Chester Junior/Senior High
Test scores
CAASPP 2023-24 . % met or exceeded standardWhat this means: On the CAASPP, California's statewide test, about 44 of every 100 students at this school read and write at grade level and about 15 of 100 do math at grade level. Across all California schools, those numbers are about 47 and 36. Reading and writing scores are down about 2 points since 2014, while math scores are down about 6 points.
BeatsExpectations
Demographically-adjusted score · methodologyWhat this means: About 30% of students here test proficient in math and reading, below the roughly 57% typical for California schools with a similar share of low-income students. BeatsExpectations compares each school with others at the same poverty level, not by raw scores, so a school lands here when its results trail those comparable schools, which is not the same as having low scores. A higher-scoring school can still fall in this tier if similar schools score higher still.
7-year change
SY 2017-18 vs SY 2024-25About Chester Junior/Senior High
Chester Junior/Senior High is a very small high school in Chester, California, run under Plumas Unified. The school hosts 124 students in grades 7 through 12. Compared to the state average of about 838 students per school, that is 85% leaner than typical.
Within Plumas Unified, which oversees 9 schools and 1,685 students, Chester Junior/Senior High is one campus in the system.
On demographics, Chester Junior/Senior High reports that the largest single group is White, at 71% of enrollment; the rest looks like 13% Hispanic, 13% multiracial. By comparison, Plumas County as a whole is about 84% White, so the school skews considerably less White than its surroundings.
On the income-and-resources front, Chester Junior/Senior High shows 12 full-time-equivalent teachers, putting the student-to-teacher ratio at about 10.1:1. The state averages around 18.2:1, so this campus is tighter than the state norm typical. Around 37% of the student body qualifies for free or reduced-price meals, a commonly cited indicator of low-income enrollment. That share is south of Plumas County's rate of about 54%.
With demographic context factored in, Chester Junior/Senior High falls in the UNDERPERFORMING tier of the BeatsExpectations residual. Given its student profile, a typical campus would land near 57.4%; this one comes in at 29.7%, -27.7 points off the demographic line.
In the surrounding community, ACS estimates for Plumas County put the typical household earns roughly $66,031 per year, about 23% of the adult population holds a bachelor's degree or above, and the poverty rate sits near 6%. Across Plumas County's 15 public schools (combined enrollment of about 2,049 students), Chester Junior/Senior High is one campus in the mix.
The closest other public school is Chester Elementary, roughly 0.2 miles away. On composite proficiency, Chester Junior/Senior High comes 2nd of 4 in the immediate cluster, higher than the nearby-schools average of 27.8%.
Chester Junior/Senior High operates from a rural location.
Trend over the last 7 years. Chester Junior/Senior High's enrollment has ticked down 28% since 2018, when it stood at 173 (now 124). Class-load math has narrowed: from 15.3:1 in 2018 to 10.1:1 in 2025.
Inside the community feed, recent activity here tends to focus on pickup logistics, teacher feedback, and after-school programs. Members of the school community can share what they know.
Plumas County at a glance
View full county profileQuick facts
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