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SCHOOL COMMUNITY·ST. VRAIN VALLEY SCHOOL DISTRICT NO. RE1J·NCES 080537001886

Altona Middle School

4600 CLOVER BASIN DRIVE, LONGMONT, CO 80503 · (720) 494-3980 · Boulder County
GRADES 06–08MIDDLE22-SUBURBREGULAR SCHOOL715 STUDENTS
Enrollment
715
Middle
DISTRICT 566 · STATE 462
Student : Teacher
18.5:1
39 FTE teachers
DISTRICT 16.8:1 · STATE 15.9:1
Free / Reduced Lunch
23%
168 students
DISTRICT 39% · STATE 50%
Community
2
0 members
Enrollment and student:teacher ratio compared against other middle schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Grade 6
235
Grade 7
241
Grade 8
239
Student demographics
White
49669%
DISTRICT 59% · STATE 49%
Hispanic
10715%
DISTRICT 32% · STATE 37%
Black
51%
DISTRICT 1% · STATE 5%
Asian
7110%
DISTRICT 4% · STATE 3%
Two+
365%
DISTRICT 4% · STATE 5%
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
Male
36551%
Female
35049%

Discussions

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Test scores

CMAS 2024-25 . % Met or Exceeded Expectations
English Language Arts
71.9%
CO avg 44.9% . -2.9pp since 2023
Math
65.6%
CO avg 36.1% . +1.5pp since 2023
Source: CMAS. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
OUTPERFORMING
Top 10% of CO schools after controlling for student poverty
Actual proficiency
68.4%
composite math + reading, all grades
Predicted
52.5%
based on CO schools with similar FRL share
Beats by
+15.9pp
above demographic expectation
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 2024-25
Enrollment
715
-88 (-11%) vs 2017
Student : Teacher
18.5:1
was 20.2:1
% White
69%
was 71%
% Hispanic
15%
was 12%
% Black
1%
was 2%
% Asian
10%
was 10%
Source: NCES Common Core of Data

About Altona Middle School

Altona Middle School operates as a substantial middle-grades school in LONGMONT, Colorado, run under St. Vrain Valley School District No. Re1J. Current enrollment sits at 715 students spanning grades 6 through 8. Compared to the state average of about 462 students per school, that is 55% above typical.

St. Vrain Valley School District No. Re1J runs 54 schools in total, collectively educating 31,607 students. Altona Middle School is one of those campuses.

On the student-mix side, Altona Middle School logs that 69% of the student body identifies as White. The remainder breaks down as 15% Hispanic, 10% Asian, 5% multiracial. That is noticeably less White than the county at large, where the share is closer to 78%.

In terms of school funding signals, Staff filings list 39 full-time-equivalent teachers, which works out to roughly 18.5:1 students per teacher. That figure is higher than the state norm's 15.9:1 average. An estimated 23% of students are eligible for free or reduced-price lunch, often used as a Title I proxy. By comparison, Boulder County runs at roughly 33%, so the school's eligibility rate is lower than the surrounding baseline.

On a demographically-adjusted basis, Altona Middle School is in the OUTPERFORMING tier of the BeatsExpectations model, which fits a per-state line through proficiency and FRL share. Schools with this campus's poverty mix typically land near 52.5%; this one delivers 68.4%, a residual of +15.9 points.

In the surrounding community, Boulder County reports that median household earnings sit near $103,994, 64% of adults hold a bachelor's degree or higher, and the poverty rate sits near 4%. Across Boulder County's 86 public schools (combined enrollment of about 42,200 students), Altona Middle School is one campus in the mix.

Eagle Crest Elementary School is the nearest neighboring public school, about 0.1 miles from this campus. Within five miles, there are 8 other public schools. Among the 7 schools in that immediate cluster with test data (this one included), Altona Middle School ranks 2nd on composite proficiency, higher than the local average of 44.7%.

The campus sits in an outer-ring setting.

Looking at the recent track record. Looking back 7 years, enrollment at Altona Middle School has edged down 11%, going from 803 students in 2018 to 715 in 2025. Class-load math has pulled in: from 20.2:1 in 2018 to 18.5:1 in 2025.

Within the allk12 community for this school, the page collects discussion, questions, and updates around sports schedules, lunch menu changes, and school spirit week. Contributors range from current parents to recent graduates and teachers.

Boulder County at a glance

View full county profile
Population
328,961
Census ACS
Median income
$103,994
Household, ACS
Bachelor's+
64%
Adults 25+
Poverty rate
4%
Below federal line
Schools in county
86
42,200 students

Quick facts

School name
Altona Middle School
District
St. Vrain Valley School District No. Re1J
Address
4600 CLOVER BASIN DRIVE, LONGMONT, CO 80503
Phone
(720) 494-3980
County
Boulder County
Level
Middle
Grade range
06–08
Total enrollment
715
Teachers (FTE)
39
Student–teacher ratio
18.5:1
Free/Reduced lunch
168 (23%)
Locale
22-Suburb: Mid-size
NCES ID
080537001886
Charter school
No
Virtual school
No

Related schools

Other schools in St. Vrain Valley School District No. Re1J
Other schools in LONGMONT
Nearby schools

Frequently asked questions

About Altona Middle School
What is the total enrollment at Altona Middle School?
Altona Middle School enrolls approximately 715 students in grades 06-08.
What age range does Altona Middle School serve?
Altona Middle School serves students from grade 06 through grade 08.
What is the student-teacher ratio at Altona Middle School?
The student-to-teacher ratio at Altona Middle School is approximately 18.5:1 (39 FTE teachers).
What is the racial breakdown of students at Altona Middle School?
At Altona Middle School, the student body is approximately 69% White, 15% Hispanic, 1% Black, 10% Asian, 5% Two or more.
Is Altona Middle School public or private?
Altona Middle School is a public K-12 school, overseen by St. Vrain Valley School District No. Re1J.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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