Old Adobe Union
Elementary school district, grades PK-06 · Sonoma County
54%of district students met the reading (ELA) standard, 2026
49%met the math standard, 2026
6schools on the map
1,901students enrolled in these schools, 2025-26
$829Kmedian typical home value across school ZIP codes
In spring 2026, 54% of Old Adobe Union students met the reading standard and 49% met the math standard. In reading, that is 9 points above the Sonoma County average and 5 points above the California average. District reading results in 2026 were 8 points higher than in 2024. Schools in Old Adobe Union are in Petaluma. District boundaries come from the California Department of Education's 2024-25 data; each school's attendance zone is set by the district.
District test scores, 2024 to 2026
| Subject | Spring 2024 | Spring 2025 | Spring 2026 | Change |
|---|---|---|---|---|
| Reading (ELA) | 45% | 52% | 54% | +8 pts |
| Math | 42% | 44% | 49% | +7 pts |
Compared with nearby averages
| Spring 2026 | Reading (ELA) | Math |
|---|---|---|
| Old Adobe Union | 54% | 49% |
| Sonoma County | 45% | 33% |
| California | 49% | 38% |
Elementary schools
| Rank | School | Reading (ELA) | Math | Typical home value (ZIP) |
|---|---|---|---|---|
| 1 | Sonoma Mountain Elementary CharterPetaluma · Grades K-6 | 80% | 77% | $829K |
| 2 | River Montessori Elementary Charter CharterPetaluma · Grades K-6 | 68% | 55% | $829K |
| 3 | La Tercera ElementaryPetaluma · Grades K-6 | 58% | 44% | $829K |
| 4 | Old Adobe Elementary Charter CharterPetaluma · Grades K-6 | 51% | 44% | $829K |
| 5 | Loma Vista Immersion Academy CharterPetaluma · Grades K-6 | 39% | 41% | $829K |
| 6 | Miwok Valley Elementary Charter CharterPetaluma · Grades P-6 | 32% | 30% | $829K |