By entering my phone number, I found that my number was linked to Madison, WI. Fairly unsurprising.
According to my census hometown data, I am most likely to be a white male between the ages of 45-55 years old.
On Facebook, I found out that I don't have my privacy settings figured out at all. Basically everything's visible to the public: my music, books, political affiliation, etc. That one was particularly concerning, since I thought I had figured it all out.
When googling my name, I found Youtube tutorials that I did for an assignment in a class I took freshman year, which was sort of funny. I also found my father related to me on whitepages.
In general, someone could find me if they looked hard and/or knew what to look for, but there isn't terribly much information about me out there on the internet.