Largest Schools in Colton Joint Unified (2025)

Schools with the highest enrollment. Ranked by the Success Index (US) from official American data; 25 schools in Colton Joint Unified, California. Rank positions shown on each profile are within United States and California.

#	School	Sector	Enrollment	Success Index (US)	Key result	Students
1	Bloomington High Bloomington · High · Grades 9–12	Public	1,794	18.8 Lower 50%	14% Math proficiency	1,794
2	Colton High Colton · High · Grades 9–12	Public	1,729	22.8 Lower 50%	16% Math proficiency	1,729
3	Grand Terrace High Sch at the Ray Abril Jr. Edal Complex Grand Terrace · High · Grades 9–12	Public	1,647	33.9 Lower 50%	22% Math proficiency	1,647
4	Colton Middle Colton · Middle · Grades 7–8	Public	870	13.3 Lower 50%	21% Math proficiency	870
5	Terrace Hills Middle Grand Terrace · Middle · Grades 7–8	Public	852	18.2 Lower 50%	20% Math proficiency	852
6	Joe Baca Bloomington · Middle · Grades 7–8	Public	705	16.0 Lower 50%	19% Math proficiency	705
7	Alice Birney Elementary Colton · Elementary · Grades K–6	Public	681	10.8 Lower 50%	15% Math proficiency	681
8	Grand Terrace Elementary Grand Terrace · Elementary · Grades K–6	Public	654	29.0 Lower 50%	35% Math proficiency	654
9	Terrace View Elementary Grand Terrace · Elementary · Grades K–6	Public	625	40.4 Lower 50%	41% Math proficiency	625
10	Ruth Grimes Elementary Bloomington · Elementary · Grades K–6	Public	606	37.8 Lower 50%	46% Math proficiency	606
11	Paul Rogers Elementary Colton · Elementary · Grades K–6	Public	602	19.5 Lower 50%	25% Math proficiency	602
12	Ulysses Grant Elementary Colton · Elementary · Grades K–6	Public	589	24.3 Lower 50%	34% Math proficiency	589
13	Abraham Lincoln Elementary Colton · Elementary · Grades K–6	Public	587	18.6 Lower 50%	28% Math proficiency	587
14	Crestmore Elementary Bloomington · Elementary · Grades K–6	Public	586	25.3 Lower 50%	34% Math proficiency	586
15	Sycamore Hills Elementary Fontana · Elementary · Grades K–6	Public	565	30.3 Lower 50%	36% Math proficiency	565
16	Gerald A. Smith Elementary Bloomington · Elementary · Grades K–6	Public	565	26.3 Lower 50%	35% Math proficiency	565
17	Ruth O. Harris Middle Bloomington · Middle · Grades 7–8	Public	562	15.7 Lower 50%	16% Math proficiency	562
18	Mary B. Lewis Elementary Bloomington · Elementary · Grades K–6	Public	548	15.0 Lower 50%	21% Math proficiency	548
19	Reche Canyon Elementary Colton · Elementary · Grades K–6	Public	547	24.5 Lower 50%	26% Math proficiency	547
20	Cooley Ranch Elementary Colton · Elementary · Grades K–6	Public	530	18.0 Lower 50%	24% Math proficiency	530
21	Walter Zimmerman Elementary Bloomington · Elementary · Grades K–6	Public	512	23.8 Lower 50%	31% Math proficiency	512
22	William McKinley Elementary Colton · Elementary · Grades K–6	Public	495	18.3 Lower 50%	25% Math proficiency	495
23	Woodrow Wilson Elementary Colton · Elementary · Grades K–6	Public	465	17.3 Lower 50%	27% Math proficiency	465
24	Jurupa Vista Elementary Fontana · Elementary · Grades K–6	Public	388	20.7 Lower 50%	22% Math proficiency	388
25	Michael D'Arcy Elementary Fontana · Elementary · Grades K–6	Public	336	26.2 Lower 50%	32% Math proficiency	336

Bloomington High in Bloomington leads the 2025 list of largest schools in Colton Joint Unified with Enrollment 1,794. Of the 25 schools shown, 25 are public.

For the full picture see the wider California largest schools rankings, every school on the Colton Joint Unified page, or the comparison tool to put a shortlist side by side.

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Frequently asked questions

What is the best largest school in Colton Joint Unified?

Bloomington High in Bloomington, California ranks first among largest schools in Colton Joint Unified with Enrollment 1,794 (Enrollment: 1,794).

How are largest schools in Colton Joint Unified ranked?

Schools with the highest enrollment. Only schools eligible for the Success Index (US) are included; the index is shown alongside for context.

Are these 2025 rankings official?

No. They are computed by Success Tutoring from official American data (Urban Institute Education Data Portal (NCES CCD, EDFacts); NCES Common Core of Data). States set their own assessments and proficiency cut scores, so proficiency rates are most comparable within a state. Use the state rankings for like-for-like comparisons.