Enrollment
191
Colorado · 2024-25 NCES data
High school (grades 9-12) · Lakewood, CO
Addenbrooke Classical Academy
Federal NCES profile for Addenbrooke Classical Academy, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 42/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 080480006587Charter school
👥 S:T ratio 41
📚 AP courses 10
🌟 Gifted program 70
📋 Attendance 45
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Addenbrooke Classical Academy earns 42/100 on the Resource Investment Index, with class sizes near the Colorado median.
- #3 of 12
- high schools in Lakewood · Resource Index
- 42
- Resource Index · Typical
- 14.7:1
- students per teacher
- 191
- students enrolled
Addenbrooke Classical Academy has class sizes near the Colorado median. Computed live against every Colorado school reporting to NCES.
By Resource Investment Index, Addenbrooke Classical Academy ranks #3 of 12 high schools in Lakewood, CO.
School address
District: Jefferson County School District No. R-1 · Colorado
NCES ID 080480006587 Verify on NCES CCD record →
Teachers (FTE)
13.0
Federal CCD staff survey
Students per teacher
14.7:1
vs 16.6:1 Colorado avg
-11% vs state
Student-teacher ratio in context
How Addenbrooke Classical Academy compares with Colorado and U.S. medians
What stands out at Addenbrooke Classical Academy
Addenbrooke Classical Academy is a mid-sized charter high school in Lakewood, Colorado, enrolling 191 students.
Class sizes run a bit leaner than typical: 14.7:1 puts it in the smaller third of Colorado schools by student-teacher ratio.
Enrollment of 191 puts it in the smaller third of Colorado schools by headcount.
Its Resource Investment Index lands in the upper third of 1,922 scored Colorado schools.
Its student body is led by White (57%) and Hispanic or Latino (34%) (diversity index 56/100).
No Advanced Placement courses are reported for this campus in the federal data.
Attendance runs somewhat below the norm, with 22.0% of students chronically absent per the 2021-22 civil-rights collection.
Jefferson County School District No. R-1 also operates Arvada West High School (1,923 students) and Ralston Valley Senior High School (1,875 students) alongside Addenbrooke Classical Academy.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Addenbrooke Classical Academy compares
Addenbrooke Classical Academy on the metrics families compare, against Colorado and U.S. means.
| Metric | This school | vs Colorado | Colorado avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 14.7:1 | ▼ 11% | 16.6:1 | 15.7:1 |
| Enrollment | 191 | top 77% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
14.7:1
Leaner classes than 50% of US schools, a middle-of-the-pack class size.
191
Bigger than 19% of US schools by enrollment, a small campus.
Equity indicators (what these measure)
Staffing depth
14.7:1
students per teacher
- 11% below state mean
Top 38% in Colorado - lower ratio than 62% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
22.0%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$13,124
per pupil, district-wide
- below Colorado avg of $16,273
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors0.1 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
11
in-school suspensions + 4 out-of-school
Suspension rate: 5.8 per 100 students. Combined in-school and out-of-school rate: 7.9 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
White 56.5%
Hispanic or Latino 34.0%
Two or More 4.7%
Asian 3.1%
American Indian / Alaska Native 1.0%
African American 0.5%
Largest group: White at 56.5% of enrollment.
Student-body diversity index 56.2/100
Simpson diversity index - at 56.2, Addenbrooke Classical Academy is more mixed than the Colorado school average of 47.1.
Programs
AP program Not offered
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Jefferson County School District No. R-1, which includes Addenbrooke Classical Academy.
$13,124
Per student
-19%
vs Colorado
Avg $16,273
-21%
vs U.S.
Avg $16,593
Revenue mix
Local 55.3%
State 36.9%
Federal 7.8%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Addenbrooke Classical Academy Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Arvada West High School | Larger | No free-lunch data | Higher S:T ratio |
| Ralston Valley Senior High School | Larger | No free-lunch data | Higher S:T ratio |
| Chatfield High School | Larger | No free-lunch data | Higher S:T ratio |
| Lakewood High School | Larger | No free-lunch data | Higher S:T ratio |
| Columbine High School | Larger | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Addenbrooke Classical Academy's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,923
- Students per teacher
- 21.4:1
- Resource Index
- 32/100
- Enrollment
- 1,875
- Students per teacher
- 21.6:1
- Resource Index
- 35/100
- Enrollment
- 1,808
- Students per teacher
- 20.1:1
- Resource Index
- 34/100
- Enrollment
- 1,735
- Students per teacher
- 17.4:1
- Resource Index
- 52/100
- Enrollment
- 1,710
- Students per teacher
- 19.9:1
- Resource Index
- 31/100
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of Colorado, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~191 students)
Similar student-teacher ratio (~14.7:1)
Next steps
Verify locally before acting on Addenbrooke Classical Academy's federal record.
- Compare Addenbrooke Classical Academy against another school. Compare schools
- Jefferson County School District No. R-1's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Addenbrooke Classical Academy
How many students attend Addenbrooke Classical Academy?
Addenbrooke Classical Academy has 191 students enrolled. It is a high school in Lakewood, CO.
What is the student-teacher ratio at Addenbrooke Classical Academy?
The student-teacher ratio at Addenbrooke Classical Academy is 14.7:1, which is 11% lower than the Colorado average of 16.6:1 and 6% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What is the racial and ethnic makeup of Addenbrooke Classical Academy?
The largest demographic group at Addenbrooke Classical Academy is White at 56.5% of enrollment, in Lakewood, CO. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 56.2/100.
What is the Resource Investment Index for Addenbrooke Classical Academy?
Addenbrooke Classical Academy has a Resource Investment Index of 42/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Addenbrooke Classical Academy rank among high schools in Lakewood?
By Resource Investment Index, Addenbrooke Classical Academy ranks #3 of 12 high schools in Lakewood, CO. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Lakewood on the city page.
Is Addenbrooke Classical Academy a good school?
Addenbrooke Classical Academy earns 42/100 on the Resource Investment Index, with class sizes near the Colorado median. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Jefferson County School District No. R-1?
Besides Addenbrooke Classical Academy, Jefferson County School District No. R-1 also operates Arvada West High School (1,923 students), Ralston Valley Senior High School (1,875 students), and Chatfield High School (1,808 students). See the Jefferson County School District No. R-1 district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.