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Mercer Island School District District Web Site
  Superintendent Donna Colosky
2062363300    (more info)
  4160 86TH AVE SE MERCER ISLAND 98040-4196
Puget Sound Educational Service District 121
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2016-17 Results (Administration Info)
Grade LevelSBA ELASBA Math
3rd Grade 81.7%82.0%
4th Grade 85.3%83.8%
5th Grade 90.1%83.8%
6th Grade 80.9%76.3%
7th Grade 86.8%78.1%
8th Grade 80.0%81.0%
11th Grade 94.2%21.0%
Grade LevelMSP Science
5th Grade 92.3%
8th Grade 92.8%
Grade Level *EOC Biology
10th Grade 92.4%

* End of Course (EOC) Biology is administered in any grade in which the course is offered. Prior to 2015, EOC Math exams were given in any grade in which the course is offered and served as the state’s accountability test in mathematics. As of 2015, EOC Math tests are taken only for the purpose of meeting assessment graduation requirements by students in the classes of 2018 and prior.

** The "Makeup" exam was given to students who had already completed the Year 1 or Year 2 coursework. It was not a "retake".

Student Demographics
October 2016 Student Count4,465
May 2017 Student Count4,513
Gender (October 2016)
Race/Ethnicity (October 2016)
Hispanic / Latino of any race(s)1954.4%
American Indian / Alaskan Native90.2%
Black / African American471.1%
Native Hawaiian / Other Pacific Islander70.2%
Two or More Races3808.5%
Special Programs
Free or Reduced-Price Meals (May 2017)1292.9%
Special Education (May 2017)4139.2%
Transitional Bilingual (May 2017)1603.5%
Migrant (May 2017)00.0%
Section 504 (May 2017)59513.2%
Other Information (more info)
Unexcused Absence Rate (2016-17)490.0%
Adjusted 4-Year Cohort Graduation Rate (Class of 2016)35593.5%
Adjusted 5-year Cohort Graduation Rate (Class of 2015)32796.6%
College/University enrollment rates of graduates
Information on Homeless Students may be found here

Teacher Information (2016-17)  (more info)
Classroom Teachers249
   Hispanic / Latino of any race(s)8
   American Indian / Alaskan Native1
   Two or More Races7
Average Years of Teacher Experience11.9
   Hispanic / Latino of any race(s)14.6
   American Indian / Alaskan Native5.7
   Two or More Races7.4
Teachers with at least a Master's Degree71.1%
% of teachers teaching with an emergency certificate0.0%
% of teachers teaching with a conditional certificate0.0%