Wine Country Times

Casa Grande High School had the highest enrollment among Sonoma County schools, welcoming 1,710 students during the 2022-23 school year, according to the California Department of Education.

Of all the students welcomed in the 2022-23 school year, 52% of them were boys, 47.8% were girls, and 0.2% identified themselves as non-binary or did not specify their gender.

The most represented ethnicity among Casa Grande High School students was white, accounting for 43% of the student population.

Among the 154 schools in Sonoma County, Santa Rosa High School ranked second in enrollment numbers with 1,682 students, while Rancho Cotate High School welcomed 1,611 students and ranked third in the 2022-23 school year.

Casa Grande High School is part of Petaluma Joint Union High School District, which roughly covers schools within Sonoma County and has a main office in Petaluma.

In the previous school year, Santa Rosa High School had the highest number of students among Sonoma County schools.

In the last decade, enrollment in California elementary and secondary schools rose by at least 5%, while high school enrollment dropped 5%.

However, overall enrollment in California public schools is sliding, and predicted by the Public Policy Institute of California to drop another 8% by the 2031-32 school year.

School name	City	Total School Enrollment
Casa Grande High School	Petaluma	1,710
Santa Rosa High School	Santa Rosa	1,682
Rancho Cotate High School	Rohnert Park	1,611
Windsor High School	Windsor	1,603
Maria Carrillo High School	Santa Rosa	1,591
Montgomery High School	Santa Rosa	1,572
West County High School	Sebastopol	1,466
Piner High School	Santa Rosa	1,361
Petaluma High School	Petaluma	1,220
Cali Calmecac Language Academy	Windsor	1,168
Sonoma Valley High School	Sonoma	1,127
Elsie Allen High School	Santa Rosa	1,055
Cesar Chavez Language Academy	Santa Rosa	853
Lawrence E. Jones Middle School	Rohnert Park	791
Rincon Valley Middle School	Santa Rosa	786
Kenilworth Junior High School	Petaluma	779
Oak Grove Elementary/Willowside Middle School	Santa Rosa	742
Windsor Middle School	Windsor	725
Herbert Slater Middle School	Santa Rosa	716
Yulupa Elementary School	Santa Rosa	579
Sheppard Elementary School	Santa Rosa	573
Evergreen Elementary School	Rohnert Park	558
Mattie Washburn Elementary School	Santa Rosa	514
Healdsburg High School	Healdsburg	511
Jefferson Elementary School	Cloverdale	500
Loma Vista Immersion Academy	Petaluma	489
Penngrove Elementary School	Penngrove	481
Marguerite Hahn Elementary School	Rohnert Park	468
Santa Rosa Middle School	Santa Rosa	466
Roseland Creek Elementary School	Santa Rosa	463
Wright Charter	Santa Rosa	457
Brooks Elementary School	Windsor	453
Mary Collins Charter School at Cherry Valley	Petaluma	452
Petaluma Junior High School	Petaluma	451
Hidden Valley Elementary School	Santa Rosa	449
Gravenstein Elementary School	Sebastopol	448
Robert L. Stevens Elementary School	Santa Rosa	448
Taylor Mountain Elementary School	Santa Rosa	444
Thomas Page Academy	Cotati	444
Monte Vista Elementary School	Rohnert Park	438
Sonoma Mountain Elementary School	Petaluma	437
Santa Rosa French-American Charter (SRFACS)	Santa Rosa	436
Hilliard Comstock Middle School	Santa Rosa	434
Roseland Elementary School	Santa Rosa	431
Technology Middle School	Rohnert Park	426
Meadow View Elementary School	Santa Rosa	418
Bellevue Elementary School	Santa Rosa	417
Manzanita Elementary Charter	Santa Rosa	412
Helen M. Lehman Elementary School	Santa Rosa	411
San Miguel Elementary School	Santa Rosa	407
Sequoia Elementary School	Santa Rosa	406
Washington	Cloverdale	401
Corona Creek Elementary School	Petaluma	397
Healdsburg Elementary School	Healdsburg	397
Mark West Elementary School	Santa Rosa	397
Village Elementary Charter	Santa Rosa	393
Altimira Middle School	Sonoma	392
Santa Rosa Charter School for the Arts	Santa Rosa	391
Cloverdale High School	Cloverdale	390
McKinley Elementary School	Petaluma	388
John B. Riebli Elementary School	Santa Rosa	384
Grant Elementary School	Petaluma	381
John Reed Primary School	Rohnert Park	378
Steele Lane Elementary School	Santa Rosa	378
Meadow Elementary School	Petaluma	377
Madrone Elementary School	Santa Rosa	373
Strawberry Elementary School	Santa Rosa	372
J. X. Wilson Elementary School	Santa Rosa	371
Binkley Elementary Charter	Santa Rosa	365
Flowery Elementary School	Sonoma	365
James Monroe Elementary School	Santa Rosa	361
Whited Elementary Charter	Santa Rosa	348
Austin Creek Elementary School	Santa Rosa	336
Adele Harrison Middle School	Sonoma	335
Proctor Terrace Elementary School	Santa Rosa	335
Technology High School	Rohnert Park	329
Spring Lake Charter	Santa Rosa	328
La Tercera Elementary School	Petaluma	325
McNear Elementary School	Petaluma	311
Luther Burbank Elementary School	Santa Rosa	308
Kawana Springs Elementary School	Santa Rosa	307
Brook Hill Elementary School	Santa Rosa	303
Abraham Lincoln Elementary School	Santa Rosa	299
Apple Blossom	Sebastopol	296
Miwok Valley Elementary Charter	Petaluma	293
Old Adobe Elementary Charter	Petaluma	288
Healdsburg Junior High School	Healdsburg	285
Hillcrest Middle School	Sebastopol	278
Jack London Elementary School	Santa Rosa	275
Prestwood Elementary School	Sonoma	262
El Verano Elementary School	Sonoma	257
Sassarini Elementary School	Sonoma	251
McDowell Elementary School	Petaluma	245
Richard Crane Elementary School	Rohnert Park	243
Sunridge Charter	Sebastopol	243
Ridgway High (Continuation)	Santa Rosa	233
Park Side Elementary School	Sebastopol	231
University Elementary at La Fiesta	Rohnert Park	224
Wilson Elementary School	Petaluma	218
Orchard View	Sebastopol	216
Albert F. Biella Elementary School	Santa Rosa	215
Sonoma County Special Education	Santa Rosa	214
Guerneville Elementary (Charter)	Guerneville	213
Twin Hills Charter Middle School	Sebastopol	204
Valley Vista Elementary School	Petaluma	194
Brook Haven Middle School	Sebastopol	193
Cinnabar Charter	Petaluma	186
Forestville Academy	Forestville	170
Liberty Elementary School	Petaluma	161
South County Consortium	Petaluma	154
Salmon Creek School - A. Charter	Occidental	144
Dunham Charter	Petaluma	138
West Side Elementary School	Healdsburg	137
Two Rock Elementary School	Petaluma	132
Santa Rosa Accelerated Charter	Santa Rosa	128
Petaluma Accelerated Charter	Petaluma	123
Dunbar Elementary School	Glen Ellen	117
Mark West Charter	Santa Rosa	116
Kenwood Elementary School	Kenwood	113
Alexander Valley Elementary School	Healdsburg	112
Geyserville New Technology Academy	Geyserville	106
Rincon Valley Partnership	Santa Rosa	105
Geyserville Elementary School	Geyserville	96
San Antonio High (Continuation)	Petaluma	86
North Bay Met Academy	Windsor	80
Oak Grove Elementary School	Sebastopol	78
Laguna High School	Forestville	75
El Camino High School	Rohnert Park	60
Monte Rio Elementary School	Monte Rio	59
Sonoma County Alternative Education Programs	Santa Rosa	58
Horicon Elementary School	Annapolis	56
Liberty Primary School	Petaluma	56
Forestville Elementary School	Forestville	54
Bridges Community Based School North County Consortium	Windsor	52
Harmony Elementary School	Occidental	51
Creekside High School	Sonoma	50
Gravenstein First	Sebastopol	41
Marce Becerra Academy	Healdsburg	36
Carpe Diem High (Continuation)	Petaluma	31
West Sonoma County Consortium	Sebastopol	29
Learning House	Santa Rosa	25
Valley Oaks High (Alternative)	Petaluma	25
Bodega Bay Elementary School	Bodega Bay	24
Windsor Oaks Academy	Windsor	24
Sonoma Mountain High (Continuation)	Petaluma	23
Cinnabar Elementary School	Petaluma	21
Montgomery Elementary School	Cazadero	21
Sonoma County Court	Santa Rosa	21
Johanna Echols-Hansen High (Continuation)	Cloverdale	20
Guerneville Primary School	Guerneville	18
Fort Ross Elementary School	Cazadero	14
Buena Vista High School	Geyserville	9
Dunham Elementary School	Petaluma	9
Kashia Elementary School	Stewarts Point	8