Estimated by allfamousbirthday.com? Pardon me if I am a little skeptical.
And nobody said he doesn’t live in the district. He moved to SF as a lawyer, then became Deputy City Attorney, then was elected to Board of Supervisors, then elected to state senate. His quote about not being able to afford to live in SF is most likely to point out that rent control in SF keeps qualifying rents affordable while market-rate rents are extremely unaffordable.
Also, why would someone run for a district they didn’t live in?