Enrollment
131
Combined
STATE 384
SCHOOL COMMUNITY·ANNEX SD 29·NCES 410135000753
Annex Charter School
402 Annex Rd, Ontario, OR 97914 · (541) 262-3280 · Malheur County
GRADES KG–12COMBINED41-RURALCHARTERTITLE IREGULAR SCHOOL131 STUDENTS
Student : Teacher
16.4:1
8 FTE teachers
STATE 22.5:1
Free / Reduced Lunch
48%
63 students
STATE 76%
Community
0
0 members
Enrollment and student:teacher ratio compared against other combined schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Kindergarten | 13 | 10% |
| Grade 1 | 12 | 9% |
| Grade 2 | 15 | 11% |
| Grade 3 | 17 | 13% |
| Grade 4 | 11 | 8% |
| Grade 5 | 7 | 5% |
| Grade 6 | 2 | 2% |
| Grade 7 | 15 | 11% |
| Grade 8 | 7 | 5% |
| Grade 9 | 8 | 6% |
| Grade 10 | 8 | 6% |
| Grade 11 | 8 | 6% |
| Grade 12 | 8 | 6% |
Student demographics
38%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
STATE 59% · US 70%
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
Test scores
OSAS 2024-25 . % ProficientEnglish Language Arts
36.0%
OR avg 43.0% . -25.8pp since 2023
Math
41.2%
OR avg 31.8% . -11.7pp since 2023
What this means: On the OSAS, Oregon's statewide test, about 36 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 Oregon schools, those numbers are about 43 and 32. Reading and writing scores are down about 26 points since 2023, while math scores are down about 12 points.
OSAS results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 36.0% | 41.2% |
| 2023-24 | 61.8% | 52.9% |
% Proficient, all students and all tested grades.
Source: OSAS. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
48.0%
composite math + reading, all grades
Predicted
43.9%
based on OR schools with similar FRL share
Beats by
+4.1pp
above demographic expectation
What this means: About 48% of students here test proficient in math and reading, compared with the roughly 44% typical for Oregon 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 Oregon'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 →
4-year change
SY 2020-21 vs SY 2024-25Enrollment
131
+70 (+115%) vs 2020
+82% since 1990-91, when it was 72
Student : Teacher
16.4:1
was 7.6:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 131 | 8 | 16.4:1 | 48% (63) |
| 2023-24 | 79 | 9 | 8.8:1 | 72% (57) |
| 2022-23 | 82 | 9.5 | 8.6:1 | 70% (57) |
| 2020-21 | 61 | 8 | 7.6:1 | 8% (5) |
| 2017-18 | 87 | 5 | 17.4:1 | 80% (70) |
| 2015-16 | 76 | 5 | 15.2:1 | 93% (71) |
| 2010-11 | 54 | 3 | 18.0:1 | 83% (45) |
| 2000-01 | 83 | 6 | 13.8:1 | 61% (51) |
| 1990-91 | 72 | 5 | 14.4:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Annex Charter School.
Since 2017-18: students up 51% (87 to 131); teachers up 60% (5 to 8).
About Annex Charter School
Annex Charter School is a very small school serving multiple grade levels for students in Ontario, Oregon. Total enrollment is 131 students, and the grades served are kindergarten through 12. That is 66% below the average of about 384 students for combined schools in Oregon.
Federal records list Annex SD 29 as the district for Annex Charter School.
The largest group at Annex Charter School is White students, at 76%. Other groups include 22% Hispanic and 2% multiracial. On the diversity index, which measures the chance that two random students are from different groups, Annex Charter School scores 38%.
The student-to-teacher ratio is 16.4:1. The school has 8 full-time-equivalent teachers. The school's 16.4:1 compares with an average of 22.5:1 for combined schools in Oregon. Federal data show 48% of students (63) are eligible for free or reduced-price lunch. The 89% average for public schools in Malheur County is 41 points higher.
Compared with Oregon schools that have similar shares of low-income students, Annex Charter School's results are 4.1 points above predicted: 48.0% against 43.9%.
In Malheur County, home to about 31,954 people, the median household earns about $54,519 a year, roughly 15% of adults have a four-year degree or more, and about 15% of residents live below the federal poverty line. Public schools in Malheur County number 25, with about 6,566 students.
Annex Charter School's closest public school neighbor is PIONEER PRIMARY SCHOOL, about 1.3 miles away. The five-mile area around Annex Charter School holds 5 other public schools.
Annex Charter School is in rural territory close to an urban area, a location NCES labels Rural: Fringe. NCES lists Annex Charter School as a charter school.
The school's enrollment figures are 61 for 2020-21 and 131 for 2024-25. Differences this large can reflect a change in grade levels, a boundary change, or a merger. The number of students per teacher increased from 7.6 to 16.4 over 4 years.
People who know Annex Charter School can post here about special education services, counseling, and support programs. Parents, students, alumni, and staff are welcome to post.
Malheur County at a glance
View full county profilePopulation
31,954
Census ACS
Median income
$54,519
Household, ACS
Bachelor's+
15%
Adults 25+
Poverty rate
15%
Below federal line
Schools in county
25
6,566 students
Quick facts
Related schools
Other schools in Ontario
- Ontario High SchoolHigh · 709 students
- Ontario Middle SchoolMiddle · 471 students
- Four Rivers Community SchoolCombined · 367 students
- Alameda Intermediate SchoolElementary · 355 students
- Aiken Elementary SchoolElementary · 333 students
- May Roberts Primary SchoolElementary · 302 students
Nearby schools
- PIONEER PRIMARY SCHOOL1.3 mi · 385
- WEISER MIDDLE SCHOOL1.5 mi · 334
- WEISER HIGH SCHOOL1.8 mi · 511
- PARK INTERMEDIATE SCHOOL1.8 mi · 199
- INDIANHEAD ACADEMY HIGH SCHOOL1.9 mi · 13
- Pioneer Elementary School8.5 mi · 112
Frequently asked questions
About Annex Charter SchoolWhat is the total enrollment at Annex Charter School?
Annex Charter School enrolls approximately 131 students in grades KG-12.
What grades does Annex Charter School serve?
Annex Charter School serves grades KG-12.
How many students per teacher at Annex Charter School?
Approximately 16.4:1 students per teacher at Annex Charter School.
What is the racial breakdown of students at Annex Charter School?
At Annex Charter School, the student body is approximately 76% White, 22% Hispanic, 2% Two or more.
What district is Annex Charter School in?
Annex Charter School is part of Annex SD 29.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.