Elementary Schools in Rialto, California: 17 schools. Average score 6.3 points below the state. Here is what that number does — and doesn't — tell you.

Below Average2024–25 data17 schools · avg 38.6/100

Rialto, California has 17 ranked elementary schools with an average Scope Score of 38.6/100 — 6.3 points below the state average of 44.8. The highest-scoring school is Samuel W. Simpson Elementary at 66/100, where 30.4% of students exceed the state standard on the 2025 CAASPP assessment. Rialto schools average 12.9% exceeded standard (state: 21.3%) — this exceeded-vs-met distinction reveals whether schools push students beyond proficiency or pace toward it. Chronic absenteeism averages 22.8% (above the state average of 17.9%). Data source: California Department of Education CAASPP 2025, analyzed by SchoolScope.

Avg Scope Score

38.6

State avg: 44.8

SchoolScope composite

Score Range

35.3

31.2 – 66.5

Avg Exceeded %

12.9%

State avg: 21.3%

CDE CAASPP 2025

Chronic Absenteeism

22.8%

State avg: 17.9%

CDE Attendance 2025

Schools Ranked

With Scope Scores

Level	Schools	Avg Score	Exceeded	vs State
Elementary	17	Developing 38.6/100	12.9%	-6.3
High	5	Developing 44.4/100	14.4%	+0.7
Middle	4	Developing 32.3/100	10.4%	-10.4

How Rialto schools compare

Rialto has 17 ranked elementary schools with an average Scope Score of 38.6/100 — 6.3 points below the state average of 44.8 (CDE CAASPP 2025).

The top-ranked school is Samuel W. Simpson Elementary with a Scope Score of 66 and 30.4% of students exceeding standard.

Chronic absenteeism in Rialto averages 22.8% — above the state average of 17.9%.

How we score · Weighted composite of test performance, growth, and school climate · Full weights on the methodology page

School archetypes in Rialto

2 Culture First1 Strong All-Around14 Building Momentum

Archetypes are data-driven labels based on Scope Score dimensions. Learn more

For the data nerds

Every school in Rialto

ranked by Scope Score · 2024–25 CAASPP

#	School	Exceeded	Score
1	Samuel W. Simpson Elementary Rialto Unified Strong All-Around	30.4%	Solid 66/100
2	Eisenhower High Rialto Unified Building Momentum	21.4%	Solid 54/100
3	Wilmer Amina Carter High Rialto Unified Building Momentum	22.6%	Solid 53/100
4	Rialto High Rialto Unified Building Momentum	16.6%	Developing 46/100
5	W.J.C. Trapp Elementary Rialto Unified Culture First	20.5%	Developing 43/100
6	Zupanic Virtual Academy Rialto Unified Building Momentum	10.1%	Developing 42/100
7	Winn A. Myers Elementary Rialto Unified Building Momentum	12.4%	Developing 42/100
8	Dr. Edward Fitzgerald Elementary Rialto Unified Building Momentum	12.3%	Developing 41/100
9	A. H. Morgan Elementary Rialto Unified Building Momentum	11.0%	Developing 41/100
10	Levi Bemis Elementary Rialto Unified Building Momentum	13.4%	Developing 40/100
11	J. Calvin Boyd Elementary Rialto Unified Building Momentum	9.2%	Developing 38/100
12	Vista Norte Public Charter Helendale Elementary Building Momentum	18.2%	Developing 37/100
13	Sam V. Curtis Elementary Rialto Unified Building Momentum	14.5%	Developing 37/100
14	Rialto Middle Rialto Unified Building Momentum	11.3%	Developing 37/100
15	J.P. Kelley Elementary Rialto Unified Building Momentum	8.3%	Developing 37/100
16	Lida M. Henry Elementary Rialto Unified Building Momentum	12.1%	Developing 36/100
17	Ethel Kucera Middle Rialto Unified Building Momentum	11.0%	Developing 36/100
18	Ben F. Kolb Middle Rialto Unified Building Momentum	13.6%	Developing 36/100
19	George H. Dunn Elementary Rialto Unified Building Momentum	11.3%	Developing 35/100
20	Helen L. Dollahan Elementary Rialto Unified Culture First	14.3%	Developing 34/100
21	Charlotte N. Werner Elementary Rialto Unified Building Momentum	5.5%	Developing 33/100
22	Elizabeth T. Hughbanks Elementary Rialto Unified Building Momentum	7.3%	Developing 33/100
23	Merle S. Casey Elementary Rialto Unified Building Momentum	7.6%	Developing 32/100
24	Lena M. Preston Elementary Rialto Unified Building Momentum	10.8%	Developing 31/100
25	Dr. John H. Milor High Continuation Rialto Unified Building Momentum	1.4%	Needs Support 26/100
26	Warren F. Frisbie Middle Rialto Unified Building Momentum	5.7%	Needs Support 21/100

Source: CDE CAASPP 2025 · 26 schoolsMethodology · Explore all schools

Data source: California Department of Education · CAASPP 2024-25 · Methodology

Scores are SchoolScope's analysis of public data, not official CDE ratings. They represent one way of interpreting test results and should not be the sole basis for school decisions.

Private Schools in Rialto

Private schools don't participate in California's standardized testing (CAASPP) and cannot be scored or ranked. Showing enrollment, student-teacher ratio, and affiliation where available.

Calvary Chapel Rialto Christian School

Brethren · Grades Pre-K-8 · 164 students

14:1Private

St. Catherine of Siena School

Roman Catholic · Grades Pre-K-8 · 156 students

17:1Private

What Scope Scores can't tell you about Rialto

Numbers tell you whether students are clearing the bar. A school visit tells you whether they're happy doing it. These metrics are intentionally missing from the Scope Score: class sizes and student-teacher interaction quality; arts, music, athletics, and enrichment programs; teacher experience and turnover; campus safety and social-emotional support; parent and community engagement; quality of special education and gifted programs; how school zones and enrollment boundaries affect access. Full methodology

Frequently asked questions

Are the schools in Rialto good?

Rialto's 17 ranked elementary schools average a Scope Score of 38.6/100, which is 6.3 points below the state average. 12.9% of students exceed the state standard on average (state average: 21.3%). The Scope Score weights 6 dimensions for elementary schools: exceeded standard (38%), grade 3-to-5 growth (27%), met or exceeded (proficient) (20%), chronic absenteeism (5%), suspension rate (5%), and ELPAC English Learner proficiency (5%). Data source: California Department of Education CAASPP 2025, analyzed by SchoolScope.

What is the best elementary school in Rialto?

The highest-scoring elementary school in Rialto is Samuel W. Simpson Elementary with a Scope Score of 66/100 and 30.4% of students exceeding the state standard. Rankings are based on SchoolScope's 2025 Scope Score, which measures academic performance and school climate using publicly available California data. See full methodology.

How do Rialto schools compare to the state average?

Rialto elementary schools average a Scope Score of 38.6/100 — 6.3 points below the state average of 44.8. The exceeded rate averages 12.9% vs. 21.3% statewide. Chronic absenteeism averages 22.8% vs. 17.9% statewide.

How many schools are in Rialto?

Rialto has 17 ranked elementary schools with Scope Scores. Schools are ranked using a weighted composite of CAASPP test performance, growth trajectory, chronic absenteeism, and suspension rate. Schools with insufficient testing data are not ranked.

What does the Scope Score measure?

The Scope Score is SchoolScope's proprietary composite rating (0–100) based on seven dimensions of publicly available California school data: the exceeded-vs-met standard split, overall proficiency, grade 3–5 growth, chronic absenteeism, suspension rate, ELPAC English Learner proficiency, and baseline proficiency. Unlike single-number ratings, the Scope Score separates students who "exceeded" from those who "met" the standard — revealing whether a school pushes students beyond proficiency or paces toward it. Full methodology and weights.

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