Bomer married publicist Simon Halls in 2011; the marriage only became public to the media in 2014. In an interview discussing his marriage, Bomer said that his marriage to Halls was a very small event in New York City: "It was very chill and very small–just our closest and dear ones. There is a security, a validity. It's just a feeling, I think–something about saying vows in front of the people around you who love and support you. I think it was good for our family." Halls has three children conceived through surrogacy: Kit Halls (b. 2005), and then twin brothers, Walker and Henry Halls (b. 2008).