Enrollment
805
California · 2024-25 NCES data
Middle school (grades 6-8) · Lancaster, CA
Federal NCES profile for Endeavour Middle, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 33/100.
The verdict
Endeavour Middle earns 33/100 on the Resource Investment Index, with class sizes near the California median.
Endeavour Middle has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Endeavour Middle ranks #2 of 7 middle schools in Lancaster, CA.
NCES ID 062088010826 Verify on NCES CCD record →
Enrollment
805
California · 2024-25 NCES data
Teachers (FTE)
38.0
Federal CCD staff survey
Students per teacher
21.2:1
vs 21.5:1 California avg
-1% vs state
Free-lunch eligible
67.5%
vs 55.5% California avg
+22% vs state
How Endeavour Middle compares with California and U.S. medians
At or below state median
21.2:1 - 0.3 below the California state median of 21.5:1, indicating smaller average class loads than typical schools in the state.
Endeavour Middle is a higher-need, mid-sized middle school in Lancaster, California, enrolling 805 students.
At 21.2:1, 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 above the state's typical profile, with 67.5% of students eligible for free meals.
Enrollment of 805 puts it in the larger third of California schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 9,998 scored California schools.
Against 1,550 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #278.
Its student body is led by Hispanic or Latino (51%) and African American (28%) (diversity index 64/100).
Counselor coverage runs a bit thin, about 268 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 47.2% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Its district draws 19.3% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
The federal civil-rights collection also records 1 expulsion at this campus for 2021-22.
Among Lancaster's middle schools, it stands alongside Amargosa Creek Middle (859 students): Endeavour Middle is smaller than that campus by headcount and runs heavier classes (21.2:1 vs 18.3:1).
Lancaster Elementary also operates Amargosa Creek Middle (859 students) and New Vista Middle (835 students) alongside Endeavour Middle.
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
Endeavour Middle on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 21.2:1 | ▼ 1% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 67.5% | ▲ 22% | 55.5% | 51.7% |
| Enrollment | 805 | top 17% | - | - |
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: Hispanic or Latino at 51.0% of enrollment.
Simpson diversity index - at 64.4, Endeavour Middle is more mixed than the California school average of 46.0.
District-wide per-pupil expenditure for Lancaster Elementary, which includes Endeavour Middle.
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 |
|---|---|---|---|
| Amargosa Creek Middle | Similar size | Similar economic need | Lower S:T ratio |
| New Vista Middle | Similar size | Higher economic need | Similar S:T ratio |
| Monte Vista Elementary | Similar size | Higher economic need | Higher S:T ratio |
| El Dorado Elementary | Similar size | Higher economic need | Higher S:T ratio |
| West Wind Elementary | Similar size | Similar economic need | Higher S:T ratio |
Comparisons are relative to Endeavour Middle's own figures; each column derives from NCES Common Core of Data.
6 comparable middle schools (grades 6-8) 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 Endeavour Middle'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.
Endeavour Middle has 805 students enrolled. It is a middle school in Lancaster, CA.
The student-teacher ratio at Endeavour Middle is 21.2:1, which is 1% lower than the California average of 21.5:1 and 35% higher than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
67.5% of students at Endeavour Middle are eligible for free lunch, compared to the California average of 55.5%.
The largest demographic group at Endeavour Middle is Hispanic or Latino at 51.0% of enrollment, in Lancaster, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 64.4/100.
Endeavour Middle has a Resource Investment Index of 33/100 (typical 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, Endeavour Middle ranks #2 of 7 middle schools in Lancaster, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all middle schools in Lancaster on the city page.
Endeavour Middle earns 33/100 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 Endeavour Middle, Lancaster Elementary also operates Amargosa Creek Middle (859 students), New Vista Middle (835 students), and Monte Vista Elementary (788 students). See the Lancaster 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, “Endeavour Middle, Lancaster 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/endeavour-middle-ca/
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