 Of Gouldsboro's households 71.7% were families, 55.8% were headed by a heterosexual married couple (Pennsylvania did not allow same-sex marriage until May 20, 2014, after the 2010 Census had been completed), and 30.3% included children under the age of 18.Of households 10.8% were headed by a female householder with no husband present, 5.1% by a male householder with no wife present, and 28.3% consisted of non-families.Of all households 24.1% were made up of individuals, and 13.3% consisted of a person 65 years of age or older living alone.