Enrollment
373
California · 2024-25 NCES data
Elementary school (grades K-5) · Placentia, CA
Ruby Drive Elementary
Federal NCES profile for Ruby Drive Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 13/100.
2024-25 NCES dataElementary school (grades K-5)NCES 063066004769
👥 S:T ratio 0
🌟 Gifted program 30
🎓 Counselors 0
📋 Attendance 22
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Ruby Drive Elementary earns 13/100 on the Resource Investment Index, with class sizes larger than 79% of California schools. It is also less racially and ethnically mixed than most California schools.
- #8 of 9
- elementary schools in Placentia · Resource Index
- 13
- Resource Index · Lower
- 24.9:1
- large classes for California
- 75.3%
- free-lunch eligible
Ruby Drive Elementary has class sizes larger than 79% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Ruby Drive Elementary ranks #8 of 9 elementary schools in Placentia, CA.
School address
District: Placentia-Yorba Linda Unified · California
NCES ID 063066004769 Verify on NCES CCD record →
Teachers (FTE)
15.0
Federal CCD staff survey
Students per teacher
24.9:1
vs 21.5:1 California avg
+16% vs state
Free-lunch eligible
75.3%
vs 55.5% California avg
+36% vs state
Student-teacher ratio in context
How Ruby Drive Elementary compares with California and U.S. medians
What stands out at Ruby Drive Elementary
Ruby Drive Elementary is a high-poverty, mid-sized elementary school in Placentia, California, enrolling 373 students.
Class loads run somewhat heavier than typical: 24.9:1 puts it in the larger third of California schools by student-teacher ratio.
Economic need runs somewhat above the state's typical profile, with 75.3% of students eligible for free meals.
With 373 students, its enrollment sits close to the California median campus size.
Its Resource Investment Index trails 94% of the 9,998 California schools with a score on record, one of the lower results on this measure.
Among 1,737 similarly sized, similarly resourced-need California schools statewide, it ranks #1,543, in the lower tier once campus size and economic need are matched.
Its student body is predominantly Hispanic or Latino (89% of enrollment), among the less diverse in the state (diversity index 21/100).
Counselor access is stretched at roughly 746 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 31.1% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among Placentia's elementary schools, it stands alongside Golden Elementary (834 students): Ruby Drive Elementary is smaller than that campus by headcount and runs leaner classes (24.9:1 vs 29.8:1).
Placentia-Yorba Linda Unified also operates Valencia High (2,411 students) and El Dorado High (1,998 students) alongside Ruby Drive Elementary.
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 Ruby Drive Elementary compares
Ruby Drive Elementary on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 24.9:1 | ▲ 16% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 75.3% | ▲ 36% | 55.5% | 51.7% |
| Enrollment | 373 | top 64% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
24.9:1
Leaner classes than 5% of US schools, heavier class loads than most.
373
Bigger than 43% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
75.3%
free-lunch eligible
- 36% above the California average of 55.5%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
24.9:1
students per teacher
- 16% above state mean
Top 79% in California - lower ratio than 21% of state schools
Well above 20:1, one of the more stretched staffing loads nationally relative to enrollment.
Engagement
31.1%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$13,989
per pupil, district-wide
- below California avg of $16,509
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors0.5 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 3 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.8 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
Hispanic or Latino 89.0%
Asian 3.8%
White 2.7%
Two or More 2.4%
African American 1.6%
American Indian / Alaska Native 0.3%
Native Hawaiian / Pacific Islander 0.3%
Largest group: Hispanic or Latino at 89.0% of enrollment.
Student-body diversity index 20.5/100
Simpson diversity index - at 20.5, Ruby Drive Elementary is less mixed than the California school average of 46.0.
Programs
Funding & spending
District-wide per-pupil expenditure for Placentia-Yorba Linda Unified, which includes Ruby Drive Elementary.
$13,989
Per student
-15%
vs California
Avg $16,509
-16%
vs U.S.
Avg $16,593
Revenue mix
Local 50.7%
State 41.2%
Federal 8.1%
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 Ruby Drive Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Valencia High | Larger | Lower economic need | Lower S:T ratio |
| El Dorado High | Larger | Lower economic need | Similar S:T ratio |
| Yorba Linda High | Larger | Lower economic need | Similar S:T ratio |
| Esperanza High | Larger | Lower economic need | Lower S:T ratio |
| Travis Ranch | Larger | Lower economic need | Similar S:T ratio |
Comparisons are relative to Ruby Drive Elementary's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,411
- Students per teacher
- 21.7:1
- Resource Index
- 38/100
- Enrollment
- 1,998
- Students per teacher
- 25:1
- Resource Index
- 30/100
- Enrollment
- 1,631
- Students per teacher
- 24.3:1
- Resource Index
- 38/100
- Enrollment
- 1,393
- Students per teacher
- 19.9:1
- Resource Index
- 36/100
- Enrollment
- 1,197
- Students per teacher
- 23.9:1
- Resource Index
- 32/100
Similar elementary schools in Placentia
6 comparable elementary schools (grades K-5) serving the same city.
Golden Elementary
Standard public school
834 students 29.8:1 students per teacher
John O. Tynes Elementary
Standard public school
591 students 21.1:1 students per teacher
Van Buren Elementary
Standard public school
538 students 24.5:1 students per teacher
Brookhaven Elementary
Standard public school
482 students 28.4:1 students per teacher
Sierra Vista Elementary
Standard public school
454 students 26.7:1 students per teacher
Charles Wagner Elementary
Standard public school
440 students 24.4:1 students per teacher
Similar elementary 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 (~373 students)
Similar student-teacher ratio (~24.9:1)
Next steps
Verify locally before acting on Ruby Drive Elementary's federal record.
- Compare Ruby Drive Elementary against another school. Compare schools
- Placentia-Yorba Linda Unified'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 Ruby Drive Elementary
How many students attend Ruby Drive Elementary?
Ruby Drive Elementary has 373 students enrolled. It is an elementary school in Placentia, CA.
What is the student-teacher ratio at Ruby Drive Elementary?
The student-teacher ratio at Ruby Drive Elementary is 24.9:1, which is 16% higher than the California average of 21.5:1 and 59% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Ruby Drive Elementary?
75.3% of students at Ruby Drive Elementary are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Ruby Drive Elementary?
The largest demographic group at Ruby Drive Elementary is Hispanic or Latino at 89.0% of enrollment, in Placentia, CA.
What is the Resource Investment Index for Ruby Drive Elementary?
Ruby Drive Elementary has a Resource Investment Index of 13/100 (lower reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Ruby Drive Elementary rank among elementary schools in Placentia?
By Resource Investment Index, Ruby Drive Elementary ranks #8 of 9 elementary schools in Placentia, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Placentia on the city page.
Is Ruby Drive Elementary a good school?
Ruby Drive Elementary earns 13/100 on the Resource Investment Index, with class sizes larger than 79% of California schools. It is also less 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 Placentia-Yorba Linda Unified?
Besides Ruby Drive Elementary, Placentia-Yorba Linda Unified also operates Valencia High (2,411 students), El Dorado High (1,998 students), and Yorba Linda High (1,631 students). See the Placentia-Yorba Linda Unified 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.