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SCHOOL COMMUNITY·NATRONA COUNTY SCHOOL DISTRICT #1·NCES 560451000470

Centennial Middle School

1421 Waterford, Casper, WY 82609 · (307) 253-2900 · Natrona County
GRADES 06–08MIDDLE13-CITYREGULAR SCHOOL755 STUDENTS
Enrollment
755
Middle
DISTRICT 663 · STATE 319
Student : Teacher
14.7:1
52 FTE teachers
DISTRICT 13.8:1 · STATE 12.3:1
Free / Reduced Lunch
35%
265 students
DISTRICT 50% · STATE 47%
Community
1
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

GradeStudentsShare
Grade 624532%
Grade 725033%
Grade 826034%
Student demographics
35%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 38% · STATE 41% · US 70%
White
60180%
DISTRICT 77% · STATE 75% · US 43%
Hispanic
10414%
DISTRICT 15% · STATE 16% · US 30%
Black
81%
DISTRICT 1% · STATE 1% · US 15%
Asian
51%
DISTRICT 1% · STATE 1% · US 6%
Two+
334%
DISTRICT 5% · STATE 4% · US 5%
Native American
30%
DISTRICT 1% · STATE 3% · US 1%
Pacific Islander
10%
DISTRICT 0% · STATE 0% · US 0%
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
Male
38751%
Female
36849%

Discussions

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Test scores

WY-TOPP 2024-25 . % Proficient + Advanced
English Language Arts
57.2%
WY avg 56.0%
Math
40.8%
WY avg 51.3%

What this means: On the WY-TOPP, Wyoming's statewide test, about 57 of every 100 students at this school read and write at grade level and about 41 of 100 do math at grade level. Across all Wyoming schools, those numbers are about 56 and 51.

Source: WY-TOPP. 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
48.8%
composite math + reading, all grades
Predicted
59.9%
based on WY schools with similar FRL share
Beats by
-11.1pp
below demographic expectation

What this means: About 49% of students here test proficient in math and reading, compared with the roughly 60% typical for Wyoming 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 Wyoming'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 →

Where Centennial Middle School ranks

Among middle schools
MeasureThis schoolIn Wyoming
State test proficiency
ranked highest first
48.8%#27 of 40
Math proficiency
ranked highest first
40.8%#34 of 44
Reading proficiency
ranked highest first
57.2%#29 of 45
Enrollment
ranked largest first
755#4 of 61
Students per teacher
ranked fewest first
14.7:1#28 of 37
Diversity index
ranked most diverse first
34.5%#22 of 37
Free and reduced lunch
ranked highest share first
35.1%#32 of 42
Enrollment change since 2017-18
ranked fastest growth first
+1.3%#13 of 14
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.

4-year change

SY 2020-21 vs SY 2024-25
Enrollment
755
-52 (-6%) vs 2020
+12% since 1990-91, when it was 675
Student : Teacher
14.7:1
was 14.4:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2575551.514.7:135% (265)
2023-2476750.915.1:132% (244)
2022-2379654.214.7:131% (246)
2020-218075614.4:135% (280)
2017-1874554.513.7:134% (257)
2015-166984914.2:140% (276)
2010-11610N/AN/A34% (209)
2000-015854313.6:143% (251)
1990-916754515.0:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Centennial Middle School.

About Centennial Middle School

Centennial Middle School is a public middle school in Casper, Wyoming. Enrollment totals 755 students across grades 6 through 8. That puts enrollment 137% above the 319-student average for middle schools in Wyoming.

Natrona County School District #1 operates 27 schools. Combined enrollment is 12,352 students.

Of every 100 students at Centennial Middle School, about 80 are White. The school is also 14% Hispanic and 4% multiracial. The White share of the county population is higher, at 89%. On the diversity index, which measures the chance that two random students are from different groups, Centennial Middle School scores 35%.

Centennial Middle School reported 51.5 full-time-equivalent teachers in 2024-25, a ratio of 14.7:1. Middle schools in Wyoming have an average ratio of 12.3:1. Roughly 35% of students at Centennial Middle School can receive free or reduced-price lunch. Public schools in Natrona County average 46%.

The allk12 BeatsExpectations score for Centennial Middle School is -11.1 points: 48.8% actual, 59.9% predicted.

For Natrona County, Census Bureau data show median household income comes to about $72,156, about 28% of adults have at least a bachelor's degree, and roughly 7% of residents are in poverty. There are 29 public schools in the county, enrolling about 12,650, Centennial Middle School among them.

Summit Elementary School is about 0.5 miles away, making it the nearest public school. There are at least 8 more public schools inside five miles. Local comparison: Centennial Middle School ranks 7th of 9 nearby schools, at 48.8% versus a 53.1% average.

In the federal locale system, Centennial Middle School is coded City: Small, for schools inside a principal city with a population under 100,000.

The school's enrollment decreased 6% from 2020-21 to 2024-25.

Parents, students, and staff can share information on athletics, class schedules, and weather closures here. Members of the school community can share what they know.

Natrona County at a glance

View full county profile
Population
79,977
Census ACS
Median income
$72,156
Household, ACS
Bachelor's+
28%
Adults 25+
Poverty rate
7%
Below federal line
Schools in county
29
12,650 students

Quick facts

School name
Centennial Middle School
District
Natrona County School District #1
Address
1421 Waterford, Casper, WY 82609
Phone
(307) 253-2900
County
Natrona County
Level
Middle
Grade range
06–08
Total enrollment
755
Teachers (FTE)
52
Student–teacher ratio
14.7:1
Free and reduced lunch
265 (35%)
Locale
13-City: Small
NCES ID
560451000470
Charter school
No
Virtual school
No

Related schools

Other schools in Natrona County School District #1
Other schools in Casper
Nearby schools

Frequently asked questions

About Centennial Middle School
How many students attend Centennial Middle School?
Centennial Middle School enrolls approximately 755 students in grades 06-08.
What age range does Centennial Middle School serve?
Centennial Middle School serves students from grade 06 through grade 08.
How many teachers does Centennial Middle School have?
Centennial Middle School employs 52 FTE teachers, for a student-to-teacher ratio of 14.7:1.
What is the student diversity at Centennial Middle School?
Student demographics at Centennial Middle School are roughly 80% White, 14% Hispanic, 1% Black, 1% Asian, 4% Two or more.
Is Centennial Middle School public or private?
Centennial Middle School is a public K-12 school, overseen by Natrona County School District #1.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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