin · High · Grades 9–12	Public	1,462	69.2 Top 25%	63% Math proficiency	1,462
84	Mount Hebron High Ellicott City · High · Grades 9–12	Public	1,455	78.6 Top 10%	78% Math proficiency	1,455
85	Accokeek Academy Accokeek · Elementary · Grades K–8	Public	1,445	48.4 Lower 50%	34% Math proficiency	1,445
86	Edgewood High Edgewood · High · Grades 9–12	Public	1,440	43.4 Lower 50%	37% Math proficiency	1,440
87	New Town High Owings Mills · High · Grades 9–12	Public	1,414	27.1 Lower 50%	21% Math proficiency	1,414
88	Oakland Mills High Columbia · High · Grades 9–12	Public	1,413	53.3 Top 50%	47% Math proficiency	1,413
89	KIPP Harmony Academy Baltimore · Elementary · Grades PK–8	Charter	1,399	19.0 Lower 50%	20% Math proficiency	1,399
90	Aberdeen High Aberdeen · High · Grades 9–12	Public	1,396	57.7 Top 50%	45% Math proficiency	1,396
91	Damascus High Damascus · High · Grades 9–12	Public	1,390	75.5 Top 25%	74% Math proficiency	1,390
92	Northeast High Pasadena · High · Grades 9–12	Public	1,387	46.3 Lower 50%	27% Math proficiency	1,387
93	Severna Park Middle Severna Park · Middle · Grades 6–8	Public	1,386	84.5 Top 10%	75% Math proficiency	1,386
94	Patapsco High and Center for Arts Baltimore · High · Grades 9–12	Public	1,385	27.5 Lower 50%	17% Math proficiency	1,385
95	River Hill High Clarksville · High · Grades 9–12	Public	1,383	84.8 Top 5%	91% Math proficiency	1,383
96	Centennial High Ellicott City · High · Grades 9–12	Public	1,377	81.9 Top 10%	84% Math proficiency	1,377
97	Roland Park Elementary/Middle Baltimore · Elementary · Grades PK–8	Public	1,371	65.7 Top 50%	58% Math proficiency	1,371
98	Julius West Middle Rockville · Middle · Grades 6–8	Public	1,365	66.2 Top 50%	53% Math proficiency	1,365
99	Glenelg High Glenelg · High · Grades 9–12	Public	1,363	85.6 Top 5%	86% Math proficiency	1,363
100	Poolesville High Poolesville · High · Grades 9–12	Public	1,351	81.7 Top 10%	84% Math proficiency	1,351

Montgomery Blair High in Silver Spring leads the 2025 list of largest schools in Maryland with Enrollment 3,266. Of the 100 schools shown, 99 are public, 1 are charter.

Use the rankings to build a shortlist, then visit the schools and ask how they support students at your child's level.

Download this table as CSV · free to reuse with attribution to the original sources and Success Tutoring

Largest Schools in:United States Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware District of Columbia Florida Georgia Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington West Virginia Wisconsin Wyoming

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 largest school in Maryland?

Montgomery Blair High in Silver Spring ranks first among largest schools in Maryland with Enrollment 3,266 (Enrollment: 3,266).

How are largest schools in Maryland 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.