Trillium Charter School is a public K-5 elementary school in Arcata, CA.

Our mission is to nurture community values within a diverse curriculum.  We offer small group and individualized core academic instruction balanced with strong school wide environmental science and art education.  

We offer before and after school care for working families and participate in the national school lunch program, including free or reduced meals for eligible students.  Our school consists of three combination classes with credentialed teachers and part-time paraprofessionals in each class. We are proud to maintain a very low staff to student ratio for core academics.

Contact us at (707) 822-4721


Forms & Links:
About Trillium
After Care Contract 2019-20
After Care Payment Plan
Trillium Code of Conduct
School Calendar 2019-20
Application to Enroll
Emergency Information
Enrollment Checklist
Records Release
Parent Handbook
Trillium LCAP
School Accountability Report Card
Trillium SARC
All current parents - Please join Parent Square, our Parent-Staff online information forum https://parentsquare.com

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