1
What's the vibe like in the hallways at Centennial Middle School right now?
Community prompt from u/allk12. Replies below.
Enrollment
598
Middle
DISTRICT 503 · STATE 462
SCHOOL COMMUNITY·BOULDER VALLEY SCHOOL DISTRICT NO. RE2·NCES 080249000108
Centennial Middle School
2205 NORWOOD AVENUE, BOULDER, CO 80304 · (720) 561-5441 · Boulder County
GRADES 06–08MIDDLE12-CITYREGULAR SCHOOL598 STUDENTS
Student : Teacher
19.4:1
31 FTE teachers
DISTRICT 16.9:1 · STATE 15.9:1
Free / Reduced Lunch
33%
198 students
DISTRICT 30% · STATE 50%
Community
6
0 members
Enrollment and student:teacher ratio compared against other middle schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 6 | 199 | 33% |
| Grade 7 | 207 | 35% |
| Grade 8 | 192 | 32% |
Student demographics
51%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 53% · 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
60.4%
CO avg 44.9% . +6.0pp since 2023
Math
49.7%
CO avg 36.1% . +2.7pp since 2023
What this means: On the CMAS, Colorado's statewide test, about 60 of every 100 students at this school read and write at grade level and about 50 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 6 points since 2023, while math scores are up about 3 points.
CMAS results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 60.4% | 49.7% |
| 2023-24 | 54.4% | 47.0% |
% Met or Exceeded Expectations, all students and all tested grades.
Source: CMAS. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
52.5%
composite math + reading, all grades
Predicted
46.6%
based on CO schools with similar FRL share
Beats by
+5.8pp
above demographic expectation
What this means: About 53% of students here test proficient in math and reading, compared with the roughly 47% typical for Colorado schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Colorado's top nor bottom 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Schools most like Centennial Middle School
Centennial Middle School's state test result (52.5% proficient) is higher than 5 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Centennial Middle School this school | 598 | 33.1% | 52.5% |
| Severance Middle School WINDSOR | 670 | 33.6% | 38.9% |
| Coal Ridge Middle School FIRESTONE | 727 | 31.9% | 39.7% |
| Broomfield Heights Middle School BROOMFIELD | 490 | 34.3% | 45.3% |
| Westview Middle School LONGMONT | 621 | 36.1% | 50.5% |
| Euclid Middle School LITTLETON | 631 | 31.1% | 50.9% |
Matched among Colorado middle schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where Centennial Middle School ranks
Among middle schools| Measure | This school | In Colorado | In Boulder County |
|---|---|---|---|
| State test proficiency ranked highest first | 52.5% | #44 of 241 | #7 of 13 |
| Math proficiency ranked highest first | 49.7% | #39 of 244 ▲ 1 | #7 of 13 ▼ 2 |
| Reading proficiency ranked highest first | 60.4% | #51 of 246 ▲ 14 | #7 of 13 ▲ 1 |
| Enrollment ranked largest first | 598 | #83 of 278 | #5 of 13 |
| Students per teacher ranked fewest first | 19.4:1 | #210 of 227 | #13 of 13 |
| Diversity index ranked most diverse first | 51.0% | #112 of 227 | #7 of 13 |
| Free and reduced lunch ranked highest share first | 33.1% | #176 of 246 | #7 of 13 |
| Enrollment change since 2017-18 ranked steepest decline first | -7.4% | #133 of 169 | #10 of 12 |
Ranked against other public middle 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
598
+50 (+9%) vs 2020
+17% since 1990-91, when it was 509
Student : Teacher
19.4:1
was 17.1:1
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 | 598 | 30.9 | 19.4:1 | 33% (198) |
| 2023-24 | 619 | 32.4 | 19.1:1 | 34% (211) |
| 2022-23 | 567 | 33.3 | 17.0:1 | 30% (168) |
| 2020-21 | 548 | 32 | 17.1:1 | 28% (154) |
| 2017-18 | 646 | 36.5 | 17.7:1 | 23% (147) |
| 2015-16 | 630 | 34 | 18.5:1 | 24% (152) |
| 2010-11 | 562 | 35 | 16.1:1 | 21% (120) |
| 2000-01 | 689 | 37 | 18.6:1 | 4% (28) |
| 1990-91 | 509 | 28 | 18.2:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Centennial Middle School.
Since 2017-18: students down 7% (646 to 598); teachers down 15% (36.5 to 30.9).
About Centennial Middle School
Federal records list Centennial Middle School as a middle school in BOULDER, Colorado. A total of 598 students attend the school, which covers grades 6 through 8. The average for middle schools in Colorado is about 462 students, so this school is 29% larger than average.
Boulder Valley School District No. Re2 is made up of 56 schools with 27,988 students in all.
By race and ethnicity, Centennial Middle School is 63% White. Beyond that, enrollment is 29% Hispanic and 4% multiracial. In Boulder County overall, about 78% of residents are White. The chance that two students picked at random at Centennial Middle School belong to different racial or ethnic groups, known as the diversity index, is 51%.
The ratio of students to teachers is 19.4:1, with 30.9 full-time-equivalent teachers on staff. For comparison, middle schools in Colorado average 15.9:1. The percentage of students eligible for free or reduced-price lunch is 33%. That is close to the 33% average for public schools in Boulder County.
Based on student poverty, the model expects 46.6% at Centennial Middle School; the school's average proficiency rate on state tests is 52.5%.
According to the American Community Survey, in Boulder County, median household income is about $103,994, roughly 64% of adults have a four-year degree or more, and about 4% of residents live below the federal poverty line. Centennial Middle School is one of 86 public schools in Boulder County, which together enroll about 42,200 students.
Crest View Elementary School is the public school closest to Centennial Middle School, about 0.6 miles away. Centennial Middle School has at least 8 other public schools within five miles. Centennial Middle School ranks 4th of 7 among nearby schools on average proficiency, with 52.5% against a local average of 47.4%.
Centennial Middle School falls in the City: Mid-size locale category, used for schools inside a principal city with a population between 100,000 and 250,000.
Centennial Middle School saw enrollment rise 9% between 2020-21 and 2024-25. The ratio of students to teachers went from 17.1:1 to 19.4:1 over the same years.
The Centennial Middle School community page is open for posts about school events, clubs, and volunteer needs. Posting is open to anyone connected to the school.
Boulder County at a glance
View full county profilePopulation
328,961
Census ACS
Median income
$103,994
Household, ACS
Bachelor's+
64%
Adults 25+
Poverty rate
4%
Below federal line
Schools in county
86
42,200 students
Quick facts
Related schools
Other schools in Boulder Valley School District No. Re2
- Boulder High SchoolHigh · 1,939 students
- Fairview High SchoolHigh · 1,863 students
- Broomfield High SchoolHigh · 1,693 students
- Centaurus High SchoolHigh · 1,557 students
- Peak to Peak Charter SchoolCombined · 1,447 students
- Monarch High SchoolHigh · 1,431 students
Other schools in BOULDER
- Boulder High SchoolHigh · 1,939 students
- Fairview High SchoolHigh · 1,863 students
- Williamsburg Academy of ColoradoHigh · 622 students
- Southern Hills Middle SchoolMiddle · 502 students
- Nevin Platt Middle SchoolMiddle · 483 students
- Manhattan Middle School of the Arts and AcademicsMiddle · 482 students
Other Centennial Middle schools
12 other US public schools in 11 states are named Centennial Middle. Centennial Middle School is the 10th largest of the 13.
- Centennial Middle SchoolMONTROSE, CO · 540 students
- Centennial MiddleLINO LAKES, MN · 1,595 students
- Centennial MiddlePROVO, UT · 1,073 students
- Centennial Middle SchoolBroken Arrow, OK · 1,060 students
- Centennial Middle SchoolSOUTH LYON, MI · 898 students
Nearby schools
- Crest View Elementary School0.6 mi · 390
- Columbine Elementary School0.9 mi · 369
- Foothill Elementary School1.0 mi · 419
- Whittier Elementary School1.6 mi · 269
- Casey Middle School1.6 mi · 363
- Mapleton Early Childhood Center1.9 mi · 68
Frequently asked questions
About Centennial Middle SchoolHow large is Centennial Middle School?
Centennial Middle School enrolls approximately 598 students in grades 06-08.
What grades does Centennial Middle School serve?
Centennial Middle School serves grades 06-08.
How many teachers does Centennial Middle School have?
Centennial Middle School employs 31 FTE teachers, for a student-to-teacher ratio of 19.4:1.
What is the student diversity at Centennial Middle School?
Student demographics at Centennial Middle School are roughly 63% White, 29% Hispanic, 1% Black, 2% Asian, 4% Two or more.
Is Centennial Middle School public or private?
Centennial Middle School is a public K-12 school, overseen by Boulder Valley School District No. Re2.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.