Serving 263 students in grades 9-12, Grantsburg High 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 11-19% (which is lower than the Wisconsin state average of 40%). The percentage of students achieving proficiency in reading/language arts is 40-49% (which is higher than the Wisconsin state average of 38%).
The student-teacher ratio of 15:1 is higher than the Wisconsin state level of 13:1.
Minority enrollment is 13% of the student body (majority Hispanic), which is lower than the Wisconsin state average of 33% (majority Hispanic).
Quick Facts (2025)
- Grades: 9-12
- Enrollment: 263 students
- Student-Teacher Ratio: 15:1
- Minority Enrollment: 13%
- Graduation Rate: ≥90% (Top 50% in WI)
- Overall Testing Rank: Bottom 50%
- Math Proficiency: 11-19% (Btm 50%)
- Reading Proficiency: 40-49% (Top 50%)
- Science Proficiency: 30-39% (Btm 50%)
- Source: National Center for Education Statistics (NCES), WI Dept. of Education
School Overview
Grantsburg High School's student population of 263 students has stayed relatively flat over five school years.
The teacher population of 18 teachers has grown by 5% over five school years.
Grades Offered
Grades 9-12
(Supplemental Virtual)
(Supplemental Virtual)
Total Students
263 students
Gender %
Total Classroom Teachers
18 teachers
Year Founded
1905
School Calendar
Last Day of School
Mon. May 25, 2026
Campus Size
50
School Motto
'Truth and Honor'
School Mascot
Wild Boars
School Rankings
Grantsburg High 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 Grantsburg High School is 0.24, which is less 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
#1243 out of 1962 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
11-19%
40%
Reading/Language Arts Test Scores (% Proficient)
40-49%
38%
Science Test Scores (% Proficient)
30-39%
44%
Student-Teacher Ratio
15:1
13:1
American Indian
1%
1%
Asian
n/a
4%
Hispanic
5%
14%
Black
n/a
9%
White
87%
67%
Hawaiian
n/a
n/a
Two or more races
7%
5%
All Ethnic Groups
Graduation Rate
≥90%
90%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
35%
37%
Eligible for Reduced Lunch
7%
4%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), WI Dept. of Education
School Notes
- School Mascot: Wild Boars
Profile last updated: 02/09/2025
Frequently Asked Questions
What is Grantsburg High School's ranking?
Grantsburg High School is ranked #1243 out of 1,962 schools, which ranks it among the bottom 50% of public schools in Wisconsin.
What schools are Grantsburg High School often compared to?
Grantsburg High Schoolis often viewed alongside schools like Siren High School, Webster High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
11-19% of students have achieved math proficiency (compared to the 40% WI state average), while 40-49% of students have achieved reading proficiency (compared to the 38% WI state average).
What is the graduation rate of Grantsburg High School?
The graduation rate of Grantsburg High School is 90%, which is equal to the Wisconsin state average of 90%.
How many students attend Grantsburg High School?
263 students attend Grantsburg High School.
What is the racial composition of the student body?
87% of Grantsburg High School students are White, 7% of students are Two or more races, 5% of students are Hispanic, and 1% of students are American Indian.
What is the student-teacher ratio of Grantsburg High School?
Grantsburg High School has a student ration of 15:1, which is higher than the Wisconsin state average of 13:1.
What grades does Grantsburg High School offer ?
Grantsburg High School offers enrollment in grades 9-12 (Supplemental Virtual).
What school district is Grantsburg High School part of?
Grantsburg High School is part of Grantsburg School District.
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