Location beneath username or sig

[delmarva]

I have a east coast wide forum and I have done some SEO research on the site. I find that a lot of my members signatures are found in the Google results.

New members are already required to put in their zip code when registering for a weather feature.

Is it possible to use that zip code and create a line of text under their sig or username that states, For example: "fishing in Maryland" if their zip code is one in Maryland?

If not, could I add something to the profile that asks the member, "what is your favorite place to fish?" and have their answer show up under their username? This way, the keywords would show up each time they made a post!

Thanks for the replies in advance.