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What's one thing Arlington High School gets right about preparing students for what comes next?
Community prompt from u/allk12. Replies below.
Enrollment
1,650
High
DISTRICT 607 · STATE 573
SCHOOL COMMUNITY·ARLINGTON SCHOOL DISTRICT·NCES 530024000023
Arlington High School
18821 Crown Ridge Blvd, Arlington, WA 98223 · (360) 618-6300 · Snohomish County
GRADES 09–12HIGH22-SUBURBREGULAR SCHOOL1,650 STUDENTS
B-
allk12 Grade
Scored higher than 51% of Washington public high schools
- B+Test 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.
- C-Three-year trend Change in reading and math proficiency over the last three test years.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Washington public high schools
Student : Teacher
23.2:1
71 FTE teachers
DISTRICT 16.5:1 · STATE 21.6:1
Free / Reduced Lunch
37%
611 students
DISTRICT 42% · STATE 51%
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
| Grade | Students | Share |
|---|---|---|
| Grade 9 | 452 | 27% |
| Grade 10 | 413 | 25% |
| Grade 11 | 361 | 22% |
| Grade 12 | 424 | 26% |
Student demographics
50%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 48% · STATE 68% · 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
Smarter Balanced + WCAS 2024-25 . % Met or Exceeded StandardEnglish Language Arts
60.2%
WA avg 58.4% . +5.3pp since 2014
Math
31.4%
WA avg 51.2% . +10.6pp since 2014
What this means: On the Smarter Balanced + WCAS, Washington's statewide test, about 60 of every 100 students at this school read and write at grade level and about 31 of 100 do math at grade level. Across all Washington schools, those numbers are about 58 and 51. Reading and writing scores are up about 5 points since 2014, while math scores are up about 11 points.
Smarter Balanced + WCAS results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 60.2% | 31.4% |
| 2023-24 | 67.2% | 29.8% |
| 2022-23 | 70.3% | 34.6% |
| 2021-22 | 70.6% | 32.5% |
| 2018-19 | 80.6% | 44.0% |
| 2017-18 | 77.7% | 47.0% |
| 2016-17 | 21.5% | 25.9% |
| 2015-16 | 41.9% | 34.7% |
| 2014-15 | 55.0% | 20.8% |
% Met or Exceeded Standard, all students and all tested grades.
Source: Smarter Balanced + WCAS. 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
49.0%
composite math + reading, all grades
Predicted
55.4%
based on WA schools with similar FRL share
Beats by
-6.4pp
below demographic expectation
What this means: About 49% of students here test proficient in math and reading, compared with the roughly 55% typical for Washington 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 Washington'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 Arlington High School
Arlington High School's state test result (49.0% proficient) is higher than 1 of the 3 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Arlington High School this school | 1,650 | 37.0% | 49.0% |
| Bellingham High School Bellingham | 1,165 | 35.5% | 51.7% |
| Sumner High School Sumner | 1,857 | 34.8% | 54.0% |
| Richland High School Richland | 2,218 | 34.1% | N/A |
| Ellensburg High School Ellensburg | 957 | 38.2% | 48.1% |
| Skyview High School VANCOUVER | 1,869 | 34.6% | N/A |
Matched among Washington 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 Arlington High School ranks
Among high schools| Measure | This school | In Washington | In Snohomish County |
|---|---|---|---|
| State test proficiency ranked highest first | 49.0% | #87 of 271 | #8 of 26 |
| Math proficiency ranked highest first | 31.4% | #136 of 321 ▲ 13 | #13 of 25 ▲ 2 |
| Reading proficiency ranked highest first | 60.2% | #145 of 327 ▼ 35 | #14 of 26 ▼ 4 |
| 3-year test score change ranked biggest drop first | -5.8pp | #53 of 259 | #6 of 23 |
| Enrollment ranked largest first | 1,650 | #57 of 570 | #7 of 45 |
| Students per teacher ranked fewest first | 23.2:1 | #270 of 311 | #14 of 23 |
| Diversity index ranked most diverse first | 49.9% | #206 of 316 | #22 of 25 |
| Free and reduced lunch ranked highest share first | 37.0% | #289 of 386 | #24 of 34 |
| Enrollment change since 2017-18 ranked fastest growth first | +2.9% | #110 of 136 | #12 of 12 |
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
1,650
+62 (+4%) vs 2020
+85% since 1990-91, when it was 890
Student : Teacher
23.2:1
was 20.4:1
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 | 1,650 | 71.1 | 23.2:1 | 37% (611) |
| 2023-24 | 1,622 | 73.5 | 22.1:1 | 38% (617) |
| 2022-23 | 1,661 | 79.2 | 21.0:1 | 36% (593) |
| 2020-21 | 1,588 | 78 | 20.4:1 | 30% (469) |
| 2017-18 | 1,604 | 74.4 | 21.6:1 | 26% (420) |
| 2015-16 | 1,666 | 73 | 22.8:1 | 27% (447) |
| 2010-11 | 1,603 | 74 | 21.7:1 | 11% (174) |
| 2000-01 | 1,417 | 62 | 22.9:1 | N/A |
| 1990-91 | 890 | 40 | 22.3:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Arlington High School.
Since 2017-18: students up 3% (1,604 to 1,650); teachers down 4% (74.4 to 71.1).
About Arlington High School
Students in Arlington, Washington, attend Arlington High School, a large high school. The grade span is 9 through 12, and enrollment is 1,650 students. Average enrollment for high schools in Washington is about 573, so this school runs 188% bigger than that.
Arlington School District oversees Arlington High School and 9 other schools, with 5,588 students in total.
A majority of students at Arlington High School, 67%, are White. The rest of enrollment is 20% Hispanic and 8% multiracial. That is close to the 64% White share among all Snohomish County residents. By the diversity index, Arlington High School comes in at 50%.
At Arlington High School, 71.1 full-time-equivalent teachers work with students, a ratio of about 23.2:1. For comparison, high schools in Washington average 21.6:1. Roughly 37% of the student body qualifies for free or reduced-price lunch.
allk12 grades Arlington High School a B-. The grade compares the school only with Washington public high schools, because each state gives its own test.
In Washington, Arlington High School is in the middle band of BeatsExpectations: 49.0% actual against a predicted 55.4%.
Within Snohomish County, median household income is about $111,246, the share of adults with a bachelor's degree or higher is 38%, and roughly 6% of residents are in poverty. The public schools of Snohomish County number 227 and enroll about 118,688.
The closest other public school is Pioneer Elementary, about 0.3 miles away. Around the school, at least 8 other public schools are within five miles. On proficiency, Arlington High School is ahead of the 44.7% nearby average, ranking 3rd of 7.
Locale: Suburb: Mid-size. In NCES terms, the school is in a suburban area outside a principal city, within an urbanized area with a population between 100,000 and 250,000.
Federal counts put enrollment at 1,588 in 2020-21 and 1,650 in 2024-25, a 4% gain. There were more students per teacher in 2024-25 (23.2:1) than in 2020-21 (20.4:1).
Parents and students can post about school events, clubs, and volunteer needs at Arlington High School. Alumni can share how the school prepared them.
Snohomish County at a glance
View full county profilePopulation
844,430
Census ACS
Median income
$111,246
Household, ACS
Bachelor's+
38%
Adults 25+
Poverty rate
6%
Below federal line
Schools in county
227
118,688 students
Quick facts
Related schools
Other schools in Arlington School District
- Eagle Creek ElementaryElementary · 665 students
- Post Middle SchoolMiddle · 645 students
- Kent Prairie ElementaryElementary · 621 students
- Presidents ElementaryElementary · 578 students
- Haller Middle SchoolMiddle · 576 students
- Pioneer ElementaryElementary · 501 students
Other schools in Arlington
- Lakewood High SchoolHigh · 834 students
- Eagle Creek ElementaryElementary · 665 students
- Post Middle SchoolMiddle · 645 students
- Kent Prairie ElementaryElementary · 621 students
- Presidents ElementaryElementary · 578 students
- Haller Middle SchoolMiddle · 576 students
Other Arlington High schools
7 other US public schools in 8 states are named Arlington High. Arlington High School is the 6th largest of the 8.
- Arlington High SchoolARLINGTON, TX · 2,580 students
- ARLINGTON HIGH SCHOOLLAGRANGEVILLE, NY · 2,472 students
- Arlington HighRiverside, CA · 1,920 students
- Arlington HighArlington, MA · 1,677 students
- Arlington HighArlington, TN · 1,674 students
Nearby schools
- Pioneer Elementary0.3 mi · 501
- Kent Prairie Elementary1.2 mi · 621
- Haller Middle School1.8 mi · 576
- Eagle Creek Elementary1.9 mi · 665
- Stillaguamish Valley Learning Center1.9 mi · 181
- Presidents Elementary2.0 mi · 578
Frequently asked questions
About Arlington High SchoolHow many students attend Arlington High School?
Arlington High School enrolls approximately 1,650 students in grades 09-12.
What grades does Arlington High School serve?
Arlington High School serves grades 09-12.
How many students per teacher at Arlington High School?
Approximately 23.2:1 students per teacher at Arlington High School.
How diverse is Arlington High School?
Arlington High School reports a student body of 67% White, 20% Hispanic, 2% Black, 2% Asian, 8% Two or more.
What district is Arlington High School in?
Arlington High School is part of Arlington School District.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.