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W.J.C. Trapp Elementary

Public Grades K-5
1833rd
SchoolDigger Rank ?
of 5,857 California Elementary Schools
Better than 69% of California elementary schools
Summary

W.J.C. Trapp Elementary is a K-5 public school serving 537 students in the Rialto Unified School District, standing out as a consistently improving and high-performing option within its local area.

The school excels academically, with student proficiency rates in English, Math, and Science that are significantly higher than both the district average and the averages of other nearby schools like A. H. Morgan Elementary and Helen L. Dollahan Elementary. It also maintains an exceptionally low rate of chronic student absenteeism—about half the district average—which is a key factor in its success. Furthermore, Trapp achieves these strong results while serving a student population with similar economic backgrounds to its neighbors and does so with efficient use of its resources.

Trapp Elementary shows particular strength in supporting specific student groups and in its lower grades, with third graders performing exceptionally well. While there is a noted decline in proficiency by fifth grade, the school's overall trajectory is positive, having risen to rank in the 69th percentile among all California elementary schools. For families in Rialto, W.J.C. Trapp Elementary demonstrates that a local public school can deliver standout results through effective programs and a strong school culture.

537
Students ?
24.4
Student/teacher ratio ?
$19,875
Per pupil spending ?
73.9%
Free/discounted lunch ?
 2750 North Riverside Ave.
       Rialto, CA  92377-3983

(909) 820-7911

District: Rialto Unified


Students who attend W.J.C. Trapp Elementary usually attend:

Middle:    Ben F. Kolb Middle
High:    Eisenhower High
    Wilmer Amina Carter High
Racial breakdown:

Hispanic:
86.2%
African American:
6.3%
White:
4.7%
more
 See top rated California elementary schools

 Compare W.J.C. Trapp Elementary to nearby elementary schools!
At a glance
Ranking trend: Improving — 54th percentile in 2013 → 69th in 2025
Strengths
Test scores above the California average (50% vs 41% meeting standards)
Ranking is trending up — up 15 percentile points since 2013
Among the top-ranked schools in Rialto Unified
Worth a look
!Large classes — about 24 students per teacher
Students meeting standards (2024-2025) ?
This school50%
District avg32%
California avg41%
1,833rd of 5,857
California public elementary schools ?
Top 31%▲ up 22 pts since 2015
From bottom 47% (2015) to top 31% (2025)
See the entire ranking list of California Elementary Schools →
SchoolDigger rating ?
2nd of 19Elementary Schools in the Rialto Unified
1015th of 1,543Rialto 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
202565.11833 of 585768.7%★★★☆☆
202450.02552 of 586956.5%★★★☆☆
202349.32566 of 585956.2%★★★☆☆
202245.72764 of 588353.0%★★★☆☆
201962.31956 of 578966.2%★★★☆☆
201870.31560 of 566272.4%★★★★☆
201762.71897 of 569266.7%★★★☆☆
201663.51834 of 561467.3%★★★☆☆
201540.92963 of 561147.2%★★☆☆☆
201352.72527 of 553054.3%★★★☆☆
201250.62576 of 539052.2%★★★☆☆
201141.53140 of 537741.6%★★☆☆☆
201046.42776 of 531447.8%★★☆☆☆
200933.43479 of 519333.0%★★☆☆☆
200843.92727 of 511346.7%★★☆☆☆
200739.72919 of 511342.9%★★☆☆☆
200633.13096 of 481835.7%★★☆☆☆
200541.32642 of 482245.2%★★☆☆☆
200434.72958 of 480938.5%★★☆☆☆

African American

YearAvg scoreStatewide rankCalifornia percentileRating
202381.383 of 66187.4%★★★★☆
201975.3124 of 74783.4%★★★★☆
201879.889 of 70087.3%★★★★☆

Disabled

YearAvg scoreStatewide rankCalifornia percentileRating
202266.9472 of 222778.8%★★★★☆

English Language Learner

YearAvg scoreStatewide rankCalifornia percentileRating
202354.01007 of 324569.0%★★★☆☆
202259.2789 of 331176.2%★★★★☆

Female

YearAvg scoreStatewide rankCalifornia percentileRating
202564.81747 of 559768.8%★★★☆☆
202454.12215 of 561260.5%★★★☆☆
202343.82761 of 560950.8%★★★☆☆
202246.72595 of 563553.9%★★★☆☆
201961.21917 of 549265.1%★★★☆☆
201873.11364 of 541374.8%★★★★☆

Hispanic

YearAvg scoreStatewide rankCalifornia percentileRating
202584.1573 of 510788.8%★★★★☆
202467.91278 of 510775.0%★★★★☆
202364.91405 of 508772.4%★★★★☆
202261.01587 of 508468.8%★★★☆☆
201983.5576 of 496388.4%★★★★☆
201888.4367 of 483092.4%★★★★★

Low Socio Economic Status

YearAvg scoreStatewide rankCalifornia percentileRating
202574.91009 of 546081.5%★★★★☆
202458.91864 of 551766.2%★★★☆☆
202361.81647 of 536369.3%★★★☆☆
202260.31662 of 526468.4%★★★☆☆
201977.7818 of 517384.2%★★★★☆
201884.7501 of 508490.1%★★★★★

Male

YearAvg scoreStatewide rankCalifornia percentileRating
202563.41815 of 562867.8%★★★☆☆
202445.62724 of 564351.7%★★★☆☆
202354.32210 of 563860.8%★★★☆☆
202244.32756 of 566351.3%★★★☆☆
201960.21949 of 551064.6%★★★☆☆
201864.51737 of 543168.0%★★★☆☆

Special Education

YearAvg scoreStatewide rankCalifornia percentileRating
202560.9766 of 284773.1%★★★★☆
202463.7630 of 263576.1%★★★★☆
202357.0730 of 242069.8%★★★☆☆
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 (2025)89th percentile+20 vs school
African American (2023)87th percentile+31 vs school
Low Socio Economic Status (2025)82nd percentile+13 vs school
Disabled (2022)79th percentile+26 vs school
Special Education (2025)73rd percentile+4 vs school
English Language Learner (2023)69th percentile+13 vs school
Female (2025)69th percentile~ school
Male (2025)68th percentile~ school
By subject vs California (2024-2025) ?
English Language Arts/Literacy56%+7 vs state
Mathematics50%+12 vs state
Science35%+3 vs state

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Schools Near W.J.C. Trapp Elementary

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Frequently Asked Questions about W.J.C. Trapp Elementary

In the 2024-25 school year, 537 students attended W.J.C. Trapp Elementary.

Students at W.J.C. Trapp Elementary are 86% Hispanic, 6% African American, 5% White, 1% Two or more races, 1% Asian.

Students who attend W.J.C. Trapp Elementary usually go on to attend:

Middle : Ben F. Kolb Middle
High : Eisenhower High
High : Wilmer Amina Carter High

W.J.C. Trapp Elementary ranks 1833rd of 5857 California elementary schools. SchoolDigger rates this school 3 stars out of 5.


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Latest California data All new data »
2024–25 school spending dataJul 1, 2026
2024–25 attendance dataMar 13, 2026
2024–25 CSA Spanish test scoresDec 22, 2025
2024–25 dropout rates & graduation ratesNov 14, 2025


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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