Register to vote online at the Secretary of State website https://registertovote.ca.gov/.
You can request a voter registration form by the calling the Registrar of Voter’s office at (858) 565-5800 or emailing rovmail@sdcounty.ca.gov. Voter registration forms are also available by appointment at the City Clerk’s Office by calling (858) 668-4530 or emailing cityclerk@poway.org.