Schools in Ontario, California (2025)

34 schools · 24,870 students · 34 public · median Enrollment 572.

Ontario, in California, has 34 schools in United States's 2025 data, together educating about 24,870 students. By level there are 25 elementary, 6 middle, 3 high; by sector 34 public.

The median Enrollment across Ontario's schools is 572, above the California median of 503. Students enrolled in the latest NCES directory year.

34 of the 34 schools qualify for the Success Index (US). The highest-scoring is Edison Elementary (54.8, top 50% of elementary schools nationally), followed by Ranch View Elementary (50.5, top 50% of elementary schools nationally), and Park View Elementary (49.8, lower 50% of elementary schools nationally). Scores are percentiles within school type, so compare an elementary school with other elementary schools.

The largest schools are Chaffey High (3,127 students), Colony High (2,109 students), Ontario High (1,994 students).

Best elementary schools in Ontario Best middle schools in Ontario Best traditional public schools in Ontario Schools by Math Proficiency in Ontario Schools by Reading Proficiency in Ontario Lowest Student–Teacher Ratio in Ontario Largest Schools in Ontario

Ranked schools in Ontario

Ordered by Success Index (US). Rank positions shown on each profile are within United States and California.

#	School	Sector	Success Index (US)	Key result	Students
1	Edison Elementary Ontario · Elementary · Grades K–8	Public	54.8 Top 50%	60% Math proficiency	736
2	Ranch View Elementary Ontario · Elementary · Grades K–6	Public	50.5 Top 50%	48% Math proficiency	738
3	Park View Elementary Ontario · Elementary · Grades K–6	Public	49.8 Lower 50%	34.4% Free/reduced-price lunch	844
4	Liberty Elementary Ontario · Elementary · Grades K–6	Public	44.6 Lower 50%	51% Math proficiency	578
5	Vista Grande Elementary Ontario · Elementary · Grades K–6	Public	42.6 Lower 50%	49% Math proficiency	358
6	Grace Yokley Junior High Ontario · Middle · Grades 7–8	Public	38.8 Lower 50%	33% Math proficiency	606
7	Colony High Ontario · High · Grades 9–12	Public	38.7 Lower 50%	35% Math proficiency	2,109
8	Elderberry Elementary Ontario · Elementary · Grades K–6	Public	37.7 Lower 50%	52% Math proficiency	544
9	Mountain View Elementary Ontario · Elementary · Grades K–6	Public	35.2 Lower 50%	36% Math proficiency	564
10	Sultana Elementary Ontario · Elementary · Grades K–6	Public	33.7 Lower 50%	41% Math proficiency	589
11	Woodcrest Junior High Ontario · Middle · Grades 7–8	Public	32.5 Lower 50%	34% Math proficiency	324
12	Central Language Academy Ontario · Elementary · Grades K–8	Public	31.8 Lower 50%	27% Math proficiency	736
13	Vineyard Elementary Ontario · Elementary · Grades K–8	Public	29.9 Lower 50%	36% Math proficiency	562
14	Creek View Elementary Ontario · Elementary · Grades K–6	Public	29.0 Lower 50%	30% Math proficiency	566
15	Oaks Middle Ontario · Middle · Grades 7–8	Public	28.8 Lower 50%	31% Math proficiency	668
16	Ontario Center Ontario · Elementary · Grades K–5	Public	28.1 Lower 50%	31% Math proficiency	585
17	Ontario High Ontario · High · Grades 9–12	Public	28.1 Lower 50%	27% Math proficiency	1,994
18	Lincoln Elementary Ontario · Elementary · Grades K–6	Public	26.3 Lower 50%	37% Math proficiency	530
19	Corona Elementary Ontario · Elementary · Grades K–6	Public	25.9 Lower 50%	38% Math proficiency	414
20	Mission Elementary Ontario · Elementary · Grades K–6	Public	25.7 Lower 50%	37% Math proficiency	571
21	Euclid Elementary Ontario · Elementary · Grades K–6	Public	25.3 Lower 50%	35% Math proficiency	572
22	Richard Haynes Elementary Ontario · Elementary · Grades K–6	Public	24.9 Lower 50%	34% Math proficiency	641
23	Chaffey High Ontario · High · Grades 9–12	Public	24.8 Lower 50%	20% Math proficiency	3,127
24	Vina Danks Middle Ontario · Middle · Grades 7–8	Public	23.3 Lower 50%	23% Math proficiency	544
25	Arroyo Elementary Ontario · Elementary · Grades K–8	Public	23.1 Lower 50%	29% Math proficiency	493
26	Hawthorne Elementary Ontario · Elementary · Grades K–6	Public	22.9 Lower 50%	29% Math proficiency	549
27	De Anza Middle Ontario · Middle · Grades 7–8	Public	22.0 Lower 50%	26% Math proficiency	510
28	Del Norte Elementary Ontario · Elementary · Grades K–6	Public	21.2 Lower 50%	30% Math proficiency	428
29	El Camino Elementary Ontario · Elementary · Grades K–6	Public	21.0 Lower 50%	29% Math proficiency	476
30	Ray Wiltsey Middle Ontario · Middle · Grades 6–8	Public	20.0 Lower 50%	25% Math proficiency	727
31	Bon View Elementary Ontario · Elementary · Grades K–6	Public	18.4 Lower 50%	27% Math proficiency	598
32	Levi H. Dickey Elementary Ontario · Elementary · Grades K–6	Public	17.7 Lower 50%	23% Math proficiency	413
33	Mariposa Elementary Ontario · Elementary · Grades K–6	Public	15.4 Lower 50%	24% Math proficiency	537
34	Berlyn Elementary Ontario · Elementary · Grades K–6	Public	13.4 Lower 50%	22% Math proficiency	639

Compare the top 4 schools in Ontario side by side →

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Frequently asked questions

What is the best school in Ontario?

Edison Elementary is the highest-ranked school in Ontario with a Success Index (US) of 54.8 out of 100 (Top 50% of elementary schools in United States).

How many schools are in Ontario?

Ontario has 34 schools (25 elementary, 6 middle, 3 high) educating 24,870 students in 2025.

What is the typical Enrollment in Ontario?

The median Enrollment across schools in Ontario is 572. Students enrolled in the latest NCES directory year.

Schools in Ontario, California (2025)

Ranked schools in Ontario

Other places in California

Is your child on grade level in reading and math?

Frequently asked questions