For the 2026 school year, there are 5 public schools serving 1,826 students in Old Adobe Union School District. This district's average testing ranking is 7/10, which is in the top 50% of public schools in California.
Public Schools in Old Adobe Union School District have an average math proficiency score of 39% (versus the California public school average of 34%), and reading proficiency score of 43% (versus the 47% statewide average).
Minority enrollment is 54% of the student body (majority Hispanic), which is less than the California public school average of 80% (majority Hispanic).
Overview
This School District
This State (CA)
# Schools
5 Schools
10,360 Schools
# Students
1,826 Students
5,826,337 Students
# Teachers
81 Teachers
267,972 Teachers
Student-Teacher Ratio
23:1
23:1
Student By Grade
District Rank
Old Adobe Union School District, which is ranked #720 of all 1,908 school districts in California (based off of combined math and reading proficiency testing data) for the 2022-2023 school year.
Overall District Rank
#686 out of 1932 school districts
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
39%
34%
Reading/Language Arts Test Scores (% Proficient)
44%
47%
Science Test Scores (% Proficient)
25%
29%
Students by Ethnicity:
Diversity Score
0.59
0.63
% American Indian
1%
1%
% Asian
3%
12%
% Hispanic
44%
56%
% Black
1%
5%
% White
46%
20%
% Hawaiian
n/a
n/a
% Two or more races
5%
6%
All Ethnic Groups
District Revenue and Spending
The revenue/student of $17,130 in this school district is less than the state median of $19,976. The school district revenue/student has grown by 10% over four school years.
The school district's spending/student of $20,039 is higher than the state median of $18,397. The school district spending/student has grown by 31% over four school years.
Total Revenue
$31 MM
$116,387 MM
Spending
$37 MM
$107,188 MM
Revenue / Student
$17,130
$19,976
Spending / Student
$20,039
$18,397
Best Old Adobe Union School District Public Schools (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Sonoma Mountain Elementary School
Charter School
(Math: 61% | Reading: 66%)
Rank:
Rank:
9/
Top 20%10
1900 Rainier Cir.
Petaluma, CA 94954
(707) 765-4305
Petaluma, CA 94954
(707) 765-4305
Gr: K-6 | 451 students Student-teacher ratio: 27:1 Minority enrollment: 30%
Rank: #22.
Old Adobe Elementary Charter
Charter School
(Math: 45-49% | Reading: 50-54%)
Rank:
Rank:
8/
Top 30%10
2856 Adobe Rd.
Petaluma, CA 94954
(707) 765-4301
Petaluma, CA 94954
(707) 765-4301
Gr: K-6 | 295 students Student-teacher ratio: 23:1 Minority enrollment: 33%
Rank: #33.
Loma Vista Immersion Academy
Charter School
(Math: 39% | Reading: 30-34%)
Rank:
Rank:
5/
Bottom 50%10
207 Maria Dr.
Petaluma, CA 94954
(707) 765-4302
Petaluma, CA 94954
(707) 765-4302
Gr: K-6 | 468 students Student-teacher ratio: 22:1 Minority enrollment: 77%
Rank: #44.
La Tercera Elementary School
(Math: 30% | Reading: 30-34%)
Rank:
Rank:
5/
Bottom 50%10
1600 Albin Way
Petaluma, CA 94954
(707) 765-4303
Petaluma, CA 94954
(707) 765-4303
Gr: K-6 | 313 students Student-teacher ratio: 24:1 Minority enrollment: 50%
Rank: #55.
Miwok Valley Elementary Charter
Charter School
(Math: 10-14% | Reading: 20-24%)
Rank:
Rank:
2/
Bottom 50%10
1010 Saint Francis Dr.
Petaluma, CA 94954
(707) 765-4304
Petaluma, CA 94954
(707) 765-4304
Gr: K-6 | 299 students Student-teacher ratio: 18:1 Minority enrollment: 79%
Frequently Asked Questions
How many schools belong to Old Adobe Union School District?
Old Adobe Union School District manages 5 public schools serving 1,826 students.
What is the rank of Old Adobe Union School District?
Old Adobe Union School District is ranked #720 out of 1,908 school districts in California (top 50%) based off of combined math and reading proficiency testing data for the 2022-2023 school year.
What is the racial composition of students in Old Adobe Union School District?
46% of Old Adobe Union School District students are White, 44% of students are Hispanic, 5% of students are Two or more races, 3% of students are Asian, 1% of students are American Indian, and 1% of students are Black.
What is the student/teacher ratio of Old Adobe Union School District?
Old Adobe Union School District has a student/teacher ratio of 23:1, which is higher than the California state average of 22:1.
What is Old Adobe Union School District's spending/student ratio?
The school district's spending/student of $20,039 is higher than the state median of $18,397. The school district spending/student has grown by 31% over four school years.
Recent Articles
Preventing Suicide in Schools: 2026 Guide for Educators
Learn updated 2026 strategies for preventing suicide in schools, including warning signs, intervention plans, and school-wide mental health support.
The Impact of Social Media on Students (2026 Update)
Explore the impact of social media on students in 2026, including academic, mental health, and safety insights for parents and educators.
