State tax filing

1. Am I CA residency or WA residency for 2019, and later 2020?   For income tax purposes you are a CA non resident  but you will still pay CA taxes on the CA income.

 

2. Do I need to update my driver license to reflect my new address (the apartment I rent in SF)? This is not tax related but I think it is residency related question.   This is a question for the CA DMV.