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Samuel W. Simpson Elementary

Public Grades K-5
1178th
SchoolDigger Rank ?
of 5,817 California Elementary Schools
Better than 80% of California elementary schools
Summary

Samuel W. Simpson Elementary is a K–5 school in Rialto, California, with 638 students in Rialto Unified. Its strongest overall distinction is that, in 2025–2026, it ranked first among the seven nearby K–5 schools in ELA, math, and science proficiency.

Academically, the school stands out most in ELA: 68% of students were proficient, compared with 49% statewide, 44% in the district, and 39% across nearby K–5 schools. Math proficiency was 54%, versus 38% statewide and 25% in the district; science was 48%, compared with 36% statewide and 28% in the district. The main weakness is fifth-grade math: proficiency was 37%, a sharp drop from 61% in fourth grade, and less than 1 percentage point above the state result. It was 1 point below nearby Georgia F. Morris Elementary, the local grade-five leader. This dip is specific to math: Simpson had the highest nearby grade-five ELA and science results.

Results have improved since 2022–2023: proficiency rose 14 points in ELA, 13 in math, and 12 in science, while the school’s lead over the state also grew in each subject. SchoolDigger gives the school a 4-star rating and places it at the 80th statewide percentile, up from the 64th percentile in 2022–2023; the district is at the 35th percentile with 2 stars. Chronic absenteeism also fell, from 47% in 2021–2022 to 8% in 2025–2026, the lowest reported rate among nearby schools. The 2024–2025 student-teacher ratio was 24.5, around the nearby range of 20.7–25.7, and 83% of students were free/reduced lunch eligible, compared with an 86% nearby average. SchoolDigger’s subgroup rankings show lower relative results for students with disabilities: the school ranked at the 16th percentile for that group in 2021–2022, compared with its overall 53rd percentile that year; for Special Education Students, it ranked at the 57th percentile in 2025–2026, below its overall 80th percentile.

638
Students ?
24.5
Student/teacher ratio ?
$15,101
Per pupil spending ?
82.4%
Free/reduced lunch eligible (2024-25) ?
All students in California receive free school meals.
≥ 99%
Kindergartners with all required immunizations (2024-25)
 1050 South Lilac Ave.
       Rialto, CA  92376-7826

(909) 820-7954

District: Rialto Unified


Students who attend Samuel W. Simpson Elementary usually attend:

Middle:    Rialto Middle
High:    Rialto High
Racial breakdown:

Hispanic:
89.8%
African American:
4.2%
White:
3.6%
more
 See top rated California elementary schools

 Compare Samuel W. Simpson Elementary to nearby elementary schools!
At a glance
▲ Ranking trend: Improving — 52nd percentile in 2015 → 80th in 2026
Strengths
✓Test scores above the California average (59% vs 42% meeting standards)
✓Ranks in the top 20% of California elementary schools
✓Ranking is trending up — up 28 percentile points since 2015
Worth a look
!Some student groups rank well below the school's overall statewide standing
!Large classes — about 24 students per teacher
Students meeting standards (2025-2026) ?
This school59%
District avg34%
California avg42%
1,178th of 5,817
California public elementary schools ?
Top 20%▲ up 27 pts since 2016
From top 47% (2016) to top 20% (2026)
See the entire ranking list of California Elementary Schools →
★★★★★
SchoolDigger rating ?
1st of 19Elementary Schools in the Rialto Unified
977th of 1,530Rialto Unified among California districts
Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)
Show full rank history (all student groups)

All Students

YearAvg scoreStatewide rankCalifornia percentileRating
202678.81178 of 581779.7%★★★★☆
202573.81429 of 585775.6%★★★★☆
202473.31437 of 586975.5%★★★★☆
202359.02093 of 585964.3%★★★☆☆
202245.42774 of 588352.8%★★★☆☆
201956.72219 of 578961.7%★★★☆☆
201853.72356 of 566258.4%★★★☆☆
201740.93050 of 569246.4%★★☆☆☆
201646.92666 of 561452.5%★★★☆☆
201545.72699 of 561151.9%★★★☆☆
201352.52536 of 553054.1%★★★☆☆
201262.91898 of 539064.8%★★★☆☆
201155.62263 of 537757.9%★★★☆☆
201060.71942 of 531463.5%★★★☆☆
200937.23223 of 519337.9%★★☆☆☆
200844.82673 of 511347.7%★★☆☆☆
200740.22891 of 511343.5%★★☆☆☆
200633.73069 of 481836.3%★★☆☆☆
200542.12601 of 482246.1%★★☆☆☆
200448.72225 of 480953.7%★★★☆☆

Disabled

YearAvg scoreStatewide rankCalifornia percentileRating
202222.91868 of 222716.1%★☆☆☆☆
201930.41770 of 258531.5%★★☆☆☆
201832.61321 of 212837.9%★★☆☆☆

English Language Learner

YearAvg scoreStatewide rankCalifornia percentileRating
202480.6233 of 316292.6%★★★★★
202371.7451 of 324586.1%★★★★☆
202256.2919 of 331172.2%★★★★☆
201951.21182 of 327563.9%★★★☆☆
201843.51588 of 324651.1%★★★☆☆

Female

YearAvg scoreStatewide rankCalifornia percentileRating
202679.41079 of 558180.7%★★★★☆
202571.31447 of 559774.1%★★★★☆
202471.41428 of 561274.6%★★★★☆
202353.12245 of 560960.0%★★★☆☆
202237.63145 of 563544.2%★★☆☆☆
201957.12117 of 549261.5%★★★☆☆
201859.71993 of 541363.2%★★★☆☆

Hispanic

YearAvg scoreStatewide rankCalifornia percentileRating
202691.3297 of 509494.2%★★★★★
202587.6429 of 510791.6%★★★★★
202487.6446 of 510791.3%★★★★★
202374.7972 of 508780.9%★★★★☆
202266.91302 of 508474.4%★★★★☆
201971.21107 of 496377.7%★★★★☆
201870.31131 of 483076.6%★★★★☆

Low Socio Economic Status

YearAvg scoreStatewide rankCalifornia percentileRating
202689.3371 of 542393.2%★★★★★
202583.7622 of 546088.6%★★★★☆
202482.2740 of 551786.6%★★★★☆
202368.91275 of 536376.2%★★★★☆
202260.81637 of 526468.9%★★★☆☆
201971.11129 of 517378.2%★★★★☆
201867.61320 of 508474.0%★★★★☆

Male

YearAvg scoreStatewide rankCalifornia percentileRating
202674.71296 of 560376.9%★★★★☆
202573.51354 of 562875.9%★★★★☆
202472.31403 of 564375.1%★★★★☆
202363.41793 of 563868.2%★★★☆☆
202253.72253 of 566360.2%★★★☆☆
201955.72162 of 551060.8%★★★☆☆
201847.72586 of 543152.4%★★★☆☆

Special Education

YearAvg scoreStatewide rankCalifornia percentileRating
202645.71257 of 292757.1%★★★☆☆
How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)
Hispanic (2026)94th percentile+14 vs school
Low Socio Economic Status (2026)93rd percentile+13 vs school
English Language Learner (2024)93rd percentile+17 vs school
Female (2026)81st percentile~ school
Male (2026)77th percentile-3 vs school
Special Education (2026)57th percentile-23 vs school
Disabled (2022)16th percentile-37 vs school
By subject vs California (2025-2026) ?
English Language Arts/Literacy68%+18 vs state
Mathematics54%+16 vs state
Science48%+12 vs state

★
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Frequently Asked Questions about Samuel W. Simpson Elementary

Students at Samuel W. Simpson Elementary are 90% Hispanic, 4% African American, 4% White, 1% Asian.

In the 2024-25 school year, 638 students attended Samuel W. Simpson Elementary.

Students who attend Samuel W. Simpson Elementary usually go on to attend:

Middle : Rialto Middle
High : Rialto High

Samuel W. Simpson Elementary ranks 1178th of 5817 California elementary schools. SchoolDigger rates this school 4 stars out of 5.

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Latest California data All new data »
2024–25 school spending data (updated)NewNov 2, 2026
2013–14 through 2024–25 immunization rates (updated)Oct 19, 2026
2025–26 attendance data, dropout rates & graduation ratesOct 15, 2026
2025–26 CAST, CSA Spanish & Smarter Balanced Assessments scoresOct 15, 2026


SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the California Department of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.

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