All that is really know is that Harry owns 12 Grimmauld Place and may live there. There is nothing specifically stating one thing or another though. I think the only clue as to where he lives is in the Epilogue when he drives to King's Cross with the family. So he must live far enough from the station for driving to be practical.
Under later life in Harry Potter wiki it says: After the end of the Second Wizarding War, Harry became an Auror at the Ministry of Magic; new Minister for Magic Kingsley Shacklebolt permitted those who had fought in the final battle to become Aurors without getting their N.E.W.T.s. In 2007, Harry became youngest head of the Auror Office at the age of 27. He helped to reform and revolutionise the Ministry along with Ron Weasley, who also became an Auror, and Hermione Granger, who was ranked high up in the Department of Magical Law Enforcement. At some point, all three of them were featured on Chocolate Frog Cards for their accomplishments.
Harry and Ginny in 2017.
Following the war, he aided in the care of his godson, Teddy Lupin, thus fulfilling his role that his own godfather, Sirius Black, never got to play. By 2017, Harry had married Ginny Weasley and had three children: two sons James Sirius, Albus Severus, and one daughter Lily Luna. In September of that year, Harry and Ginny took their three children to King's Cross Station to see James and Albus off to Hogwarts. There, they met Ron and Hermione, and their two children, Harry's niece Rose and nephew Hugo. Albus expressed a fear that he might be sorted into Slytherin house, Harry told his son he was named after two Hogwarts Headmaster's one being a Slytherin and the "bravest man he ever knew." Harry assured him that his parents would be proud of him regardless of where he was sorted, and told him that the Sorting Hat would take his preferences into consideration, which happened to himself.
Harry ensured that Severus Snape's portrait was hung in the Headmaster's office at Hogwarts.[24] He also made occasional visits to the school to give lectures to the students on Defence Against the Dark Arts.
Harry was also on "Christmas card" terms with his cousin Dudley and his family, and occasionally visited him, which were occasions dreaded by his own children.[25]
Harry also made peace with his former rival Draco Malfoy and they were civil towards each other but they were still not friends.
But it says nothing about where he lives. I imagine that he stays at Hogwarts/Hogsmead to clean up for a while. Then he'll go to the burrow or to the house he owns called Grimwald Place or maybe even the house he grew up in at Godric's Hollow. I am leaning more the the second option I listed, especially after he marries, has kids, and get a job as an Auror.
Hope this helped!
It isn't known. The only thing we know about the house is that it has four bedrooms, one for Harry and Ginny and one for each of their children. We know this because James offered to share a room with Albus so that Teddy Lupin could move in.
It was not stated in the book.
Godricks hollow
Ron Weasley
No but maybe in Deathly Hallows.
Rupert Grint
No both of them survived.
Rose Weasley is the daughter of Ron Weasley and Hermione Granger, sister of Hugo Weasley.
Ron Weasley
Ron Weasley's brother Fred was killed.
Ginny Weasley, Ron Weasley's younger sister.
Ron Weasley.
Rose and Hugo Weasley.
no
Nowhere because Ron didn't die.
No but maybe in Deathly Hallows.
Rupert Grint
No both of them survived.
Rose Weasley is the daughter of Ron Weasley and Hermione Granger, sister of Hugo Weasley.
Rupert Grint