Arapahoe High School

Arapahoe High School is a high-enrollment four-year high school in CENTENNIAL, Colorado, run under Littleton School District No. 6 in the county of Arapahoe. The school enrolls 1,748 students in grades 9 through 12. That puts it 179% bigger than the typical public school in Colorado, which averages around 627 students.

Littleton School District No. 6 in the county of Arapahoe runs 20 schools in total, collectively educating 13,109 students. Arapahoe High School is one of those campuses.

On the student-mix side, Arapahoe High School records that 79% of the student body identifies as White. The remainder breaks down as 11% Hispanic, 5% multiracial. That is noticeably more White than the county at large, where the share is closer to 59%.

On the resource side, The school employs 78 full-time-equivalent teachers, for a student-teacher ratio near 22.5:1. That figure is higher than the state norm's 16.9:1 average. An estimated 17% of students are eligible for free or reduced-price lunch, a commonly cited indicator of low-income enrollment. That share is below Arapahoe County's rate of about 50%.

On a residual basis (actual vs predicted given the student mix), Arapahoe High School tracks the demographic baseline. The model predicts 56.5% given the school's FRL share; actual proficiency is 60.3%.

In the surrounding community, the surrounding county (Arapahoe County) reports that median household earnings sit near $101,087, 47% of adults hold a bachelor's degree or higher, and the poverty rate sits near 6%. In all, Arapahoe County runs 176 public schools (combined enrollment of about 115,502 students), of which Arapahoe High School is one.

The closest other public school is Little Raven Elementary School, roughly 0.7 miles away. Counting just inside five miles, 8 other public schools cluster around Arapahoe High School. On composite proficiency, Arapahoe High School comes 3rd of 8 in the immediate cluster, higher than the nearby-schools average of 56.5%.

Arapahoe High School operates from an urban location.

Five-year trend. Looking back 7 years, enrollment at Arapahoe High School has fell 22%, going from 2,230 students in 2018 to 1,748 in 2025.

On the community side, the page collects discussion, questions, and updates around sports schedules, lunch menu changes, and school spirit week. Contributors range from current parents to recent graduates and teachers.