Enrollment
1,577
California · 2024-25 NCES data
High school (grades 9-12) · Walnut Creek, CA
Las Lomas High
Federal NCES profile for Las Lomas High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 48/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 060165000035
👥 S:T ratio 20
📚 AP courses 100
🌟 Gifted program 30
🎓 Counselors 31
📋 Attendance 59
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Las Lomas High earns 48/100 on the Resource Investment Index, with class sizes near the California median. It is also more racially and ethnically mixed than most California schools.
- #2 of 3
- high schools in Walnut Creek · Resource Index
- 48
- Resource Index · Typical
- 20:1
- students per teacher
- 11.5%
- free-lunch eligible
Las Lomas High has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Las Lomas High ranks #2 of 3 high schools in Walnut Creek, CA.
School address
District: Acalanes Union High · California
NCES ID 060165000035 Verify on NCES CCD record →
Teachers (FTE)
79.0
Federal CCD staff survey
Students per teacher
20:1
vs 21.5:1 California avg
-7% vs state
Free-lunch eligible
11.5%
vs 55.5% California avg
-79% vs state
Student-teacher ratio in context
How Las Lomas High compares with California and U.S. medians
What stands out at Las Lomas High
Las Lomas High is a lower-poverty, large high school in Walnut Creek, California, enrolling 1,577 students.
Class sizes run a bit leaner than typical: 20:1 puts it in the smaller third of California schools by student-teacher ratio.
Comparatively few students face economic hardship here, 11.5% free-meal eligibility runs 79% below the California average.
By headcount it is one of the larger campuses in California, bigger than 94% of state schools at 1,577 students.
Its Resource Investment Index sits near the middle of the pack among 9,998 scored California schools.
Against 232 statewide peers matched on enrollment and economic need, it ranks mid-pack at #122.
Its student body is led by White (51%) and Asian (17%), more mixed than most schools in the state (diversity index 67/100).
On the academic-pipeline side it reports 22 Advanced Placement courses.
Counselor availability sits well past the ASCA benchmark, roughly 343 students sharing each counselor, though short of the most stretched campuses.
16.4% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
Among Walnut Creek's high schools, it stands alongside Northgate High (1,546 students): Las Lomas High is larger than that campus by headcount and runs leaner classes (20:1 vs 24.9:1).
Acalanes Union High also operates Campolindo High (1,340 students) and Acalanes High (1,256 students) alongside Las Lomas High.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Las Lomas High compares
Las Lomas High on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 20:1 | ▼ 7% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 11.5% | ▼ 79% | 55.5% | 51.7% |
| Enrollment | 1,577 | top 6% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
20:1
Leaner classes than 16% of US schools, heavier class loads than most.
1,577
Bigger than 96% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
11.5%
free-lunch eligible
- 79% below the California average of 55.5%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
20:1
students per teacher
- 7% below state mean
Top 35% in California - lower ratio than 65% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
16.4%
chronically absent (missed 10%+ of school days)
In the 15-20% range, nearing the "high" absenteeism threshold.
Funding equity
$17,431
per pupil, district-wide
- above California avg of $16,509
Somewhat above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors4.6 FTE
Per 343 students, the combined health-and-guidance staffing load for this school.
Discipline context
3
in-school suspensions + 48 out-of-school
Suspension rate: 0.2 per 100 students. Combined in-school and out-of-school rate: 3.2 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
White 51.2%
Asian 17.2%
Hispanic or Latino 17.0%
Two or More 11.0%
African American 2.9%
Native Hawaiian / Pacific Islander 0.4%
American Indian / Alaska Native 0.3%
Largest group: White at 51.2% of enrollment.
Student-body diversity index 66.6/100
Simpson diversity index - at 66.6, Las Lomas High is more mixed than the California school average of 46.0.
Programs
AP courses offered 22
Funding & spending
District-wide per-pupil expenditure for Acalanes Union High, which includes Las Lomas High.
$17,431
Per student
+6%
vs California
Avg $16,509
+5%
vs U.S.
Avg $16,593
Revenue mix
Local 80.4%
State 14.9%
Federal 4.7%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Las Lomas High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Campolindo High | Similar size | Similar economic need | Similar S:T ratio |
| Acalanes High | Similar size | Similar economic need | Similar S:T ratio |
| Miramonte High | Smaller | Similar economic need | Similar S:T ratio |
| Acalanes Center for Independent Study | Smaller | Similar economic need | Lower S:T ratio |
Comparisons are relative to Las Lomas High's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,340
- Students per teacher
- 19.7:1
- Resource Index
- 45/100
- Enrollment
- 1,256
- Students per teacher
- 19.3:1
- Resource Index
- 38/100
- Enrollment
- 1,167
- Students per teacher
- 18.8:1
- Resource Index
- 41/100
- Enrollment
- 61
- Students per teacher
- 10.2:1
- Resource Index
- 42/100
Similar high schools in Walnut Creek
2 comparable high schools (grades 9-12) serving the same city.
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of California, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~1,577 students)
Next steps
Verify locally before acting on Las Lomas High's federal record.
- Compare Las Lomas High against another school. Compare schools
- Acalanes Union High's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Las Lomas High
How many students attend Las Lomas High?
Las Lomas High has 1,577 students enrolled. It is a high school in Walnut Creek, CA.
What is the student-teacher ratio at Las Lomas High?
The student-teacher ratio at Las Lomas High is 20:1, which is 7% lower than the California average of 21.5:1 and 27% higher than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Las Lomas High?
11.5% of students at Las Lomas High are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Las Lomas High?
The largest demographic group at Las Lomas High is White at 51.2% of enrollment, in Walnut Creek, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 66.6/100.
What is the Resource Investment Index for Las Lomas High?
Las Lomas High has a Resource Investment Index of 48/100 (typical reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Las Lomas High rank among high schools in Walnut Creek?
By Resource Investment Index, Las Lomas High ranks #2 of 3 high schools in Walnut Creek, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Walnut Creek on the city page.
Is Las Lomas High a good school?
Las Lomas High earns 48/100 on the Resource Investment Index, with class sizes near the California median. It is also more racially and ethnically mixed than most California schools. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Acalanes Union High?
Besides Las Lomas High, Acalanes Union High also operates Campolindo High (1,340 students), Acalanes High (1,256 students), and Miramonte High (1,167 students). See the Acalanes Union High district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.