Enrollment
106
High
DISTRICT 346 · STATE 838
SCHOOL COMMUNITY·NORTHERN HUMBOLDT UNION HIGH·NCES 060303010800
Six Rivers Charter High
1720 M St., Arcata, CA 95521 · (707)825-2428 · Humboldt County
GRADES 09–12HIGH33-TOWNCHARTERREGULAR SCHOOL106 STUDENTS
·
allk12 Grade
Not graded
This school has no state test results for 2023-24 or 2024-25 to grade, which is common for schools that end before third grade. How grades work
Student : Teacher
21.3:1
5 FTE teachers
DISTRICT 16.4:1 · STATE 18.2:1
Free / Reduced Lunch
30%
32 students
DISTRICT 51% · STATE 65%
Community
0
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2023-24
| Grade | Students | Share |
|---|---|---|
| Grade 9 | 28 | 26% |
| Grade 10 | 29 | 27% |
| Grade 11 | 25 | 24% |
| Grade 12 | 24 | 23% |
Student demographics
58%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 60% · STATE 62% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Test scores
CAASPP 2024-25 . % met or exceeded standardEnglish Language Arts
69.0%
CA avg 49.1% . +21.0pp since 2014
Math
37.9%
CA avg 37.7% . +18.9pp since 2014
What this means: On the CAASPP, California's statewide test, about 69 of every 100 students at this school read and write at grade level and about 38 of 100 do math at grade level. Across all California schools, those numbers are about 49 and 38. Reading and writing scores are up about 21 points since 2014, while math scores are up about 19 points.
Performance levels, 2024-25
| Subject | Standard Exceeded | Standard Met | Standard Nearly Met | Standard Not Met |
|---|---|---|---|---|
| English Language Arts | 37.9% | 31.0% | 10.3% | 20.7% |
| Math | 24.1% | 13.8% | 20.7% | 41.4% |
Share of tested students at each CAASPP level. Each student counts in one level, so a row adds to about 100%.
CAASPP results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 69.0% | 37.9% |
| 2023-24 | 70.4% | 33.3% |
| 2022-23 | 65.4% | 38.5% |
| 2021-22 | 55.6% | 14.8% |
| 2020-21 | 54.5% | N/A |
| 2018-19 | 62.5% | 45.8% |
| 2017-18 | 63.2% | 36.8% |
| 2016-17 | 73.1% | 46.1% |
| 2015-16 | 32.0% | 27.0% |
| 2014-15 | 48.0% | 19.0% |
% met or exceeded standard, all students and all tested grades.
Source: CAASPP. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
52.6%
composite math + reading, all grades
Predicted
61.9%
based on CA schools with similar FRL share
Beats by
-9.2pp
below demographic expectation
What this means: About 53% of students here test proficient in math and reading, compared with the roughly 62% typical for California schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among California's top nor bottom 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Where Six Rivers Charter High ranks
Among high schools| Measure | This school | In California | In Humboldt County |
|---|---|---|---|
| State test proficiency ranked highest first | 52.6% | #283 of 1,052 | #1 of 8 |
| Math proficiency ranked highest first | 37.9% | #299 of 1,056 ▲ 17 | #1 of 8 ▲ 1 |
| Reading proficiency ranked highest first | 69.0% | #271 of 1,056 ▼ 41 | #1 of 8 no change |
| 3-year test score change ranked biggest gain first | +18.3pp | #18 of 1,044 | #1 of 8 |
| Enrollment ranked largest first | 106 | #1,558 of 2,093 | #11 of 23 |
| Free and reduced lunch ranked highest share first | 30.2% | #1,404 of 1,575 | #11 of 11 |
Ranked against other public high schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
6-year change
SY 2017-18 vs SY 2023-24Enrollment
106
+8 (+8%) vs 2017
+12% since 2010-11, when it was 95
Student : Teacher
20.3:1
was 22.8:1
% White
59%
was 77%
% Hispanic
16%
was 4%
% Black
1%
was 2%
% Asian
1%
was 3%
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2023-24 | 106 | 5.2 | 20.3:1 | 30% (32) |
| 2022-23 | 109 | 5.1 | 21.3:1 | 36% (39) |
| 2020-21 | 111 | 4 | 27.8:1 | 41% (45) |
| 2017-18 | 98 | 4.3 | 22.8:1 | 52% (51) |
| 2015-16 | 96 | 5 | 19.2:1 | 46% (44) |
| 2010-11 | 95 | N/A | N/A | 24% (23) |
Source: NCES Common Core of Data. Rows are the federal collections on file for Six Rivers Charter High.
Since 2017-18: students up 8% (98 to 106); teachers up 21% (4.3 to 5.2).
About Six Rivers Charter High
Six Rivers Charter High is a public high school run by Northern Humboldt Union High in Arcata, California. Its grade span covers grades 9 through 12, with 106 students on the rolls. Across high schools in California, the average enrollment is about 838.
Six Rivers Charter High is one of the 5 schools that make up Northern Humboldt Union High (1,731 students in total).
Federal enrollment data show Six Rivers Charter High is 59% White. Enrollment also includes 19% multiracial, 16% Hispanic, and 4% Native American. The school's White share is 13 points below the 72% share among Humboldt County residents. A diversity index of 58% means there is a 58% chance two randomly chosen students at Six Rivers Charter High are from different groups.
There are 5.2 full-time-equivalent teachers at Six Rivers Charter High, giving a ratio of 21.3:1. High schools in California have an average ratio of 18.2:1. By family income, 30% of students are eligible for free or reduced-price lunch. For comparison, public schools in Humboldt County average 60%.
On BeatsExpectations, Six Rivers Charter High is 9.2 points below its prediction, a result in the middle 80% of California schools.
Looking at the county, Humboldt County, the median household earns about $61,160 a year, 33% of adults hold a bachelor's degree or higher, and about 11% of people live in poverty. Humboldt County has 92 public schools with about 17,319 students, including Six Rivers Charter High.
Straight-line distance to the nearest public school, Arcata High, is less than a tenth of a mile. There are at least 8 other public schools within five miles.
On the NCES locale scale, the school is Town: Remote. NCES lists Six Rivers Charter High as a charter school.
From 98 students in 2017-18, enrollment increased to 106 by 2023-24. White students went from 77% of enrollment in 2017-18 to 59% in 2023-24. The school's ratio dropped from 22.8:1 to 20.3:1 between 2017-18 and 2023-24.
People can post here about open houses, carpools, and field trips and other school topics. Parents, students, alumni, and staff are welcome to post.
Humboldt County at a glance
View full county profilePopulation
134,541
Census ACS
Median income
$61,160
Household, ACS
Bachelor's+
33%
Adults 25+
Poverty rate
11%
Below federal line
Schools in county
92
17,319 students
Quick facts
Related schools
Other schools in Northern Humboldt Union High
- Arcata HighHigh · 1,007 students
- McKinleyville HighHigh · 566 students
- Mad River High (Continuation)High · 28 students
- Pacific Coast High (Continuation)High · 24 students
Other schools in Arcata
- Arcata HighHigh · 1,007 students
- Pacific Union ElementaryElementary · 534 students
- Arcata ElementaryElementary · 240 students
- Coastal Grove CharterElementary · 235 students
- Sunny Brae MiddleMiddle · 232 students
- Laurel Tree CharterCombined · 197 students
Other Six Rivers Charter High schools
One other US public school is named Six Rivers Charter High. Six Rivers Charter High is the 2nd largest of the 2.
- Six Rivers Charter HighArcata, CA · 113 students
Nearby schools
- Arcata High0.0 mi · 1,007
- Pacific Coast High (Continuation)0.0 mi · 24
- Six Rivers Charter High0.1 mi · 113
- Arcata Elementary0.5 mi · 240
- Northcoast Preparatory and Performing Arts Academy0.5 mi · 118
- Coastal Grove Charter0.5 mi · 235
Frequently asked questions
About Six Rivers Charter HighHow many students attend Six Rivers Charter High?
Six Rivers Charter High enrolls approximately 106 students in grades 09-12.
What age range does Six Rivers Charter High serve?
Six Rivers Charter High serves students from grade 09 through grade 12.
What is the student-teacher ratio at Six Rivers Charter High?
The student-to-teacher ratio at Six Rivers Charter High is approximately 21.3:1 (5 FTE teachers).
What is the racial breakdown of students at Six Rivers Charter High?
At Six Rivers Charter High, the student body is approximately 59% White, 16% Hispanic, 1% Black, 1% Asian, 19% Two or more.
Who oversees Six Rivers Charter High?
Six Rivers Charter High is overseen by Northern Humboldt Union High in Humboldt County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.