The city where Turkish Statistical Institute has its headquarters in has a population of what in the urban center?
Ankara Ankara (  ;  ] ), formerly known as Ancyra (Greek: Ἄγκυρα ) and Angora, is the capital of the Republic of Turkey. With a population of 4,587,558 in the urban center and 5,150,072 in its province , it is Turkey's second largest city after former imperial capital Istanbul, having overtaken İzmir. The former Metropolitan archbishopric remains a triple titular see (Latin, Armenian Catholic and Orthodox).
Ceyhan Ceyhan (] ) is a city and a district in the Adana Province, in southern Turkey, 43 km east of Adana. With a population of over 157,000, it is the largest district of the province, outside the city of Adana. Ceyhan is the transportation hub for Middle Eastern, Central Asian and Russian oil and natural gas. The city is situated on the Ceyhan River that flows through Çukurova plain. The Ceyhan River is dammed at Aslantas to provide flood control and irrigation for the lower river basin around Ceyhan.