Below Average
#7645 of 9,539 schools in CA
William Collier Elementary
Elementary School · Lake Elsinore Unified
20150 Mayhall Dr., Wildomar, CA 92595
Enrollment
734
Student-Teacher
25.3:1
Score
4.7
Grades
Kindergarten – 5th
Enrollment
734
Student-Teacher
25.3:1
Score
4.7
Grades
Kindergarten – 5th
Data vintage
2022-23
Data vintage2022-23
How this school compares
California schools
#7,645 of 9,539
In Wildomar
#5 of 8
public schools
In district
#12 of 24
Lake Elsinore Unified
Shortlisting around William Collier Elementary?
Use this profile as one decision point, then compare nearby options, source confidence, and commute fit before picking a neighborhood around it.
Shortlist starter
Start with these real page-level signals, then use the full table and map below.
William Collier Elementary
Elementary School in Wildomar · grades Kindergarten – 5th. Start here, then compare fit against nearby and district options.
Julia Lee Performing Arts Academy
0.6 mi away. Use as a geographic alternative in the same move search.
Faith Baptist Academy
0.8 mi away. Use as a geographic alternative in the same move search.
About William Collier Elementary
William Collier Elementary is a public elementary school in Wildomar, CA, part of Lake Elsinore Unified. William Collier Elementary serves approximately 734 students, and covers grades Kindergarten-5th, and has a 25.3:1 student-teacher ratio. William Collier Elementary has a current MySchoolScout rating of 4.7 out of 10 and ranks #7,645 of 9,539 schools in CA.
Structured state assessment records for William Collier Elementary show 42% math proficiency (multi-year average, 2009-2024) and 44% reading/ELA proficiency (multi-year average, 2009-2024).
- This school 4.7 · Below Average
- District avg 4.2
- CA avg 6.2
What Parents Should Know
William Collier Elementary runs 25.3:1 students to teachers, above the national average. That often means bigger classes. Ask how the school supports kids who need extra help, and whether there are teaching assistants or small-group time.
34% of students at William Collier Elementary were chronically absent in the 2022-23 school year, above the national average. Chronic absenteeism means missing 15 or more school days, and at high rates it drags on classroom pacing for everyone. Ask what the school does to help families get kids to class consistently.
Score Breakdown
Full Profile · 3/3 metricsView breakdown
View breakdown
View breakdown
William Collier Elementary — Students at William Collier Elementary score 34% proficient, which is above what's typical for similar communities (expected: 33%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
74.3%
Students qualifying for federal meal assistance
Test Scores CA CAASPP (2023-24)
Based on 36 test records from CA state assessments. About our data
Proficiency Trend
↓ DecliningAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 4.4/10.
How William Collier Elementary Compares
See how William Collier Elementary performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Programs & Offerings
Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more
Location
20150 Mayhall Dr., Wildomar, CA 92595
Nearby Alternatives
Families considering William Collier Elementary may also want to explore other elementary schools in the area. BUNDY CANYON CHRISTIAN SCHOOL (rated 6.7/10, 3.0 miles away), which scores notably higher. Another option is Donald Graham Elementary (rated 5.8/10, 2.6 miles away), which scores notably higher. Additionally, Cottonwood Canyon Elementary (rated 5.6/10, 3.8 miles away, in nearby Lake Elsinore), which scores slightly higher. For more schools in Wildomar, see our Wildomar schools guide .
Nearby Schools
20 within 3.8 mi| School | Distance | Rating |
|---|---|---|
| Julia Lee Performing Arts Academy Lake Elsinore | 0.6 mi | 4.3 |
| FAITH BAPTIST ACADEMY Wildomar | 0.8 mi | 7.0 |
| Elsinore High Wildomar | 1.4 mi | 5.4 |
| Lakeland Village Lake Elsinore | 1.6 mi | 3.5 |
| Wildomar Elementary Wildomar | 1.9 mi | 4.4 |
| California Lutheran High School Wildomar | 2.0 mi | — |
| CALIFORNIA LUTHERAN HIGH SCHOOL Wildomar | 2.0 mi | 7.6 |
| David A. Brown Middle Wildomar | 2.2 mi | 3.8 |
| ANNE SULLIVAN PRESCHOOL & KINDERGARTEN Wildomar | 2.2 mi | — |
| CORNERSTONE CHRISTIAN SCHOOL Wildomar | 2.2 mi | 7.0 |
| GRACE CHRISTIAN SCHOOL OF WILDOMAR Wildomar | 2.4 mi | 7.8 |
| Donald Graham Elementary Wildomar | 2.6 mi | 5.8 |
| Railroad Canyon Elementary Lake Elsinore | 3.3 mi | 4.0 |
| Lambs Christian Lake Elsinore | 3.5 mi | — |
| Bundy Canyon Christian School Wildomar | 3.0 mi | — |
| BUNDY CANYON CHRISTIAN SCHOOL Wildomar | 3.0 mi | 6.7 |
| Grace Christian School of Temecula Valley Wildomer | 3.4 mi | — |
| Ronald Reagan Elementary Wildomar | 3.5 mi | 3.7 |
| Lefebvre Family Home School Lake Elsinore | 3.5 mi | — |
| Cottonwood Canyon Elementary Lake Elsinore | 3.8 mi | 5.6 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 92595 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$98,132
Median Home Value
$523,500
Median Rent
$2,042/mo
Population
34,505
College Educated
18.4%
Homeownership
76.5%
Avg Commute
38.7 min
Poverty Rate
11.4%
Median Age
35.3
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Abraham Lincoln Elementary Santa Ana, CA | 4.7 |
| Alpha: Cornerstone Academy Preparatory San Jose, CA | 4.7 |
| Amelia Earhart Elementary School of International Studies Indio, CA | 4.7 |
| Calabasas Elementary Watsonville, CA | 4.7 |
| Center Elementary Fairfield, CA | 4.7 |
| Central Elementary National City, CA | 4.7 |
Frequently Asked Questions
Common questions about William Collier Elementary
What grades does William Collier Elementary serve?
William Collier Elementary serves students in grades Kindergarten through 5th.
How many students attend William Collier Elementary?
William Collier Elementary has an enrollment of approximately 734 students.
What is the student-teacher ratio at William Collier Elementary?
The student-teacher ratio at William Collier Elementary is 25.3:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does William Collier Elementary rank in CA?
William Collier Elementary ranks #7,645 of 9,539 schools in CA.
What is William Collier Elementary's MySchoolScout rating?
William Collier Elementary has a current MySchoolScout rating of 4.7 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at William Collier Elementary?
Based on loaded state assessment records, William Collier Elementary has 42% math proficiency (multi-year average, 2009-2024) and 44% reading/ELA proficiency (multi-year average, 2009-2024).
Is William Collier Elementary a charter school?
No, William Collier Elementary is not a charter school. It is a traditional public school operated by the local school district.
Is William Collier Elementary a Title I school?
No, William Collier Elementary is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for William Collier Elementary?
74.3% of students at William Collier Elementary qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Explore More Schools
Neighborhood Context
Powered by 
Quick Facts NCES CCD (SY 2022-23)
- Grades
- Kindergarten – 5th
- Enrollment
- 734
- Student-Teacher Ratio
- 25.3:1
- Teachers (FTE)
- 29
- Free/Reduced Lunch
- 74.3%
- Type
- regular
- Setting
- Large Suburb
- County
- Riverside County
- Chronic Absenteeism (SY 2022-23)
- 34.2%
- Phone
- (951) 253-7630
Resources & Links
District
Lake Elsinore Unified- District Enrollment
- 20,769
- Schools in District
- 25
- Per-Pupil Spending
- $16,089
- District Rank
- #12 of 24
Other Schools in This District
How we rate schools
A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.
See how we rateRelated reading
- Best Elementary Schools in America: 2026 Rankingsbest schools
- Best Public Schools in California 2026: Top-Ranked Elementary, Middle & High Schoolsbest schools
- Best School Districts to Move To in 2026: A Data-Driven Guidebest schools
- Best Schools in Los Angeles, CA — 2026 Rankingsbest schools
- Best Schools in San Diego, CA — 2026 Rankingsbest schools
Get school insights in your inbox
New rankings, best-schools lists, and parent guides — delivered free. No spam, unsubscribe anytime.
We respect your privacy. Unsubscribe at any time.