Largest Schools in Howard County Public Schools (2025)

Schools with the highest enrollment. Ranked by the Success Index (US) from official American data; 75 schools in Howard County Public Schools, Maryland. Rank positions shown on each profile are within United States and Maryland.

#	School	Sector	Enrollment	Success Index (US)	Key result	Students
1	Marriotts Ridge High Marriottsville · High · Grades 9–12	Public	1,741	84.5 Top 5%	85% Math proficiency	1,741
2	Reservoir High Fulton · High · Grades 9–12	Public	1,597	73.5 Top 25%	64% Math proficiency	1,597
3	Atholton High Columbia · High · Grades 9–12	Public	1,540	77.6 Top 10%	73% Math proficiency	1,540
4	Howard High Ellicott City · High · Grades 9–12	Public	1,493	79.9 Top 10%	77% Math proficiency	1,493
5	Mount Hebron High Ellicott City · High · Grades 9–12	Public	1,455	78.6 Top 10%	78% Math proficiency	1,455
6	Oakland Mills High Columbia · High · Grades 9–12	Public	1,413	53.3 Top 50%	47% Math proficiency	1,413
7	River Hill High Clarksville · High · Grades 9–12	Public	1,383	84.8 Top 5%	91% Math proficiency	1,383
8	Centennial High Ellicott City · High · Grades 9–12	Public	1,377	81.9 Top 10%	84% Math proficiency	1,377
9	Glenelg High Glenelg · High · Grades 9–12	Public	1,363	85.6 Top 5%	86% Math proficiency	1,363
10	Long Reach High Columbia · High · Grades 9–12	Public	1,334	63.4 Top 50%	51% Math proficiency	1,334
11	Guilford Park High Jessup · High · Grades 9–12	Public	1,218	53.3 Top 50%	45.2% Free/reduced-price lunch	1,218
12	Wilde Lake High Columbia · High · Grades 9–12	Public	1,197	60.2 Top 50%	48% Math proficiency	1,197
13	Hammond High Columbia · High · Grades 9–12	Public	1,159	65.6 Top 50%	55% Math proficiency	1,159
14	Veterans Elementary Ellicott City · Elementary · Grades PK–5	Public	883	73.4 Top 25%	62% Math proficiency	883
15	Mount View Middle Marriottsville · Middle · Grades 6–8	Public	881	85.2 Top 5%	77% Math proficiency	881
16	Hanover Hills Elementary Hanover · Elementary · Grades PK–5	Public	875	47.6 Lower 50%	37% Math proficiency	875
17	Fulton Elementary Fulton · Elementary · Grades PK–5	Public	872	79.0 Top 25%	66% Math proficiency	872
18	Patuxent Valley Middle Jessup · Middle · Grades 6–8	Public	840	52.1 Top 50%	36% Math proficiency	840
19	Pointers Run Elementary Clarksville · Elementary · Grades PK–5	Public	835	87.7 Top 5%	79% Math proficiency	835
20	Waverly Elementary Ellicott City · Elementary · Grades PK–5	Public	827	88.9 Top 5%	76% Math proficiency	827
21	Bellows Spring Elementary Ellicott City · Elementary · Grades PK–5	Public	806	76.4 Top 25%	59% Math proficiency	806
22	Elkridge Elementary Elkridge · Elementary · Grades PK–5	Public	798	51.1 Top 50%	44% Math proficiency	798
23	Burleigh Manor Middle Ellicott City · Middle · Grades 6–8	Public	777	84.1 Top 10%	74% Math proficiency	777
24	Bollman Bridge Elementary Jessup · Elementary · Grades PK–5	Public	775	38.1 Lower 50%	26% Math proficiency	775
25	Northfield Elementary Ellicott City · Elementary · Grades K–5	Public	764	76.0 Top 25%	63% Math proficiency	764
26	Hammond Elementary Laurel · Elementary · Grades K–5	Public	763	65.8 Top 50%	55% Math proficiency	763
27	Thomas Viaduct Middle Hanover · Middle · Grades 6–8	Public	758	47.2 Lower 50%	30% Math proficiency	758
28	Gorman Crossing Elementary Laurel · Elementary · Grades PK–5	Public	750	65.8 Top 50%	52% Math proficiency	750
29	Centennial Lane Elementary Ellicott City · Elementary · Grades PK–5	Public	749	84.4 Top 10%	77% Math proficiency	749
30	Dayton Oaks Elementary Dayton · Elementary · Grades PK–5	Public	739	82.3 Top 10%	69% Math proficiency	739
31	Bonnie Branch Middle Ellicott City · Middle · Grades 6–8	Public	739	69.5 Top 25%	54% Math proficiency	739
32	Mayfield Woods Middle Elkridge · Middle · Grades 6–8	Public	731	52.4 Top 50%	37% Math proficiency	731
33	Ellicott Mills Middle Ellicott City · Middle · Grades 6–8	Public	698	78.9 Top 25%	61% Math proficiency	698
34	Manor Woods Elementary Ellicott City · Elementary · Grades K–5	Public	697	83.4 Top 10%	70% Math proficiency	697
35	Elkridge Landing Middle Elkridge · Middle · Grades 6–8	Public	686	67.8 Top 25%	46% Math proficiency	686
36	Folly Quarter Middle Ellicott City · Middle · Grades 6–8	Public	682	86.9 Top 5%	76% Math proficiency	682
37	Phelps Luck Elementary Columbia · Elementary · Grades PK–5	Public	681	51.8 Top 50%	39% Math proficiency	681
38	Clarksville Middle Clarksville · Middle · Grades 6–8	Public	679	87.8 Top 5%	83% Math proficiency	679
39	Hollifield Station Elementary Ellicott City · Elementary · Grades K–5	Public	677	62.6 Top 50%	53% Math proficiency	677
40	Lime Kiln Middle Fulton · Middle · Grades 6–8	Public	675	84.7 Top 10%	70% Math proficiency	675
41	Patapsco Middle Ellicott City · Middle · Grades 6–8	Public	670	73.6 Top 25%	60% Math proficiency	670
42	Waterloo Elementary Columbia · Elementary · Grades PK–5	Public	666	73.7 Top 25%	58% Math proficiency	666
43	Forest Ridge Elementary Laurel · Elementary · Grades PK–5	Public	659	57.7 Top 50%	47% Math proficiency	659
44	Rockburn Elementary Elkridge · Elementary · Grades PK–5	Public	649	82.0 Top 10%	70% Math proficiency	649
45	Wilde Lake Middle Columbia · Middle · Grades 6–8	Public	643	49.6 Lower 50%	31% Math proficiency	643
46	Deep Run Elementary Elkridge · Elementary · Grades PK–5	Public	638	48.3 Lower 50%	41% Math proficiency	638
47	St. Johns Lane Elementary Ellicott City · Elementary · Grades K–5	Public	636	74.8 Top 25%	62% Math proficiency	636
48	Bushy Park Elementary Glenwood · Elementary · Grades PK–5	Public	631	87.8 Top 5%	73% Math proficiency	631
49	Laurel Woods Elementary Laurel · Elementary · Grades PK–5	Public	625	43.9 Lower 50%	37% Math proficiency	625
50	Dunloggin Middle Ellicott City · Middle · Grades 6–8	Public	623	77.5 Top 25%	62% Math proficiency	623
51	Triadelphia Ridge Elementary Ellicott City · Elementary · Grades PK–5	Public	619	87.3 Top 5%	79% Math proficiency	619
52	Murray Hill Middle Laurel · Middle · Grades 6–8	Public	616	55.3 Top 50%	39% Math proficiency	616
53	Hammond Middle Laurel · Middle · Grades 6–8	Public	604	77.7 Top 25%	55% Math proficiency	604
54	Swansfield Elementary Columbia · Elementary · Grades PK–5	Public	594	40.6 Lower 50%	25% Math proficiency	594
55	Ducketts Lane Elementary Elkridge · Elementary · Grades PK–5	Public	573	46.3 Lower 50%	38% Math proficiency	573
56	Lake Elkhorn Middle Columbia · Middle · Grades 6–8	Public	569	40.9 Lower 50%	27% Math proficiency	569
57	Clarksville Elementary Clarksville · Elementary · Grades K–5	Public	543	90.3 Top 5%	87% Math proficiency	543
58	Atholton Elementary Columbia · Elementary · Grades PK–5	Public	516	72.5 Top 25%	58% Math proficiency	516
59	Glenwood Middle Glenwood · Middle · Grades 6–8	Public	494	87.5 Top 5%	66% Math proficiency	494
60	Ilchester Elementary Ellicott City · Elementary · Grades PK–5	Public	482	88.6 Top 5%	78% Math proficiency	482
61	Clemens Crossing Elementary Columbia · Elementary · Grades K–5	Public	481	79.0 Top 25%	65% Math proficiency	481
62	Lisbon Elementary Woodbine · Elementary · Grades K–5	Public	480	72.9 Top 25%	57% Math proficiency	480
63	Harpers Choice Middle Columbia · Middle · Grades 6–8	Public	471	40.7 Lower 50%	29% Math proficiency	471
64	Talbott Springs Elementary Columbia · Elementary · Grades PK–5	Public	461	62.9 Top 50%	48% Math proficiency	461
65	Thunder Hill Elementary Columbia · Elementary · Grades K–5	Public	459	72.5 Top 25%	57% Math proficiency	459
66	Cradlerock Elementary Columbia · Elementary · Grades PK–5	Public	453	32.2 Lower 50%	19% Math proficiency	453
67	Longfellow Elementary Columbia · Elementary · Grades PK–5	Public	446	56.0 Top 50%	42% Math proficiency	446
68	Guilford Elementary Columbia · Elementary · Grades PK–5	Public	437	42.6 Lower 50%	31% Math proficiency	437
69	Oakland Mills Middle Columbia · Middle · Grades 6–8	Public	415	42.9 Lower 50%	28% Math proficiency	415
70	Running Brook Elementary Columbia · Elementary · Grades PK–5	Public	407	47.7 Lower 50%	35% Math proficiency	407
71	Jeffers Hill Elementary Columbia · Elementary · Grades PK–5	Public	406	56.4 Top 50%	41% Math proficiency	406
72	Worthington Elementary Ellicott City · Elementary · Grades PK–5	Public	403	90.2 Top 5%	79% Math proficiency	403
73	West Friendship Elementary West Friendship · Elementary · Grades K–5	Public	367	85.6 Top 5%	65% Math proficiency	367
74	Bryant Woods Elementary Columbia · Elementary · Grades PK–5	Public	366	42.0 Lower 50%	32% Math proficiency	366
75	Stevens Forest Elementary Columbia · Elementary · Grades PK–5	Public	314	42.6 Lower 50%	32% Math proficiency	314

Marriotts Ridge High in Marriottsville leads the 2025 list of largest schools in Howard County Public Schools with Enrollment 1,741. Of the 75 schools shown, 75 are public.

For the full picture see the wider Maryland largest schools rankings, every school on the Howard County Public Schools 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 Howard County Public Schools?

Marriotts Ridge High in Marriottsville, Maryland ranks first among largest schools in Howard County Public Schools with Enrollment 1,741 (Enrollment: 1,741).

How are largest schools in Howard County Public Schools 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.