In my opinion, there was a real (but vague) clue to his identity that was not a red herring: the IP leak in the debug logs he sent to Hal Finney. He used Tor most of the time but briefly slipped up and likely divulged his real, residential IP address. If that's the case, then he was living in California, possibly around the LA area, as of January 2009.
https://whoissatoshi.wordpress.com/2016/02/20/satoshi-in-cal...