Largest Schools in Shelby County (2025)

Schools with the highest enrollment. Ranked by the Success Index (US) from official American data; 28 schools in Shelby County, Alabama. Rank positions shown on each profile are within United States and Alabama.

#	School	Sector	Enrollment	Success Index (US)	Key result	Students
1	Oak Mountain High School Birmingham · High · Grades 9–12	Public	1,648	72.0 Top 25%	73% Math proficiency	1,648
2	Helena High School Helena · High · Grades 9–12	Public	1,383	68.4 Top 25%	62% Math proficiency	1,383
3	Chelsea High School Chelsea · High · Grades 9–12	Public	1,235	65.9 Top 50%	59% Math proficiency	1,235
4	Oak Mountain Middle School Birmingham · Middle · Grades 6–8	Public	1,168	73.2 Top 25%	70% Math proficiency	1,168
5	Calera High Calera · High · Grades 9–12	Public	1,018	37.9 Lower 50%	37% Math proficiency	1,018
6	Helena Middle Helena · Middle · Grades 6–8	Public	957	71.2 Top 25%	64% Math proficiency	957
7	Helena Intermediate School Helena · Elementary · Grades 3–5	Public	955	63.7 Top 50%	53% Math proficiency	955
8	Chelsea Park Elementary School Chelsea · Elementary · Grades K–5	Public	891	69.3 Top 25%	62% Math proficiency	891
9	Chelsea Middle School Chelsea · Middle · Grades 6–8	Public	831	70.4 Top 25%	65% Math proficiency	831
10	Helena Elementary School Helena · Elementary · Grades K–2	Public	778	60.7 Top 50%	30.1% Free/reduced-price lunch	778
11	Calera Middle Montevallo · Middle · Grades 6–8	Public	767	41.5 Lower 50%	43% Math proficiency	767
12	Calera Elementary Calera · Elementary · Grades K–2	Public	766	35.5 Lower 50%	64.8% Free/reduced-price lunch	766
13	Montevallo Elementary School Montevallo · Elementary · Grades K–5	Public	758	45.2 Lower 50%	56% Math proficiency	758
14	Calera Intermediate School Calera · Elementary · Grades 3–5	Public	747	41.0 Lower 50%	43% Math proficiency	747
15	Oak Mountain Elementary School Birmingham · Elementary · Grades PK–3	Public	675	77.0 Top 25%	72% Math proficiency	675
16	Oak Mountain Intermediate School Birmingham · Elementary · Grades 4–5	Public	636	75.3 Top 25%	71% Math proficiency	636
17	Forest Oaks Elementary School Chelsea · Elementary · Grades K–5	Public	606	64.6 Top 50%	55% Math proficiency	606
18	Shelby County High School Columbiana · High · Grades 9–12	Public	572	44.4 Lower 50%	47% Math proficiency	572
19	Inverness Elementary School Birmingham · Elementary · Grades PK–3	Public	563	63.9 Top 50%	57% Math proficiency	563
20	Elvin Hill Elementary School Columbiana · Elementary · Grades K–5	Public	534	43.0 Lower 50%	43% Math proficiency	534
21	Mt Laurel Elementary School Birmingham · Elementary · Grades K–5	Public	498	82.1 Top 10%	80% Math proficiency	498
22	Montevallo High School Montevallo · High · Grades 9–12	Public	485	31.6 Lower 50%	32% Math proficiency	485
23	Vincent Middle High School Vincent · High · Grades 6–12	Public	447	40.5 Lower 50%	34% Math proficiency	447
24	Columbiana Middle School Columbiana · Middle · Grades 6–8	Public	428	51.2 Top 50%	51% Math proficiency	428
25	Vincent Elementary School Vincent · Elementary · Grades PK–5	Public	397	50.7 Top 50%	57% Math proficiency	397
26	Montevallo Middle School Montevallo · Middle · Grades 6–8	Public	346	48.6 Lower 50%	47% Math proficiency	346
27	Shelby Elementary School Shelby · Elementary · Grades PK–5	Public	242	58.8 Top 50%	57% Math proficiency	242
28	Wilsonville Elementary School Wilsonville · Elementary · Grades PK–5	Public	229	73.0 Top 25%	77% Math proficiency	229

Oak Mountain High School in Birmingham leads the 2025 list of largest schools in Shelby County with Enrollment 1,648. Of the 28 schools shown, 28 are public.

For the full picture see the wider Alabama largest schools rankings, every school on the Shelby County 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 Shelby County?

Oak Mountain High School in Birmingham, Alabama ranks first among largest schools in Shelby County with Enrollment 1,648 (Enrollment: 1,648).

How are largest schools in Shelby County 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.