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High · Alternative · Grades 9 to 12

Rock River Charter School, Janesville, WI

Charter schoolCEP schoolRock River Charter School is a public high school in Janesville, part of Janesville School District. It enrolled 267 students in 2024-25, with 16.7 students per full-time teacher.

Enrollment and teachers

Students
267
Teachers (FTE)
16.0
Students per teacher
16.7
Grades
9 to 12

This school's ratio is 4.5 higher than the district figure of 12.2. The Wisconsin average across schools is 14.0. Ratios count all teachers, including specialists, so they are lower than typical class sizes.

This school16.7
District12.2
Wisconsin14.0
United States15.3

School details

Address
31 W Milwaukee St, Janesville, WI 53548
Phone
(608)752-8273
District
Janesville School District
County
Rock County
Level
High
Type
Alternative
Status
Open
Charter
Yes
Locale
City: Small
NCES school ID
550702001698
Location from NCES coordinates. Map data OpenStreetMap contributors. Open larger map

School meals

Counts of students eligible for free or reduced-price lunch, as reported to NCES.
Free lunch
196
Reduced-price lunch
8
Free or reduced-price lunch
20476.4% of enrollment.
Community Eligibility Provision
Yes (CEP school)

Schools in the Community Eligibility Provision (CEP) serve free meals to all students, so their free lunch counts often reflect direct certification or total enrollment. Free and reduced lunch shares are not comparable between CEP and non-CEP schools.

Related schools

Other high schools in Janesville School District

We publish official enrollment and staffing data, not ratings or test scores.

Source: NCES Common Core of Data 2024-25 and F-33 finance 2020, via the Urban Institute Education Data Portal. Last reviewed October 2026. Blank values are not available, not applicable or suppressed in the source. See the methodology.