Elementary school (grades K-5) · Ontario, OR
Annex Charter School
Federal NCES profile for Annex Charter School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 40/100.
The verdict
Annex Charter School earns 40/100 on the Resource Investment Index, with class sizes smaller than 77% of Oregon schools.
- #3 of 6
- elementary schools in Ontario · Resource Index
- 40
- Resource Index · Typical
- 14.6:1
- small classes for Oregon
- 69.5%
- free-lunch eligible
Annex Charter School has class sizes smaller than 77% of Oregon schools. Computed live against every Oregon school reporting to NCES.
By Resource Investment Index, Annex Charter School ranks #3 of 6 elementary schools in Ontario, OR.
School address
CCD year-over-year · 2022-23 → 2023-24
-3 students YoY
Annex Charter School held near 79 students from 2022-23 to 2023-24 (-3 headcount).
Teacher FTE lost 9.5 → 9.0 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-3 students YoY 410135000753 · Ontario, OR Elementary · SMALL · CHARTER
131 enr · 14.6:1 · 69.5% lunch · RII 40
Nearest enrollment peer: Imperial Valley Home School Academy (131 students)
Annex Charter School held near 79 students from 2022-23 to 2023-24 (-3 headcount). Teacher FTE lost 9.5 → 9.0 across the same CCD years. Read with this school → · District book → · Oregon schools → · Find another →
How Annex Charter School compares
Annex Charter School held steady on CCD headcount: ratios and free-lunch share vs Oregon and U.S. means.
| Metric | This school | vs Oregon | Oregon avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 14.6:1 | ▼ 17% | 17.6:1 | 15.7:1 |
| Free-lunch eligible | 69.5% | ▲ 32% | 52.8% | 51.7% |
| Enrollment | 131 | top 86% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Equity indicators methodology
Student demographics
Largest group: White at 75.6% of enrollment.
Simpson diversity index - at 37.9, Annex Charter School is less mixed than the Oregon school average of 47.1.
Programs
District finance for Annex Sd 29 reports $17,176 per pupil (NCES F-33) - open the district page for the full revenue mix.
Similar elementary schools in Ontario
5 comparable elementary schools (grades K-5) serving the same city.
Nationwide elementary schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~131 students)
Frequently asked questions about Annex Charter School
How many students attend Annex Charter School?
Annex Charter School has 131 students enrolled. It is an elementary school in Ontario, OR. CCD year-over-year: 82 (2022-23) → 79 (2023-24), nearly flat (-3).
What is the student-teacher ratio at Annex Charter School?
The student-teacher ratio at Annex Charter School is 14.6:1, which is 17% lower than the Oregon average of 17.6:1 and 7% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Annex Charter School?
69.5% of students at Annex Charter School are eligible for free lunch, compared to the Oregon average of 52.8%.
What is the racial and ethnic makeup of Annex Charter School?
The largest demographic group at Annex Charter School is White at 75.6% of enrollment, in Ontario, OR.
What is the Resource Investment Index for Annex Charter School?
Annex Charter School has a Resource Investment Index of 40/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Annex Charter School rank among elementary schools in Ontario?
By Resource Investment Index, Annex Charter School ranks #3 of 6 elementary schools in Ontario, OR. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Ontario on the city page.
What other schools are in Annex Sd 29?
None; Annex Sd 29 is a single-school charter district, and Annex Charter School is its only campus.