Schools by Reading Proficiency in Ontario (2025)

Schools ranked by the share of tested students proficient or above in reading/language arts (EDFacts, all students). Listed with official data; 33 schools in Ontario, California. Rank positions shown on each profile are within United States and California.

#	School	Sector	Reading · math	Success Index (US)	Key result	Students
1	Edison Elementary Ontario · Elementary · Grades K–8	Public	68% · 60%	54.8 Top 50%	60% Math proficiency	736
2	Colony High Ontario · High · Grades 9–12	Public	60% · 35%	38.7 Lower 50%	35% Math proficiency	2,109
3	Ranch View Elementary Ontario · Elementary · Grades K–6	Public	59% · 48%	50.5 Top 50%	48% Math proficiency	738
4	Liberty Elementary Ontario · Elementary · Grades K–6	Public	55% · 51%	44.6 Lower 50%	51% Math proficiency	578
5	Vista Grande Elementary Ontario · Elementary · Grades K–6	Public	55% · 49%	42.6 Lower 50%	49% Math proficiency	358
6	Grace Yokley Junior High Ontario · Middle · Grades 7–8	Public	55% · 33%	38.8 Lower 50%	33% Math proficiency	606
7	Ontario High Ontario · High · Grades 9–12	Public	51% · 27%	28.1 Lower 50%	27% Math proficiency	1,994
8	Chaffey High Ontario · High · Grades 9–12	Public	51% · 20%	24.8 Lower 50%	20% Math proficiency	3,127
9	Elderberry Elementary Ontario · Elementary · Grades K–6	Public	50% · 52%	37.7 Lower 50%	52% Math proficiency	544
10	Sultana Elementary Ontario · Elementary · Grades K–6	Public	50% · 41%	33.7 Lower 50%	41% Math proficiency	589
11	Vineyard Elementary Ontario · Elementary · Grades K–8	Public	49% · 36%	29.9 Lower 50%	36% Math proficiency	562
12	Central Language Academy Ontario · Elementary · Grades K–8	Public	49% · 27%	31.8 Lower 50%	27% Math proficiency	736
13	Mountain View Elementary Ontario · Elementary · Grades K–6	Public	48% · 36%	35.2 Lower 50%	36% Math proficiency	564
14	Oaks Middle Ontario · Middle · Grades 7–8	Public	48% · 31%	28.8 Lower 50%	31% Math proficiency	668
15	Woodcrest Junior High Ontario · Middle · Grades 7–8	Public	47% · 34%	32.5 Lower 50%	34% Math proficiency	324
16	Richard Haynes Elementary Ontario · Elementary · Grades K–6	Public	42% · 34%	24.9 Lower 50%	34% Math proficiency	641
17	Ontario Center Ontario · Elementary · Grades K–5	Public	42% · 31%	28.1 Lower 50%	31% Math proficiency	585
18	Creek View Elementary Ontario · Elementary · Grades K–6	Public	42% · 30%	29.0 Lower 50%	30% Math proficiency	566
19	Corona Elementary Ontario · Elementary · Grades K–6	Public	41% · 38%	25.9 Lower 50%	38% Math proficiency	414
20	Mission Elementary Ontario · Elementary · Grades K–6	Public	41% · 37%	25.7 Lower 50%	37% Math proficiency	571
21	Euclid Elementary Ontario · Elementary · Grades K–6	Public	41% · 35%	25.3 Lower 50%	35% Math proficiency	572
22	Hawthorne Elementary Ontario · Elementary · Grades K–6	Public	40% · 29%	22.9 Lower 50%	29% Math proficiency	549
23	Lincoln Elementary Ontario · Elementary · Grades K–6	Public	39% · 37%	26.3 Lower 50%	37% Math proficiency	530
24	Del Norte Elementary Ontario · Elementary · Grades K–6	Public	39% · 30%	21.2 Lower 50%	30% Math proficiency	428
25	Vina Danks Middle Ontario · Middle · Grades 7–8	Public	38% · 23%	23.3 Lower 50%	23% Math proficiency	544
26	Bon View Elementary Ontario · Elementary · Grades K–6	Public	37% · 27%	18.4 Lower 50%	27% Math proficiency	598
27	Arroyo Elementary Ontario · Elementary · Grades K–8	Public	35% · 29%	23.1 Lower 50%	29% Math proficiency	493
28	El Camino Elementary Ontario · Elementary · Grades K–6	Public	35% · 29%	21.0 Lower 50%	29% Math proficiency	476
29	Ray Wiltsey Middle Ontario · Middle · Grades 6–8	Public	35% · 25%	20.0 Lower 50%	25% Math proficiency	727
30	Levi H. Dickey Elementary Ontario · Elementary · Grades K–6	Public	35% · 23%	17.7 Lower 50%	23% Math proficiency	413
31	Mariposa Elementary Ontario · Elementary · Grades K–6	Public	33% · 24%	15.4 Lower 50%	24% Math proficiency	537
32	De Anza Middle Ontario · Middle · Grades 7–8	Public	32% · 26%	22.0 Lower 50%	26% Math proficiency	510
33	Berlyn Elementary Ontario · Elementary · Grades K–6	Public	30% · 22%	13.4 Lower 50%	22% Math proficiency	639

Edison Elementary in Ontario leads the 2025 list of schools by reading proficiency in Ontario with Reading · math 68% · 60%. Of the 33 schools shown, 33 are public.

For the full picture see the wider California schools by reading proficiency rankings, every school on the Ontario page, or the comparison tool to put a shortlist side by side.

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Frequently asked questions

What is the best reading results school in Ontario?

Edison Elementary in Ontario, California ranks first among schools by reading proficiency in Ontario with Reading · math 68% · 60% (Enrollment: 736).

How are schools by reading proficiency in Ontario ranked?

Schools ranked by the share of tested students proficient or above in reading/language arts (EDFacts, all students). Figures are the most recent published by the national authority and matched to the school directory.

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.