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PublicMiddleGrades 6–8
1220 E. 5th St, Arlington, WA 98223 · (360) 618-6450 · Part of Arlington School District
Arlington’s School Grade B better than 55% of Washington school districts
Students
645
Students per teacher
22:1
Free or reduced lunch
46%
Setting
Suburb
Grades
6–8
What stands out about Post Middle School
- Larger classes: 22 students per teacher
- No state test results published for this school
- Next stop for Arlington kids: Arlington High School
On the path
Where Arlington kids come from and go next. The whole path →
K–54 elementary schoolsDepends on your address
6–8Post Middle SchoolYou are here
9–12Arlington High School1,650 students
Location
Directions ↗














1220 E. 5th St, Arlington
Students
Enrollment by grade
Grade 6215
Grade 7218
Grade 8212
Enrollment over time
654’20
642’21
643’22
634’23
645’24
About steady since 2020–21.
Who goes here
White 72%Hispanic 16%Two or more races 7%Asian 2%American Indian/Alaska Native 2%Black 1%Native Hawaiian/Pacific Islander <1%
As reported to NCES, share of students with a reported race or ethnicity.
Parents talk
Questions and answers about Post Middle School from Arlington families.
Other schools in Arlington School District
School facts: U.S. Department of Education (NCES), 2024–2025 school year. Map: © OpenStreetMap contributors.