Serving 309 students in grades Prekindergarten-5, Mill Stream Elementary School ranks in the bottom 50% of all schools in Maine for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 45-49% (which is approximately equal to the Maine state average of 49%). The percentage of students achieving proficiency in reading/language arts is 75-79% (which is lower than the Maine state average of 84%).
The student-teacher ratio of 11:1 is equal to the Maine state level of 11:1.
Minority enrollment is 9% of the student body (majority Hispanic), which is lower than the Maine state average of 15% (majority Black and Hispanic).
Quick Facts (2026)
- Grades: Prekindergarten-5
- Enrollment: 309 students
- Student-Teacher Ratio: 11:1
- Minority Enrollment: 9%
- Overall Testing Rank: Bottom 50% in ME
- Math Proficiency: 45-49% (Btm 50%)
- Reading Proficiency: 75-79% (Btm 50%)
- Science Proficiency: 20-29% (Btm 50%)
- Source: National Center for Education Statistics (NCES), ME Dept. of Education
Top Rankings
Mill Stream Elementary School ranks among the top 20% of public schools in Maine for:
Category
Attribute
Percent Eligible For Free Lunch
School Overview
Mill Stream Elementary School's student population of 309 students has stayed relatively flat over five school years.
The teacher population of 29 teachers has stayed relatively flat over five school years.
Grades Offered
Grades Prekindergarten-5
(No virtual instruction)
(No virtual instruction)
Total Students
309 students
Total Classroom Teachers
29 teachers
School Rankings
Mill Stream Elementary School ranks within the bottom 50% of all 500 schools in Maine (based off of combined math and reading proficiency testing data).
The diversity score of Mill Stream Elementary School is 0.17, which is less than the diversity score at state average of 0.28. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#367 out of 500 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
45-49%
49%
Reading/Language Arts Test Scores (% Proficient)
75-79%
84%
Science Test Scores (% Proficient)
20-29%
37%
Student-Teacher Ratio
11:1
11:1
American Indian
n/a
1%
Asian
1%
1%
Hispanic
5%
4%
Black
n/a
5%
White
91%
85%
Hawaiian
n/a
n/a
Two or more races
3%
4%
All Ethnic Groups
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
56%
39%
Eligible for Reduced Lunch
10%
7%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), ME Dept. of Education
Frequently Asked Questions
What is Mill Stream Elementary School's ranking?
Mill Stream Elementary School is ranked #367 out of 500 schools, which ranks it among the bottom 50% of public schools in Maine.
What percent of students have achieved state testing proficiency in math and reading?
45-49% of students have achieved math proficiency (compared to the 49% ME state average), while 75-79% of students have achieved reading proficiency (compared to the 84% ME state average).
How many students attend Mill Stream Elementary School?
309 students attend Mill Stream Elementary School.
What is the racial composition of the student body?
91% of Mill Stream Elementary School students are White, 5% of students are Hispanic, 3% of students are Two or more races, and 1% of students are Asian.
What is the student-teacher ratio of Mill Stream Elementary School?
Mill Stream Elementary School has a student ration of 11:1, which is equal to the Maine state average of 11:1.
What grades does Mill Stream Elementary School offer ?
Mill Stream Elementary School offers enrollment in grades Prekindergarten-5 (No virtual instruction).
What school district is Mill Stream Elementary School part of?
Mill Stream Elementary School is part of RSU 54/MSAD 54 School District.
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