Six Rivers Charter High School is a WASC accredited charter school part of the Northern Humboldt Union High School District. It is located on Arcata High School's campus at 1720 M Street in downtown Arcata, California. The school charter places a limit on the number of students in attendance at one hundred.
Serving 28 students in grades 9-12, Mad River High (Continuation School) ranks in the bottom 50% of all schools in California for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is ≤20% (which is lower than the California state average of 34%). The percentage of students achieving proficiency in reading/language arts is <50% (which is higher than the California state average of 47%).
The student-teacher ratio of 14:1 is lower than the California state level of 21:1.
Minority enrollment is 50% of the student body (majority Hispanic), which is lower than the California state average of 80% (majority Hispanic).
Quick Facts (2026)
- School Type: Alternative school
- Grades: 9-12
- Enrollment: 28 students
- Student-Teacher Ratio: 14:1
- Minority Enrollment: 50%
- Graduation Rate: 80-89% (Btm 50% in CA)
- Overall Testing Rank: Bottom 50%
- Math Proficiency: ≤20% (Btm 50%)
- Reading Proficiency: <50% (Top 50%)
- Science Proficiency: <50% (Top 20%)
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
Top Rankings
Mad River High (Continuation School) ranks among the top 20% of public schools in California for:
Category
Attribute
Science Proficiency
School Overview
Mad River High (Continuation School)'s student population of 28 students has declined by 12% over five school years.
The teacher population of 2 teachers has stayed relatively flat over five school years.
School Type
Grades Offered
Grades 9-12
Total Students
28 students
Total Classroom Teachers
2 teachers
Year Founded
2004
Colors
Black, Maroon, Pink
School Rankings
Mad River High (Continuation School) ranks within the bottom 50% of all 9,523 schools in California (based off of combined math and reading proficiency testing data).
The diversity score of Mad River High (Continuation School) is 0.68, which is more than the diversity score at state average of 0.63. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#4999 out of 9523 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
≤20%
34%
Reading/Language Arts Test Scores (% Proficient)
<50%
47%
Science Test Scores (% Proficient)
<50%
29%
Student-Teacher Ratio
14:1
21:1
American Indian
11%
1%
Asian
n/a
12%
Hispanic
18%
56%
Black
3%
5%
White
50%
20%
Hawaiian
n/a
n/a
Two or more races
18%
6%
All Ethnic Groups
Graduation Rate
80-89%
87%
Chronically Absent Students
(22-23)21.4%
27.7%
Eligible for Free Lunch
82%
54%
Eligible for Reduced Lunch (22-23)
3%
8%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CA Dept. of Education
School Notes
- School Mascot: Pirates
Frequently Asked Questions
What is Mad River High (Continuation School)'s ranking?
Mad River High (Continuation School) is ranked #4999 out of 9,523 schools, which ranks it among the bottom 50% of public schools in California.
What percent of students have achieved state testing proficiency in math and reading?
≤20% of students have achieved math proficiency (compared to the 34% CA state average), while <50% of students have achieved reading proficiency (compared to the 47% CA state average).
What is the graduation rate of Mad River High (Continuation School)?
The graduation rate of Mad River High (Continuation School) is 80-89%, which is lower than the California state average of 87%.
How many students attend Mad River High (Continuation School)?
28 students attend Mad River High (Continuation School).
What is the racial composition of the student body?
50% of Mad River High (Continuation School) students are White, 18% of students are Hispanic, 18% of students are Two or more races, 11% of students are American Indian, and 3% of students are Black.
What is the student-teacher ratio of Mad River High (Continuation School)?
Mad River High (Continuation School) has a student ration of 14:1, which is lower than the California state average of 21:1.
What grades does Mad River High (Continuation School) offer ?
Mad River High (Continuation School) offers enrollment in grades 9-12
What school district is Mad River High (Continuation School) part of?
Mad River High (Continuation School) is part of Northern Humboldt Union High School District.
School Reviews
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