[brudgers]

There's no reason to assume that you will make less simply because of location. Indeed, if there are fewer qualified candidates locally than might be found in San Francisco, then perhaps you're in a position to negotiate for more money. People aren't interchangeable, if someone in SF could do the work, they wouldn't be looking for someone where you live.

The company's quick alternative is to move someone from another location. Not only is such a person unlikely to take a pay cut based on location, they may ask for more. And certainly will ask for relocation expenses.

Relocation expenses, recruiter fees, etc are all part of the company's budget, not just salary. Don't sell yourself short.

Good luck.