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#1434 of 2,228 schools in WA

Centennial Middle School

Middle School · Snohomish School District · Snohomish, WA

A Snohomish School District middle school where students score 22 points below what's typical for similar communities.

3000 South Machias Road, Snohomish, WA 98290

  • Math 33% vs WA 38% (2024)
  • Reading 40% vs WA 50% (2024)
  • 22.3:1 student-teacher ratio

Academics

Full Profile · 3/3 metrics
Student Progress8.2Excellent40%
Year-over-year improvement in student test scores.
View breakdown
Years of Data13
Annual Change-0.91 pts/yr
Data Period2009–2024
TrendStable
Academics4.4Below Average35%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency32.9% (2024 SBA)
Reading/ELA Proficiency39.8% (2024 SBA)
Math vs. State Avg-5.5 pts
Reading vs. State Avg-10.3 pts
Overall Proficiency36% (2024 SBA, Math+ELA)
Expected (poverty-adj.)59% (model expectation from 2024 SBA)
vs. Expected-22.3 pts
Adjusted Percentile25th
Resources & Environment3.7Needs Improvement25%
Student-teacher ratio, district spending per student, and attendance.
View breakdown
Student-Teacher Ratio22.3:1
District spending per student$17,157
Chronic Absenteeism27.2%

Students at Centennial Middle School score 36% proficient, which is below what's typical for similar communities (expected: 59%).

How we calculate scores →

2024 SBA proficiency

Most recent published year. School vs. WA average.

Math Proficiency33%(2024 SBA)
School
State
38%(2024 SBA)
ELA Proficiency40%(2024 SBA)
School
State
50%(2024 SBA)

Trend

↓ Declining

Proficiency has fallen 23 points since 2018, to 36% in 2024, across a 16-year record (2009–2024).

Show all 13 years
2009
Math
54%
ELA
69%
2010
Math
52%
ELA
59%
2011
Math
50%
ELA
61%
2012
Math
46%
ELA
64%
2013
Math
50%
ELA
67%
2014
Math
38%
ELA
48%
2015
Math
45%
ELA
59%
2016
Math
53%
ELA
66%
2017
Math
49%
ELA
65%
2018
Math
52%
ELA
67%
2019
Math
52%
ELA
67%
2022
Math
40%
ELA
52%
2024
Math
33%
ELA
40%

Multi-year averages used by the rating model: math 45% (multi-year average, 2009-2024) · reading/ELA 58% (multi-year average, 2009-2024)

Based on 32 test records from WA state assessments and EdFacts (NCES).

Equity & diversity

Shown separately, not included in the overall score

Free/reduced lunch

28.2%

Students qualifying for federal meal assistance

How we rate schools

A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.

See how we rate

The neighborhood

Where Centennial Middle School sits, and what the surrounding area looks like.

Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries. Open the Seattle map →

Getting around & local context

  • Walk 7Car-Dependent
  • Bike 46Somewhat Bikeable
  • City Safety: High1,773/100K

Powered byWalk Score

FBI Uniform Crime Reporting · 2024 · city context (Snohomish), not school-level safety or attendance eligibility. Source details

Source period: 2024. Freshness not available.

Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)

Median income

$129,656

Median home value

$717,600

Median rent

$1,591/mo

College educated

38.1%

Homeownership

81.5%

Poverty rate

5%

ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 98290; this is area context, not an attendance boundary.

Programs & students

Programs & Offerings

Gifted & Talented ProgramAvailable
This school offers a gifted and talented program for qualifying students.·CRDC via Urban Institute · SY 2021–22

Compare nearby

Nearby same-level schools

4 from a 5-mile search; district fallback available

SchoolScoreGradesDistanceEnrollmentCompare
Lake Stevens Middle SchoolEnrollment path unverified6.66–72.2 mi710Compare →
Cavelero Mid High SchoolEnrollment path unverified6.18–92.5 mi1,455Compare →
Parent PartnershipEnrollment path unverified5.7K–123.0 mi103Compare →
Snohomish CenterEnrollment path unverifiedNot ratedPK–123.0 mi16Compare →

Distance is proximity only; it is not attendance eligibility.

Enrollment path unverified: Potential public school; its attendance or application path has not been classified.

Snohomish School District

Schools in district
18
Rank in district
#11 of 15
District spending per student
$17,157NCES F-33 · FY 2023 · This annual source is three years behind the current year.
District child poverty rate
5.0%Census SAIPE · 2024

Centennial Middle School is listed in Snohomish School District; a district label does not verify attendance for an address.

About Centennial Middle School

Centennial Middle School is a public middle school in Snohomish, WA, part of Snohomish School District, serving approximately 735 students in grades 7th-8th with a 22.3:1 student-teacher ratio. It holds a MySchoolScout rating of 5.7 out of 10 and ranks #1,434 of 2,228 schools in WA. State assessment records show 45% math proficiency (multi-year average, 2009-2024) and 58% reading/ELA proficiency (multi-year average, 2009-2024).

Frequently asked questions

Common questions about Centennial Middle School

What grades does Centennial Middle School serve?

Centennial Middle School serves students in grades 7th through 8th.

How many students attend Centennial Middle School?

Centennial Middle School has an enrollment of approximately 735 students.

What is the student-teacher ratio at Centennial Middle School?

The student-teacher ratio at Centennial Middle School is 22.3:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Centennial Middle School rank in WA?

Centennial Middle School ranks #1,434 of 2,228 schools in WA.

What is Centennial Middle School's MySchoolScout rating?

Centennial Middle School has a current MySchoolScout rating of 5.7 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.

What are the test scores at Centennial Middle School?

Based on loaded state assessment records, Centennial Middle School has 45% math proficiency (multi-year average, 2009-2024) and 58% reading/ELA proficiency (multi-year average, 2009-2024).

Is Centennial Middle School a charter school?

No, Centennial Middle School is not a charter school. It is a traditional public school operated by the local school district.

Is Centennial Middle School a Title I school?

No, Centennial Middle School is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Centennial Middle School?

28.2% of students at Centennial Middle School qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.

School factsNCES Common Core of Data (CCD) (SY 2023–24)

Grades
7th – 8th
Enrollment
735
Student-Teacher Ratio
22.3:1
Teachers (FTE)
33
Type
regular
Setting
Midsize Suburb
County
Snohomish County
Chronic Absenteeism (SY 2022-23)
27.2%
Area population (ZIP 98290)
39,732
Area average commute
35.5 min
Area median age
42.2
About this school's data

Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.

School directory (enrollment, grades, staff, contact)
NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
  • Source period: SY 2023–24. A newer release may be available.
MySchoolScout rating and rank
MySchoolScout ranking model · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
Math proficiency
State department of education · 2024 SBA · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Available for part of the eligible units; results may not represent the full area.
  • Derived from source records rather than read directly from one field.
Reading/ELA proficiency
State department of education · 2024 SBA · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Available for part of the eligible units; results may not represent the full area.
  • Derived from source records rather than read directly from one field.
Student progress (growth)
NCES EdFacts · Mixed source periods · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Available for part of the eligible units; results may not represent the full area.
  • Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
Neighborhood (income, housing, education)
U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
  • Older source: ACS 2019–2023 5-year estimates. Use as historical context.
  • Reported for the ZCTA for ZIP 98290; this does not measure the attendance area.
Programs (AP/IB, athletics, gifted)
CRDC via Urban Institute · SY 2021–22 · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: SY 2021–22. A newer release may be available.

Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2024; directory SY 2023–24

About our data · How we calculate scores

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