The bulletin board for America's public schools. Parents, teachers, students, and staff. One community per school.
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
A-
allk12 Grade
Scored higher than 84% of Washington public middle schools
  • B+Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • A+Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
  • BThree-year trend Change in reading and math proficiency over the last three test years.

Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Washington public middle schools

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, 2024-25

GradeStudentsShare
Grade 628237%
Grade 726035%
Grade 821128%
Student demographics
75%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 73% · STATE 68% · US 70%
White
9112%
DISTRICT 44% · STATE 47% · US 43%
Hispanic
15721%
DISTRICT 15% · STATE 27% · US 30%
Black
11515%
DISTRICT 14% · STATE 5% · US 15%
Asian
30140%
DISTRICT 12% · STATE 9% · US 6%
Two+
8011%
DISTRICT 13% · STATE 9% · US 5%
Native American
41%
DISTRICT 0% · STATE 1% · US 1%
Pacific Islander
20%
DISTRICT 1% · STATE 2% · US 0%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). 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

+ POST

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

What this means: On the Smarter Balanced + WCAS, Washington's statewide test, about 59 of every 100 students at this school read and write at grade level and about 48 of 100 do math at grade level. Across all Washington schools, those numbers are about 58 and 51. Reading and writing scores are down about 8 points since 2014, while math scores are down about 14 points.

Smarter Balanced + WCAS results by year

School yearEnglish Language ArtsMath
2024-2558.7%48.0%
2023-2456.2%45.3%
2022-2357.4%41.5%
2021-2259.2%41.5%
2018-1971.2%60.3%
2017-1869.0%60.9%
2016-1767.4%63.8%
2015-1664.4%64.2%
2014-1566.4%62.4%
% Met or Exceeded Standard, all students and all tested grades.
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

What this means: About 51% of students here test proficient in math and reading, compared with the roughly 40% typical for Washington schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Washington's top nor bottom 10%.

BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

Schools most like Mercer International Middle School

Mercer International Middle School's state test result (50.8% proficient) is higher than 5 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Mercer International Middle School this school75359.8%50.8%
Meeker Middle School
Renton
77958.8%34.6%
Meridian Middle School
Kent
64755.6%45.6%
Nelsen Middle School
Renton
91358.5%33.1%
Rainier Middle School
AUBURN
90760.6%27.4%
Dimmitt Middle School
Seattle
60562.3%27.7%
Matched among Washington middle schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.

Where Mercer International Middle School ranks

Among middle schools
MeasureThis schoolIn WashingtonIn King County
State test proficiency
ranked highest first
50.8%#89 of 294#42 of 76
Math proficiency
ranked highest first
48.0%#88 of 357
▲ 6
#42 of 76
▲ 1
Reading proficiency
ranked highest first
58.7%#98 of 357
▲ 2
#42 of 76
no change
3-year test score change
ranked biggest gain first
+3.0pp#125 of 290#32 of 75
Enrollment
ranked largest first
753#99 of 377#36 of 80
Students per teacher
ranked fewest first
17.4:1#68 of 340#7 of 76
Diversity index
ranked most diverse first
74.5%#42 of 340#26 of 76
Free and reduced lunch
ranked highest share first
59.8%#116 of 359#20 of 77
Enrollment change since 2017-18
ranked steepest decline first
-33.7%#11 of 192#4 of 37
Ranked against other public middle schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.

4-year change

SY 2020-21 vs SY 2024-25
Enrollment
753
-420 (-36%) vs 2020
-16% since 1990-91, when it was 894
Student : Teacher
17.4:1
was 17.5:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2575343.217.4:160% (450)
2023-247514118.3:167% (501)
2022-2386253.416.1:167% (579)
2020-211,1736717.5:159% (687)
2017-181,13664.817.5:164% (730)
2015-161,1016118.1:168% (746)
2010-118064617.5:175% (604)
2000-018114518.0:1N/A
1990-918944519.9:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Mercer International Middle School.

Since 2017-18: students down 34% (1,136 to 753); teachers down 33% (64.8 to 43.2).

About Mercer International Middle School

Mercer International Middle School is a mid-sized middle school for students in SEATTLE, Washington. The school offers grades 6 through 8 and enrolls 753 students. On average, middle schools in Washington enroll around 577, and this school is 31% bigger than that mark.

Mercer International Middle School is part of Seattle School District No. 1, where 107 schools serve 50,773 students.

No group is above 50% at Mercer International Middle School; the largest is Asian, at 40%. Beyond that, enrollment is 21% Hispanic, 15% Black, 12% White, and 11% multiracial. The Asian share of the county population is lower, at 21%. The diversity index for Mercer International Middle School is 75%. For US public schools as a whole it is 70%.

Its ratio of 17.4:1 is based on 43.2 full-time-equivalent teachers. Middle schools in Washington have an average ratio of 18.9:1. In all, 60% of students qualify for free or reduced-price lunch. That rate is above the 38% average among public schools in King County.

Mercer International Middle School earns an A- on the allk12 Grade, which blends test scores, results against poverty-based expectations, and the three-year trend. It scored higher than 84% of Washington public middle schools.

The school's average proficiency rate across its state test results is 50.8%. For its free or reduced-price lunch share, the predicted value is 40.1%.

In King County, where the school is located, the median household earns about $124,746 a year, 57% of adults hold a bachelor's degree or higher, and about 5% of residents live below the federal poverty line. Public schools in King County number 544, with about 278,492 students.

About 0.5 miles separate Mercer International Middle School from the closest public school, Maple Elementary School. The five-mile area around Mercer International Middle School holds at least 8 other public schools. Nearby schools average 50.5% on proficiency, and Mercer International Middle School is above that at 50.8%.

For locale, NCES codes Mercer International Middle School as City: Large.

Over the 4 years from 2020-21 to 2024-25, enrollment fell 36%.

Mercer International Middle School has a community page on allk12 for topics such as pickup and drop-off, after-school programs, and teacher feedback. Teachers and staff are welcome to share updates too.

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 and 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.
+ Post