Chances for UW Seattle, UCSD, UW Madison, Purdue, University of Minnesota Twin Cities, USC, and UMD

With an unweighted 3.15 HS GPA, all of the schools in your thread title should be considered reaches, especially for the CS major at Washington and UCSD. That is even before considering cost.

State of residency and cost constraints are needed to be able to choose safety and match schools.