Addenbrooke Classical Academy

Located at 3605 S TELLER STREET, in LAKEWOOD, Colorado, Addenbrooke Classical Academy is an one-room-style 9-12 campus that hosts 191 students (grades 9 through 12), part of Jefferson County School District No. R-1. That puts it 70% smaller than the typical public school in Colorado, which averages around 627 students.

Addenbrooke Classical Academy is one of 148 schools operated by Jefferson County School District No. R-1, a district that hosts 74,935 students overall.

Looking at the student body, Addenbrooke Classical Academy reports that White students make up the majority at 57%; the rest comes out to 34% Hispanic, 5% multiracial, 3% Asian. The wider county runs roughly 80% White, putting the school's mix considerably less White than the area baseline.

In terms of school funding signals, Addenbrooke Classical Academy shows 16 full-time-equivalent teachers, putting the student-to-teacher ratio at about 12.3:1. Statewide, the average ratio sits near 16.9:1, putting Addenbrooke Classical Academy tighter than the state norm the norm. About 26% of enrolled students meet the income threshold for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator.

On a residual basis (actual vs predicted given the student mix), On a poverty-adjusted basis, Addenbrooke Classical Academy sits in the bottom 10% statewide. Predicted proficiency from the FRL regression is roughly 51.2%; actual is 12.3%, a gap of -38.9 points.

Zooming out to the county, ACS estimates for Jefferson County put the typical household earns roughly $110,656 per year, 52% of adults hold a bachelor's degree or higher, and roughly 4% of residents live below the federal poverty line. Across Jefferson County's 168 public schools (combined enrollment of about 74,739 students), Addenbrooke Classical Academy is one campus in the mix.

Nearest neighbor: Addenbrooke Classical Grammar School, around 0.4 miles off. Counting just inside five miles, 8 other public schools cluster around Addenbrooke Classical Academy. Among the 7 schools in that immediate cluster with test data (this one included), Addenbrooke Classical Academy ranks 6th on composite proficiency, behind the local average of 23.8%.

Addenbrooke Classical Academy operates from a suburban location. As a public charter, Addenbrooke Classical Academy runs on public funding but with greater curricular and operational autonomy than a typical district school.

Trend over the last 7 years. Looking back 7 years, enrollment at Addenbrooke Classical Academy has shrank 36%, going from 297 students in 2018 to 191 in 2025. Over the same period, the White share shrank from 68% to 57%. The student-to-teacher ratio fell from 13.5:1 in 2018 to 12.3:1 today.

On this page, posts here usually surface around fundraisers, lost-and-found posts, and report-card season. Anyone with firsthand experience at this school can post or comment.