St. Lucie County, Florida
In 2000 there were 76,933 households out of which 26.30% had children under the age of 18 living with them, 55.30% were married couples living together, 11.10% had a female householder with no husband present, and 29.50% were not related. 23.50% of all households were made up of people living alone and 12.40% had someone living alone who was 65 years of age or older.  The average household size was 2.47 and the average family size was 2.89.