Schools in Rialto Unified, California (2025)
28 schools · 22,787 students · 28 public · median Enrollment 609.
Rialto Unified, in California, has 28 schools in United States's 2025 data, together educating about 22,787 students. By level there are 19 elementary, 5 middle, 3 high, 1 other; by sector 28 public.
The median Enrollment across Rialto Unified's schools is 609, above the California median of 503. Students enrolled in the latest NCES directory year.
27 of the 28 schools qualify for the Success Index (US). The highest-scoring is W.J.C. Trapp Elementary (44.9, lower 50% of elementary schools nationally), followed by Nancy R. Kordyak Elementary (38.9, lower 50% of elementary schools nationally), and Samuel W. Simpson Elementary (38.6, 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 Rialto High (2,623 students), Eisenhower High (2,075 students), Wilmer Amina Carter High (1,951 students).
Schools are spread across 3 citys, with the most in Rialto (24), Colton (3), Fontana (1).
Ranked schools in Rialto Unified
Ordered by Success Index (US). Rank positions shown on each profile are within United States and California.
- 145W.J.C. Trapp ElementaryRialto · Public Elementary53% Math proficiency · 537 students
- 239Nancy R. Kordyak ElementaryFontana · Public Elementary40% Math proficiency · 718 students
- 339Samuel W. Simpson ElementaryRialto · Public Elementary42% Math proficiency · 638 students
- 433Wilmer Amina Carter HighRialto · Public High30% Math proficiency · 1,951 students
- 529Rialto HighRialto · Public High31% Math proficiency · 2,623 students
- 628Helen L. Dollahan ElementaryRialto · Public Elementary34% Math proficiency · 608 students
- 727A. H. Morgan ElementaryRialto · Public Elementary34% Math proficiency · 487 students
- 826Sam V. Curtis ElementaryRialto · Public Elementary32% Math proficiency · 702 students
- 926Elizabeth T. Hughbanks ElementaryRialto · Public Elementary27% Math proficiency · 436 students
- 1021Georgia F. Morris ElementaryColton · Public Elementary30% Math proficiency · 604 students
- 1121J.P. Kelley ElementaryRialto · Public Elementary27% Math proficiency · 661 students
- 1220Dr. Ernest Garcia ElementaryColton · Public Elementary32% Math proficiency · 608 students
- 1320Dr. Edward Fitzgerald ElementaryRialto · Public Elementary23% Math proficiency · 414 students
- 1420Eisenhower HighRialto · Public High19% Math proficiency · 2,075 students
- 1520Winn A. Myers ElementaryRialto · Public Elementary30% Math proficiency · 461 students
- 1619J. Calvin Boyd ElementaryRialto · Public Elementary24% Math proficiency · 569 students
- 1717Lida M. Henry ElementaryRialto · Public Elementary29% Math proficiency · 391 students
- 1817Ben F. Kolb MiddleRialto · Public Middle19% Math proficiency · 917 students
- 1917Ethel Kucera MiddleRialto · Public Middle17% Math proficiency · 978 students
- 2015Rialto MiddleRialto · Public Middle13% Math proficiency · 1,017 students
- 2113George H. Dunn ElementaryRialto · Public Elementary23% Math proficiency · 609 students
- 2213William G. Jehue MiddleColton · Public Middle18% Math proficiency · 1,444 students
- 2313Lena M. Preston ElementaryRialto · Public Elementary18% Math proficiency · 471 students
- 2412Levi Bemis ElementaryRialto · Public Elementary15% Math proficiency · 566 students
- 2512Charlotte N. Werner ElementaryRialto · Public Elementary19% Math proficiency · 739 students
- 2611Merle S. Casey ElementaryRialto · Public Elementary21% Math proficiency · 563 students
- 278Warren F. Frisbie MiddleRialto · Public Middle10% Math proficiency · 1,000 students
| # | School | Sector | Success Index (US) | Key result | Students |
|---|---|---|---|---|---|
| 1 | W.J.C. Trapp Elementary Rialto · Elementary · Grades K–5 | Public | 44.9 Lower 50% | 53% Math proficiency | 537 |
| 2 | Nancy R. Kordyak Elementary Fontana · Elementary · Grades K–5 | Public | 38.9 Lower 50% | 40% Math proficiency | 718 |
| 3 | Samuel W. Simpson Elementary Rialto · Elementary · Grades K–5 | Public | 38.6 Lower 50% | 42% Math proficiency | 638 |
| 4 | Wilmer Amina Carter High Rialto · High · Grades 9–12 | Public | 33.1 Lower 50% | 30% Math proficiency | 1,951 |
| 5 | Rialto High Rialto · High · Grades 9–12 | Public | 28.5 Lower 50% | 31% Math proficiency | 2,623 |
| 6 | Helen L. Dollahan Elementary Rialto · Elementary · Grades K–5 | Public | 28.0 Lower 50% | 34% Math proficiency | 608 |
| 7 | A. H. Morgan Elementary Rialto · Elementary · Grades K–5 | Public | 27.3 Lower 50% | 34% Math proficiency | 487 |
| 8 | Sam V. Curtis Elementary Rialto · Elementary · Grades K–5 | Public | 26.3 Lower 50% | 32% Math proficiency | 702 |
| 9 | Elizabeth T. Hughbanks Elementary Rialto · Elementary · Grades K–5 | Public | 25.5 Lower 50% | 27% Math proficiency | 436 |
| 10 | Georgia F. Morris Elementary Colton · Elementary · Grades K–5 | Public | 21.1 Lower 50% | 30% Math proficiency | 604 |
| 11 | J.P. Kelley Elementary Rialto · Elementary · Grades K–5 | Public | 20.8 Lower 50% | 27% Math proficiency | 661 |
| 12 | Dr. Ernest Garcia Elementary Colton · Elementary · Grades K–5 | Public | 20.3 Lower 50% | 32% Math proficiency | 608 |
| 13 | Dr. Edward Fitzgerald Elementary Rialto · Elementary · Grades K–5 | Public | 19.8 Lower 50% | 23% Math proficiency | 414 |
| 14 | Eisenhower High Rialto · High · Grades 9–12 | Public | 19.6 Lower 50% | 19% Math proficiency | 2,075 |
| 15 | Winn A. Myers Elementary Rialto · Elementary · Grades K–5 | Public | 19.5 Lower 50% | 30% Math proficiency | 461 |
| 16 | J. Calvin Boyd Elementary Rialto · Elementary · Grades K–5 | Public | 19.2 Lower 50% | 24% Math proficiency | 569 |
| 17 | Lida M. Henry Elementary Rialto · Elementary · Grades K–5 | Public | 17.4 Lower 50% | 29% Math proficiency | 391 |
| 18 | Ben F. Kolb Middle Rialto · Middle · Grades 6–8 | Public | 17.3 Lower 50% | 19% Math proficiency | 917 |
| 19 | Ethel Kucera Middle Rialto · Middle · Grades 6–8 | Public | 16.9 Lower 50% | 17% Math proficiency | 978 |
| 20 | Rialto Middle Rialto · Middle · Grades 6–8 | Public | 14.6 Lower 50% | 13% Math proficiency | 1,017 |
| 21 | George H. Dunn Elementary Rialto · Elementary · Grades K–5 | Public | 13.0 Lower 50% | 23% Math proficiency | 609 |
| 22 | William G. Jehue Middle Colton · Middle · Grades 6–8 | Public | 12.9 Lower 50% | 18% Math proficiency | 1,444 |
| 23 | Lena M. Preston Elementary Rialto · Elementary · Grades K–5 | Public | 12.8 Lower 50% | 18% Math proficiency | 471 |
| 24 | Levi Bemis Elementary Rialto · Elementary · Grades K–5 | Public | 12.1 Lower 50% | 15% Math proficiency | 566 |
| 25 | Charlotte N. Werner Elementary Rialto · Elementary · Grades K–5 | Public | 11.9 Lower 50% | 19% Math proficiency | 739 |
| 26 | Merle S. Casey Elementary Rialto · Elementary · Grades K–5 | Public | 11.0 Lower 50% | 21% Math proficiency | 563 |
| 27 | Warren F. Frisbie Middle Rialto · Middle · Grades 6–8 | Public | 8.3 Lower 50% | 10% Math proficiency | 1,000 |
Other schools in Rialto Unified
Schools without a rank: fewer than 60 students, no published Enrollment, or a school type that is not scored.
Compare the top 4 schools in Rialto Unified side by side →
Citys in Rialto Unified
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Frequently asked questions
What is the best school in Rialto Unified?
W.J.C. Trapp Elementary is the highest-ranked school in Rialto Unified with a Success Index (US) of 44.9 out of 100 (Lower 50% of elementary schools in United States).
How many schools are in Rialto Unified?
Rialto Unified has 28 schools (19 elementary, 3 high, 5 middle, 1 other) educating 22,787 students in 2025.
What is the typical Enrollment in Rialto Unified?
The median Enrollment across schools in Rialto Unified is 609. Students enrolled in the latest NCES directory year.