Enrollment
319
High
DISTRICT 971 · STATE 630
SCHOOL COMMUNITY·SANTIAM CANYON SD 129J·NCES 410810000724
Santiam Junior/Senior High School
300 SW Cedar St, Mill City, OR 97360 · (503) 897-2311 · Linn County
GRADES 06–12HIGH42-RURALTITLE IREGULAR SCHOOL319 STUDENTS
D
allk12 Grade
Scored higher than 13% of Oregon public high schools
- DTest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- C-Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- ·Three-year trend Not available for this school, so the grade uses the other parts.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Oregon public high schools
Student : Teacher
13.5:1
24 FTE teachers
DISTRICT 16.0:1 · STATE 19.8:1
Free / Reduced Lunch
81%
259 students
DISTRICT 82% · STATE 76%
Community
0
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 6 | 53 | 17% |
| Grade 7 | 51 | 16% |
| Grade 8 | 46 | 14% |
| Grade 9 | 44 | 14% |
| Grade 10 | 41 | 13% |
| Grade 11 | 40 | 13% |
| Grade 12 | 44 | 14% |
Student demographics
43%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 51% · 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
School pathway
Feeds from
Based on grade levels within Santiam Canyon SD 129J. Attendance zones can vary; confirm enrollment with the district.
QUIET COMMUNITY
Be the first to start a discussion at Santiam Junior/Senior High School.
START A DISCUSSIONTest scores
OSAS 2024-25 . % ProficientEnglish Language Arts
22.0%
OR avg 43.0% . -7.9pp since 2023
Math
13.4%
OR avg 31.8% . +1.3pp since 2023
What this means: On the OSAS, Oregon's statewide test, about 22 of every 100 students at this school read and write at grade level and about 13 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 8 points since 2023, while math scores are up about 1 points.
OSAS results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 22.0% | 13.4% |
| 2023-24 | 29.9% | 12.1% |
% 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
17.4%
composite math + reading, all grades
Predicted
31.1%
based on OR schools with similar FRL share
Beats by
-13.7pp
below demographic expectation
What this means: About 17% of students here test proficient in math and reading, compared with the roughly 31% 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 →
Schools most like Santiam Junior/Senior High School
Santiam Junior/Senior High School's state test result (17.4% proficient) is higher than 0 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Santiam Junior/Senior High School this school | 319 | 81.2% | 17.4% |
| Siuslaw High School Florence | 413 | 82.8% | 24.5% |
| Clatskanie Middle/High School Clatskanie | 307 | 78.2% | 28.1% |
| Rainier Jr/Sr High School Rainier | 366 | 79.0% | 30.1% |
| South Umpqua High School Myrtle Creek | 442 | 83.0% | 21.3% |
| Baker High School Baker City | 478 | 83.9% | 27.5% |
Matched among Oregon high schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where Santiam Junior/Senior High School ranks
Among high schools| Measure | This school | In Oregon | In Linn County |
|---|---|---|---|
| State test proficiency ranked highest first | 17.4% | #160 of 177 | #8 of 8 |
| Math proficiency ranked highest first | 13.4% | #127 of 194 ▲ 6 | #7 of 8 ▼ 1 |
| Reading proficiency ranked highest first | 22.0% | #183 of 201 ▼ 32 | #8 of 8 ▼ 3 |
| Enrollment ranked largest first | 319 | #142 of 257 | #5 of 11 |
| Students per teacher ranked fewest first | 13.5:1 | #10 of 171 | #2 of 8 |
| Diversity index ranked most diverse first | 42.7% | #111 of 171 | #3 of 8 |
| Free and reduced lunch ranked highest share first | 81.2% | #78 of 207 | #2 of 9 |
| Enrollment change since 2017-18 ranked fastest growth first | +14.7% | #15 of 67 | N/A |
Ranked against other public high schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
319
+17 (+6%) vs 2020
+64% since 1990-91, when it was 195
Student : Teacher
13.5:1
was 15.1:1
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 | 319 | 23.6 | 13.5:1 | 81% (259) |
| 2023-24 | 312 | 23.9 | 13.0:1 | 68% (213) |
| 2022-23 | 312 | 23.3 | 13.4:1 | 69% (214) |
| 2020-21 | 302 | 20 | 15.1:1 | N/A |
| 2017-18 | 278 | 16.7 | 16.7:1 | 49% (135) |
| 2015-16 | 248 | 14 | 17.7:1 | 61% (152) |
| 2010-11 | 185 | 13 | 14.2:1 | 51% (95) |
| 2000-01 | 205 | 14 | 14.6:1 | 42% (87) |
| 1990-91 | 195 | 13 | 15.0:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Santiam Junior/Senior High School.
Since 2017-18: students up 15% (278 to 319); teachers up 41% (16.7 to 23.6).
About Santiam Junior/Senior High School
Santiam Junior/Senior High School is a low-enrollment high school in Mill City, Oregon, under Santiam Canyon SD 129J. Students in grades 6 through 12 attend the school, which enrolls 319 students. For comparison, high schools in Oregon average about 630 students.
Santiam Junior/Senior High School is one of 3 schools in Santiam Canyon SD 129J, which enrolls 2,913 students in total.
Santiam Junior/Senior High School's enrollment is 74% White. Next come 13% Hispanic and 10% multiracial. The county population is about 84% White. Santiam Junior/Senior High School has a diversity index of 43%, compared with 70% for all US public school students.
Its 23.6 full-time-equivalent teachers give the school a ratio of 13.5:1. That ratio is under the 19.8:1 average for high schools in Oregon. Free or reduced-price lunch eligibility is 81%. That is close to the 79% average for public schools in Linn County.
The allk12 Grade for Santiam Junior/Senior High School is D. Compared with Oregon public high schools, the school scored higher than 13% on a mix of test scores, poverty-adjusted results, and recent trend.
When test results are adjusted for free or reduced-price lunch eligibility, Santiam Junior/Senior High School is 13.7 points below its prediction. Actual: 17.4%. Predicted: 31.1%.
Among Linn County residents, median household income is about $76,329, 22% of adults hold a bachelor's degree or higher, and about 9% of people live in poverty. Federal data list 48 public schools in Linn County, with a combined enrollment of about 17,916.
The closest public school, Oregon Charter Academy, is about 0.5 miles from Santiam Junior/Senior High School. Within five miles are 2 other public schools. The average proficiency across nearby scored schools is 34.8%; Santiam Junior/Senior High School's is 17.4%, ranking 6th of 6.
The federal government classifies Santiam Junior/Senior High School's location as Rural: Distant.
From 2020-21 to 2024-25, Santiam Junior/Senior High School went from 302 students to 319. The student-to-teacher ratio went down from 15.1:1 to 13.5:1.
Parents and students can post about school events, clubs, and volunteer needs at Santiam Junior/Senior High School. Alumni can share how the school prepared them.
Linn County at a glance
View full county profilePopulation
130,706
Census ACS
Median income
$76,329
Household, ACS
Bachelor's+
22%
Adults 25+
Poverty rate
9%
Below federal line
Schools in county
48
17,916 students
Quick facts
Related schools
Other schools in Santiam Canyon SD 129J
- Oregon Charter AcademyCombined · 2,345 students
- Santiam Elementary SchoolElementary · 249 students
Other schools in Mill City
- Oregon Charter AcademyCombined · 2,345 students
- Santiam Elementary SchoolElementary · 249 students
Nearby schools
- Oregon Charter Academy0.5 mi · 2,345
- Santiam Elementary School3.2 mi · 249
- Mari-Linn School7.0 mi · 158
- Lourdes School10.7 mi · 36
- Silver Crest Elementary School15.1 mi · 119
- Stayton Elementary School15.7 mi · 332
Frequently asked questions
About Santiam Junior/Senior High SchoolHow many students attend Santiam Junior/Senior High School?
Santiam Junior/Senior High School enrolls approximately 319 students in grades 06-12.
What age range does Santiam Junior/Senior High School serve?
Santiam Junior/Senior High School serves students from grade 06 through grade 12.
How many students per teacher at Santiam Junior/Senior High School?
Approximately 13.5:1 students per teacher at Santiam Junior/Senior High School.
What is the student diversity at Santiam Junior/Senior High School?
Student demographics at Santiam Junior/Senior High School are roughly 74% White, 13% Hispanic, 2% Black, 0% Asian, 10% Two or more.
What district is Santiam Junior/Senior High School in?
Santiam Junior/Senior High School is part of Santiam Canyon SD 129J.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.