Enrollment
321
California · 2024-25 NCES data
Elementary school (grades K-5) · Oroville, CA
Federal NCES profile for Poplar Avenue Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 23/100.
The verdict
Poplar Avenue Elementary earns 23/100 on the Resource Investment Index, with class sizes larger than 95% of California schools.
Poplar Avenue Elementary has class sizes larger than 95% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Poplar Avenue Elementary ranks #8 of 15 elementary schools in Oroville, CA.
NCES ID 063918006545 Verify on NCES CCD record →
Enrollment
321
California · 2024-25 NCES data
Teachers (FTE)
11.0
Federal CCD staff survey
Students per teacher
29.2:1
vs 21.5:1 California avg
+36% vs state
Free-lunch eligible
70.1%
vs 55.5% California avg
+26% vs state
How Poplar Avenue Elementary compares with California and U.S. medians
Larger classes than state median
29.2:1 - 7.7 above the California state median of 21.5:1, indicating larger average class loads than typical schools in the state.
Poplar Avenue Elementary is a higher-need, mid-sized elementary school in Oroville, California, enrolling 321 students.
Class loads run heavy: 29.2:1 is larger than about 95% of California schools and 36% above the 21.5:1 state mean, so each teacher carries more students than is typical.
Economic need runs somewhat above the state's typical profile, with 70.1% of students eligible for free meals.
Enrollment of 321 puts it in the smaller third of California schools by headcount.
Its Resource Investment Index lands in the lower third of 9,998 scored California schools.
Against 1,344 statewide peers matched on enrollment and economic need, it ranks mid-pack at #893.
Its student body is led by Asian (50%) and White (27%) (diversity index 65/100).
Counselor coverage runs a bit thin, about 321 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 29.0% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Its district draws 23.2% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Among Oroville's elementary schools, it stands alongside Helen M. Wilcox Elementary (592 students): Poplar Avenue Elementary is smaller than that campus by headcount and runs heavier classes (29.2:1 vs 24.7:1).
Thermalito Union Elementary also operates Nelson Avenue Middle (456 students) and Sierra Avenue Elementary (365 students) alongside Poplar Avenue 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
Poplar Avenue 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 | 29.2:1 | ▲ 36% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 70.1% | ▲ 26% | 55.5% | 51.7% |
| Enrollment | 321 | top 71% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
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.
Largest group: Asian at 49.8% of enrollment.
Simpson diversity index - at 65.4, Poplar Avenue Elementary is more mixed than the California school average of 46.0.
District-wide per-pupil expenditure for Thermalito Union Elementary, which includes Poplar Avenue Elementary.
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.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Nelson Avenue Middle | Larger | Similar economic need | Lower S:T ratio |
| Sierra Avenue Elementary | Similar size | Higher economic need | Lower S:T ratio |
| Plumas Avenue Elementary | Similar size | Similar economic need | Lower S:T ratio |
| Siskiyou Avenue Elementary | Smaller | Higher economic need | Lower S:T ratio |
| Heritage Community Day | Smaller | No free-lunch data | No ratio data |
Comparisons are relative to Poplar Avenue Elementary's own figures; each column derives from NCES Common Core of Data.
6 comparable elementary schools (grades K-5) serving the same city.
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.
Next steps
Verify locally before acting on Poplar Avenue Elementary's federal record.
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.
Poplar Avenue Elementary has 321 students enrolled. It is an elementary school in Oroville, CA.
The student-teacher ratio at Poplar Avenue Elementary is 29.2:1, which is 36% higher than the California average of 21.5:1 and 86% higher than the national average of 15.7:1.
70.1% of students at Poplar Avenue Elementary are eligible for free lunch, compared to the California average of 55.5%.
The largest demographic group at Poplar Avenue Elementary is Asian at 49.8% of enrollment, in Oroville, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 65.4/100.
Poplar Avenue Elementary has a Resource Investment Index of 23/100 (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).
By Resource Investment Index, Poplar Avenue Elementary ranks #8 of 15 elementary schools in Oroville, 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 Oroville on the city page.
Poplar Avenue Elementary earns 23/100 on the Resource Investment Index, with class sizes larger than 95% of 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.
Besides Poplar Avenue Elementary, Thermalito Union Elementary also operates Nelson Avenue Middle (456 students), Sierra Avenue Elementary (365 students), and Plumas Avenue Elementary (322 students). See the Thermalito Union Elementary district page for the complete list.
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.
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PlainSchools, “Poplar Avenue Elementary, Oroville CA.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/poplar-avenue-elementary-ca/
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