Don't want to spoil it for you but the answer is YES she is. But that phase of her life isn't much explored..
Katniss is married to Peeta at the end of Mockingjay.
at the end of mockingjay both peeta and katniss get married and have two kids.
She lives in District 12 at the end.
Katniss's mom never dies in any of the books. She is still alive at the end of Mockingjay.
The rebels overthrow the capitol and Katniss marries Peeta
Yes, in the end of Mockingjay it mentions them having kids.
Katniss is brave
For the public, not real, but at the end of Mockingjay, their married and have two children.
Katniss promises her that she will wear the mockingjay pin durung The Hunger Games.
Yes, Katniss chooses Peeta. (:
katniss lives in mockingjay but peeta dies
in book one katniss's mother promises that she will take care of prim and not leave