One wonders how, considering Starfleet Academy and Command is in San Francisco is they didn't know where Alameda was.
Wasn't it they didn't know how to get there? Mass transit would be mystery to a culture used to beaming everywhere.
There no indication that (prime universe) Uhura went to the academy.
I've found that even today that unless you regularly ride the bus/train that mass transit is a mystery to the majority of people, I know people who are literally scared to get on a bus because they're not sure exactly where it goes and how to get off where they want.