Australia
Austria
Belize
Brazil
Canada
China
Finland
France
Germany
Hungary
India
Indus Valley civilization
Ireland
Japan
Kazakhstan
Netherlands
Poland
Spain
Sweden
United Kingdom (including all New Towns under the New Towns Act of 1946 and successive Acts)
United States
... have children under the age of 18 living with them, 58.8% are married couples living together, 12.8% have a female householder with no husband present, and 24.0% are ...