Excellent
#1342 of 9,539 schools in CA
Top 14% in state
Las Lomas High
High School · Acalanes Union High
1460 South Main St., Walnut Creek, CA 94596
Enrollment
1,568
Student-Teacher
20.1:1
Score
8.1
Grades
9th – 12th
Enrollment
1,568
Student-Teacher
20.1:1
Score
8.1
Grades
9th – 12th
Data vintage
2022-23
Data vintage2022-23
How this school compares
California schools
#1,342 of 9,539
In Walnut Creek
#2 of 16
public schools
In district
#4 of 5
Acalanes Union High
School environment
9.1 / 10
Excellent
Shortlisting around Las Lomas High?
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Las Lomas High
High School in Walnut Creek · grades 9th – 12th. Start here, then compare fit against nearby and district options.
Building Connections Behavioral Health
0.4 mi away. Use as a geographic alternative in the same move search.
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0.6 mi away. Use as a geographic alternative in the same move search.
About Las Lomas High
Las Lomas High is a public high school in Walnut Creek, CA, part of Acalanes Union High. Las Lomas High serves approximately 1,568 students, and covers grades 9th-12th, and has a 20.1:1 student-teacher ratio. Las Lomas High has a current MySchoolScout rating of 8.1 out of 10 and ranks #1,342 of 9,539 schools in CA.
Structured state assessment records for Las Lomas High show 65% math proficiency (multi-year average, 2009-2024) and 79% reading/ELA proficiency (multi-year average, 2009-2024).
- This school 8.1 · Excellent
- District avg 8.4
- CA avg 6.5
What Parents Should Know
Las Lomas High runs 20.1:1 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.
Score Breakdown
Full Profile · 4/4 metricsView breakdown
View breakdown
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Las Lomas High — Students at Las Lomas High score 63% proficient, which is below what's typical for similar communities (expected: 66%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
14.1%
Students qualifying for federal meal assistance
Test Scores CA CAASPP (2023-24)
Based on 30 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: 6.9/10.
How Las Lomas High Compares
See how Las Lomas High 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
1460 South Main St., Walnut Creek, CA 94596
Nearby Alternatives
Families considering Las Lomas High may also want to explore other high schools in the area. FUSION ACADEMY WALNUT CREEK DOWNTOWN (rated 7.9/10, 1.2 miles away), with a very similar rating. Additionally, Acalanes Center for Independent Study (rated 7.5/10, 1.5 miles away), with a comparable rating. For more schools in Walnut Creek, see our Walnut Creek schools guide .
Nearby Schools
20 within 2.2 miNeighborhood Census ACS (2019-2023)
Census data for ZIP 94596 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$137,660
Median Home Value
$1,245,000
Median Rent
$2,471/mo
Population
23,592
College Educated
69.5%
Homeownership
44.9%
Avg Commute
32 min
Poverty Rate
6.2%
Median Age
37.5
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Alhambra High Alhambra, CA | 8.1 |
| Anderson W. Clark Magnet High La Crescenta, CA | 8.1 |
| Ann Sobrato High Morgan Hill, CA | 8.1 |
| Arroyo High El Monte, CA | 8.1 |
| Bonita High San Dimas, CA | 8.1 |
| Clovis West High Fresno, CA | 8.1 |
Frequently Asked Questions
Common questions about Las Lomas High
What grades does Las Lomas High serve?
Las Lomas High serves students in grades 9th through 12th.
How many students attend Las Lomas High?
Las Lomas High has an enrollment of approximately 1,568 students.
What is the student-teacher ratio at Las Lomas High?
The student-teacher ratio at Las Lomas High is 20.1:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Las Lomas High rank in CA?
Las Lomas High ranks #1,342 of 9,539 schools in CA.
What is Las Lomas High's MySchoolScout rating?
Las Lomas High has a current MySchoolScout rating of 8.1 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 Las Lomas High?
Based on loaded state assessment records, Las Lomas High has 65% math proficiency (multi-year average, 2009-2024) and 79% reading/ELA proficiency (multi-year average, 2009-2024).
Is Las Lomas High a charter school?
No, Las Lomas High is not a charter school. It is a traditional public school operated by the local school district.
Is Las Lomas High a Title I school?
No, Las Lomas High is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Las Lomas High?
14.1% of students at Las Lomas High qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Neighborhood Context
Powered by 
Quick Facts NCES CCD (SY 2022-23)
- Grades
- 9th – 12th
- Enrollment
- 1,568
- Student-Teacher Ratio
- 20.1:1
- Teachers (FTE)
- 78
- Free/Reduced Lunch
- 14.1%
- Type
- regular
- Setting
- Small City
- County
- Contra Costa County
- Chronic Absenteeism (SY 2022-23)
- 12.0%
- Phone
- (925) 280-3920
- 4-Year Graduation
- 97.0%
Resources & Links
District
Acalanes Union High- District Enrollment
- 5,415
- Schools in District
- 5
- Per-Pupil Spending
- $19,127
- District Rank
- #4 of 5
Other Schools in This District
How we rate schools
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