Altona Middle School

4600 Clover Basin Drive
Longmont, CO 80503
(School attendance zone shown in map)
9/
10
Top 20%
Serving 741 students in grades 6-8, Altona Middle School ranks in the top 20% of all schools in Colorado for overall test scores (math proficiency is top 20%, and reading proficiency is top 20%).
The percentage of students achieving proficiency in math is 55% (which is higher than the Colorado state average of 32%). The percentage of students achieving proficiency in reading/language arts is 65% (which is higher than the Colorado state average of 45%).
The student:teacher ratio of 19:1 is higher than the Colorado state level of 15:1.
Minority enrollment is 29% of the student body (majority Hispanic), which is lower than the Colorado state average of 50% (majority Hispanic).

Quick Stats (2025)

  • Grades: 6-8
  • Enrollment: 741 students
  • Student:Teacher Ratio: 19:1
  • Minority Enrollment: 29%
  • : Top 20% in CO
  • : 55% (Top 20%)
  • : 65% (Top 20%)
  • : 50-54% (Top 10%)
  • Source: National Center for Education Statistics (NCES), CO Dept. of Education

Top Rankings

Altona Middle School ranks among the top 20% of public schools in Colorado for:

School Overview

Altona Middle School's student population of 741 students has declined by 10% over five school years.
The teacher population of 40 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 6-8
Total Students
741 students
This chart displays total students of Altona Middle School by year, with the latest 2022-23 school year data.
Gender %
This chart displays gender of Altona Middle School
Total Classroom Teachers
40 teachers
This chart displays the total teachers of Altona Middle School by year, with the latest 2022-23 school year data.
Students by Grade
This chart displays the students of Altona Middle School by grade.
School Calendar

School Rankings

Altona Middle School ranks within the top 20% of all 1,779 schools in Colorado (based off of combined math and reading proficiency testing data).
The diversity score of Altona Middle School is 0.47, which is less than the diversity score at state average of 0.62. The school's diversity has stayed relatively flat over five school years.
This School
State Level (CO)
#216 out of 1779 schools
(Top 20%)
This chart displays the overall school rank of Altona Middle School, with the latest 2021-22 school year data.
55%
32%
This chart displays the percentage of students that scored at or above 'proficient' levels in Math of Altona Middle School and the percentage of public school students that scored at or above 'proficient' levels in Math of public schools in Colorado by year, with the latest 2021-22 school year data.
65%
45%
This chart displays the percentage of students that scored at or above 'proficient' levels in Reading/Language Arts of Altona Middle School and the percentage of public school students that scored at or above 'proficient' levels in Reading/Language Arts of Colorado by year, with the latest 2021-22 school year data.
(20-21)
50-54%
29%
Student : Teacher Ratio
19:1
15:1
This chart displays the student teacher ratio of Altona Middle School and the public school average student teacher ratio of Colorado by year, with the latest 2022-23 school year data.
American Indian
n/a
1%
This chart displays the percentage of American Indian students in Altona Middle School and percentage of American Indian public school students in Colorado by year, with the latest 2019-20 school year data.
Asian
9%
3%
This chart displays the percentage of Asian students in Altona Middle School and the percentage of Asian public school students in Colorado by year, with the latest 2022-23 school year data.
Hispanic
14%
36%
This chart displays the percentage of Hispanic students in Altona Middle School and the percentage of Hispanic public school students in Colorado by year, with the latest 2022-23 school year data.
Black
1%
5%
This chart displays the percentage of Black students in Altona Middle School and the percentage of Black public school students in Colorado by year, with the latest 2022-23 school year data.
White
71%
50%
This chart displays the percentage of White students in Altona Middle School and the percentage of White public school students in Colorado by year, with the latest 2022-23 school year data.
Hawaiian
n/a
n/a
Two or more races
5%
5%
This chart displays the percentage of students of two or more races in Altona Middle School and the percentage of public school students of two or more races in Colorado by year, with the latest 2022-23 school year data.
All Ethnic Groups
This chart displays the percentage breakdown of students of all ethnic groups in Altona Middle School.
This chart displays the percentage breakdown of public school students of all ethnic groups in Colorado.
0.47
This chart displays the diversity score of Altona Middle School and the public school average diversity score of Colorado by year, with the latest 2022-23 school year data.
Eligible for Free Lunch
16%
39%
This chart displays the percentage of students who is eligible for free lunch in Altona Middle School and the percentage of public school students who is eligible for free lunch in Colorado by year, with the latest 2022-23 school year data.
Eligible for Reduced Lunch
4%
6%
This chart displays the percentage of students who is eligible for reduced lunch in Altona Middle School and the percentage of public school students who is eligible for reduced lunch in Colorado by year, with the latest 2022-23 school year data.
Source: National Center for Education Statistics (NCES), CO Dept. of Education
Profile last updated: 02/09/2025

Frequently Asked Questions

What is Altona Middle School's ranking?
Altona Middle School is ranked #216 out of 1,779 schools, which ranks it among the top 20% of public schools in Colorado.
What schools are Altona Middle School often compared to?
Altona Middle Schoolis often viewed alongside schools like Westview Middle School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
55% of students have achieved math proficiency (compared to the 32% CO state average), while 65% of students have achieved reading proficiency (compared to the 45% CO state average).
How many students attend Altona Middle School?
741 students attend Altona Middle School.
What is the racial composition of the student body?
71% of Altona Middle School students are White, 14% of students are Hispanic, 9% of students are Asian, 5% of students are Two or more races, and 1% of students are Black.
What is the student:teacher ratio of Altona Middle School?
Altona Middle School has a student ration of 19:1, which is higher than the Colorado state average of 15:1.
What grades does Altona Middle School offer ?
Altona Middle School offers enrollment in grades 6-8
What school district is Altona Middle School part of?
Altona Middle School is part of St. Vrain Valley School District No. Re1j.

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Quick Stats (2025)

  • Grades: 6-8
  • Enrollment: 741 students
  • Student:Teacher Ratio: 19:1
  • Minority Enrollment: 29%
  • : Top 20%
  • : 55% (Top 20%)
  • : 65% (Top 20%)
  • : 50-54% (Top 10%)
  • Source: National Center for Education Statistics (NCES), CO Dept. of Education

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