The percentage of people in Gosford who were born overseas is 15% which is slightly lower than the national average at 22.2% and the percentage of people who have Australian citizenship is only slightly higher than the national average of 86.1% at 88.4%. As for languages spoken at home English only was the most common language spoken by 90.4% of the population which is substantially higher than national average at 78.5%. Italian was second with 0.4%, while no other language was spoken by more than 0.3% of the total population. Anglicanism was the most common religion at 28.2%, followed by Catholicism at 26.6%, No Religion with 14.9% and Uniting Church at 5.6%. Median incomes for the population aged 15 years and over was only slightly lower in both weekly individual income and weekly household income but slightly higher in the weekly family income category.