I don't put my city on my profile because it's a really small community but I do have that I live in Southern CA, which at least narrows it down. I have made friends from this board, and gotten together with them, in TX, WA and CA, all places I spend time in during the year, just by looking for that information on profiles. It's a great way to meet people who share a common interest!
You can search for members by location. Go into the Member List, go to Search Members (it's in blue to the right of the page numbers), you'll see Advanced Search below the box that pops up, click it, then scan down to the box that says Location and type in your location. A bunch of people should pop up.