Gaziantep is the most populous province in the GAP region. According to TURKSTAT, Address Based Population Registration System (ABPRS), the total population, population density (people/km2) and the annual population growth rate of Gaziantep is 1.799.558, 264, and 25.87 ‰, respectively.
Average household size of Gaziantep province is 4.6 person per house.
Men and women constitute 50.4% and 49,6% of population, respectively.
34.4%, 60.9% and 4.7% of the population are composed of 0-14, 15-64 and older than 65 years age group , respectively. Youth population (15-24 age group) of the province is 17.6%.
89.18% of the population of Gaziantep live in urban areas, and 10.82% in rural areas.
In 2012, 41,672 people migrated to Gaziantep, while 39,410 people moved out of the province making the immigration rate of the province 1.26.