Samantha - hmmm, I'm hard-pressed to come up with family for her, too. She once mentioned that she worked at a Dairy Queen when she was a teenager, and that endeared me to her.
In the episode where she is sick and has just recently bought her apartment in the Meat Packing District (so she doesn't have a Super to hang her drapes), she talks about her mother who was a stay at home mom and devoted her life to her kids. Her mother is the one who would make her that disgusting cough syrup drink Carrie had to make her. I don't remember other mentions though.
I agree that it isn't unusual for even very close friends to not meet your family if you live out of state. I am very close to my sister and very close to my friends yet very few of them have met my sister (I visit her).
Edited by Betsyb, Apr 3, 2012 @ 4:37 PM.