XF 1.5 Searching Users by Location

The location field a user fills out contains only a single data element but has anyone tried to search it for, e.g., all the users located in a particular state or country? I noticed that it's not searchable in the ACP.

How important is having more detailed location information to other XF forums, and how to people deal with the lack of it? An add-on?

Thanks in advance.