For the 2026 school year, there are 6 public charter schools serving 1,133 students in Madison, WI.
The top-ranked public charter schools in Madison, WI are Isthmus Montessori Academy Public, Nuestro Mundo and Monona Grove Liberal Arts. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Madison, WI public charter schools have an average math proficiency score of 18% (versus the Wisconsin public charter school average of 28%), and reading proficiency score of 28% (versus the 32% statewide average). Charter schools in Madison have an average ranking of 2/10, which is in the bottom 50% of Wisconsin public charter schools.
Minority enrollment is 68% of the student body (majority Black and Hispanic), which is more than the Wisconsin public charter school average of 54% (majority Hispanic and Black).
Best Public Charter Schools in Madison, WI (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Isthmus Montessori Academy Public
Charter School
(Math: 20-24% | Reading: 45-49%)
Rank:
Rank:
5/
Bottom 50%10
1802 Pankratz St
Madison, WI 53704
(608) 661-8200
Madison, WI 53704
(608) 661-8200
Gr: PK-12 | 210 students Student-teacher ratio: 15:1 Minority enrollment: 32%
Rank: #22.
Nuestro Mundo
Charter School
(Math: 30-34% | Reading: 25-29%)
Rank:
Rank:
3/
Bottom 50%10
902 Nichols Rd
Madison, WI 53716
(608) 204-1076
Madison, WI 53716
(608) 204-1076
Gr: PK-5 | 311 students Student-teacher ratio: 11:1 Minority enrollment: 74%
Rank: #33.
Monona Grove Liberal Arts
Charter School
(Math: ≤10% | Reading: 21-39%)
Rank:
Rank:
2/
Bottom 50%10
5301 Monona Dr
Madison, WI 53716
(608) 316-1924
Madison, WI 53716
(608) 316-1924
Gr: 6-12 | 93 students Student-teacher ratio: 10:1 Minority enrollment: 15%
Rank: #44.
Badger Rock Middle School
Charter School
(Math: 6-9% | Reading: 20-24%)
Rank:
Rank:
1/
Bottom 50%10
509 E Badger Rd
Madison, WI 53703
(608) 442-1335
Madison, WI 53703
(608) 442-1335
Gr: 6-8 | 92 students Student-teacher ratio: 9:1 Minority enrollment: 71%
Rank: #55.
One City Elementary School
Charter School
(Math: 6-9% | Reading: ≤10%)
Rank:
Rank:
1/
Bottom 50%10
1707 W Broadway
Madison, WI 53713
(608) 531-2128
Madison, WI 53713
(608) 531-2128
Gr: PK-5 | 328 students Student-teacher ratio: 13:1 Minority enrollment: 91%
Rank: n/an/a
One City Preparatory Academy
Charter School
1707 W Broadway
Madison, WI 53713
(608) 531-2128
Madison, WI 53713
(608) 531-2128
Gr: 6-8 | 99 students Student-teacher ratio: 9:1 Minority enrollment: 98%
Frequently Asked Questions
What are the top-ranked public charter schools in Madison, WI?
The top-ranked public charter schools in Madison, WI include Isthmus Montessori Academy Public, Nuestro Mundo and Monona Grove Liberal Arts.
How many public charter schools are located in Madison?
6 public charter schools are located in Madison.
What is the racial composition of students in Madison?
Madison public charter schools minority enrollment is 68% of the student body (majority Black and Hispanic), which is more than the Wisconsin public charter schools average of 54% (majority Hispanic and Black).
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