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Mattson Middle School

16400 SE 251st ST, Covington, WA 98042

BSchola Grade
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Grades
6–8
Middle
Students
719
Enrolled 2024–25
Students per teacher
18.4 : 1
Full-time teachers
District
Kent School District
King County

Schola Grade B · Above average

Letter grade (A–F) · compared with 368 Washington middle schools · How we grade
Test scores46% proficient in math & reading
66thpercentile
Equity34% of low-income students proficient
77thpercentile
Attendance38% chronically absent
40thpercentile
Class size18.4 students per teacher
63rdpercentile

Percentiles compare this school with other Washington middle schools; the line marks the middle. Data: test scores 2021–22, graduation and absenteeism 2022–23 (U.S. Department of Education, EDFacts); coursework 2023–24 (Civil Rights Data Collection); staffing 2024–25 (NCES).

About Mattson Middle School

Mattson Middle School is a public middle school in Covington, Washington, serving grades 6–8. It is part of Kent School District. The school is located in a large suburb in King County.

In the 2024–25 school year, 719 students were enrolled, with about 18.4 students for every full-time teacher. That ratio is smaller than the typical Washington middle school (19.1 students per teacher). Its Schola Grade is B (above average), compared with 368 Washington middle schools.

Grades & enrollment

Students per grade, 2024–25Grades 6–8

Location & nearby schools

16400 SE 251st ST
Covington, WA 98042
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School details

Type
Public School · What this means
Level
Middle
Grades offered
6–8
Enrollment (2024–25)
719 students
Students per teacher
18.4 to 1
Charter school
No
Magnet school
No
Locale
Suburb — Large
School district
Kent School District
County
King County
NCES school ID
530396001780

Schools near Mattson Middle School

All 8 schools in Covington →

School data comes from the U.S. Department of Education: the National Center for Education Statistics (NCES) Common Core of Data and EDGE school locations (2024–25) and Private School Survey (2023–24), the Civil Rights Data Collection (2023–24), and EDFacts (test results 2021–22; graduation and chronic absenteeism 2022–23), plus other public sources. Please contact the school to confirm enrollment, programs, and other details. How we source data.