Trillium Charter School is a public TK-5 elementary charter school in Northern California.
We are located in Arcata, near Cal Poly Humboldt.
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OUR MISSION:​  To nurture community values within a diverse curriculum.  We offer small group and individualized core academic instruction balanced with strong school wide environmental science, art education and mindfulness.   

Our school consists of 3 combination grade classes with credentialed teachers and part-time paraprofessionals. We are proud to maintain a very low staff to student ratio for core academics.

In addition to our site-based program, Trillium also offers non-classroom based independent study that blends both in-classroom learning with individualized home schooling.



The school office is open 8:30a-4:00pm daily during the school year
phone (707) 822-4721   fax (707) 822-7054
​Before or after hours calls please leave a message &
currently enrolled families please send us a message via ParentSquare
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