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28 schools in Colton Joint Unified

California · 18,397 students · 4 cities

Public schools in the Colton Joint Unified system total 28 schools across California, with roughly 18,397 students enrolled (19 elementary, 4 middle, and 4 high).

4-year change in Colton Joint Unified

SY 2020-21 vs SY 2024-25
Total enrollment
18,397
-2,128 (-10%) vs SY 2020-21
School count
27
0 (0%) vs SY 2020-21
Source: NCES Common Core of Data, enrollment-weighted demographic averages

How Colton Joint Unified ranks

Among districts
MeasureThis districtIn CaliforniaIn the US
State test proficiency
ranked highest first
28.2%#426 of 534N/A
Enrollment
ranked largest first
18,397#66 of 587#448 of 9,234
Number of schools
ranked most first
27#59 of 587N/A
Students per teacher
ranked fewest first
20.9:1#206 of 587#8,500 of 9,044
Free or reduced-price lunch share
ranked highest first
84.9%#95 of 587#947 of 8,164
Diversity index
ranked most diverse first
22.1%#459 of 530#5,489 of 6,853
Districts need at least 2 schools and 500 students to be ranked. Test proficiency is ranked within the state only, since each state gives a different test. Each rank links to the full list.

Inside Colton Joint Unified

State test results across the district's 25 scored schools run from Ruth Grimes Elementary at 44.3% proficient to Alice Birney Elementary at 17.1%, a gap of 27.2 points. That is the 242nd widest gap among 458 California districts with four or more scored schools.

Since 2017-18, the 27 district schools that reported both years went from 22,497 to 18,397 students (down 18%) and from 984 to 881 full-time teachers (down 10%), as of 2024-25.

Proficient is the average share of students meeting the state standard across each school's state tests in 2023-24 and 2024-25; schools with fewer than 100 students and schools serving specialized populations are left out. Staffing figures come from the NCES Common Core of Data and count only schools that reported students and teachers in both years.

About Colton Joint Unified

Colton Joint Unified maintains 28 public schools across California, collectively educateing roughly 18,397 students.

Looking at the level breakdown, Colton Joint Unified comprises 19 elementary, 4 middle, 4 high schools, and 1 combined or other.

On a per-school basis, Colton Joint Unified runs about 657 students per school, 14% above the state mean of roughly 578.

Trend over the past 4 years. Combined enrollment now sits at 18,397 students, fell 10% from the 20,525 reported in SY 2020-21.

On this page, the community for Colton Joint Unified discusses school events, board meetings, and seasonal calendars. Discussions cut across districts, schools, and grade levels.

Frequently asked questions

How many schools are in Colton Joint Unified?
Colton Joint Unified operates 28 public K-12 schools in California, serving approximately 18,397 students.
What is the mix of elementary, middle, and high schools in Colton Joint Unified?
Colton Joint Unified includes 19 elementary schools, 4 middle schools, 4 high schools, and 1 combined-grade school.
What is the largest school in Colton Joint Unified?
Bloomington High is the largest public school in Colton Joint Unified by enrollment, with approximately 1,794 students.
What grade levels does Colton Joint Unified serve?
Colton Joint Unified serves students from kindergarten through grade 12 across 28 schools.
What cities does Colton Joint Unified serve?
Colton Joint Unified operates schools in Bloomington, Colton, Grand Terrace, Fontana across California.