Largest Schools in San Antonio (2025)

Schools with the highest enrollment. Ranked by the Success Index (US) from official American data; 100 schools in San Antonio, Texas. Rank positions shown on each profile are within United States and Texas.

#	School	Sector	Enrollment	Success Index (US)	Key result	Students
1	Reagan H S San Antonio · High · Grades 9–12	Public	3,403	76.3 Top 25%	61% Math proficiency	3,403
2	East Central H S San Antonio · High · Grades 9–12	Public	3,362	23.8 Lower 50%	20% Math proficiency	3,362
3	Johnson H S San Antonio · High · Grades 9–12	Public	3,196	78.0 Top 10%	78% Math proficiency	3,196
4	Brennan H S San Antonio · High · Grades 9–12	Public	2,965	66.3 Top 25%	66% Math proficiency	2,965
5	Harlan H S San Antonio · High · Grades 9–12	Public	2,778	71.4 Top 25%	75% Math proficiency	2,778
6	Clark H S San Antonio · High · Grades 9–12	Public	2,750	68.2 Top 25%	65% Math proficiency	2,750
7	Taft H S San Antonio · High · Grades 9–12	Public	2,670	64.3 Top 50%	53% Math proficiency	2,670
8	Brandeis H S San Antonio · High · Grades 9–12	Public	2,657	69.8 Top 25%	55% Math proficiency	2,657
9	Marshall H S San Antonio · High · Grades 9–12	Public	2,634	49.7 Top 50%	57% Math proficiency	2,634
10	Sotomayor H S San Antonio · High · Grades 9–12	Public	2,627	60.0 Top 50%	30.6% Free/reduced-price lunch	2,627
11	Madison H S San Antonio · High · Grades 9–12	Public	2,616	52.5 Top 50%	49% Math proficiency	2,616
12	Stevens H S San Antonio · High · Grades 9–12	Public	2,546	40.6 Lower 50%	37% Math proficiency	2,546
13	Warren H S San Antonio · High · Grades 9–12	Public	2,542	61.7 Top 50%	61% Math proficiency	2,542
14	Roosevelt H S San Antonio · High · Grades 9–12	Public	2,431	33.3 Lower 50%	31% Math proficiency	2,431
15	Karen Wagner H S San Antonio · High · Grades 9–12	Public	2,423	41.0 Lower 50%	52% Math proficiency	2,423
16	Holmes H S San Antonio · High · Grades 9–12	Public	2,422	44.7 Lower 50%	58% Math proficiency	2,422
17	Southwest H S San Antonio · High · Grades 9–12	Public	2,363	23.8 Lower 50%	12% Math proficiency	2,363
18	Churchill H S San Antonio · High · Grades 9–12	Public	2,308	51.6 Top 50%	32% Math proficiency	2,308
19	Legacy of Educational Excellence H S San Antonio · High · Grades 9–12	Public	2,285	45.6 Lower 50%	47% Math proficiency	2,285
20	South San Antonio H S San Antonio · High · Grades 9–12	Public	2,190	32.2 Lower 50%	43% Math proficiency	2,190
21	Jay H S San Antonio · High · Grades 9–12	Public	2,118	29.4 Lower 50%	26% Math proficiency	2,118
22	Pieper H S San Antonio · High · Grades 9–12	Public	2,093	69.8 Top 25%	14.3% Free/reduced-price lunch	2,093
23	Macarthur H S San Antonio · High · Grades 9–12	Public	2,033	52.7 Top 50%	57% Math proficiency	2,033
24	Southside H S San Antonio · High · Grades 9–12	Public	1,772	30.3 Lower 50%	45% Math proficiency	1,772
25	Jefferson H S San Antonio · High · Grades 9–12	Charter	1,706	29.7 Lower 50%	38% Math proficiency	1,706
26	Harlandale H S San Antonio · High · Grades 9–12	Public	1,652	39.4 Lower 50%	48% Math proficiency	1,652
27	Lanier H S San Antonio · High · Grades 9–12	Public	1,620	20.8 Lower 50%	31% Math proficiency	1,620
28	Bernal Middle San Antonio · Middle · Grades 6–8	Public	1,617	68.7 Top 25%	64% Math proficiency	1,617
29	Brackenridge H S San Antonio · High · Grades 9–12	Public	1,593	37.2 Lower 50%	50% Math proficiency	1,593
30	Veterans Memorial H S San Antonio · High · Grades 9–12	Public	1,579	41.2 Lower 50%	32% Math proficiency	1,579
31	Alamo Heights H S San Antonio · High · Grades 9–12	Public	1,569	66.5 Top 25%	38% Math proficiency	1,569
32	McCollum H S San Antonio · High · Grades 9–12	Public	1,502	36.9 Lower 50%	44% Math proficiency	1,502
33	Folks Middle San Antonio · Middle · Grades 6–8	Public	1,497	70.3 Top 25%	63% Math proficiency	1,497
34	Highlands H S San Antonio · High · Grades 9–12	Public	1,478	28.2 Lower 50%	38% Math proficiency	1,478
35	Burbank H S San Antonio · High · Grades 9–12	Charter	1,405	19.6 Lower 50%	22% Math proficiency	1,405
36	Straus Middle San Antonio · Middle · Grades 6–8	Public	1,363	62.7 Top 50%	34.3% Free/reduced-price lunch	1,363
37	Garcia Middle San Antonio · Middle · Grades 6–8	Public	1,360	81.0 Top 10%	75% Math proficiency	1,360
38	Edison H S San Antonio · High · Grades 9–12	Public	1,360	25.3 Lower 50%	34% Math proficiency	1,360
39	Lopez Middle San Antonio · Middle · Grades 6–8	Public	1,294	81.8 Top 10%	83% Math proficiency	1,294
40	Briscoe Middle San Antonio · Middle · Grades 6–8	Public	1,263	73.0 Top 25%	63% Math proficiency	1,263
41	East Central Heritage Middle San Antonio · Middle · Grades 6–8	Public	1,251	27.7 Lower 50%	32% Math proficiency	1,251
42	Davenport H S San Antonio · High · Grades 9–12	Public	1,233	71.8 Top 25%	29.4% Free/reduced-price lunch	1,233
43	Kallison El San Antonio · Elementary · Grades PK–5	Public	1,221	65.7 Top 50%	63% Math proficiency	1,221
44	Rawlinson Middle San Antonio · Middle · Grades 6–8	Public	1,161	69.2 Top 25%	60% Math proficiency	1,161
45	Bradley Middle San Antonio · Middle · Grades 6–8	Public	1,148	63.4 Top 50%	58% Math proficiency	1,148
46	Legacy Middle San Antonio · Middle · Grades 6–8	Public	1,143	18.0 Lower 50%	19% Math proficiency	1,143
47	Pieper Ranch Middle San Antonio · Middle · Grades 6–8	Public	1,140	79.1 Top 25%	77% Math proficiency	1,140
48	Alamo Heights J H San Antonio · Middle · Grades 6–8	Public	1,123	77.5 Top 25%	70% Math proficiency	1,123
49	Luna Middle San Antonio · Middle · Grades 6–8	Public	1,114	54.1 Top 50%	46% Math proficiency	1,114
50	Hobby Middle San Antonio · Middle · Grades 6–8	Public	1,094	48.7 Lower 50%	48% Math proficiency	1,094
51	Basis San Antonio- Shavano Campus San Antonio · High · Grades 6–12	Charter	1,057	79.9 Top 10%	85% Math proficiency	1,057
52	Hill Middle San Antonio · Middle · Grades 6–8	Public	1,057	74.2 Top 25%	68% Math proficiency	1,057
53	Medina Valley Loma Alta Middle San Antonio · Middle · Grades 6–8	Public	1,046	57.2 Top 50%	57% Math proficiency	1,046
54	Zachry Middle San Antonio · Middle · Grades 6–8	Public	1,043	39.3 Lower 50%	38% Math proficiency	1,043
55	Jones Middle San Antonio · Middle · Grades 6–8	Public	1,035	29.3 Lower 50%	31% Math proficiency	1,035
56	Tejeda Middle San Antonio · Middle · Grades 6–8	Public	1,014	75.0 Top 25%	73% Math proficiency	1,014
57	Silos El San Antonio · Elementary · Grades PK–5	Public	1,011	36.9 Lower 50%	59.6% Free/reduced-price lunch	1,011
58	White Middle San Antonio · Middle · Grades 6–8	Public	1,000	40.9 Lower 50%	43% Math proficiency	1,000
59	John F Kennedy H S San Antonio · High · Grades 9–12	Public	998	23.4 Lower 50%	28% Math proficiency	998
60	Nimitz Middle San Antonio · Middle · Grades 6–8	Public	995	36.0 Lower 50%	41% Math proficiency	995
61	Henry Metzger Middle San Antonio · Middle · Grades 6–8	Public	991	22.1 Lower 50%	29% Math proficiency	991
62	Jefferson Middle San Antonio · Middle · Grades 6–8	Public	990	68.7 Top 25%	62% Math proficiency	990
63	Rudder Middle San Antonio · Middle · Grades 6–8	Public	961	37.5 Lower 50%	36% Math proficiency	961
64	Eisenhower Middle San Antonio · Middle · Grades 6–8	Public	951	39.4 Lower 50%	41% Math proficiency	951
65	Jordan Middle San Antonio · Middle · Grades 6–8	Public	948	45.2 Lower 50%	42% Math proficiency	948
66	Luckey Ranch El San Antonio · Elementary · Grades PK–5	Public	945	49.9 Lower 50%	55% Math proficiency	945
67	Scarborough El San Antonio · Elementary · Grades PK–5	Public	925	67.2 Top 50%	61% Math proficiency	925
68	Bulverde Creek San Antonio · Elementary · Grades PK–5	Public	916	69.4 Top 25%	70% Math proficiency	916
69	Health Careers H S San Antonio · High · Grades 9–12	Public	904	86.9 Top 5%	97.5% Math proficiency	904
70	Harris Middle San Antonio · Middle · Grades 6–8	Public	903	53.3 Top 50%	51% Math proficiency	903
71	Stinson Middle San Antonio · Middle · Grades 6–8	Public	898	58.3 Top 50%	49% Math proficiency	898
72	Mead El San Antonio · Elementary · Grades PK–5	Public	887	28.7 Lower 50%	39% Math proficiency	887
73	Boldt El San Antonio · Elementary · Grades PK–5	Public	882	59.4 Top 50%	57% Math proficiency	882
74	Tomlinson El San Antonio · Elementary · Grades PK–5	Public	875	66.0 Top 50%	26.3% Free/reduced-price lunch	875
75	Roan Forest El San Antonio · Elementary · Grades PK–5	Public	873	76.7 Top 25%	78% Math proficiency	873
76	Coker El San Antonio · Elementary · Grades PK–5	Public	861	47.9 Lower 50%	46% Math proficiency	861
77	Krueger Middle San Antonio · Middle · Grades 6–8	Public	857	43.2 Lower 50%	48% Math proficiency	857
78	Steubing Ranch El San Antonio · Elementary · Grades PK–5	Public	856	58.9 Top 50%	57% Math proficiency	856
79	Legacy Traditional School - Alamo Ranch San Antonio · Elementary · Grades PK–8	Charter	855	29.9 Lower 50%	32% Math proficiency	855
80	Larkspur El San Antonio · Elementary · Grades PK–5	Public	849	24.4 Lower 50%	30% Math proficiency	849
81	Sst Alamo San Antonio · Elementary · Grades PK–6	Charter	848	64.0 Top 50%	75% Math proficiency	848
82	Vale Middle San Antonio · Middle · Grades 6–8	Public	846	48.4 Lower 50%	46% Math proficiency	846
83	Memorial H S San Antonio · High · Grades 9–12	Public	846	31.6 Lower 50%	44% Math proficiency	846
84	Potranco El San Antonio · Elementary · Grades PK–5	Public	839	59.9 Top 50%	56% Math proficiency	839
85	Woodridge El San Antonio · Elementary · Grades 1–5	Public	833	80.0 Top 10%	64% Math proficiency	833
86	Schenck El San Antonio · Elementary · Grades PK–5	Public	828	42.5 Lower 50%	47% Math proficiency	828
87	Ross Middle San Antonio · Middle · Grades 6–8	Public	828	37.8 Lower 50%	40% Math proficiency	828
88	Bush Middle San Antonio · Middle · Grades 6–8	Public	823	80.9 Top 10%	76% Math proficiency	823
89	Henderson El San Antonio · Elementary · Grades PK–5	Public	819	65.3 Top 50%	60% Math proficiency	819
90	Robert G Cole Middle/High School San Antonio · High · Grades 6–12	Public	810	79.6 Top 10%	61% Math proficiency	810
91	Neff Middle San Antonio · Middle · Grades 6–8	Public	810	41.9 Lower 50%	42% Math proficiency	810
92	Colonel Miguel Menchaca Early Childhood Center San Antonio · Elementary · Grades PK–K	Public	809	21.0 Lower 50%	87.4% Free/reduced-price lunch	809
93	FT Sam Houston El San Antonio · Elementary · Grades PK–5	Public	807	68.4 Top 25%	53% Math proficiency	807
94	Cambridge El San Antonio · Elementary · Grades 1–5	Public	806	64.7 Top 50%	48% Math proficiency	806
95	Stone Oak El San Antonio · Elementary · Grades PK–5	Public	804	77.2 Top 25%	68% Math proficiency	804
96	Ladera El San Antonio · Elementary · Grades PK–5	Public	804	54.2 Top 50%	49.5% Free/reduced-price lunch	804
97	Houston H S San Antonio · High · Grades 9–12	Public	800	21.1 Lower 50%	25% Math proficiency	800
98	Basis San Antonio Pri- Medical Center Campus San Antonio · Elementary · Grades K–5	Charter	799	75.5 Top 25%	79% Math proficiency	799
99	Francis R Scobee Middle San Antonio · Middle · Grades 6–8	Public	797	40.8 Lower 50%	43% Math proficiency	797
100	Mireles El San Antonio · Elementary · Grades PK–5	Public	789	70.0 Top 25%	61% Math proficiency	789

Reagan H S in San Antonio leads the 2025 list of largest schools in San Antonio with Enrollment 3,403. Of the 100 schools shown, 94 are public, 6 are charter.

For the full picture see the wider Texas largest schools rankings, every school on the San Antonio 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 San Antonio?

Reagan H S in San Antonio, Texas ranks first among largest schools in San Antonio with Enrollment 3,403 (Enrollment: 3,403).

How are largest schools in San Antonio 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.