County directory · California · 2026–27

School districts in Marin County, CA

Marin County has 18 regular public school districts, enrolling 29,610 students in 2024–25. The largest is Novato Unified (7,247 students, 24% of the county), followed by Tamalpais Union High and San Rafael City Elementary. 16 of the 18 offer kindergarten. California's kindergarten cutoff: turn 5 by September 1.

The 18 districts, largest first

School districts in Marin County, CA by 2024–25 enrollment
District and officeGradesSchoolsStudentsKindergartenDistrict office contact
Novato Unified
1015 Seventh St., Novato
K–12157,247644
(415) 897-4201
Tamalpais Union High
395 Doherty Dr., Larkspur
9–1254,542—
(415) 945-1000
San Rafael City Elementary
310 Nova Albion Way, San Rafael
K–894,439709
(415) 492-3233
San Rafael City High
310 Nova Albion Way, San Rafael
9–1232,706—
(415) 492-3233
Mill Valley Elementary
411 Sycamore Ave., Mill Valley
K–862,313386
(415) 389-7700
Miller Creek Elementary
380 Nova Albion Way, San Rafael
K–841,755202
(415) 492-3700
Ross Valley Elementary
100 Shaw Dr., San Anselmo
K–851,694250
(415) 454-2162
Larkspur-Corte Madera
230 Doherty Dr., Larkspur
K–831,169132
(415) 927-6960
Reed Union Elementary
277-A Karen Way, Tiburon
K–831,043162
(415) 381-1112
Kentfield Elementary
800 College Ave., Kentfield
K–821,019111
(415) 458-5130
Shoreline Unified
10 John St., Tomales
also serves Sonoma County
K–12547351
(707) 878-2266
Ross Elementary
9 Lagunitas Rd., Ross
K–8134034
(415) 457-2705
Marin County Office of Education
1111 Las Gallinas Ave., San Rafael
K–12329236
(415) 472-4110
Sausalito Marin City
200 Phillips Dr., Marin City
K–8126537
(415) 332-3190
Lagunitas Elementary
One Lagunitas School Rd., San Geronimo
K–8116118
(415) 488-4118
Bolinas-Stinson Union
125 Olema-Bolinas Rd., Bolinas
K–8110916
(415) 868-1603
Nicasio
5555 Nicasio Valley Rd., Nicasio
K–81346
(415) 662-2184
Laguna Joint Elementary
2657 Chileno Valley Rd., Petaluma
also serves Sonoma County
K–6292
(707) 762-6051

Marin County at a glance

Together the 18 districts run 70 schools from offices in 14 towns. The smallest by enrollment is Laguna Joint Elementary, with 9 students; the median Marin County district has 1,019. By grade span: 12 K–8, 3 K–12, 2 9–12 and 1 K–6. Without kindergarten: Tamalpais Union High (9–12) and San Rafael City High (9–12).

Kindergarten in 2024–25, counting the 16 districts that report a K grade: 2,796 children. The biggest kindergarten was San Rafael City Elementary's, with 709; Novato Unified had 644, and the smallest, Laguna Joint Elementary, had 2.

Marin County holds 18 of California's 987 regular districts (1.8%) and 0.6% of its 5,201,297 public school students, ranking 22nd of 58 counties by number of districts and 28th by enrollment. By size, 1 enroll 5,000 or more, 9 enroll 1,000 to 4,999 and 8 have fewer than 1,000 students, and the average school here has about 423 students.

2 districts reach past the county line: Shoreline Unified (into Sonoma County) and Laguna Joint Elementary (into Sonoma County).

Which district am I in?

Each district draws its own attendance zones, so your home address decides it, and with 2 of Marin 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:

Novato Unified · Tamalpais Union High · San Rafael City Elementary · San Rafael City High · Mill Valley Elementary · Miller Creek Elementary · Ross Valley Elementary · Larkspur-Corte Madera · Reed Union Elementary · Kentfield Elementary · Shoreline Unified · Ross Elementary · Marin County Office of Education · Sausalito Marin City · Lagunitas Elementary · Bolinas-Stinson Union · Nicasio · Laguna Joint Elementary

What grade will my child be in?

↓ Tap Calculate to see the grade
Most US states use a September 1 cutoff. Year-stamped for the 2026–27 school year.

More in California

Every California district by county · California kindergarten cutoff

More California county directories: Kings County (12) · San Mateo County (24) · Santa Barbara County (21) · Sutter County (13) · Tehama County (15) · Tulare County (45)

Sources

District list, grades, school counts and websites: NCES Common Core of Data (CCD) LEA Universe Directory, SY 2025-26 (preliminary, v0a), published July 1, 2026. Regular public districts only (NCES LEA types 1 and 2); charter-only, state-run and regional service agencies are not listed.
Enrollment: NCES CCD LEA Membership, SY 2024-25 (v1a), published December 29, 2025 — the newest year NCES has released.
Counties: NCES EDGE Public LEA Geocodes, SY 2024-25 (district office location) and NCES EDGE Geographic Relationship Files 2025 (grf25_lea_county) (counties each district boundary covers).
Downloaded October 20, 2026. Spot something off? Email [email protected].