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Parents: what's one thing you'd want the MOUNTAIN ELEMENTARY administration to hear?
Community prompt from u/allk12. Replies below.
Enrollment
435
Elementary
DISTRICT 389 · STATE 287
SCHOOL COMMUNITY·LOS ALAMOS·NCES 350165000433
MOUNTAIN ELEMENTARY
2280 NORTH RD, LOS ALAMOS, NM 87544 · (505) 663-2325 · Los Alamos County
GRADES PK–06ELEMENTARY32-TOWNREGULAR SCHOOL435 STUDENTS
Student : Teacher
12.3:1
36 FTE teachers
DISTRICT 12.2:1 · STATE 12.9:1
Free / Reduced Lunch
10%
42 students
DISTRICT 12% · STATE 90%
Community
1
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Student demographics
Student head counts by race/ethnicity from federal NCES enrollment data. Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
School pathway
Students here typically continue to
MOUNTAIN ELEMENTARY→LOS ALAMOS MIDDLE
Based on grade levels within LOS ALAMOS. Attendance zones can vary; confirm enrollment with the district.
Test scores
NM-MSSA + NM-ASR 2024-25 . % ProficientEnglish Language Arts
84.2%
NM avg 44.2%
Math
75.4%
NM avg 27.2%
What this means: On the NM-MSSA + NM-ASR, New Mexico's statewide test, about 84 of every 100 students at this school read and write at grade level and about 75 of 100 do math at grade level. Across all New Mexico schools, those numbers are about 44 and 27.
Source: NM-MSSA + NM-ASR. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
OUTPERFORMING
Top 10% of NM schools after controlling for student poverty
Actual proficiency
78.1%
composite math + reading, all grades
Predicted
55.1%
based on NM schools with similar FRL share
Beats by
+23.0pp
above demographic expectation
What this means: About 78% of students here test proficient in math and reading, well above the roughly 55% typical for New Mexico schools with a similar share of low-income students. BeatsExpectations ranks schools against others at the same poverty level, not by raw scores, so a school can post high scores and still fall short of its prediction, or post lower scores and still beat it. This school clears its prediction by about 23 points, placing it in New Mexico's top 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
7-year change
SY 2017-18 vs SY 2024-25Enrollment
435
+11 (+3%) vs 2017
Student : Teacher
12.3:1
was 14.1:1
% White
55%
was 61%
% Hispanic
29%
was 24%
% Black
2%
was 1%
% Asian
10%
was 7%
Source: NCES Common Core of Data
About MOUNTAIN ELEMENTARY
MOUNTAIN ELEMENTARY, a sizable primary school in LOS ALAMOS, New Mexico, operated by LOS ALAMOS, instructs 435 students, covering grades pre-K through 6. Compared to the state average of about 287 students per school, that is 52% above typical.
LOS ALAMOS comprises 8 schools with combined enrollment of 3,971 students; MOUNTAIN ELEMENTARY is among them.
In terms of who attends, MOUNTAIN ELEMENTARY shows that White students make up the majority at 55%. Beyond that, the school lists 29% Hispanic, 10% Asian, 3% Native American, 2% Black. The wider county runs roughly 75% White, putting the school's mix meaningfully less White than the area baseline.
Looking at school resources, Staff filings list 36 full-time-equivalent teachers, which works out to roughly 12.3:1 students per teacher. That tracks the state average closely. About 10% of enrolled students meet the income threshold for free or reduced-price lunch, often used as a Title I proxy.
With demographic context factored in, MOUNTAIN ELEMENTARY sits in the top 10% of New Mexico schools after the BeatsExpectations adjustment. Predicted proficiency for the school's FRL share is roughly 55.1%; actual is 78.1%, +23.0 points clear of the demographic baseline.
Across the wider county, the surrounding county (Los Alamos County) shows that the typical household earns roughly $147,139 per year, 70% of adults hold a bachelor's degree or higher, and roughly 3% of residents live below the federal poverty line. MOUNTAIN ELEMENTARY is one of 8 public schools in Los Alamos County (combined enrollment of about 3,971 students).
Nearest neighbor: ASPEN ELEMENTARY, around 0.7 miles off. Counting just inside five miles, 5 other public schools cluster around MOUNTAIN ELEMENTARY. Ranking that nearby cluster on reported proficiency puts MOUNTAIN ELEMENTARY at 1st of 6; the average score across the group is 65.2%.
Geographically, the school is in a small-town area.
Looking at the recent track record. Looking back 7 years, enrollment at MOUNTAIN ELEMENTARY has grew 3%, going from 424 students in 2018 to 435 in 2025. The White share of enrollment shrank from 61% to 55% over that span. Class-load math has narrowed: from 14.1:1 in 2018 to 12.3:1 in 2025.
On allk12, members of the MOUNTAIN ELEMENTARY community share and discuss fundraisers, lost-and-found posts, and report-card season. Posting is open to anyone connected to the school.
Los Alamos County at a glance
View full county profilePopulation
19,435
Census ACS
Median income
$147,139
Household, ACS
Bachelor's+
70%
Adults 25+
Poverty rate
3%
Below federal line
Schools in county
8
3,971 students
Quick facts
Related schools
Other schools in LOS ALAMOS
- LOS ALAMOS HIGHHigh · 1,181 students
- LOS ALAMOS MIDDLEMiddle · 543 students
- BARRANCA MESA ELEMENTARYElementary · 429 students
- ASPEN ELEMENTARYElementary · 428 students
- PINON ELEMENTARYElementary · 350 students
- TOPPER FRESHMAN ACADEMYCombined · 304 students
Other schools in LOS ALAMOS
- LOS ALAMOS HIGHHigh · 1,181 students
- LOS ALAMOS MIDDLEMiddle · 543 students
- BARRANCA MESA ELEMENTARYElementary · 429 students
- ASPEN ELEMENTARYElementary · 428 students
- TOPPER FRESHMAN ACADEMYCombined · 304 students
Nearby schools
- ASPEN ELEMENTARY0.7 mi · 428
- TOPPER FRESHMAN ACADEMY0.8 mi · 304
- LOS ALAMOS HIGH0.9 mi · 1,181
- LOS ALAMOS MIDDLE1.5 mi · 543
- BARRANCA MESA ELEMENTARY2.4 mi · 429
- PINON ELEMENTARY8.1 mi · 350
Frequently asked questions
About MOUNTAIN ELEMENTARYHow many students attend MOUNTAIN ELEMENTARY?
MOUNTAIN ELEMENTARY enrolls approximately 435 students in grades PK-06.
What grades does MOUNTAIN ELEMENTARY serve?
MOUNTAIN ELEMENTARY serves grades PK-06.
What is the student-teacher ratio at MOUNTAIN ELEMENTARY?
The student-to-teacher ratio at MOUNTAIN ELEMENTARY is approximately 12.3:1 (36 FTE teachers).
What is the student diversity at MOUNTAIN ELEMENTARY?
Student demographics at MOUNTAIN ELEMENTARY are roughly 55% White, 29% Hispanic, 2% Black, 10% Asian, 0% Two or more.
Who oversees MOUNTAIN ELEMENTARY?
MOUNTAIN ELEMENTARY is overseen by LOS ALAMOS in Los Alamos County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.