Is Istanbul in Europe or Asia? Both, Split by the Bosphorus

Istanbul is in both Europe and Asia. The Bosphorus strait runs through the middle of the city and divides it between the two continents. The old city and most of the famous sights lie on the European side, while residential neighborhoods such as Üsküdar and Kadıköy lie on the Asian side. Ferries, bridges and a rail tunnel under the water connect the two. The airports follow the same split, as our guide to IST or SAW shows: Istanbul Airport for the old city, Sabiha Gökçen for the Asian side. Football follows the split too: Fenerbahçe play in Kadıköy on the Asian side, where Fenerbahçe vs Trabzonspor falls on December 13.

Is Istanbul in Europe or Asia?

Istanbul is in Europe and Asia at the same time, because the Bosphorus splits it in two. The strait links the Black Sea with the Sea of Marmara. So the city has grown along both of its shores for centuries. Today, about two in three people in Istanbul live on the European side: at the end of 2025, about 10.1 million lived there and about 5.7 million on the Asian side. Turkey is an EU candidate country, not a member, so Istanbul uses the Turkish lira and lies outside the Schengen area.

What is on the European side of Istanbul?

The European side holds the historic peninsula and most first-visit sights. Here you find Hagia Sophia, the Blue Mosque, Topkapı Palace and the Grand Bazaar. Across the Golden Horn, Galata and Beyoğlu follow. Then, along the Bosphorus shore, Beşiktaş and Dolmabahçe Palace face Asia across the water.

What is on the Asian side of Istanbul?

In contrast, the Asian side is greener, more residential and slower. At its edge on the strait stands Üsküdar, with the Maiden’s Tower on its rock just offshore. Further south, Kadıköy and Moda are lively, young and full of food. Above them, the hill of Çamlıca looks back over the whole city.

How do you cross between Europe and Asia in Istanbul?

You can cross between Europe and Asia in Istanbul by ferry, by rail or by road. The ferry is the most memorable way, because the crossing itself is a short sightseeing trip. Boats run from Eminönü, Karaköy, Kabataş and Beşiktaş to Üsküdar and Kadıköy. Also, Marmaray trains run through an immersed tube tunnel under the strait. Road traffic, by contrast, crosses on bridges such as the Bosphorus Bridge. Finally, one İstanbulkart pays for ferries, the metro, Marmaray and trams.

For the story of how the city grew on two continents, read our history of Istanbul. For the strait itself, see our Bosphorus guide.

Where should you go first on the Asian side of Istanbul?

Start in Kuzguncuk, a small neighborhood of wooden houses between the hills and the shore. Our guide Ömer Çelik begins his favorite route there, after a ferry from Europe, and ends it in a busy market street in Kadıköy. Then, for lunch in Kadıköy, Yanyalı Fehmi Lokantası is on the MICHELIN Bib Gourmand list. Read Ömer’s Asian side route before you cross.

Would you like to spend a day on both continents? One ferry puts you in Asia; give us a day and we will plan both sides. Start with our Istanbul Asian side tour or a Bosphorus tour.