Yenimahalle, Ankara number of traders and shopkeepers. Ankara's largest industrial area, OSTIM Industrial Zone, is on the edge of the district too. The rural areas are used mainly for growing grains and pulses. The headquarters of the national intelligence service "Millî İstihbarat Teşkilâtı" is in Yenimahalle. There are 56 neighbourhoods in Yenimahalle as of 2017. Yenimahalle, Ankara Yenimahalle is a metropolitan district of Ankara Province in the Central Anatolia region of Turkey, a fast-growing urban residential district of the city of Ankara, Turkey's capital. According to 2010 census, population of the urban center is 648,160. The district covers an area of ,
History of Ankara tetrarchy, a system of multiple (up to four) emperors introduced by Diocletian (284-305), seems to have engaged in a substantial programme of rebuilding and of road construction from Ankara westwards to Germe and Dorylaeum (now Eskişehir). In its heyday, Roman Ankara was a large market and trading center but it also functioned as a major administrative capital, where a high official ruled from the city's Praetorium, a large administrative palace or office. During the 3rd century, life in Ancyra, as in other Anatolian towns, seems to have become somewhat militarised in response to the invasions and instability of the town.