What is Naruto's family tree? I've been trying to figure out how far Naruto's heritage can be traced back. We know his parents, but seeing as we've met other Uzumakis, I figured that there might be at least some other idea of his heritage past is parents. How far/out can his family tree be traced?
There actually is somebody who try'd to get all the main characters a place in one big family tree on deviant art it is a bit outdated thou as it last updated in 2011.
I advice on downloading the picture as its really hard to read otherwise

Due to some quotes through out the manga there is also a theory floating around that Naruto has some blood ties with the senju clan.

We know that the first Hokage's wife is Mito Uzumaki so this does make some sense. Some of those theorys can be read on narutobase



And one of the most commonly accept of them would be that all descend from the Uzumaki clan to begin with.



Although there are loads of theory's and tons of rumors going about, we cannot provide a definite family tree of the people beyond Naruto's parents. As most of the theory's are still only based on small quotes such as above

For a proper time line to be set up we most likely need the parental details from either Karin or Nagatos parents, as they all descend from the Uzumaki clan

Edit:
Warning contains content shown in the manga up to chapter 670. Read with care as you might be spoiled

Breaking news on the family tree of naruto, in chapter 670 at page 11 the sage of the six says


  You are my son Ashura's 


With this and the up following pages we can confirm that Naruto is a descendant of Ashura, which is the younger brother. The creator of the Senju clan. So Naruto is in fact of the senju blood line.
And to be even more accurate, He is the reincarnation of Ashura.