Yes. All counties except for Modoc, Lassen and Shasta (I think) have been extended.
https://www.gov.ca.gov/2023/03/02/more-time-to-file-state-taxes-for-californians-impacted-by-decembe...
https://www.irs.gov/newsroom/irs-may-15-tax-deadline-extended-to-oct-16-for-disaster-area-taxpayers-...
