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Mercer International Middle School

🇺🇸 Official data · 2025Seattle, Washington 98108 · Seattle School District No. 1

64.6/ 100
Success Index (US)
Top 50%

#108 of 363 middle schools in Washington
#4462 of 15,369 nationally

How is this calculated?
Students
753
Enrollment
753
Source: NCES CCD
Free/reduced-price lunch
59.8%
Source: NCES CCD
Students per teacher
17.5
Source: NCES CCD

About Mercer International Middle School

Mercer International Middle School is a public middle school located in Seattle, in the Seattle School District No. 1 school district of Washington, United States. It caters for Grades 6–8. In 2025 it enrolled 753 students. Traditional public schools run by a school district; free to attend.

Its Success Index (US) is 64.6 out of 100, placing it in the top 50% of middle schools in United States and 108th of 363 ranked middle schools in Washington. Its strongest component is reading proficiency (86th percentile), and its weakest is students per teacher (28th percentile).

Other published figures: enrollment 753.

There are 113 schools in Seattle; Mercer International Middle School ranks 58th of 110 scored schools there.

Success Index (US) breakdown

Each component is a percentile against middle schools across United States.

  • Math proficiency (30%)61%
  • Reading proficiency (30%)71%
  • Community advantage (fewer free/reduced-price lunch) (25%)59.8%
  • Students per teacher (15%)17.5

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 Mercer International Middle School by the official sources.

Enrollment
753
Students enrolled in the latest NCES directory year.
Free/reduced-price lunch
59.8%
Share of students eligible for free or reduced-price lunch.
Students per teacher
17.5
Enrollment divided by FTE teachers; not class size.
Reading proficiency
71%
Share of tested students proficient or above (all students, all grades).
Math proficiency
61%
Share of tested students proficient or above (all students, all grades).

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Schools near Mercer International Middle School

Closest schools by straight-line distance, with their Success Index (US).

Similar schools

Public middle schools in Washington with a comparable Enrollment.

Frequently asked questions

Is Mercer International Middle School a good school?

Mercer International Middle School has a Success Index (US) of 64.6 out of 100 (Top 50% of middle schools in United States) and ranks #108 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 Mercer International Middle School rank in Washington?

Mercer International Middle School ranks #108 of 363 middle schools in Washington and #4462 of 15,369 nationally on the Success Index (US) (2025 data).

How many students attend Mercer International Middle School?

Mercer International Middle School had 753 students in 2025.

Is Mercer International Middle School a elementary school or a high school?

Mercer International Middle School is classified as a middle school covering Grades 6–8. It is a public school.

What other schools are near Mercer International Middle School?

There are 10 schools within 15 km of Mercer International Middle School; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.