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Rock River Charter School

Public, Charter Grades 9-12

508^th

SchoolDigger Rank ?

of 533 Wisconsin High Schools

Better than 5% of Wisconsin high schools

Summary

Rock River Charter School is a 9–12 high school in Janesville, WI, serving 267 students as part of the Janesville School District. In 2025–2026, it ranked 508th of 533 Wisconsin high schools—the 5th percentile, with 0 stars—and its available history shows long-term bottom-tier performance. It also serves a high-poverty population: 76.4% of students were eligible for free/reduced lunch in 2024–2025.

Academics are the biggest concern. For 2025–2026 10th-grade assessments, proficiency was 0% in Social Studies, 9.23% in English Language Arts, 6.15% in Math, and 9.23% in Science—far below the Janesville district and Wisconsin averages. Nearby schools are much higher: Craig High posted 54.92% in Social Studies and 58.36% in ELA, while Rock University High reached 89.47% and 95.24%; Parker High was closer to district averages. Only Beloit Learning Academy had similarly low proficiency. Rock River’s graduation rate was 85.4% in 2024–2025, below the district’s 93.0% and the state’s 92.0%, but up from 69.3% in 2020–2021. Its dropout rate was 4.7%, versus 0.8% district and 1.1% state.

There are positive engagement signs: chronic absenteeism was 16.7% in 2024–2025, better than the district’s 22.0% and the state’s 17.3%, and improved from 30.1% in 2020–2021. Rock River has the highest free/reduced lunch rate among Janesville high schools and the lowest per-student spending among listed nearby schools ($11,731), plus a higher student-teacher ratio (16.6) than most. Subgroup results vary, but no subgroup reaches the state median. Compared with Beloit Learning Academy, Rock River has stronger graduation, dropout, and absenteeism outcomes. Within its district, it is a stark outlier: Rock University High ranks 3rd statewide, Craig High 185th, Parker High 312th, while Rock River is 508th. The key challenge is turning engagement gains into academic proficiency.

267

Students ?

16.6

Student/teacher ratio ?

$11,731

Per pupil spending ?

76.4%

Free/discounted lunch ?

31 W Milwaukee St
Janesville, WI 53548-2911

(608) 752-8273

District: Janesville School District

Feeder schools for Rock River Charter School:

Elementary:	Adams Elementary
	Harrison Elementary
	Jackson Elementary
	Jefferson Elementary
	More...
	Kennedy Elementary
	Lincoln Elementary
	Madison Elementary
	Monroe Elementary
	Roosevelt Elementary
	Van Buren Elementary
	Washington Elementary
	Wilson Elementary
Middle:	Edison Middle
	Franklin Middle
	Marshall Middle

Racial breakdown:

White:

63.7%

African American:

12.4%

Two or more races:

10.9%

See top rated Wisconsin high schools

Compare Rock River Charter School to nearby high schools!

At a glance

▬ Ranking trend: Holding steady — 5th percentile in 2005 → 5th in 2026

Worth a look

!Test scores below the Wisconsin average (8% vs 46% meeting standards)

!In the lower quartile statewide (5th percentile)

!Graduation rate below the Wisconsin average (85% vs 92%)

Students meeting standards (2025-2026) ?

This school8%

District avg42%

Wisconsin avg46%

508^th of 533

Wisconsin public high schools ?

Bottom 5%

See the entire ranking list of Wisconsin High Schools →

★★★★★

SchoolDigger rating ?

4^th of 4High Schools in the Janesville School District

257^th of 432Janesville School District among Wisconsin districts

Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	Wisconsin percentile	Rating
2026	3.9	508 of 533	4.7%	☆☆☆☆☆
2007	1.1	272 of 281	3.2%	☆☆☆☆☆
2006	1.1	282 of 292	3.4%	☆☆☆☆☆
2005	2.1	274 of 287	4.5%	☆☆☆☆☆

African American

Year	Avg score	Statewide rank	Wisconsin percentile	Rating
2026	34.0	50 of 84	40.5%	★★☆☆☆

Female

Year	Avg score	Statewide rank	Wisconsin percentile	Rating
2026	2.3	448 of 461	2.8%	☆☆☆☆☆

Hispanic

Year	Avg score	Statewide rank	Wisconsin percentile	Rating
2026	18.2	164 of 187	12.3%	★☆☆☆☆

Low Socio Economic Status

Year	Avg score	Statewide rank	Wisconsin percentile	Rating
2026	8.4	421 of 446	5.6%	☆☆☆☆☆

Male

Year	Avg score	Statewide rank	Wisconsin percentile	Rating
2026	5.5	436 of 462	5.6%	☆☆☆☆☆

Special Education

Year	Avg score	Statewide rank	Wisconsin percentile	Rating
2026	27.1	245 of 333	26.4%	★☆☆☆☆

White

Year	Avg score	Statewide rank	Wisconsin percentile	Rating
2026	0.7	340 of 344	1.2%	☆☆☆☆☆

How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)

African American (2026)40th percentile+36 vs school

Special Education (2026)26th percentile+22 vs school

Hispanic (2026)12th percentile+8 vs school

Male (2026)6th percentile~ school

Low Socio Economic Status (2026)6th percentile~ school

Female (2026)3rd percentile~ school

White (2026)1st percentile-4 vs school

By subject vs Wisconsin (2025-2026) ?

English Language Arts9%-39 vs state

Science9%-34 vs state

Mathematics6%-37 vs state

Social Studies0%-48 vs state

★

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Schools Near Rock River Charter School

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Ranking:

E Elementary M Middle H High A Alternative P Private

Choose columns to see: Summary School Students/Teachers Ranking Test Scores Finance All

School													Students/Teachers											Ranking (2026)				Ranking (2025)				ACT English Language Arts (2026)	ACT Mathematics (2026)	ACT Science (2026)	Forward Exam Social Studies (2026)	Per Pupil Expenditures (2025)
Name	Type	Grades	Address	City	Zip	County	District	Is Charter	Is Magnet	Is Virtual	Is Title I	Phone	Enrollment	Full-time Teachers	Student/ Teacher Ratio	Free/Discounted Lunch Recipients (2025)	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2026)	Statewide Rank (2026)	State Percentile (2026)	SchoolDigger Rating (2026)	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	Rank Change from Previous Year	ACT English Language Arts 10th Grade	ACT Mathematics 10th Grade	ACT Science 10th Grade	Forward Exam Social Studies 10th Grade	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Rock River Charter School	Public, Charter	9-12	31 W Milwaukee St	Janesville	53548	Rock County	Janesville School District	Yes	No	No	Yes	(608) 752-8273	267	16	16.6	76.4%	170 (63.7%)	33 (12.4%)	27 (10.1%)	7 (2.6%)	1 (0.4%)	0 (0.0%)	29 (10.9%)	3.9	508^th of 533 public high schools	4.7%					(n/a)	9.2	6.2	9.2	0.0	$11,731	$1,425	$10,306
Craig High	Public	9-12	401 S Randall Ave	Janesville	53545	Rock County	Janesville School District	No	No	No	No	(608) 743-5200	1,400	103	13.5	37.2%	1,017 (72.6%)	49 (3.5%)	221 (15.8%)	29 (2.1%)	5 (0.4%)	0 (0.0%)	79 (5.6%)	64.8	185^th of 533 public high schools	65.3%		38.1	298^th of 431 public high schools	30.9%	113	58.4	44.7	42.0	54.9	$15,029	$750	$14,279
Parker High	Public	9-12	3125 Mineral Point Ave	Janesville	53548	Rock County	Janesville School District	No	No	No	No	(608) 743-5600	1,272	99	12.8	46.9%	869 (68.3%)	79 (6.2%)	200 (15.7%)	28 (2.2%)	6 (0.5%)	0 (0.0%)	90 (7.1%)	46.6	312^th of 533 public high schools	41.5%		32.1	327^th of 431 public high schools	24.1%	15	50.8	40.7	37.3	34.6	$16,259	$456	$15,803
Rock University High	Public, Charter	9-12	6004 S County Road G	Janesville	53548	Rock County	Janesville School District	Yes	No	No	No	(608) 743-7425	93	6	15.6	37.6%	71 (76.3%)	2 (2.2%)	16 (17.2%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	4 (4.3%)	97.9	3^rd of 533 public high schools	99.4%		98.4	2^nd of 431 public high schools	99.5%	1	95.2	76.2	71.4	89.5	$17,066	$370	$16,695
Milton High	Public	9-12	114 W High St	Milton	53563	Rock County	Milton School District	No	No	No	No	(608) 868-9300	1,057	62	17.0	20.2%	920 (87.0%)	13 (1.2%)	59 (5.6%)	19 (1.8%)	0 (0.0%)	0 (0.0%)	40 (3.8%)	73	117^th of 533 public high schools	78.0%		54.3	202^nd of 431 public high schools	53.1%	85	53.2	54.1	53.2	56.9	$14,129	$180	$13,949
Turner High	Public	9-12	1231 E Inman Pkwy	Beloit	53511	Rock County	Beloit Turner School District	No	No	No	No	(608) 364-6370	459	30	15.2	36.6%	335 (73.0%)	15 (3.3%)	58 (12.6%)	8 (1.7%)	0 (0.0%)	0 (0.0%)	43 (9.4%)	46.7	311^th of 533 public high schools	41.7%		44.2	259^th of 431 public high schools	39.9%	52	50.4	34.5	34.5	44.6	$14,162	$765	$13,397
Edgerton High	Public	9-12	200 Elm High Dr	Edgerton	53534	Rock County	Edgerton School District	No	No	No	No	(608) 561-6020	593	36	16.5	30.5%	495 (83.5%)	7 (1.2%)	61 (10.3%)	7 (1.2%)	2 (0.3%)	0 (0.0%)	21 (3.5%)	71.7	125^th of 533 public high schools	76.5%		54.8	201^st of 431 public high schools	53.4%	76	59.3	47.8	47.8	59.0	$15,619	$490	$15,129
Memorial High	Public	9-12	1225 4th St	Beloit	53511	Rock County	Beloit School District	No	No	No	No	(608) 361-3005	1,305	89	14.6	61.9%	407 (31.2%)	272 (20.8%)	513 (39.3%)	9 (0.7%)	0 (0.0%)	1 (0.1%)	103 (7.9%)	9.5	478^th of 533 public high schools	10.3%		3	420^th of 431 public high schools	2.6%	58	22.8	10.4	14.4	22.9	$16,161	$825	$15,336
Clinton Senior High	Public	9-12	112 Milwaukee Rd	Clinton	53525	Rock County	Clinton Community School District	No	No	No	Yes	(608) 676-2223	312	25	12.6	32.7%	250 (80.1%)	5 (1.6%)	50 (16.0%)	1 (0.3%)	0 (0.0%)	0 (0.0%)	6 (1.9%)	33.7	380^th of 533 public high schools	28.7%		51.2	215^th of 431 public high schools	50.1%	165	42.7	29.4	32.4	34.2	$18,222	$357	$17,865
Beloit Learning Academy	Public	6-12	910 Townline Ave	Beloit	53511	Rock County	Beloit School District	No	No	No	Yes	(608) 361-2200	153	11	14.5	78.4%	29 (19.0%)	56 (36.6%)	51 (33.3%)	0 (0.0%)	2 (1.3%)	0 (0.0%)	15 (9.8%)	2.3	525^th of 533 public high schools	1.5%					(n/a)	9.5	0.0	0.0	0.0	$19,500	$1,838	$17,662

Frequently Asked Questions about Rock River Charter School

What district is Rock River Charter School in?

Janesville School District

What is the racial makeup of Rock River Charter School?

Students at Rock River Charter School are 64% White, 12% African American, 11% Two or more races, 10% Hispanic, 3% Asian.

How many students attend Rock River Charter School?

In the 2024-25 school year, 267 students attended Rock River Charter School.

What schools feed into Rock River Charter School?

Is Rock River Charter School a good school?

Rock River Charter School ranks in the bottom 4.7% of Wisconsin high schools.

Rate Rock River Charter School!

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Latest Wisconsin data All new data »

2025–26 ACT & Forward Exam scoresNewOct 1, 2026

2021–22 through 2024–25 school spending dataJul 16, 2026

2024–25 attendance data, dropout rates & graduation ratesMar 5, 2026

2024–25 ACT & Forward Exam scoresSep 25, 2025

SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the Wisconsin Department of Public Instruction.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.