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Best kept secret at Addenbrooke Classical Grammar School?
Community prompt from u/allk12. Replies below.
Enrollment
774
Elementary
DISTRICT 404 · STATE 379
SCHOOL COMMUNITY·JEFFERSON COUNTY SCHOOL DISTRICT NO. R-1·NCES 080480006643
Addenbrooke Classical Grammar School
7114 WEST JEFFERSON AVENUE, LAKEWOOD, CO 80235 · (303) 986-5791 · Jefferson County
GRADES PK–08ELEMENTARY21-SUBURBCHARTERREGULAR SCHOOL774 STUDENTS
B
allk12 Grade
Scored higher than 62% of Colorado public elementary schools
- BTest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- ·Beats expectations Not available for this school, so the grade uses the other parts.
- ·Three-year trend Not available for this school, so the grade uses the other parts.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Colorado public elementary schools
Student : Teacher
17.1:1
45 FTE teachers
DISTRICT 15.9:1 · STATE 16.6:1
Free / Reduced Lunch
,
Title I proxy
DISTRICT 35% · STATE 50%
Community
6
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Pre-K | 53 | 7% |
| Kindergarten | 81 | 10% |
| Grade 1 | 76 | 10% |
| Grade 2 | 89 | 11% |
| Grade 3 | 92 | 12% |
| Grade 4 | 81 | 10% |
| Grade 5 | 78 | 10% |
| Grade 6 | 77 | 10% |
| Grade 7 | 73 | 9% |
| Grade 8 | 74 | 10% |
This year's kindergarten class (81) is 9% larger than its 8th grade class (74).
Student demographics
53%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 52% · STATE 62% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Test scores
CMAS 2024-25 . % Met or Exceeded ExpectationsEnglish Language Arts
50.7%
CO avg 44.9% . +4.1pp since 2023
Math
46.4%
CO avg 36.1% . +4.9pp since 2023
What this means: On the CMAS, Colorado's statewide test, about 51 of every 100 students at this school read and write at grade level and about 46 of 100 do math at grade level. Across all Colorado schools, those numbers are about 45 and 36. Reading and writing scores are up about 4 points since 2023, while math scores are up about 5 points.
CMAS results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 50.7% | 46.4% |
| 2023-24 | 46.6% | 41.5% |
% Met or Exceeded Expectations, all students and all tested grades.
Source: CMAS. All students, all grades. See all years and grades →
Where Addenbrooke Classical Grammar School ranks
Among elementary schools| Measure | This school | In Colorado | In Jefferson County |
|---|---|---|---|
| Math proficiency ranked highest first | 46.4% | #314 of 940 ▲ 55 | #40 of 85 ▲ 5 |
| Reading proficiency ranked highest first | 50.7% | #359 of 946 ▲ 44 | #47 of 85 ▲ 8 |
| Enrollment ranked largest first | 774 | #40 of 1,056 | #4 of 89 |
| Students per teacher ranked fewest first | 17.1:1 | #675 of 896 | #59 of 86 |
| Diversity index ranked most diverse first | 52.6% | #374 of 896 | #25 of 86 |
| Enrollment change since 2017-18 ranked fastest growth first | +95.9% | #6 of 200 | #2 of 21 |
Ranked against other public elementary schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
774
+337 (+77%) vs 2020
Student : Teacher
17.1:1
was 17.5:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 774 | 45.1 | 17.1:1 | N/A |
| 2023-24 | 760 | 43.2 | 17.6:1 | N/A |
| 2022-23 | 728 | 42 | 17.4:1 | N/A |
| 2020-21 | 437 | 25 | 17.5:1 | N/A |
| 2017-18 | 395 | 21.3 | 18.5:1 | 27% (108) |
| 2015-16 | 213 | 13 | 16.4:1 | 26% (56) |
Source: NCES Common Core of Data. Rows are the federal collections on file for Addenbrooke Classical Grammar School.
Since 2017-18: students up 96% (395 to 774); teachers up 112% (21.3 to 45.1).
About Addenbrooke Classical Grammar School
Federal records list Addenbrooke Classical Grammar School as an elementary school in LAKEWOOD, Colorado. It has an enrollment of 774 students in pre-K through 8. On average, elementary schools in Colorado enroll around 379, and this school is 104% larger than that mark.
Jefferson County School District No. R-1 is made up of 148 schools with 74,935 students in all.
The share of White students at Addenbrooke Classical Grammar School is 62%, a majority. Other students are 30% Hispanic, 3% Asian, and 3% multiracial. That is lower than the 80% White share among all Jefferson County residents. A diversity index of 53% means there is a 53% chance two randomly chosen students at Addenbrooke Classical Grammar School are from different groups.
On staff are 45.1 full-time-equivalent teachers; the student-to-teacher ratio is 17.1:1. The average for elementary schools in Colorado is about 16.6:1.
On the allk12 Grade, Addenbrooke Classical Grammar School lands at B, ahead of 62% of Colorado public elementary schools.
In the surrounding county, Jefferson County, the median household earns about $110,656 a year, 52% of adults hold a bachelor's degree or higher, and about 4% of residents live below the federal poverty line. Counting Addenbrooke Classical Grammar School, Jefferson County has 168 public schools.
Addenbrooke Classical Academy, about 0.4 miles away, is the closest public school. Counting only straight-line distance, at least 8 other public schools are within five miles.
The school's locale code, Suburb: Large, means it is in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more. Addenbrooke Classical Grammar School is a charter school, a type of public school that operates under a charter.
Addenbrooke Classical Grammar School enrolled 437 in 2020-21 and 774 in 2024-25. Changes in grade configuration can produce shifts of this size.
This page collects posts and questions about Addenbrooke Classical Grammar School, such as fundraisers, report cards, and school supplies. Current and former families are welcome to add their experience.
Jefferson County at a glance
View full county profilePopulation
579,377
Census ACS
Median income
$110,656
Household, ACS
Bachelor's+
52%
Adults 25+
Poverty rate
4%
Below federal line
Schools in county
168
74,739 students
Quick facts
Related schools
Other schools in Jefferson County School District No. R-1
- Arvada West High SchoolHigh · 1,923 students
- Ralston Valley Senior High SchoolHigh · 1,875 students
- Chatfield High SchoolHigh · 1,808 students
- Lakewood High SchoolHigh · 1,735 students
- Columbine High SchoolHigh · 1,710 students
- Golden High SchoolHigh · 1,469 students
Other schools in LAKEWOOD
- Lakewood High SchoolHigh · 1,735 students
- Bear Creek High SchoolHigh · 1,344 students
- Green Mountain High SchoolHigh · 1,071 students
- Alameda International Junior/Senior High SchoolHigh · 1,002 students
- Bear Creek K-8 SchoolElementary · 863 students
- Dunstan Middle SchoolMiddle · 798 students
Nearby schools
- Addenbrooke Classical Academy0.4 mi · 191
- Rocky Mountain Youth Services Center0.7 mi · 13
- John F Kennedy High School1.3 mi · 681
- Traylor Academy1.3 mi · 300
- Bear Valley International School1.5 mi · 313
- Sabin World School1.9 mi · 559
Frequently asked questions
About Addenbrooke Classical Grammar SchoolWhat is the total enrollment at Addenbrooke Classical Grammar School?
Addenbrooke Classical Grammar School enrolls approximately 774 students in grades PK-08.
What age range does Addenbrooke Classical Grammar School serve?
Addenbrooke Classical Grammar School serves students from grade PK through grade 08.
How many students per teacher at Addenbrooke Classical Grammar School?
Approximately 17.1:1 students per teacher at Addenbrooke Classical Grammar School.
How diverse is Addenbrooke Classical Grammar School?
Addenbrooke Classical Grammar School reports a student body of 62% White, 30% Hispanic, 1% Black, 3% Asian, 3% Two or more.
Is Addenbrooke Classical Grammar School public or private?
Addenbrooke Classical Grammar School is a public K-12 school operated as a charter, overseen by Jefferson County School District No. R-1.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.