Post Middle School
🇺🇸 Official data · 2025Arlington, Washington 98223 · Arlington School District
#165 of 363 middle schools in Washington
#6323 of 15,369 nationally
About Post Middle School
Post Middle School is a public middle located in Arlington, in the Arlington School District school district of Washington, United States. It caters for Grades 6–8. In 2025 it enrolled 645 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 56.1 out of 100, placing it in the top 50% of middle schools in United States and 165th of 363 ranked middle schools in Washington. Its strongest component is reading proficiency (79th percentile), and its weakest is students per teacher (7th percentile).
Other published figures: enrollment 645.
There are 10 schools in Arlington; Post Middle School ranks 8th of 9 scored schools there.
Success Index (US) breakdown
Each component is a percentile against middle schools across United States.
- Math proficiency (30%)44%
- Reading proficiency (30%)65%
- Community advantage (fewer free/reduced-price lunch) (25%)45.7%
- Students per teacher (15%)22.2
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Post Middle School by the official sources.
- Enrollment
- 645
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 45.7%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 22.2
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 65%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 44%
- Share of tested students proficient or above (all students, all grades).
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Schools near Post Middle School
Closest schools by straight-line distance, with their Success Index (US).
Eagle Creek Elementary
Arlington · Public elementary · Grades K–5
665 students · 286 m away
Presidents Elementary
Arlington · Public elementary · Grades PK–5
578 students · 669 m away
Arlington Special Educ School
Arlington · Public other · Grades PK–12
0 students · 792 m away
Haller Middle School
Arlington · Public middle · Grades 6–8
576 students · 896 m away
Kent Prairie Elementary
Arlington · Public elementary · Grades K–5
621 students · 1.6 km away
Arlington High School
Arlington · Public high · Grades 9–12
1,650 students · 3.4 km away
Pioneer Elementary
Arlington · Public elementary · Grades K–5
501 students · 3.5 km away
Lakewood Elementary School
Marysville · Public elementary · Grades PK–5
458 students · 8.9 km away
Lakewood Middle School
Marysville · Public middle · Grades 6–8
668 students · 9.0 km away
English Crossing Elementary
Marysville · Public elementary · Grades K–5
331 students · 9.1 km away
Similar schools
Public middle schools in Washington with a comparable Enrollment.
Lakota Middle School
Federal Way · Public middle · Grades 6–8
645 students
Meridian Middle School
Kent · Public middle · Grades 6–8
647 students
Orting Middle School
Orting · Public middle · Grades 6–8
643 students
Lincoln Middle School
Pullman · Public middle · Grades 6–8
643 students
Brier Terrace Middle School
Brier · Public middle · Grades 7–8
649 students
Valley View Middle School
Snohomish · Public middle · Grades 7–8
641 students
Frequently asked questions
Is Post Middle School a good school?
Post Middle School has a Success Index (US) of 56.1 out of 100 (Top 50% of middle schools in United States) and ranks #165 of 363 in Washington. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Post Middle School rank in Washington?
Post Middle School ranks #165 of 363 middle schools in Washington and #6323 of 15,369 nationally on the Success Index (US) (2025 data).
How many students attend Post Middle School?
Post Middle School had 645 students in 2025.
Is Post Middle School a elementary school or a high school?
Post Middle School is classified as a middle covering Grades 6–8. It is a public school.
What other schools are near Post Middle School?
There are 10 schools within 15 km of Post Middle School; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.