C.S. Porter School also known as Porter Middle School, is a public middle school located in Missoula, Montana. The school is a part of Missoula County 51±¬ÁÏs, and is one of three public middle schools in the city of Missoula. Originally serving grades 5–8, the school now serves only grades 6–8.
Serving 590 students in grades 6-8, Porter Middle School ranks in the bottom 50% of all schools in Montana for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 29% (which is lower than the Montana state average of 37%). The percentage of students achieving proficiency in reading/language arts is 45% (which is lower than the Montana state average of 46%).
The student-teacher ratio of 16:1 is higher than the Montana state level of 12:1.
Minority enrollment is 21% of the student body (majority American Indian and Hispanic), which is lower than the Montana state average of 23% (majority American Indian and Hispanic).
Quick Facts (2026)
- Grades: 6-8
- Enrollment: 590 students
- Student-Teacher Ratio: 16:1
- Minority Enrollment: 21%
- Overall Testing Rank: Bottom 50% in MT
- Math Proficiency: 29% (Btm 50%)
- Reading Proficiency: 45% (Btm 50%)
- Science Proficiency: 45-49% (Btm 50%)
- Source: National Center for Education Statistics (NCES), MT Dept. of Education
Top Rankings
Porter Middle School ranks among the top 20% of public schools in Montana for:
Category
Attribute
Diversity
Percent Eligible For Free Lunch
School Overview
Porter Middle School's student population of 590 students has stayed relatively flat over five school years.
The teacher population of 37 teachers has grown by 5% over five school years.
Grades Offered
Grades 6-8
(No virtual instruction)
(No virtual instruction)
Total Students
590 students
Gender %
Total Classroom Teachers
37 teachers
Year Founded
1971
School Calendar
School Rankings
Porter Middle School ranks within the bottom 50% of all 696 schools in Montana (based off of combined math and reading proficiency testing data).
The diversity score of Porter Middle School is 0.37, which is less than the diversity score at state average of 0.40. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#499 out of 696 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
29%
37%
Reading/Language Arts Test Scores (% Proficient)
45%
46%
Science Test Scores (% Proficient)
45-49%
37%
Student-Teacher Ratio
16:1
12:1
American Indian
8%
10%
Asian
2%
1%
Hispanic
6%
6%
Black
4%
1%
White
79%
77%
Hawaiian
n/a
n/a
Two or more races
1%
5%
All Ethnic Groups
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
53%
42%
Eligible for Reduced Lunch
2%
5%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), MT Dept. of Education
School Notes
- School Mascot: Cougars
Profile last updated: 02/09/2025
Frequently Asked Questions
What is Porter Middle School's ranking?
Porter Middle School is ranked #499 out of 696 schools, which ranks it among the bottom 50% of public schools in Montana.
What schools are Porter Middle School often compared to?
Porter Middle Schoolis often viewed alongside schools like Washington Middle School, Meadow Hill Middle School, Hellgate Middle School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
29% of students have achieved math proficiency (compared to the 37% MT state average), while 45% of students have achieved reading proficiency (compared to the 46% MT state average).
How many students attend Porter Middle School?
590 students attend Porter Middle School.
What is the racial composition of the student body?
79% of Porter Middle School students are White, 8% of students are American Indian, 6% of students are Hispanic, 4% of students are Black, 2% of students are Asian, and 1% of students are Two or more races.
What is the student-teacher ratio of Porter Middle School?
Porter Middle School has a student ration of 16:1, which is higher than the Montana state average of 12:1.
What grades does Porter Middle School offer ?
Porter Middle School offers enrollment in grades 6-8 (No virtual instruction).
What school district is Porter Middle School part of?
Porter Middle School is part of Missoula Elementary School District.
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