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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
Enrollment
598
Middle
DISTRICT 503 · STATE 462
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
2
0 members
Enrollment and student:teacher ratio compared against other middle schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Grade 6
199
Grade 7
207
Grade 8
192
Student demographics
White
63%
DISTRICT 65% · STATE 49%
Hispanic
29%
DISTRICT 21% · STATE 37%
Black
1%
DISTRICT 1% · STATE 5%
Asian
2%
DISTRICT 6% · STATE 3%
Two+
4%
DISTRICT 7% · STATE 5%
Native American
n/r
Pacific Islander
n/r
n/r: not reliably reported by NCES for this school. Hispanic, Pacific Islander, and Native American enrollment are systematically under-reported in the source data.
Gender split
Male
52%
Female
48%

Discussions

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Test scores

CMAS 2024-25 . % Met or Exceeded Expectations
English Language Arts
60.4%
CO avg 44.9% . +6.0pp since 2023
Math
49.7%
CO avg 36.1% . +2.7pp since 2023
Source: CMAS. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
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
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

7-year change

SY 2017-18 vs SY 2024-25
Enrollment
598
-48 (-7%) vs 2017
Student : Teacher
19.4:1
was 17.7:1
% White
63%
was 67%
% Hispanic
29%
was 23%
% Black
1%
was 0%
% Asian
2%
was 4%
Source: NCES Common Core of Data

About Centennial Middle School

Centennial Middle School operates as a reasonably sized 6-8 campus in BOULDER, Colorado, run under Boulder Valley School District No. Re2. Current enrollment sits at 598 students spanning grades 6 through 8. By comparison, Colorado's public schools average about 462 students each, so Centennial Middle School sits 29% above that benchmark.

Within Boulder Valley School District No. Re2, which oversees 56 schools and 27,988 students, Centennial Middle School is one campus in the system.

In terms of who attends, Centennial Middle School lists that the largest single group is White, at 63% of enrollment; the rest is composed of 29% Hispanic, 4% multiracial. The wider county runs roughly 78% White, putting the school's mix considerably less White than the area baseline.

On the resource side, On paper, Centennial Middle School has 31 full-time-equivalent teachers, translating to a class-load average of around 19.4:1. Statewide, the average ratio sits near 15.9:1, putting Centennial Middle School higher than the state norm the norm. Roughly 33% of students at Centennial Middle School qualify for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal.

With demographic context factored in, Centennial Middle School tracks the demographic baseline. The model predicts 46.6% given the school's FRL share; actual proficiency is 52.5%.

Across the wider county, ACS estimates for Boulder County put median household income runs about $103,994, roughly 64% of adults have completed at least a four-year degree, and the poverty rate sits near 4%. Across Boulder County's 86 public schools (combined enrollment of about 42,200 students), Centennial Middle School is one campus in the mix.

Crest View Elementary School is the nearest neighboring public school, about 0.6 miles from this campus. 8 of the 8 nearest public schools sit inside a five-mile radius. Ranking that nearby cluster on reported proficiency puts Centennial Middle School at 4th of 7; the average score across the group is 47.4%.

Geographically, the school is in a metropolitan area.

Over the past 7-year window. Over the past 7-year window, the student count contracted 7%: 646 students in 2018 compared to 598 in 2025. The Hispanic share of enrollment grew from 23% to 29% over that span. The student-to-teacher ratio loosened from 17.7:1 in 2018 to 19.4:1 today.

On this page, recent activity here tends to focus on pickup logistics, teacher feedback, and after-school programs. The community welcomes input from current and former families.

Boulder County at a glance

View full county profile
Population
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

School name
Centennial Middle School
District
Boulder Valley School District No. Re2
Address
2205 NORWOOD AVENUE, BOULDER, CO 80304
Phone
(720) 561-5441
County
Boulder County
Level
Middle
Grade range
06–08
Total enrollment
598
Teachers (FTE)
31
Student–teacher ratio
19.4:1
Free/Reduced lunch
198 (33%)
Locale
12-City: Mid-size
NCES ID
080249000108
Charter school
No
Virtual school
No

Related schools

Other schools in Boulder Valley School District No. Re2
Other schools in BOULDER
Nearby schools

Frequently asked questions

About Centennial Middle School
How 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.
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