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SCHOOL COMMUNITY·NORTH WASCO COUNTY SD 21·NCES 410004801159

The Dalles High School

220 E 10th St, The Dalles, OR 97058 · (541) 506-3400 · Wasco County
GRADES 09–12HIGH33-TOWNTITLE IREGULAR SCHOOL795 STUDENTS
Enrollment
795
High
DISTRICT 405 · STATE 630
Student : Teacher
19.7:1
40 FTE teachers
DISTRICT 16.5:1 · STATE 19.8:1
Free / Reduced Lunch
99%
789 students
DISTRICT 91% · STATE 76%
Community
1
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

GradeStudentsShare
Grade 920526%
Grade 1021427%
Grade 1121127%
Grade 1216521%
Student demographics
59%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 58% · STATE 59% · US 70%
White
33843%
DISTRICT 46% · STATE 57% · US 43%
Hispanic
37247%
DISTRICT 45% · STATE 26% · US 30%
Black
132%
DISTRICT 1% · STATE 2% · US 15%
Asian
71%
DISTRICT 1% · STATE 4% · US 6%
Two+
405%
DISTRICT 5% · STATE 7% · US 5%
Native American
132%
DISTRICT 2% · STATE 1% · US 1%
Pacific Islander
71%
DISTRICT 1% · STATE 1% · US 0%
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
Male
39550%
Female
39550%

School pathway

Feeds from
The Dalles Middle School0608Mosier Community SchoolKG08
Based on grade levels within North Wasco County SD 21. Attendance zones can vary; confirm enrollment with the district.

Discussions

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Test scores

OSAS 2024-25 . % Proficient
English Language Arts
42.0%
OR avg 43.0% . -0.5pp since 2023
Math
13.3%
OR avg 31.8% . -1.7pp since 2023

What this means: On the OSAS, Oregon's statewide test, about 42 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 have held steady since 2023, while math scores are down about 2 points.

OSAS results by year

School yearEnglish Language ArtsMath
2024-2542.0%13.3%
2023-2442.5%15.0%
% Proficient, all students and all tested grades.
Source: OSAS. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
28.6%
composite math + reading, all grades
Predicted
24.1%
based on OR schools with similar FRL share
Beats by
+4.6pp
above demographic expectation

What this means: About 29% of students here test proficient in math and reading, compared with the roughly 24% 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 →

Where The Dalles High School ranks

Among high schools
MeasureThis schoolIn Oregon
State test proficiency
ranked highest first
28.6%#96 of 177
Math proficiency
ranked highest first
13.3%#128 of 194
Reading proficiency
ranked highest first
42.0%#92 of 201
Enrollment
ranked largest first
795#84 of 257
Students per teacher
ranked fewest first
19.7:1#85 of 171
Diversity index
ranked most diverse first
59.2%#35 of 171
Enrollment change since 2017-18
ranked steepest decline first
-5.5%#69 of 102
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.

7-year change

SY 2017-18 vs SY 2024-25
Enrollment
795
-46 (-5%) vs 2017
Student : Teacher
19.7:1
was 19.6:1
% White
43%
was 58%
% Hispanic
47%
was 33%
% Black
2%
was 0%
% Asian
1%
was 1%
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree or reduced lunch
2024-2579540.419.7:199% (789)
2023-2483440.720.5:176% (638)
2022-2381042.719.0:178% (629)
2017-188414319.6:152% (436)
Source: NCES Common Core of Data. Rows are the federal collections on file for The Dalles High School.

About The Dalles High School

Students in The Dalles, Oregon, attend The Dalles High School, a medium-sized high school. The student body numbers 795 students, from grades 9 through 12. Average enrollment for high schools in Oregon is about 630, so this school runs 26% above that.

North Wasco County SD 21 has 7 schools and 2,834 students, and The Dalles High School is one of those schools.

Hispanic students are the largest group at The Dalles High School, with 47% of enrollment. The remaining shares are 43% White and 5% multiracial. Wasco County as a whole is about 21% Hispanic, so the school's share is higher. The chance that two students picked at random at The Dalles High School belong to different racial or ethnic groups, known as the diversity index, is 59%.

The Dalles High School employs 40.4 full-time-equivalent teachers. That gives a ratio of about 19.7:1. High schools in Oregon average about 19.8:1, a similar figure. The Dalles High School's free or reduced-price lunch eligibility rate is 99%.

The Dalles High School posts an average proficiency rate on state tests of 28.6%, compared with a predicted 24.1%. It is not in the top or bottom 10% of Oregon schools on BeatsExpectations.

Census estimates describe Wasco County this way: median household income is about $64,175, about 22% of adults have at least a bachelor's degree, and roughly 7% of residents are in poverty. Federal data list 11 public schools in Wasco County, with a combined enrollment of about 3,407.

The school nearest to The Dalles High School is Colonel Wright Elementary School, at a distance of about 0.5 miles. Counting only straight-line distance, 5 other public schools are within five miles. Of the 8 nearby schools with scores, including this one, The Dalles High School is 4th on average proficiency.

Locale: Town: Remote. In NCES terms, the school is in a town far from an urbanized area.

Federal counts put enrollment at 841 in 2017-18 and 795 in 2024-25, a 5% decrease. The largest shift in the student mix was in the White share, which fell from 58% to 43%.

Parents and students can post about enrollment questions, class placement, and PTA news at The Dalles High School. Questions from prospective families are welcome too.

Wasco County at a glance

View full county profile
Population
26,552
Census ACS
Median income
$64,175
Household, ACS
Bachelor's+
22%
Adults 25+
Poverty rate
7%
Below federal line
Schools in county
11
3,407 students

Quick facts

School name
The Dalles High School
District
North Wasco County SD 21
Address
220 E 10th St, The Dalles, OR 97058
Phone
(541) 506-3400
County
Wasco County
Level
High
Grade range
09–12
Total enrollment
795
Teachers (FTE)
40
Student–teacher ratio
19.7:1
Free/Reduced lunch
789 (99%)
Locale
33-Town: Remote
NCES ID
410004801159
Charter school
No
Virtual school
No

Related schools

Other schools in North Wasco County SD 21
Other schools in The Dalles
Nearby schools

Frequently asked questions

About The Dalles High School
How large is The Dalles High School?
The Dalles High School enrolls approximately 795 students in grades 09-12.
Is The Dalles High School an elementary, middle, or high school?
The Dalles High School is a high school covering grades 09-12.
How many students per teacher at The Dalles High School?
Approximately 19.7:1 students per teacher at The Dalles High School.
What is the racial breakdown of students at The Dalles High School?
At The Dalles High School, the student body is approximately 43% White, 47% Hispanic, 2% Black, 1% Asian, 5% Two or more.
What district is The Dalles High School in?
The Dalles High School is part of North Wasco County SD 21.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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