Enrollment
542
California · 2024-25 NCES data
Elementary school (grades K-5) · Grass Valley, CA
Federal NCES profile for Union Hill Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 22/100.
The verdict
Union Hill Elementary earns 22/100 on the Resource Investment Index, with class sizes near the California median.
Union Hill Elementary has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Union Hill Elementary ranks #4 of 12 elementary schools in Grass Valley, CA.
NCES ID 064038006681 Verify on NCES CCD record →
Enrollment
542
California · 2024-25 NCES data
Teachers (FTE)
26.0
Federal CCD staff survey
Students per teacher
20.8:1
vs 21.5:1 California avg
-3% vs state
Free-lunch eligible
41.4%
vs 55.5% California avg
-25% vs state
How Union Hill Elementary compares with California and U.S. medians
At or below state median
20.8:1 - 0.7 below the California state median of 21.5:1, indicating smaller average class loads than typical schools in the state.
Union Hill Elementary is a mid-sized charter elementary school in Grass Valley, California, enrolling 542 students.
At 20.8:1, its student-teacher ratio sits close to the California median, within a few percentage points of the 21.5:1 state norm, neither notably crowded nor notably small.
Economic need runs somewhat below the state's typical profile, with 41.4% of students eligible for free meals.
With 542 students, its enrollment sits close to the California median campus size.
Its Resource Investment Index lands in the lower third of 9,998 scored California schools.
Among 1,402 similarly sized, similarly resourced-need California schools statewide, it ranks #1,005, in the lower tier once campus size and economic need are matched.
Its student body is led by White (79%) and Two or More (11%) (diversity index 35/100).
Counselor coverage runs a bit thin, about 301 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 38.7% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Union Hill Elementary spends $11,948 per pupil, 28% below the California average, a leaner-resourced district than most.
Among Grass Valley's elementary schools, it stands alongside Grass Valley Charter (546 students): Union Hill Elementary is smaller than that campus by headcount and runs leaner classes (20.8:1 vs 24.8:1).
Its district, Union Hill Elementary, also runs Union Hill Middle (146 students).
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
Union Hill 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 | 20.8:1 | ▼ 3% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 41.4% | ▼ 25% | 55.5% | 51.7% |
| Enrollment | 542 | top 39% | - | - |
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: White at 79.2% of enrollment.
Simpson diversity index - at 35.2, Union Hill Elementary is less mixed than the California school average of 46.0.
District-wide per-pupil expenditure for Union Hill Elementary, which includes Union Hill 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 |
|---|---|---|---|
| Union Hill Middle | Smaller | Similar economic need | Similar S:T ratio |
Comparisons are relative to Union Hill 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 Union Hill 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.
Union Hill Elementary has 542 students enrolled. It is an elementary school in Grass Valley, CA.
The student-teacher ratio at Union Hill Elementary is 20.8:1, which is 3% lower than the California average of 21.5:1 and 32% higher than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
41.4% of students at Union Hill Elementary are eligible for free lunch, compared to the California average of 55.5%.
The largest demographic group at Union Hill Elementary is White at 79.2% of enrollment, in Grass Valley, CA.
Union Hill Elementary has a Resource Investment Index of 22/100 (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, Union Hill Elementary ranks #4 of 12 elementary schools in Grass Valley, 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 Grass Valley on the city page.
Union Hill Elementary earns 22/100 on the Resource Investment Index, with class sizes near the California median. 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 Union Hill Elementary, Union Hill Elementary also operates Union Hill Middle (146 students). See the Union Hill 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.
Published by
PlainSchools Editorial
Independent public-data reference that compiles, verifies, and contextualizes official datasets. We do not accept compensation from entities we cover, and every dataset cites its originating public source.
Last updated:
PlainSchools, “Union Hill Elementary, Grass Valley 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/union-hill-elementary-ca
You are welcome to quote these figures with attribution to PlainSchools and the underlying source. The URL above is stable.