Presidential Election:

Recep Tayyip Erdoğan 52.59
Muharrem İnce 30.64
Selahattin Demirtaş 8.4
Meral Akşener 7.29
Temel Karamollaoğlu 0.89
Doğu Perinçek 0.2

Parliamentary Election:
Justice and Development Party 42.56
Republican People’s Party 22.64
Peoples’ Democratic Party 11.7
Nationalist Movement Party 11.1
İyi Party 9.96

https://uselectionatlas.org/FORUM/index.php?topic=283164.50
https://www.yenisafak.com/secim-cumhurbaskanligi-2018/istanbul-ili-secim-sonuclari