Still do not know in what state Summerlin is.
Hmmm, there seem to be some clues in the article:
“Wahlberg, along with his wife of 13 years, Rhea Durham, and their four children, Ella, 18, Michael, 16, Brendan, 13, and Grace, 12, are now residents of Las Vegas, Nevada. ... The Las Vegas Review-Journal reports that Wahlberg and his family now live in a $15.6 million home in Summerlin, which has a population of just under 31,000 residents.”
Summerlin is in NV.