Mill Valley High School is a high school located in Shawnee, Kansas, and operated by De Soto USD 232 public school district. As of the 2020–2021 school year, its attendance is roughly 1,306. Mill Valley is a member of the Kansas State High School Activities Association and offers a variety of sports programs.
Serving 1,432 students in grades 9-12, Mill Valley High School ranks in the top 50% of all schools in Kansas for overall test scores (math proficiency is top 30%, and reading proficiency is top 30%).
The percentage of students achieving proficiency in math is 42% (which is higher than the Kansas state average of 31%). The percentage of students achieving proficiency in reading/language arts is 41% (which is higher than the Kansas state average of 32%).
The student-teacher ratio of 16:1 is higher than the Kansas state level of 13:1.
Minority enrollment is 21% of the student body (majority Hispanic and Black), which is lower than the Kansas state average of 40% (majority Hispanic).
Quick Facts (2026)
- Grades: 9-12
- Enrollment: 1,432 students
- Student-Teacher Ratio: 16:1
- Minority Enrollment: 21%
- Graduation Rate: 98% (Top 1% in KS)
- Overall Testing Rank: Top 50%
- Math Proficiency: 42% (Top 30%)
- Reading Proficiency: 41% (Top 50%)
- Science Proficiency: 39% (Top 50%)
- Source: National Center for Education Statistics (NCES), KS Dept. of Education
Top Rankings
Mill Valley High School ranks among the top 20% of public schools in Kansas for:
Category
Attribute
Graduation Rate
School Overview
Mill Valley High School's student population of 1,432 students has grown by 8% over five school years.
The teacher population of 90 teachers has grown by 8% over five school years.
Grades Offered
Grades 9-12
(No virtual instruction)
(No virtual instruction)
Total Students
1,432 students
Total Classroom Teachers
90 teachers
Year Founded
2000
Colors
Blue, Silver, Midnight blue
School Motto
We ARE Mill Valley
School Rankings
Mill Valley High School ranks within the top 50% of all 1,269 schools in Kansas (based off of combined math and reading proficiency testing data).
The diversity score of Mill Valley High School is 0.37, which is less than the diversity score at state average of 0.58. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#381 out of 1269 schools
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
42%
31%
Reading/Language Arts Test Scores (% Proficient)
41%
32%
Science Test Scores (% Proficient)
39%
31%
Student-Teacher Ratio
16:1
13:1
American Indian
n/a
1%
Asian
4%
3%
Hispanic
7%
23%
Black
5%
7%
White
79%
60%
Hawaiian
n/a
n/a
Two or more races
5%
6%
All Ethnic Groups
Graduation Rate
98%
89%
Chronically Absent Students
(22-23)7.7%
24.2%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
9%
41%
Eligible for Reduced Lunch
2%
8%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), KS Dept. of Education
School Notes
- School Mascot: Jaguar
Frequently Asked Questions
What is Mill Valley High School's ranking?
Mill Valley High School is ranked #381 out of 1,269 schools, which ranks it among the top 50% of public schools in Kansas.
What schools are Mill Valley High School often compared to?
Mill Valley High Schoolis often viewed alongside schools like De Soto High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
42% of students have achieved math proficiency (compared to the 31% KS state average), while 41% of students have achieved reading proficiency (compared to the 32% KS state average).
What is the graduation rate of Mill Valley High School?
The graduation rate of Mill Valley High School is 98%, which is higher than the Kansas state average of 89%.
How many students attend Mill Valley High School?
1,432 students attend Mill Valley High School.
What is the racial composition of the student body?
79% of Mill Valley High School students are White, 7% of students are Hispanic, 5% of students are Black, 5% of students are Two or more races, and 4% of students are Asian.
What is the student-teacher ratio of Mill Valley High School?
Mill Valley High School has a student ration of 16:1, which is higher than the Kansas state average of 13:1.
What grades does Mill Valley High School offer ?
Mill Valley High School offers enrollment in grades 9-12 (No virtual instruction).
What school district is Mill Valley High School part of?
Mill Valley High School is part of De Soto School District.
School Reviews
Review Mill Valley High School. Reviews should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
- Availability of music, art, sports and other extracurricular activities
Recent Articles
Gifted, Honors, and Advanced Tracks: Are They Accessible or Just Advertised?
Learn how to evaluate gifted, honors, and advanced academic programs in public schools, including admission criteria, equity, and the questions every parent should ask.
Algebra Readiness: What Parents Should Ask Before Middle School
Discover how to determine if your child is ready for algebra before middle school, including the questions parents should ask and the skills students need to succeed.
How to Evaluate Reading Instruction in Your Zoned Elementary School
Learn how to evaluate reading instruction in your neighborhood elementary school by recognizing effective literacy practices, asking the right questions, and understanding what quality reading instruction looks like.
