Are you in District 5?
You can find out which district you live in by entering your address on the
Registrar of Voters website: https://eservices.sccgov.org/rov?tab=dt
You may register to vote online until October 19th at: https:/registertovote.ca.gov
but you can actually register in person until election day, Nov 3rd.
Check your voter registration status at: voterstatus.sos.ca.gov
Ballots should arrive in your mailboxes starting the week of Oct 5th. There are six 24 hour ballot drop off locations in the City of Santa Clara.
You can drop off any any of these 24 hours per day until Nov 3rd at 8 PM:
And you can track your ballot using Where'sMyBallot at: https://www.sos.ca.gov/elections/ballot-status/wheres-my-ballot
Here's a map of the district (CCD-5) with precinct numbers :
Bounded by Newhall and Homestead on the South and El Camino Real on the North