Monarch High School
Louisville, CO · High School · Grades 9-12
Monarch High School is a high school in Louisville, CO with 1,523 students enrolled and a 63% proficiency rate. Part of Boulder Valley School District No. Re2. NCES data from the U.S. Department of Education.
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About This School
Monarch High School is a high school located in Louisville, Colorado. The school serves 1,523 students in grades 9-12. The student-to-teacher ratio is 20.9:1.
According to EDFacts assessment data, 63% of students meet grade-level proficiency standards in combined math and reading. The school reports a 85% graduation rate.
23% of students qualify for free or reduced-price lunch.
Monarch High School is part of the Boulder Valley School District No. Re2 in Colorado.
How This School Compares
Monarch High School has 1,523 students enrolled, making it larger than the average school in Boulder Valley School District No. Re2 (509 students). Its 63% proficiency rate is 7 percentage points above the district average of 57%. Compared to the Colorado state average of 51%, the school performs 12 points higher. The 20.9:1 student-teacher ratio is above the national average of 16:1.
Other Schools in Boulder Valley School District No. Re2
Frequently Asked Questions
Monarch High School has 1,523 students enrolled in grades 9-12. The student-to-teacher ratio is 20.9:1.
According to EDFacts data, 63% of students at Monarch High School meet grade-level proficiency standards in combined math and reading assessments.
Monarch High School has a 85% graduation rate, measuring the percentage of students who graduate within four years.
Monarch High School is part of the Boulder Valley School District No. Re2 in Louisville, Colorado. You can view all schools in this district on the district page.
All data on this page comes from the National Center for Education Statistics (NCES) Common Core of Data and EDFacts assessment results. These are official federal datasets published by the U.S. Department of Education.
School profiles are built from NCES directory data and EDFacts assessment results. Proficiency rates reflect combined math and reading performance. Graduation rates are reported for high schools with available data.
The this entity record above pulls directly from NCES Common Core of Data and EDFacts. What follows is the per-entity context — how this entity sits in the broader U.S. K-12 school outcomes and enrollment distribution and which underlying factors drive the headline numbers.
Every number on this page links back to NCES Common Core of Data and EDFacts; the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.
Practical use of this page is in combination with the comparison and ranking pages elsewhere on the site, which surface the same data for this entity’s peers within U.S. public schools and districts. A single-entity reading without peer context can be misleading when an entity is an outlier on one axis but typical on another.
Source: NCES Common Core of Data, 2026.