Foster is married to his long-time partner, Tracy Foster.
It is not sure when the couple started dating or got married, but Foster's Instagram hints they have been together since 2015. Also, they celebrate their wedding anniversary every June 17.
In December 2017, the pair welcomed a daughter, Lia Lynette Emerson Foster, into their family. Foster took to Twitter to announce the birth of his baby girl, posting a picture where he held his daughter while covering his face.
"Averaging what feels like 3.25 diaper swaps per waking hour," the podcaster captioned the picture. Then, gushing about his newfound fatherhood, Foster shared how barbershop visits had become sparse since his kid's arrival.
"The fade has to stretch a bit further," Foster added, reasoning why baseball caps were mandatory for his pictures. Right after sharing about the new troubling irresponsibilities, he stated, "But there's also SO MUCH CUTE BABY."
Since the birth of his kid, Foster has kept his fans updated about his daughter, posting pictures of her on his socials. On September 29, 2020, he posted a picture of the three-year-old, revealing she had joined preschool.