Altona Middle School
770
Students
19.4:1
S:T Ratio
School Snapshot
Key metrics at a glanceStudent-Teacher Ratiostudents per teacher
19:1
B-
Average
Graduation Rate
93%
A+
Excellent
This Week at Altona – April 5, 2026
112 students practicing on Varsity Tutors
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School Details
Address
4600 Clover Basin Drive, Longmont, CO 80503
Phone
(720)494-3980
District
St. Vrain Valley School District No. Re1J
Academic Calendar
2025-2026
Important dates, holidays, and school events