Enrollment
34
Elementary
DISTRICT 284 · STATE 465
SCHOOL COMMUNITY·PACIFIC UNION ELEMENTARY·NCES 062943011947
Trillium Charter
1464 Spear Ave., Arcata, CA 95521 · (707)822-4721 · Humboldt County
GRADES KG–05ELEMENTARY33-TOWNCHARTERTITLE IREGULAR SCHOOL34 STUDENTS
Student : Teacher
11.7:1
3 FTE teachers
DISTRICT 15.1:1 · STATE 22.3:1
Free / Reduced Lunch
76%
26 students
DISTRICT 66% · STATE 65%
Community
0
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2022-23
| Grade | Students | Share |
|---|---|---|
| Kindergarten | 6 | 18% |
| Grade 1 | 5 | 15% |
| Grade 2 | 10 | 29% |
| Grade 3 | 1 | 3% |
| Grade 4 | 7 | 21% |
| Grade 5 | 5 | 15% |
Student demographics
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.
Gender split
Test scores
CAASPP 2023-24 . % met or exceeded standardEnglish Language Arts
31.3%
CA avg 47.1% . -6.8pp since 2014
Math
23.5%
CA avg 35.6% . +0.5pp since 2014
What this means: On the CAASPP, California's statewide test, about 31 of every 100 students at this school read and write at grade level and about 24 of 100 do math at grade level. Across all California schools, those numbers are about 47 and 36. Reading and writing scores are down about 7 points since 2014, while math scores have held steady.
Performance levels, 2023-24
| Subject | Standard Exceeded | Standard Met | Standard Nearly Met | Standard Not Met |
|---|---|---|---|---|
| English Language Arts | 12.5% | 18.8% | 6.3% | 62.5% |
| Math | 11.8% | 11.8% | 17.6% | 58.8% |
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 |
|---|---|---|
| 2023-24 | 31.3% | 23.5% |
| 2022-23 | 57.1% | 46.7% |
| 2021-22 | 57.9% | 31.6% |
| 2018-19 | 66.7% | 33.3% |
| 2017-18 | 60.0% | 36.0% |
| 2016-17 | 60.9% | 47.8% |
| 2015-16 | 43.0% | 40.0% |
| 2014-15 | 38.0% | 23.0% |
% met or exceeded standard, all students and all tested grades.
Source: CAASPP. All students, all grades. See all years and grades →
Where Trillium Charter ranks
Among elementary schools| Measure | This school | In California | In Humboldt County |
|---|---|---|---|
| Enrollment ranked largest first | 34 | #5,810 of 5,915 | #39 of 48 |
Ranked against other public elementary 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.
5-year change
SY 2017-18 vs SY 2022-23Enrollment
34
-11 (-24%) vs 2017
-15% since 2010-11, when it was 40
Student : Teacher
11.7:1
was 15.0:1
% White
71%
was 78%
% Hispanic
21%
was 11%
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2022-23 | 34 | 2.9 | 11.7:1 | 76% (26) |
| 2020-21 | 33 | 2 | 16.5:1 | 73% (24) |
| 2017-18 | 45 | 3 | 15.0:1 | 71% (32) |
| 2015-16 | 44 | 3 | 14.7:1 | 80% (35) |
| 2010-11 | 40 | N/A | N/A | 73% (29) |
Source: NCES Common Core of Data. Rows are the federal collections on file for Trillium Charter.
Since 2017-18: students down 24% (45 to 34); teachers down 3% (3 to 2.9).
About Trillium Charter
In Arcata, California, part of Humboldt County, Trillium Charter is an elementary school. Its grade span covers kindergarten through 5, with 34 students on the rolls. That compares with an average of about 465 students for elementary schools in California.
Trillium Charter is one school in Pacific Union Elementary, a system of 2 schools with 568 students.
Federal enrollment data show Trillium Charter is 71% White. Other groups include 21% Hispanic, 6% multiracial, and 3% Black. In Humboldt County overall, the White share is about 72%.
Its staff includes 2.9 full-time-equivalent teachers, for about 11.7 students per teacher. Across elementary schools in California, the average ratio is 22.3:1. Trillium Charter has a free or reduced-price lunch rate of 76%. Compared with the 60% average for public schools in Humboldt County, the school's rate is higher.
The school is in Humboldt County, where the median household earns about $61,160 a year, a bachelor's degree or higher is held by about 33% of adults, and the share of residents below the poverty line is 11%. Trillium Charter shares Humboldt County with 91 other public schools.
Measured in a straight line, Trillium Charter is less than a tenth of a mile from Trillium Charter. Around the school, at least 8 other public schools are within five miles.
Trillium Charter is coded as Town: Remote in federal locale data. Trillium Charter is a charter school, a type of public school that operates under a charter.
Over the 5 years from 2017-18 to 2022-23, enrollment decreased 24%. Over the same years, the Hispanic share increased from 11% to 21%. The number of students per teacher dropped from 15.0 to 11.7 over 5 years.
This page is a place to ask questions and share updates about open houses, carpools, and field trips at Trillium Charter. Members of the school community can share what they know.
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 Pacific Union Elementary
- Pacific Union ElementaryElementary · 534 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 Trillium Charter schools
One other US public school is named Trillium Charter. Trillium Charter is the 2nd largest of the 2.
- Trillium CharterArcata, CA · 40 students
Nearby schools
- Trillium Charter0.0 mi · 40
- Pacific Union Elementary0.5 mi · 534
- Arcata Elementary0.5 mi · 240
- Laurel Tree Charter0.7 mi · 197
- Arcata Educational Resource Center0.9 mi · 27
- Six Rivers Charter High0.9 mi · 113
Frequently asked questions
About Trillium CharterHow large is Trillium Charter?
Trillium Charter enrolls approximately 34 students in grades KG-05.
What age range does Trillium Charter serve?
Trillium Charter serves students from grade KG through grade 05.
How many students per teacher at Trillium Charter?
Approximately 11.7:1 students per teacher at Trillium Charter.
How diverse is Trillium Charter?
Trillium Charter reports a student body of 71% White, 21% Hispanic, 3% Black, 6% Two or more.
Is Trillium Charter public or private?
Trillium Charter is a public K-12 school operated as a charter, overseen by Pacific Union Elementary.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.