Chief Sealth PTSA welcomes you. We're looking forward to a great year of involvement with our wonderful CSIHS community. Our primary goals are to build community and raise funds to support the many programs and activities that provide enrichment as well as basic needs to students and staff. Please join us - all are encouraged and welcome to participate in PTSA!

Upcoming Meetings:

PTSA Meetings for the rest of Nov & Dec

Tuesday, November 24th – 7pm  CSI PTSA Board Meeting  at Kristin Arvidson’s house (11265 Marine View Dr. SW, 98146) kma206@msn.com NO General CSI … [Read More...]


Help Denny with Holiday Fundraising

Doing some holiday shopping this weekend?  Consider helping our sister school Denny International … [Read More...]

CSI Homework Help Rubric

Use this helpful rubric to find homework help for your scholar!!! CSI Homework help rubric … [Read More...]

CSI Clothing Closet – Call for Donations

The Chief Sealth International High School is thankful for the generosity of our community to keep … [Read More...]

Volunteers Needed for Calendar sales 27th, 28th & 29th!

We are set for the calendars to be sold at the Duwamish Longhouse Native American Craft Sale … [Read More...]