Total enrollment
29
-747 (-96%) vs SY 2017-18
2 schools in Petrolia
California · Public K-12
In Petrolia, public K-12 schools number 2 and serve approximately 29 students across 1 elementary and 1 high.
7-year change in Petrolia
SY 2017-18 vs SY 2024-25School count
2
-1 (-33%) vs SY 2017-18
Source: NCES Common Core of Data, enrollment-weighted demographic averages
| Name | Level | Grades | Enrollment |
|---|---|---|---|
| Mattole Elementary | Elementary | KG-08 | 27 |
| Mattole Triple Junction High | High | 09-12 | 2 |
About Petrolia
Across Petrolia, California, 2 public schools teaches about 29 students between them.
In terms of grade levels, the city spans 1 elementary, and 1 high.
Average school size in Petrolia is around 15 students, 97% meaningfully below the California average of about 578.
Looking at the last 7 years. Across the same 7-year window, public-school enrollment fell 96%: 776 students in SY 2017-18 versus 29 in SY 2024-25. Over that span, Petrolia closed 1 school, going from 3 to 2.
On this page, the community for Petrolia discusses enrollment trends, district policy changes, and bus-route updates. Anyone with firsthand knowledge of these schools is welcome to weigh in.