What is the largest public school in the US?

Commonwealth Charter Academy Cs in Harrisburg, PA is the largest public school with 29,320 students enrolled.

How many students attend the largest US public schools?

The 50 largest US public schools each enroll over 4,573 students. These mega-schools span elementary through high school levels across multiple states.

50 Largest Public Schools

Reviewed by PlainSchools Editorial, K12 Schools Editorial Team · June 4, 2026

Ranked by student enrollment. Data from NCES CCD 2022-23.

#	School	District	State	Enrollment
1.	Commonwealth Charter Academy Cs other	Commonwealth Charter Academy CS	PA	29,320
2.	Texas Virtual Academy at Hallsville other	HALLSVILLE ISD	TX	19,731
3.	Ohio Virtual Academy other	Ohio Virtual Academy	OH	15,339
4.	Epic Charter School High School high	EPIC VIRTUAL CHARTER	OK	14,517
5.	Epic Charter School Elementary other	EPIC VIRTUAL CHARTER	OK	14,019
6.	Highlands Community Charter other	Highlands Community Charter District	CA	11,713
7.	Lone Star Online Academy elementary	ROSCOE COLLEGIATE ISD	TX	11,686
8.	Pennsylvania Cyber Cs other	Pennsylvania Cyber CS	PA	10,178
9.	Georgia Cyber Academy other	State Charter Schools- Georgia Cyber Academy	GA	9,952
10.	Texas Connections Academy at Houston other	HOUSTON ISD	TX	8,641
11.	Interior Distance Education of Alaska (Idea) other	Galena City School District	AK	7,876
12.	Alabama Connections Academy other	Limestone County	AL	7,822
13.	Nebo Online School other	Nebo District	UT	7,791
14.	Idaho Home Learning Academy other	ONEIDA COUNTY DISTRICT	ID	7,764
15.	River Springs Charter other	River Springs Charter District	CA	7,703
16.	Blue Ridge Academy other	Blue Ridge Academy District	CA	7,657
17.	Visions in Education other	Visions In Education District	CA	7,460
18.	Georgia Connections Academy other	State Charter Schools- Georgia Connections Academy	GA	7,148
19.	Pacific Coast Academy other	Pacific Coast Academy District	CA	6,760
20.	Mission Vista Academy other	Mission Vista Academy District	CA	6,724
21.	North Star Academy Charter School other	North Star Academy Charter School	NJ	6,714
22.	Goal Academy high	El Paso County Colorado School District 49	CO	6,693
23.	Team Academy Charter School other	TEAM Academy Charter School	NJ	6,406
24.	Primavera - Online other	American Virtual Academy (79461)	AZ	6,378
25.	Alternative Education Academy other	Alternative Education Academy	OH	6,276
26.	Sc Connections Academy other	Charter Institute at Erskine	SC	6,152
27.	Alabama Virtual Academy at Eufaula City Schools other	Eufaula City	AL	6,104
28.	Digital Academy of Florida other	HENDRY	FL	6,069
29.	Heartland Charter other	Heartland Charter District	CA	5,970
30.	Granada Hills Charter other	Granada Hills Charter District	CA	5,927
31.	Brooklyn Technical High School high	NEW YORK CITY GEOGRAPHIC DISTRICT #13	NY	5,848
32.	Florida Connections Academy other	HILLSBOROUGH	FL	5,748
33.	Reach Cyber Cs other	Reach Cyber CS	PA	5,721
34.	Cabrillo Point Academy other	Cabrillo Point Academy District	CA	5,706
35.	California Virtual Academy @ Los Angeles other	California Virtual Academy @ Los Angeles District	CA	5,705
36.	Indiana Connections Academy other	Indiana Connections Academy	IN	5,376
37.	Indiana Gateway Digital Academy other	Clarksville Community School Corp	IN	5,318
38.	Conroe H S high	CONROE ISD	TX	5,252
39.	Carmel High School high	Carmel Clay Schools	IN	5,239
40.	Allen H S high	ALLEN ISD	TX	5,206
41.	Ohio Connections Academy Inc other	Ohio Connections Academy Inc	OH	5,191
42.	Reading Shs high	Reading SD	PA	4,879
43.	Brentwood High School high	BRENTWOOD UNION FREE SCHOOL DISTRICT	NY	4,816
44.	Broken Arrow Hs high	BROKEN ARROW	OK	4,802
45.	Adlai E Stevenson High School high	Adlai E Stevenson HSD 125	IL	4,758
46.	Alexandria City High School high	Alexandria City Public Schools	VA	4,655
47.	Lane Technical High School other	City of Chicago SD 299	IL	4,604
48.	Cypress Bay High School high	BROWARD	FL	4,579
49.	Arkansas Connections Academy High other	ARKANSAS CONNECTIONS ACADEMY	AR	4,575
50.	Francis Lewis High School high	NEW YORK CITY GEOGRAPHIC DISTRICT #26	NY	4,573