Probably.  To vote in the state of California, you must be 18 years or older and a state resident.  You can even vote while you are still on probation. 

However, you cannot be:

        •    in prison,

        •    on parole,

        •    currently serving a local state prison sentence in county jail,

For more information about where you can pick up an application to register to vote, or to register to vote on line, go to:  http://registertovote.ca.gov/