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#5994 of 9,539 schools in CA

Six Rivers Charter High

High School · Northern Humboldt Union High · Arcata, CA

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

Charter

1720 M St., Arcata, CA 95521

  • Math 33% vs CA 32% (2024)
  • Reading 70% vs CA 52% (2024)
  • 80%+ 4-year graduation

Academics

Full Profile · 4/4 metrics
Student Progress7.1Very Good25%
Year-over-year improvement in student test scores.
View breakdown
Years of Data14
Annual Change-1.11 pts/yr
Data Period2009–2024
TrendDeclining
Academics7.1Very Good25%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency33.3% (2024 CAASPP)
Reading/ELA Proficiency70.4% (2024 CAASPP)
Math vs. State Avg+5.3 pts
Reading vs. State Avg+14.5 pts
Overall Proficiency52% (2024 CAASPP, Math+ELA)
Expected (poverty-adj.)57% (model expectation from 2024 CAASPP)
vs. Expected-5.5 pts
Adjusted Percentile57th
College Readiness5.0Average30%
Graduation rates, AP course participation, and IB availability.
View breakdown
4-Year Graduation Rate80%+
AP Participation4.7%
IB ProgramNo
Resources & Environment3.0Needs Improvement20%
Student-teacher ratio, district spending per student, and attendance.
View breakdown
Student-Teacher Ratio21.2:1
District spending per student$17,026
Chronic Absenteeism58.5%

Students at Six Rivers Charter High score 52% proficient, which is below what's typical for similar communities (expected: 57%).

How we calculate scores →

2024 CAASPP proficiency

Most recent published year. School vs. CA average.

Math Proficiency33%(2024 CAASPP)
School
State
32%(2024 CAASPP)
ELA Proficiency70%(2024 CAASPP)
School
State
52%(2024 CAASPP)

Trend

↓ Declining

Proficiency has fallen 8 points since 2019, to 52% in 2024, across a 16-year record (2009–2024).

Show all 14 years
2009
Math
70%
ELA
70%
2010
Math
70%
ELA
90%
2011
Math
50%
ELA
70%
2012
Math
70%
ELA
50%
2013
Math
50%
ELA
70%
2014
Math
10%
ELA
50%
2015
Math
30%
ELA
30%
2016
Math
50%
ELA
70%
2017
Math
30%
ELA
70%
2018
Math
50%
ELA
70%
2019
Math
50%
ELA
70%
2020*
Math
25%
ELA
75%
2021*
Math
25%
ELA
75%
2024
Math
33%
ELA
70%

Multi-year averages used by the rating model: math 43% (multi-year average, 2009-2024) · reading/ELA 66% (multi-year average, 2009-2024)

* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.

Based on 30 test records from CA state assessments and EdFacts (NCES).

Equity & diversity

Shown separately, not included in the overall score

Free/reduced lunch

30.2%

Students qualifying for federal meal assistance

How we rate schools

A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.

See how we rate

The neighborhood

Where Six Rivers Charter High sits, and what the surrounding area looks like.

Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries.

Getting around & local context

  • Walk 76Very Walkable
  • Bike 97Biker’s Paradise
  • City Safety: High2,282/100K

Powered byWalk Score

FBI Uniform Crime Reporting · 2024 · city context (Arcata), not school-level safety or attendance eligibility. Source details

Source period: 2024. Freshness not available.

Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)

Median income

$54,324

Median home value

$478,600

Median rent

$1,300/mo

College educated

45%

Homeownership

36.7%

Poverty rate

26.7%

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

Programs & students

Programs & Offerings

AP/IB Programs1AP course offered
4.7% participation·State avg: 2.6 AP courses·CRDC via Urban Institute · SY 2021–22
Advanced STEM Courses4of 5 advanced subjects offered
Algebra II, Advanced Math, Calculus, Chemistry, Physics·CRDC via Urban Institute · SY 2021–22

Compare nearby

Nearby same-level schools

4 from a 5-mile search; district fallback available

SchoolScoreGradesDistanceEnrollmentCompare
Arcata HighEnrollment path unverified6.69–120.0 mi1,011Compare →
Pacific Coast High (continuation)Enrollment path unverified6.29–120.0 mi40Compare →
Northcoast Preparatory and Performing Arts AcademyCharter · enrollment unverified7.46–120.5 mi130Compare →
Mad River High (continuation)Enrollment path unverified6.49–12Not available48Compare →

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.

Northern Humboldt Union High

Schools in district
5
Rank in district
#4 of 5
District spending per student
$17,026NCES F-33 · FY 2023 · This annual source is three years behind the current year.
District child poverty rate
13.2%Census SAIPE · 2024

Six Rivers Charter High is listed in Northern Humboldt Union High; a district label does not verify attendance for an address.

About Six Rivers Charter High

Six Rivers Charter High is a public high school in Arcata, CA, part of Northern Humboldt Union High, serving approximately 106 students in grades 9th-12th with a 21.2:1 student-teacher ratio. It holds a MySchoolScout rating of 5.7 out of 10 and ranks #5,994 of 9,539 schools in CA. State assessment records show 43% math proficiency (multi-year average, 2009-2024) and 66% reading/ELA proficiency (multi-year average, 2009-2024).

Frequently asked questions

Common questions about Six Rivers Charter High

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 #5,994 of 9,539 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 43% math proficiency (multi-year average, 2009-2024) and 66% reading/ELA proficiency (multi-year average, 2009-2024).

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 factsNCES Common Core of Data (CCD) (SY 2023–24)

Grades
9th – 12th
Enrollment
106
Student-Teacher Ratio
21.2:1
Teachers (FTE)
5
Type
regular
Setting
Remote Town
County
Humboldt County
Chronic Absenteeism (SY 2022-23)
58.5%
4-Year Graduation
80%+
Area population (ZIP 95521)
21,684
Area average commute
18.3 min
Area median age
29.2
About this school's data

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

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 · 2024 CAASPP · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: 2024 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 · 2024 CAASPP · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: 2024 CAASPP. A newer release may be available.
  • Derived from source records rather than read directly from one field.
Student progress (growth)
NCES EdFacts · 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, 2009-2024; directory SY 2023–24

About our data · How we calculate scores

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