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For the 2025-26 school year, there are 2 public high schools serving 1,311 students in Johnstown, CO.

The top ranked public high schools in Johnstown, CO are Roosevelt High School and Civica Colorado. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.

Johnstown, CO public high schools have an average math proficiency score of 28% (versus the Colorado public high school average of 34%), and reading proficiency score of 52% (versus the 53% statewide average). High schools in Johnstown have an average ranking of 6/10, which is in the top 50% of Colorado public high schools.

Johnstown, CO public high school have a Graduation Rate of 87%, which is more than the Colorado average of 82%.

The school with highest graduation rate is Roosevelt High School, with 87% graduation rate. Read more about public school graduation rate statistics in Colorado or national school graduation rate statistics.

Minority enrollment is 38% of the student body (majority Hispanic), which is less than the Colorado public high school average of 49% (majority Hispanic).