Needs Improvement
#1198 of 1,226 schools in OR
Centennial High School
High School · Centennial SD 28J
3505 SE 182nd Ave, Gresham, OR 97030
Enrollment
1,731
Student-Teacher
25.8:1
Score
3.3
Grades
9th – 12th
Enrollment
1,731
Student-Teacher
25.8:1
Score
3.3
Grades
9th – 12th
Updated
2022-23
Updated 2022-23
How this school compares
In Gresham
#20 of 22
public schools
Oregon high schools
#237 of 250
In district
#8 of 9
Centennial SD 28J
About Centennial High School
Centennial High School serves 1,731 students in grades 9-12 in Gresham, Oregon, operating with 67 full-time equivalent teachers for a student-teacher ratio of 25.8:1. This regular public high school has significant room for academic growth, with 34% of students achieving proficiency in English Language Arts and 13% reaching proficiency in mathematics. The school ranks in the 6th percentile among Oregon high schools, indicating ongoing challenges that the school community is working to address.
Located at 3505 SE 182nd Ave, Centennial serves a diverse community where the median household income is $61,285 and 21% of residents hold bachelor's degrees or higher. The surrounding neighborhood has a poverty rate of 17.7%, reflecting the socioeconomic challenges that many students face. Despite these hurdles, the school continues its mission to support student development and prepare graduates for their next steps.
With its substantial enrollment, Centennial offers the resources and opportunities that come with being a large high school, while working to improve academic outcomes for its student body. The school sits in a large suburban setting in Multnomah County, serving families in a community where the median home value is $373,800.
What Parents Should Know
The student-teacher ratio at Centennial High School is 25.8:1, which is higher than the national average. This may mean larger class sizes, so parents should ask about classroom support, teaching assistants, and how the school differentiates instruction for students who need extra help.
Score Breakdown
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Centennial High School — Students at Centennial High School score 23% proficient, which is below what's typical for similar communities (expected: 34%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
61.5%
Students qualifying for federal meal assistance
Test Scores OR OSAS (2024-25)
Based on 6 test records from OR state assessments. About our data
Proficiency Trend
↓ DecliningAverage proficiency (% at or above grade level) across Math & ELA over time.
Source: EdFacts (NCES) and state assessment data. Growth score: 2.4/10.
How Centennial High School Compares
See how Centennial High School performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Performance Trends
Math proficiency has declined from 30% (2019) to 11.6% (2025). Reading/ELA proficiency has declined from 66% (2019) to 34.4% (2025).
Location
3505 SE 182nd Ave, Gresham, OR 97030
Nearby Alternatives
Families considering Centennial High School may also want to explore other high schools in the area. FRANCISCAN MONTESSORI EARTH SCHOOL (rated 7.9/10, 1.7 miles away, in nearby Portland), which scores notably higher. Another option is OPEN SCHOOL EAST (rated 7.8/10, 1.8 miles away, in nearby Portland), which scores notably higher. Additionally, Pleasant Valley Elementary School (rated 7.4/10, 2.2 miles away), which scores notably higher. For more schools in Gresham, see our Gresham schools guide .
Nearby Schools
20 within 2.5 mi| School | Distance | Rating |
|---|---|---|
| Meadows Elementary Portland | 0.4 mi | 6.8 |
| PORTLAND ADVENTIST ELEMENTARY SCHOOL Gresham | 0.3 mi | 4.3 |
| Centennial Middle School Portland | 0.4 mi | 4.9 |
| Powell Butte Elementary School Portland | 0.4 mi | 4.8 |
| HARMONY MONTESSORI SCHOOL Portland | 1.1 mi | 6.9 |
| Patrick Lynch Elementary Portland | 1.2 mi | 5.1 |
| MORNINGSTAR MONTESSORI HOUSE OF CHILDREN Portland | 1.3 mi | — |
| Rockwood Preparatory Academy Portland | 1.5 mi | 5.1 |
| Alder Elementary School Portland | 1.5 mi | 6.3 |
| Hollydale Elementary School Gresham | 1.2 mi | 5.1 |
| OPEN SCHOOL EAST Portland | 1.8 mi | 7.8 |
| Parklane Elementary School Portland | 1.7 mi | 6.9 |
| Oliver Middle Portland | 1.7 mi | 2.3 |
| Butler Creek Elementary School Gresham | 1.9 mi | 5.5 |
| Davis Elementary School Portland | 2.0 mi | 6.3 |
| Pleasant Valley Elementary School Gresham | 2.2 mi | 7.4 |
| Hartley Elementary School Portland | 2.2 mi | 5.3 |
| SERENDIPITY CENTER Portland | 1.7 mi | 6.6 |
| FRANCISCAN MONTESSORI EARTH SCHOOL Portland | 1.7 mi | 7.9 |
| Hauton B Lee Middle School Portland | 2.5 mi | 5.2 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 97030 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$61,793
Median Home Value
$418,100
Median Rent
$1,604/mo
Population
38,471
College Educated
21.3%
Homeownership
44.3%
Avg Commute
26.6 min
Poverty Rate
16.3%
Median Age
36.3
Community Profile
The community surrounding Centennial High School has a median household income of $61,793. It is a community where 21% of adults hold a bachelor's degree or higher. The median home value in the area is $418,100, with a median rent of $1,604/month. The area has a poverty rate of 16.3%. The average commute for residents is 27 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Adrienne C. Nelson High School Happy Valley, OR | 3.1 |
| Caldera High School Bend, OR | 3.1 |
| Springfield High School Springfield, OR | 3.5 |
| Canby High School Canby, OR | 3.6 |
| Thurston High School Springfield, OR | 2.9 |
| South Albany High School Albany, OR | 3.8 |
Frequently Asked Questions
Common questions about Centennial High School
What grades does Centennial High School serve?
Centennial High School serves students in grades 9th through 12th.
How many students attend Centennial High School?
Centennial High School has an enrollment of approximately 1,731 students.
What is the student-teacher ratio at Centennial High School?
The student-teacher ratio at Centennial High School is 25.8:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Centennial High School rank in OR?
Centennial High School is ranked #1198 out of 1,226 schools in OR.
What is Centennial High School's MySchoolScout rating?
Centennial High School has a composite rating of 3.3 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.
What are the test scores at Centennial High School?
Based on the most recent state assessment data, Centennial High School has 18.2% math proficiency and 44.8% reading/ELA proficiency.
Is Centennial High School a charter school?
No, Centennial High School is not a charter school. It is a traditional public school operated by the local school district.
Is Centennial High School a Title I school?
No, Centennial High School is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Centennial High School?
61.5% of students at Centennial High 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.
Neighborhood Context
- Walk Score
- 39 Car-Dependent
- Transit Score
- 47 Some Transit
- Bike Score
- 80 Very Bikeable
- City Safety
- High (2,851/100K)
Powered by 
FBI UCR 2024. City-level (Gresham). Data >1 year old.
Quick Facts NCES CCD (SY 2022-23)
- Grades
- 9th – 12th
- Enrollment
- 1,731
- Student-Teacher Ratio
- 25.8:1
- Teachers (FTE)
- 67
- Free/Reduced Lunch
- 61.5%
- Type
- regular
- Setting
- Large Suburb
- County
- Multnomah County
- Phone
- (503) 762-6180
- Data Year
- 2023–2024
Resources & Links
District
Centennial SD 28J- District Enrollment
- 5,513
- Schools in District
- 9
- Per-Pupil Spending
- $17,107
- District Rank
- #8 of 9
How We Rate Schools
Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.
Read our full methodologyRelated reading
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