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SCHOOL COMMUNITY·SEATTLE SCHOOL DISTRICT NO. 1·NCES 530771001136

Mercer International Middle School

1600 S COLUMBIAN WY, SEATTLE, WA 98108 · (206) 252-8000 · King County
GRADES 06–08MIDDLE11-CITYTITLE IREGULAR SCHOOL753 STUDENTS
Enrollment
753
Middle
DISTRICT 754 · STATE 577
Student : Teacher
17.4:1
43 FTE teachers
DISTRICT 20.0:1 · STATE 18.9:1
Free / Reduced Lunch
60%
450 students
DISTRICT 36% · STATE 51%
Community
1
0 members
Enrollment and student:teacher ratio compared against other middle schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Grade 6
282
Grade 7
260
Grade 8
211
Student demographics
White
9112%
DISTRICT 44% · STATE 47%
Hispanic
15721%
DISTRICT 15% · STATE 27%
Black
11515%
DISTRICT 14% · STATE 5%
Asian
30140%
DISTRICT 12% · STATE 9%
Two+
8011%
DISTRICT 13% · STATE 9%
Native American
41%
DISTRICT 0% · STATE 1%
Pacific Islander
20%
DISTRICT 1% · STATE 2%
Student head counts by race/ethnicity from federal NCES enrollment data. Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
40253%
Female
34846%

Discussions

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Test scores

Smarter Balanced + WCAS 2024-25 . % Met or Exceeded Standard
English Language Arts
58.7%
WA avg 58.4% . -7.8pp since 2014
Math
48.0%
WA avg 51.2% . -14.4pp since 2014
Source: Smarter Balanced + WCAS. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
50.8%
composite math + reading, all grades
Predicted
40.1%
based on WA schools with similar FRL share
Beats by
+10.6pp
above demographic expectation
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

7-year change

SY 2017-18 vs SY 2024-25
Enrollment
753
-383 (-34%) vs 2017
Student : Teacher
17.4:1
was 17.5:1
% White
12%
was 13%
% Hispanic
21%
was 19%
% Black
15%
was 20%
% Asian
40%
was 40%
Source: NCES Common Core of Data

About Mercer International Middle School

Mercer International Middle School is a middle-grades school of mid-tier scale in SEATTLE, Washington, run under Seattle School District No. 1, teacheing 753 students in grades 6 through 8. Compared to the state average of about 577 students per school, that is 31% bigger than typical.

Across the 107 schools in Seattle School District No. 1 (50,773 students total), Mercer International Middle School accounts for its share of the district's footprint.

Looking at the student body, Mercer International Middle School reports that the largest single group is Asian at 40%, but no single group is in the majority. Beyond that, the school shows 21% Hispanic, 15% Black, 12% White, 11% multiracial. The wider county runs roughly 21% Asian, putting the school's mix visibly more Asian than the area baseline.

Looking at school resources, On paper, Mercer International Middle School has 43 full-time-equivalent teachers, translating to a class-load average of around 17.4:1. The state averages around 18.9:1, so this campus is tighter than the state norm typical. Around 60% of the student body qualifies for free or reduced-price meals, which schools and policymakers use as a rough income-mix signal. That share is higher than King County's rate of about 38%.

On a residual basis (actual vs predicted given the student mix), Mercer International Middle School sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 40.1%; this one delivers 50.8%.

In the surrounding community, ACS estimates for King County put median household earnings sit near $124,746, about 57% of the adult population holds a bachelor's degree or above, and roughly 5% of residents live below the federal poverty line. Across King County's 544 public schools (combined enrollment of about 278,492 students), Mercer International Middle School is one campus in the mix.

Maple Elementary School is the nearest neighboring public school, about 0.5 miles from this campus. Counting just inside five miles, 8 other public schools cluster around Mercer International Middle School. Among the 8 schools in that immediate cluster with test data (this one included), Mercer International Middle School ranks 4th on composite proficiency, higher than the local average of 50.5%.

Geographically, the school is in a high-density area.

Looking at the recent track record. Mercer International Middle School's enrollment has shrank 34% since 2018, when it stood at 1,136 (now 753). Over the same period, the Black share edged down from 20% to 15%.

In the discussion threads here, recent activity here tends to focus on science fair prep, picture-day reminders, and bus-route questions. Contributors range from current parents to recent graduates and teachers.

King County at a glance

View full county profile
Population
2,287,171
Census ACS
Median income
$124,746
Household, ACS
Bachelor's+
57%
Adults 25+
Poverty rate
5%
Below federal line
Schools in county
544
278,492 students

Quick facts

School name
Mercer International Middle School
District
Seattle School District No. 1
Address
1600 S COLUMBIAN WY, SEATTLE, WA 98108
Phone
(206) 252-8000
County
King County
Level
Middle
Grade range
06–08
Total enrollment
753
Teachers (FTE)
43
Student–teacher ratio
17.4:1
Free/Reduced lunch
450 (60%)
Locale
11-City: Large
NCES ID
530771001136
Charter school
No
Virtual school
No

Related schools

Other schools in Seattle School District No. 1
Other schools in SEATTLE
Nearby schools

Frequently asked questions

About Mercer International Middle School
How large is Mercer International Middle School?
Mercer International Middle School enrolls approximately 753 students in grades 06-08.
What age range does Mercer International Middle School serve?
Mercer International Middle School serves students from grade 06 through grade 08.
What is the student-teacher ratio at Mercer International Middle School?
The student-to-teacher ratio at Mercer International Middle School is approximately 17.4:1 (43 FTE teachers).
What is the student diversity at Mercer International Middle School?
Student demographics at Mercer International Middle School are roughly 12% White, 21% Hispanic, 15% Black, 40% Asian, 11% Two or more.
Who oversees Mercer International Middle School?
Mercer International Middle School is overseen by Seattle School District No. 1 in King County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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