Yes.  You can use Xanga Footprints in your Feedback Log to view either the username or location (state or country) of each visitor to your Xanga site.

http://www.xanga.com/private/feedbackfootprints.aspx

If you prefer to browse Xanga anonymously, change your Footprints Setting here:

http://edit.xanga.com/editaccountprivacy.aspx

Once you change your setting to "yes", you will no longer be leaving Username Footprints, but other Xangans will be able to see what state or country you're from if you visit their sites.  Also, please note that if you do choose to browse anonymously, you will no longer be able to see the usernames of your visitors in your Footprints Log as well!