Serving 253 students in grades 6-12, Rock River Charter School ranks in the bottom 50% of all schools in Wisconsin for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is ≤5% (which is lower than the Wisconsin state average of 40%). The percentage of students achieving proficiency in reading/language arts is ≤5% (which is lower than the Wisconsin state average of 38%).
The student-teacher ratio of 16:1 is higher than the Wisconsin state level of 13:1.
Minority enrollment is 38% of the student body (majority Hispanic), which is higher than the Wisconsin state average of 33% (majority Hispanic).
Quick Facts (2026)
- School Type: Alternative school / Charter School
- Grades: 6-12
- Enrollment: 253 students
- Student-Teacher Ratio: 16:1
- Minority Enrollment: 38%
- Graduation Rate: 85-89% (Btm 50% in WI)
- Overall Testing Rank: Bottom 50%
- Math Proficiency: ≤5% (Btm 50%)
- Reading Proficiency: ≤5% (Btm 50%)
- Science Proficiency: ≤5% (Btm 50%)
- Source: National Center for Education Statistics (NCES), WI Dept. of Education
<麻豆果冻传媒 class="so-dt-title" id="top-rankings">Top Rankings
Rock River Charter School ranks among the top 20% of public schools in Wisconsin for:
Category
Attribute
Diversity
Percent Eligible For Free Lunch
<麻豆果冻传媒 class='so-dt-title' id="overview">School Overview <麻豆果冻传媒 class='so-dt-title' id="school-rankings">School Rankings
Rock River Charter School's student population of 253 students has grown by 25% over five school years.
The teacher population of 16 teachers has grown by 6% over five school years.
School Type
Grades Offered
Grades 6-12
(Supplemental Virtual)
(Supplemental Virtual)
Total Students
253 students
Gender %
Total Classroom Teachers
16 teachers
Year Founded
2005
School Calendar
Last Day of School
Sat. Jun 6, 2026
Rock River Charter School ranks within the bottom 50% of all 1,962 schools in Wisconsin (based off of combined math and reading proficiency testing data).
The diversity score of Rock River Charter School is 0.57, which is more than the diversity score at state average of 0.53. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#1899 out of 1962 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
≤5%
40%
Reading/Language Arts Test Scores (% Proficient)
≤5%
38%
Science Test Scores (% Proficient)
≤5%
44%
Student-Teacher Ratio
16:1
13:1
American Indian
n/a
1%
Asian
1%
4%
Hispanic
15%
14%
Black
11%
9%
White
62%
67%
Hawaiian
n/a
n/a
Two or more races
11%
5%
All Ethnic Groups
Graduation Rate
85-89%
90%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
79%
37%
Eligible for Reduced Lunch
5%
4%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), WI Dept. of Education
Profile last updated: 02/09/2025
<麻豆果冻传媒 class='so-dt-title' id='faq'>Frequently Asked Questions What is Rock River Charter School's ranking?
Rock River Charter School is ranked #1899 out of 1,962 schools, which ranks it among the bottom 50% of public schools in Wisconsin.
What percent of students have achieved state testing proficiency in math and reading?
≤5% of students have achieved math proficiency (compared to the 40% WI state average), while ≤5% of students have achieved reading proficiency (compared to the 38% WI state average).
What is the graduation rate of Rock River Charter School?
The graduation rate of Rock River Charter School is 85-89%, which is lower than the Wisconsin state average of 90%.
How many students attend Rock River Charter School?
253 students attend Rock River Charter School.
What is the racial composition of the student body?
62% of Rock River Charter School students are White, 15% of students are Hispanic, 11% of students are Black, 11% of students are Two or more races, and 1% of students are Asian.
What is the student-teacher ratio of Rock River Charter School?
Rock River Charter School has a student ration of 16:1, which is higher than the Wisconsin state average of 13:1.
What grades does Rock River Charter School offer ?
Rock River Charter School offers enrollment in grades 6-12 (Supplemental Virtual).
What school district is Rock River Charter School part of?
Rock River Charter School is part of Janesville School District.
School ReviewsReview Rock River Charter 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
Review Rock River Charter 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
麻豆果冻传媒 Articles
Back-to-School Tech & Online Learning Readiness Checklist
A 2026 guide to back-to-school tech & online learning readiness, helping families prepare devices, connectivity, skills, and safety.
How Public Schools Prepare for College in High School
Learn how public schools prepare for college and what parents should look for as students begin high school. Updated for 2026.
School Choice in 2026: What Parents Must Know
Explore how school choice is reshaping U.S. education in 2026, with updated trends, enrollment data, costs, policies, and practical guidance for parents.
