Serving 383 students in grades Prekindergarten-5, Mill Plain Elementary School ranks in the bottom 50% of all schools in Washington for overall test scores (math proficiency is top 50%, and reading proficiency is top 50%).
The percentage of students achieving proficiency in math is 35-39% (which is lower than the Washington state average of 40%). The percentage of students achieving proficiency in reading/language arts is 40-44% (which is lower than the Washington state average of 53%).
The student:teacher ratio of 14:1 is lower than the Washington state level of 16:1.
Minority enrollment is 60% of the student body (majority Hispanic), which is higher than the Washington state average of 52% (majority Hispanic).
Quick Stats (2025)
Grades: Prekindergarten-5
Enrollment: 383 students
Student:Teacher Ratio: 14:1
Minority Enrollment: 60%
Overall Testing Rank
: Bottom 50% in WA
Math Proficiency
: 35-39% (Top 50%)
Reading Proficiency
: 40-44% (Btm 50%)
Science Proficiency
: 50-59% (Top 50%)
Source: National Center for Education Statistics (NCES), WA Dept. of Education
Mill Plain Elementary School ranks within the bottom 50% of all 2,113 schools in Washington (based off of combined math and reading proficiency testing data).
The diversity score of Mill Plain Elementary School is 0.71, which is more than the diversity score at state average of 0.69. The school's diversity has stayed relatively flat over five school years.
Mill Plain Elementary School is ranked #1278 out of 2,113 schools, which ranks it among the bottom 50% of public schools in Washington.
What percent of students have achieved state testing proficiency in math and reading?
35-39% of students have achieved math proficiency (compared to the 40% WA state average), while 40-44% of students have achieved reading proficiency (compared to the 53% WA state average).
How many students attend Mill Plain Elementary School?
383 students attend Mill Plain Elementary School.
What is the racial composition of the student body?
40% of Mill Plain Elementary School students are White, 35% of students are Hispanic, 10% of students are Two or more races, 9% of students are Hawaiian, 3% of students are Asian, 2% of students are Black, and 1% of students are American Indian.
What is the student:teacher ratio of Mill Plain Elementary School?
Mill Plain Elementary School has a student ration of 14:1, which is lower than the Washington state average of 16:1.
What grades does Mill Plain Elementary School offer ?
Mill Plain Elementary School offers enrollment in grades Prekindergarten-5
What school district is Mill Plain Elementary School part of?
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Quick Stats (2025)
Grades: Prekindergarten-5
Enrollment: 383 students
Student:Teacher Ratio: 14:1
Minority Enrollment: 60%
Overall Testing Rank
: Bottom 50%
Math Proficiency
: 35-39% (Top 50%)
Reading Proficiency
: 40-44% (Btm 50%)
Science Proficiency
: 50-59% (Top 50%)
Source: National Center for Education Statistics (NCES), WA Dept. of Education
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