Skip to main content

Charter high school · Northern Humboldt Union High · Arcata, California

Six Rivers Charter High

Six Rivers Charter High rates 5.7, right at the middle of Northern Humboldt Union High's high schools, whose rated median is 5.7.

High schools, 1 to 10This campus against public high schools around it that are rated on verified state test data.
5.7this school

5.7 on a one-to-ten scale; the Northern Humboldt Union High median is 5.7.

#6,288 of 9,557 schools in California · Northern Humboldt Union High: 5 high schools rated, median 5.7

The brief

A Northern Humboldt Union High charter high school where students score 6 points below what's typical for similar communities.

It ranks 6,288 of 9,557 schools in California and 3 of 5 in Northern Humboldt Union High.

Six Rivers Charter High is a charter school: it enrolls by application rather than by address, so check its enrollment process directly before choosing a neighborhood for it.

Math38%4 points above the California average of 34%2025 CAASPP
Reading69%16 points above the California average of 53%2025 CAASPP
Proficiency is down 16 points across the 17-year record (2009–2025) and has held near 54% recently.2025 CAASPP; 34 test records from CA state assessments and EdFacts (NCES).

What the rating is made of, each out of 10

Student Progress
6.8
25% of the rating
Academics
7.1
25% of the rating
College Readiness
5.5
30% of the rating
Resources & Environment
3.0
20% of the rating
About this school's data1 correction under review · rating: low confidence · 7 sources, 2019–2025

Every number on this page comes from a published source with a stated period. Where a source is partial, aging, an estimate, or describes a surrounding area rather than the school, that limitation is named here.

Attendance data is under correction. This existing Resources & Environment score and overall rating may still reflect an unverified attendance input.

Full Profile · 4/4 metrics

Multi-year averages used by the rating model: math 42% (multi-year average, 2009-2025) · reading/ELA 67% (multi-year average, 2009-2025).

School directory (enrollment, grades, staff, contact)
NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
  • Source period: SY 2023–24. A newer release may be available.
MySchoolScout rating and rank
MySchoolScout ranking model · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
Math proficiency
State department of education · 2025 CAASPP · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: 2025 CAASPP. A newer release may be available.
  • Derived from source records rather than read directly from one field.
Reading/ELA proficiency
State department of education · 2025 CAASPP · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: 2025 CAASPP. A newer release may be available.
  • Derived from source records rather than read directly from one field.
Student progress (growth)
State assessments · Mixed source periods · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Available for part of the eligible units; results may not represent the full area.
  • Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
Neighborhood (income, housing, education)
U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
  • Older source: ACS 2019–2023 5-year estimates. Use as historical context.
  • Reported for the ZCTA for ZIP 95521; this does not measure the attendance area.
Programs (AP/IB, athletics, gifted)
CRDC via Urban Institute · SY 2021–22 · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: SY 2021–22. A newer release may be available.

Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2025; directory SY 2023–24

The neighborhood

Where it sits, and what the area looks like.
Six Rivers Charter High and the 20 nearest high schools, each pin colored by its score.Pins are locations, not attendance boundaries. Verify the enrollment path with the district.

The area

Median income
$54,324
Median home value
$478,600
Median rent
$1,300/mo
College educated
45%
Homeownership
36.7%
Poverty rate
26.7%

U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 95521; this is area context, not an attendance boundary.

Getting around

Walk Score
76
Very Walkable
Bike Score
97
Biker's Paradise
City reported crime
2,097/100K
Reported Part-1 offenses (violent + property + arson) per 100,000 residents, from the FBI Uniform Crime Reporting program for Arcata. This is a city-level reported-crime measure, not a school safety rating.

Walk, transit and bike scores byWalk Score

FBI Uniform Crime Reporting · 2025 · city context (Arcata), not school-level safety or attendance eligibility. Source details

Source period: 2025. Freshness not available.

Programs and who goes here

What the campus offers, and who it enrolls.

Programs

AP and IB
1 AP course
4.7% participation · state average 2.6 AP courses · CRDC via Urban Institute · SY 2021–22
Advanced STEM courses
4 of 5
Algebra II, Advanced Math, Calculus, Chemistry, Physics · CRDC via Urban Institute · SY 2021–22

Who goes here

Free or reduced lunch
30.2%
Students qualifying for federal meal assistance. Shown separately, never in the score.

NCES Common Core of Data (CCD).

Compare nearby

Grade-compatible schools using the same rating model.
Public-school ratings. Grade-compatible schools within 5 miles, best rated first.
  1. 7.5Compare →
  2. Redwood Coast Montessori4.7 mi · charter
    6.3Compare →
  3. 5.9Compare →
  4. Six Rivers Charter Highthis school
    5.7
  5. Laurel Tree Charter1.6 mi · charter
    5.5Compare →
  6. 5.0Compare →
Five grade-compatible schools using the same rating model sit within 5 miles, and three rate higher than Six Rivers Charter High.Public-school ratings. Straight-line distance from this campus. Pins are locations, not attendance boundaries; verify the enrollment path with the district.

Distance is proximity only; it is not attendance eligibility.

Enrollment path unverified: Potential public school; its attendance or application path has not been classified.

Charter · enrollment unverified: Potential charter option; enrollment requirements have not been verified.

The record

What is on file, and where each number came from.

Questions families ask

What grades does Six Rivers Charter High serve?

Six Rivers Charter High serves students in grades 9th through 12th.

How many students attend Six Rivers Charter High?

Six Rivers Charter High has an enrollment of approximately 106 students.

What is the student-teacher ratio at Six Rivers Charter High?

The student-teacher ratio at Six Rivers Charter High is 21.2:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Six Rivers Charter High rank in CA?

Six Rivers Charter High ranks #6,288 of 9,557 schools in CA.

What is Six Rivers Charter High's MySchoolScout rating?

Six Rivers Charter High has a current MySchoolScout rating of 5.7 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.

What are the test scores at Six Rivers Charter High?

Based on loaded state assessment records, Six Rivers Charter High has 42% math proficiency (multi-year average, 2009-2025) and 67% reading/ELA proficiency (multi-year average, 2009-2025).

Is Six Rivers Charter High a charter school?

Yes, Six Rivers Charter High is a charter school. Charter schools are publicly funded but independently operated, often with more flexibility in curriculum and teaching methods.

Is Six Rivers Charter High a Title I school?

No, Six Rivers Charter High is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Six Rivers Charter High?

30.2% of students at Six Rivers Charter High qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.

School facts

Grades
9th – 12th
Enrollment
106
Student-teacher ratio
21.2:1
Teachers (FTE)
5
Type
Regular
Title I
No
Setting
Remote Town
County
Humboldt County
4-year graduation
80%+
Class of 2023
Rank in district
#3 of 5
Schools in district
5
District spending per student
$17,026
NCES F-33 · FY 2023 · This annual source is three years behind the current year.
District child poverty rate
13.2%
Census SAIPE · 2024
Area population (ZIP 95521)
21,684
Area average commute
18.3 min
Area median age
29.2

NCES Common Core of Data (CCD) (SY 2023–24).

Related reading

Data from NCES Common Core of Data, California Dept. of Education, and U.S. Census ACS for the 2023–24 school year. Rankings computed by MySchoolScout. See all data sources.