County directory · California · 2026–27
School districts in Alameda County, CA
Alameda County has 20 regular public school districts, enrolling 202,608 students in 2024–25. The largest is Oakland Unified (33,838 students, 17% of the county), followed by Fremont Unified and Hayward Unified. All 20 offer kindergarten. California's kindergarten cutoff: turn 5 by September 1.
The 20 districts, largest first
| District and office | Grades | Schools | Students | Kindergarten | District office contact |
|---|---|---|---|---|---|
| Oakland Unified 1011 Union St, Oakland | K–12 | 89 | 33,838 | 3,858 | (510) 879-8000 |
| Fremont Unified 4210 Technology Dr., Fremont | K–12 | 44 | 33,134 | 3,118 | (510) 657-2350 |
| Hayward Unified 24411 Amador St., Hayward | K–12 | 28 | 17,377 | 1,623 | (510) 784-2600 |
| Pleasanton Unified 5758 W Las Positas Blvd., Pleasanton | K–12 | 17 | 13,338 | 975 | (925) 462-5500 |
| Livermore Valley Joint Unified 685 East Jack London Blvd., Livermore also serves Contra Costa County | K–12 | 18 | 12,968 | 1,364 | (925) 606-3200 |
| Dublin Unified 7471 Larkdale Ave., Dublin | K–12 | 16 | 12,808 | 1,091 | (925) 828-2551 |
| Chico Unified 1163 East Seventh St., Chico also serves Butte County | K–12 | 22 | 12,266 | 1,140 | (530) 891-3000 |
| New Haven Unified 34200 Alvarado-Niles Rd., Union City | K–12 | 13 | 10,069 | 1,032 | (510) 471-1100 |
| Castro Valley Unified 4400 Alma Ave., Castro Valley | K–12 | 16 | 9,570 | 933 | (510) 537-3000 |
| Alameda Unified 2060 Challenger Dr, Alameda | K–12 | 16 | 9,292 | 943 | (510) 337-7000 |
| Berkeley Unified 2020 Bonar St., Berkeley | K–12 | 18 | 9,162 | 803 | (510) 644-6150 |
| San Leandro Unified 2600 Teagarden St., San Leandro | K–12 | 13 | 8,866 | 942 | (510) 667-3500 |
| San Lorenzo Unified 15510 Usher St., San Lorenzo | K–12 | 17 | 7,957 | 761 | (510) 317-4600 |
| Newark Unified 5715 Musick Ave., Newark | K–12 | 10 | 4,666 | 499 | (510) 818-4103 |
| Albany City Unified 1216 Solano Ave., Albany | K–12 | 6 | 3,694 | 342 | (510) 558-3750 |
| Piedmont City Unified 760 Magnolia Ave., Piedmont | K–12 | 7 | 2,455 | 239 | (510) 594-2614 |
| Emery Unified 4727 San Pablo Ave., Emeryville | K–12 | 3 | 590 | 61 | (510) 601-4906 |
| Alameda County Office of Education 313 West Winton Ave., Hayward | K–12 | 5 | 304 | 0 | (510) 887-0152 |
| Sunol Glen Unified 11601 Main St., Sunol | K–8 | 1 | 240 | 32 | (925) 862-2026 |
| Mountain House Elementary 3950 Mountain House Rd., Byron | K–8 | 1 | 14 | 3 | (209) 835-2283 |
Alameda County at a glance
Together the 20 districts run 360 schools from offices in 19 towns. The smallest by enrollment is Mountain House Elementary, with 14 students; the median Alameda County district has 9,162. By grade span: 18 K–12 and 2 K–8.
Kindergarten in 2024–25, counting the 19 districts that report a K grade: 19,759 children. The biggest kindergarten was Oakland Unified's, with 3,858; Fremont Unified had 3,118, and the smallest, Mountain House Elementary, had 3.
Alameda County holds 20 of California's 987 regular districts (2.0%) and 3.9% of its 5,201,297 public school students, ranking 19th of 58 counties by number of districts and 8th by enrollment. By size, 13 enroll 5,000 or more, 3 enroll 1,000 to 4,999 and 4 have fewer than 1,000 students, and the average school here has about 563 students.
2 districts reach past the county line: Livermore Valley Joint Unified (into Contra Costa County) and Chico Unified (into Butte County).
Which district am I in?
Each district draws its own attendance zones, so your home address decides it, and with 2 of Alameda County's districts crossing county lines the county alone won't. There is no address lookup here; ask the district. Each one's own site:
Oakland Unified · Fremont Unified · Hayward Unified · Pleasanton Unified · Livermore Valley Joint Unified · Dublin Unified · Chico Unified · New Haven Unified · Castro Valley Unified · Alameda Unified · Berkeley Unified · San Leandro Unified · San Lorenzo Unified · Newark Unified · Albany City Unified · Piedmont City Unified · Emery Unified · Alameda County Office of Education · Sunol Glen Unified · Mountain House Elementary
What grade will my child be in?
More in California
Every California district by county · California kindergarten cutoff
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