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Iglesia Ni Cristo chapel CAPhoto: Westpacificmovement · CC BY-SA 4.0
B−
Schools in Montclair · Chaffey Joint Union High School District, Ontario-Montclair School District

Montclair’s public schools outscore 53% of California districts

The grade covers the two public school districts serving Montclair, from kindergarten through graduation, on state tests and graduation. On the state math tests, 27% of Montclair’s students scored proficient, below the California average (33%). Each state writes its own tests, so this is the one TownRatings grade compared within California, not nationally.

#458of 847 California townsK–12Where will my kid go?

From California state tests taken in spring 2022, when 97% of students in the tested grades sat them, and the class of 2023’s four-year graduation rate, as reported to the U.S. Department of Education.

Reading proficiency
48%
▲ 1 pts vs CA 47%
2021–22
Math proficiency
27%
▼ 6 pts vs CA 33%
2021–22
Graduate on time
90%
▲ 4 pts vs CA 86%
class of 2023
Spent per student
$18.6K
▼ 12% vs CA $21.2K
FY2024 · Chaffey Joint Union High
Students per teacher
22.8
CA 21.6 · larger classes
Schools in town
12
7,608 students on the public path
In brief

Montclair’s schools, in brief

Better than its incomes would predict

Among the 540 California towns with household incomes within a quarter of Montclair’s, its schools beat 58%, higher than their 53% against all the state’s districts. The grade ↓

Above the state in reading, below in math

Reading proficiency is 48% and math 27% across both districts in spring 2022, against 47% and 33% statewide; 90% of the class of 2023 graduated in four years, against 86%. Test scores ↓

Spending and class size

Chaffey Joint Union High spends $18,582 per student and Ontario-Montclair $24,222, against $21,206 across California (FY2024). Neither counts toward the grade. Districts ↓

Choice beyond the district

International Montessori School (private) is in town. Every school ↓

Written from the figures on this page. Tests are from 2021–22, graduation from the class of 2023; each school’s own letter uses 2020–21 results.

The School Grade

What’s behind Montclair’s grade

B Test scoresC+ Graduation

B−: better than 53% of California school districts, #458 of 847 California towns. Graduation is above the California average; test scores are below it.

California school districts we grade (1,872)Better than 53%
Lower resultsHigher results
California towns with similar household incomes (540)Better than 58%
B−BA fairly firm grade. Ordinary sampling error in 17,944 test results and a graduating class of 5,776 could put Montclair anywhere from B− to B. The tests are from spring 2022, when 97% of Montclair’s students in the tested grades sat them (17,939 in math, 17,950 in reading).

How TownRatings grades schools →

Where will my kid go?

Pick a grade. These are the public schools that serve Montclair, with each school’s own grade.

The path, start to finish
K–68 schoolsDepends on your addressNo scores
7–82 middle schoolsDepends on your addressNo scores
9–12Montclair HighChaffey Joint Union High School DistrictA−

Montclair runs its own schools through grade 8 (Ontario-Montclair School District). From grade 9, students attend the Chaffey Joint Union High School District, shared with Chino, Fontana, Ontario, Rancho Cucamonga and Upland. To confirm the school for a specific address, ask the district.

Two districts serve Montclair

Spending and class size are shown but don’t count toward the grade. Each district’s own page has every school.

Test scores · 2021–22

Close to the state in reading

Reading · 9–12, Chaffey Joint Union High School District66%
State average 46.7% · 5350 students tested
Math · 9–12, Chaffey Joint Union High School District31%
State average 33.1% · 5350 students tested
Reading · K–8, Ontario-Montclair School District40%
State average 46.7% · 12600 students tested
Math · K–8, Ontario-Montclair School District26%
State average 33.1% · 12589 students tested

Montclair vs. its neighbors

Schools grades for the California towns that share Montclair’s borders.

Schools next door
TownSchoolsMain districts
MontclairB−Ontario-Montclair K–8 · Chaffey Joint Union High 9–12
UplandB+Upland Unified K–12 · Chaffey Joint Union High 9–12

Every school in Montclair

12 schools. Each public school’s letter compares its own 2020–21 reading and math results with California’s other public schools (the newest school-level results we have).

District schools in Montclairby address
Private schoolstuition; no state tests, so no grade

Questions about Montclair’s schools

Are Montclair’s schools good?

They sit near the middle of California: the public schools Montclair children attend outscore 53% of California’s school districts on tests and graduation, a B− Schools grade, #458 of 847 California towns. Among towns with similar incomes they beat 58%. Tests are from 2021–22, graduation from the class of 2023.

What school district is Montclair in?

Two districts: Ontario-Montclair School District runs grades K–8, and Chaffey Joint Union High School District runs grades 9–12, shared with Chino, Fontana, Ontario, Rancho Cucamonga and Upland.

Where do Montclair kids go to high school?

Montclair High, with 2,515 students; its own test results earn an A−.

What is Montclair’s graduation rate?

90% of the class of 2023 in Chaffey Joint Union High School District graduated in four years, against 86% across California.

How much does Montclair spend per student?

$18,582 in Chaffey Joint Union High School District and $24,222 in Ontario-Montclair School District (FY2024), against $21,206 across California. Spending doesn’t count toward the grade.

Are there private schools in Montclair?

Yes: International Montessori School (nonsectarian, grades 1–8, 18 students).

Parents talk

What Montclair families are saying about school.

Town Square →
Start the conversation

Looking for colleges? Colleges near Montclair → They have their own page.

School data: state test results (2021–22, with participation) and four-year graduation rates (class of 2023) reported to the U.S. Department of Education (EDFacts via ED Data Express); each school’s own letter uses its 2020–21 results (EDFacts via the Urban Institute); schools and enrollment from NCES (2024–25; private schools 2023–24); spending from the Census Bureau’s school finance survey (FY2024). The School Grade is our own summary, graded within California. Stars are from neighbors.