Enrollment
429
New Mexico · 2024-25 NCES data
Other / mixed grade configuration · Los Alamos, NM
Federal NCES profile for Barranca Mesa Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 42/100.
The verdict
Barranca Mesa Elementary earns 42/100 on the Resource Investment Index, with class sizes near the New Mexico median.
Barranca Mesa Elementary has class sizes near the New Mexico median. Computed live against every New Mexico school reporting to NCES.
By Resource Investment Index, Barranca Mesa Elementary ranks #1 of 3 schools in Los Alamos, NM.
NCES ID 350165000428 Verify on NCES CCD record →
Enrollment
429
New Mexico · 2024-25 NCES data
Teachers (FTE)
34.0
Federal CCD staff survey
Students per teacher
12.6:1
vs 14:1 New Mexico avg
-10% vs state
Free-lunch eligible
15.0%
vs 80.8% New Mexico avg
-81% vs state
How Barranca Mesa Elementary compares with New Mexico and U.S. medians
At or below state median
12.6:1 - 1.4 below the New Mexico state median of 14:1, indicating smaller average class loads than typical schools in the state.
Barranca Mesa Elementary is a lower-poverty, mid-sized combined-grade school in Los Alamos, New Mexico, enrolling 429 students.
At 12.6:1, its student-teacher ratio sits close to the New Mexico median, within a few percentage points of the 14:1 state norm, neither notably crowded nor notably small.
Comparatively few students face economic hardship here, 15.0% free-meal eligibility runs 81% below the New Mexico average.
Enrollment of 429 puts it in the larger third of New Mexico schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 867 scored New Mexico schools.
Against 45 statewide peers matched on enrollment and economic need, it ranks mid-pack at #28.
Its student body is led by White (57%) and Hispanic or Latino (33%) (diversity index 56/100).
Counselor access is stretched at roughly 429 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 26.6% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Los Alamos Public Schools spends $12,646 per pupil, 24% below the New Mexico average, a leaner-resourced district than most.
Its district draws 18.3% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Los Alamos Public Schools also operates Los Alamos High (1,181 students) and Los Alamos Middle (543 students) alongside Barranca Mesa 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
Barranca Mesa Elementary on the metrics families compare, against New Mexico and U.S. means.
| Metric | This school | vs New Mexico | New Mexico avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 12.6:1 | ▼ 10% | 14:1 | 15.7:1 |
| Free-lunch eligible | 15.0% | ▼ 81% | 80.8% | 51.7% |
| Enrollment | 429 | top 26% | - | - |
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 56.9% of enrollment.
Simpson diversity index - at 56.1, Barranca Mesa Elementary is more mixed than the New Mexico school average of 39.8.
District-wide per-pupil expenditure for Los Alamos Public Schools, which includes Barranca Mesa 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 |
|---|---|---|---|
| Los Alamos High | Larger | Similar economic need | Higher S:T ratio |
| Los Alamos Middle | Larger | Similar economic need | Lower S:T ratio |
| Mountain Elementary | Similar size | Similar economic need | Similar S:T ratio |
| Aspen Elementary | Similar size | Similar economic need | Similar S:T ratio |
| Pinon Elementary | Similar size | Similar economic need | Similar S:T ratio |
Comparisons are relative to Barranca Mesa Elementary's own figures; each column derives from NCES Common Core of Data.
Matched by enrollment size and by staffing ratio across all of New Mexico, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Barranca Mesa 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.
Barranca Mesa Elementary has 429 students enrolled. It is a public school in Los Alamos, NM.
The student-teacher ratio at Barranca Mesa Elementary is 12.6:1, which is 10% lower than the New Mexico average of 14:1 and 20% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
15.0% of students at Barranca Mesa Elementary are eligible for free lunch, compared to the New Mexico average of 80.8%.
The largest demographic group at Barranca Mesa Elementary is White at 56.9% of enrollment, in Los Alamos, NM. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 56.1/100.
Barranca Mesa Elementary has a Resource Investment Index of 42/100 (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, Barranca Mesa Elementary ranks #1 of 3 schools in Los Alamos, NM. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Los Alamos on the city page.
Barranca Mesa Elementary earns 42/100 on the Resource Investment Index, with class sizes near the New Mexico 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 Barranca Mesa Elementary, Los Alamos Public Schools also operates Los Alamos High (1,181 students), Los Alamos Middle (543 students), and Mountain Elementary (435 students). See the Los Alamos Public Schools 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, “Barranca Mesa Elementary, Los Alamos NM.” 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/barranca-mesa-elementary-nm
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