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Longmont High School

1040 Sunset Street, Longmont, CO 80501

BSchola Grade
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Grades
9–12
High
Students
1,268
Enrolled 2024–25
Students per teacher
20.2 : 1
Full-time teachers
District
St. Vrain Valley School District No. Re1J
Boulder County

Schola Grade B · Above average

Letter grade (A–F) · compared with 303 Colorado high schools · How we grade
Test scores48% proficient in math & reading
66thpercentile
Equity32% of low-income students proficient
70thpercentile
Attendance37% chronically absent
42ndpercentile
Graduation rate94% graduate in 4 years
76thpercentile
College readinessAt least 30% take AP, IB or dual-enrollment courses
68thpercentile
Class size20.2 students per teacher
22ndpercentile

Percentiles compare this school with other Colorado high schools; the line marks the middle. Data: test scores 2021–22, graduation and absenteeism 2022–23 (U.S. Department of Education, EDFacts); coursework 2023–24 (Civil Rights Data Collection); staffing 2024–25 (NCES).

About Longmont High School

Longmont High School is a public high school in Longmont, Colorado, serving grades 9–12. It is part of St. Vrain Valley School District No. Re1J. The school is located in a midsize suburb in Boulder County.

In the 2024–25 school year, 1,268 students were enrolled, with about 20.2 students for every full-time teacher. That ratio is larger than the typical Colorado high school (15.6 students per teacher). Its Schola Grade is B (above average), compared with 303 Colorado high schools.

Grades & enrollment

Students per grade, 2024–25Grades 9–12

Location & nearby schools

1040 Sunset Street
Longmont, CO 80501
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School details

Type
Public School · What this means
Level
High
Grades offered
9–12
Enrollment (2024–25)
1,268 students
Students per teacher
20.2 to 1
AP courses offered
22
Charter school
No
Magnet school
No
Locale
Suburb — Midsize
School district
St. Vrain Valley School District No. Re1J
County
Boulder County
NCES school ID
080537000909

Schools near Longmont High School

All 39 schools in Longmont →

School data comes from the U.S. Department of Education: the National Center for Education Statistics (NCES) Common Core of Data and EDGE school locations (2024–25) and Private School Survey (2023–24), the Civil Rights Data Collection (2023–24), and EDFacts (test results 2021–22; graduation and chronic absenteeism 2022–23), plus other public sources. Please contact the school to confirm enrollment, programs, and other details. How we source data.