Excellent
#58 of 1,226 schools in OR
Top 5% in state
Annex Charter School
Elementary School · Annex Sd 29 · Ontario, OR
A charter elementary school in Ontario, OR where students score 8 points above what's typical for similar communities.
402 Annex Rd, Ontario, OR 97914
- Math 41% vs OR 32% (2025)
- Reading 36% vs OR 43% (2025)
- 8.8:1 student-teacher ratio
Academics
Full Profile · 3/3 metricsView breakdown
View breakdown
View breakdown
Students at Annex Charter School score 39% proficient, which is above what's typical for similar communities (expected: 31%).
2025 OSAS proficiency
Most recent published year. School vs. OR average.
Trend
→ SteadyProficiency is down 31 points across the 17-year record (2009–2025) and has held near 39% recently.
Show all 13 years
Multi-year averages used by the rating model: math 34% (multi-year average, 2009-2025) · reading/ELA 45% (multi-year average, 2009-2025)
Based on 26 test records from OR state assessments and EdFacts (NCES).
Equity & diversity
Shown separately, not included in the overall scoreFree/reduced lunch
72.2%
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 rateThe neighborhood
Where Annex Charter School sits, and what the surrounding area looks like.
Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries.
Getting around & local context
- Walk 3Car-Dependent
- Bike 31Somewhat Bikeable
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Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)
Median income
$48,442
Median home value
$220,600
Median rent
$813/mo
College educated
14.6%
Homeownership
61.8%
Poverty rate
17.8%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 97914; this is area context, not an attendance boundary.
Compare nearby
Nearby same-level schools
2 from a 5-mile search
| School | Score | Grades | Distance | Enrollment | Compare |
|---|---|---|---|---|---|
| Pioneer Primary SchoolEnrollment path unverified | 4.5 | PK–3 | 1.2 mi | 428 | Compare → |
| Park Intermediate SchoolEnrollment path unverified | 3.6 | 4–5 | 1.8 mi | 199 | Compare → |
Distance is proximity only; it is not attendance eligibility.
Enrollment path unverified: Potential public school; its attendance or application path has not been classified.
Annex Sd 29
- Schools in district
- 1
- Rank in district
- #1 of 1
- District spending per student
- $26,183NCES F-33 · FY 2023 · This annual source is three years behind the current year.
- District child poverty rate
- 22.4%Census SAIPE · 2024
Annex Charter School is listed in Annex SD 29; a district label does not verify attendance for an address.
About Annex Charter School
Annex Charter School is a public elementary school in Ontario, OR, part of Annex Sd 29, serving approximately 79 students in grades Kindergarten-8th with a 8.8:1 student-teacher ratio. It holds a MySchoolScout rating of 9.1 out of 10 and ranks #58 of 1,226 schools in OR. State assessment records show 34% math proficiency (multi-year average, 2009-2025) and 45% reading/ELA proficiency (multi-year average, 2009-2025).
What's said publicly about Annex Charter School
Synthesized from public, attributable sources. Updated May 2026.
Sources (1)
Frequently asked questions
Common questions about Annex Charter School
What grades does Annex Charter School serve?
Annex Charter School serves students in grades Kindergarten through 8th.
How many students attend Annex Charter School?
Annex Charter School has an enrollment of approximately 79 students.
What is the student-teacher ratio at Annex Charter School?
The student-teacher ratio at Annex Charter School is 8.8:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Annex Charter School rank in OR?
Annex Charter School ranks #58 of 1,226 schools in OR.
What is Annex Charter School's MySchoolScout rating?
Annex Charter School has a current MySchoolScout rating of 9.1 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 Annex Charter School?
Based on loaded state assessment records, Annex Charter School has 34% math proficiency (multi-year average, 2009-2025) and 45% reading/ELA proficiency (multi-year average, 2009-2025).
Is Annex Charter School a charter school?
Yes, Annex Charter School is a charter school. Charter schools are publicly funded but independently operated, often with more flexibility in curriculum and teaching methods.
Is Annex Charter School a Title I school?
No, Annex Charter School is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Annex Charter School?
72.2% of students at Annex Charter 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
- Kindergarten – 8th
- Enrollment
- 79
- Student-Teacher Ratio
- 8.8:1
- Teachers (FTE)
- 9
- Type
- regular
- Setting
- Fringe Rural
- County
- Malheur County
- Chronic Absenteeism (SY 2022-23)
- 24.1%
- Phone
- (541) 262-3280
- Area population (ZIP 97914)
- 19,879
- Area average commute
- 15.8 min
- Area median age
- 36.2
Official sources & links
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 · 2025 OSAS · 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 · 2025 OSAS · 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 97914; this does not measure the attendance area.
Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2025; directory SY 2023–24
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