Population: 345,588
Square measure: 25,84 km2
Quarters: 14

It joined to district statue in 2008. Maltepe on south, Kadikoy on west, Uskudar(Skutari) on northwest, Umraniye on north, Cekmekoy on northeast and Sancaktepe on east are the neighbour of Atasehir. The district is 25.84 km2, its population is 345.588 and there are 14 quarters inside of borders.

14 quarters of Atasehir as follows by numbers:

The quarters were related to Uskudar Municipality as before;

1-Fetih
2-Esatpasa
3-Ornek

The quarters were related to Kadıkoy Municipality as before;

4-Yenisahra
5-Icerenkoy

6-Inonu

7-Kayisdagi
8-Barbaros
9-Kucukbakkalkoy

10-The south part of O4 and E80 highway of Ataturk district.
 

The quarters were related to Kadıkoy Municipality as before;

11-Yeni Camlica
12-The south part of O4 highway of  Mustafa Kemal district.
13-The south part of E80 highway of Namık Kemal district.

14-The south part of O4 highway and connected E80 - D100 highways of Ferhatpasa  district.

Fetih, Ornek ve Esatpasa districts that have been related to Atasehir, were taken from Uskudar(Skutari).