File:The_Kocaeli_Sign_in_İzmit_City_Center_01.06.2025_02.jpg · Wikimedia Commons · See Wikimedia Commons
Also known as Ismid, Ismit, Nicomedia, Izmit
İzmit () is a municipality and the capital district of Kocaeli Province, Turkey. Its area is 480 km2, and its population is 376,056 (2022). The capital of Kocaeli Province, it is located at the Gulf of İzmit in the Sea of Marmara, about east of Istanbul, on the northwestern part of Anatolia. Kocaeli Province (including rural areas) had a population of 2,079,072 inhabitants in 2022, of whom approximately 1.2 million lived in the largely urban İzmit City metro area made up of Kartepe, Başiskele, Körfez, Gölcük, Derince and Sapanca (in Sakarya Province). Similar to Istanbul, the area of İzmi
İzmit is a major city in northwestern Turkey, serving as the capital of Kocaeli Province with a population of about 376,000, and anchors a metropolitan area of roughly 1.2 million people located on the Gulf of İzmit near Istanbul. The city's strategic location on the Sea of Marmara has made it an important population and economic center in the region.
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thumb | 300px | Imperial Pavilion of Sultan Abdülaziz The first known city hereabouts, from maybe 700 BC, was called Astakos (Ἀστακός), and lay 20 km south, in what is nowadays Başiskele. It was at the tip of the Gulf of Izmit so it was an obvious place to establish a port trading between Anatolia and the Mediterranean. "Astakos" means lobster, so either the fishing was good or it indicated the pincer-like tip of the Sea of Marmara. To the north was the Kingdom of Bithynia bordering the Black Sea: this waged wars to gain Astakos and eventually won a pyrrhic victory. The wrecked town was rebuilt further north in 264 BC by Nicomedes I of Bithynia, who made it his capital and (no doubt after much thought) named it Nicomedia.
By 70 BC Rome had grown into the regional power, and Bithynia sought their aid against foes further east. Aid slid into influence then into colonisation and it became a Roman province. It was important to them as the borderland against even more dangerous foes, the Persians. Nicomedia became one of the four co-capitals of the Roman Tetrarchy until 330 AD when power was centralised in Byzantium, the later Constantinople / Istanbul. The Ottomans took the city in 1337, calling it at first İznikmid: the prefix "Iz" means "towards" so this meant the vicinity of Nicomedia, and eventually got shortened to İzmit.
The city was roiled by several conflicts, the last being the Greek-Turkish War of 1919-22, and by earthquakes. The most terrible recent shock was on 17 …
The area of most interest is around the clock tower and within walking distance.
The rest of town sprawls so you need a dolmuş or taxi. Of the two boulevards between clock tower and commercial district, İnönü Cd is one-way westbound while Cumhuriyet Cd is two-way, so look for transport accordingly.
Trams (Akçaray) run on a single line from the bus station in the east through the centre to Seka and the western suburbs.
thumb | 300px | The clock tower The Clock Tower (Saat Kulesi) is in the leafy plaza opposite the railway station, though it now feels cut off by D-100 highway roaring overhead. Built in 1901, it was one of a job-lot of neoclassical clock towers built all across the Empire to mark 25 years of the reign of Sultan Abdul Hamid II (1842-1918). He presided over a great expansion of the railways but a collapse of Ottoman power. He was deposed in 1907, and what with fear of assassination and 13 wives to mollify he didn't much get to travel and admire all his clock towers. The Izmit tower stands 16.4 m tall and is prettified with fountains; it was restored in 2006. is an alley winding up from the clock tower with many preserved or restored traditional Ottoman houses. Finest of these is the Selim Sirri Pasha Mansion, seldom open. Some 50 m east is the House of Atatürk and the National Struggle (Atatürk ve Milli Mücadele Anı Evi), intermittently open. was built shortly after the Ottoman conquest of 1332, and repaired after subsequent earthquakes. It's a simple low building. Fevziye Mosque is 500 m east of the railway station on Cumhuriyet Cd. It was first built in the early 1500s, repaired and rebuilt since, and completely destroyed in the 1999 earthquake so the present building is a replica. or "New Mosque" (Yeni Cuma Camii) was built in 1579. is a collection of mock-up Ottoman buildings. You may be able to stroll around at quiet times, but it's in regular use as a film and TV set, whe…
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İzmit () is a municipality and the capital district of Kocaeli Province, Turkey. Its area is 480 km2, and its population is 376,056 (2022). The capital of Kocaeli Province, it is located at the Gulf of İzmit in the Sea of Marmara, about east of Istanbul, on the northwestern part of Anatolia. Kocaeli Province (including rural areas) had a population of 2,079,072 inhabitants in 2022, of whom approximately 1.2 million lived in the largely urban İzmit City metro area made up of Kartepe, Başiskele, Körfez, Gölcük, Derince and Sapanca (in Sakarya Province). Similar to Istanbul, the area of İzmit is coterminous with its province. It is also the most populated of any city or town in Turkey whose name isn't shared with the province it is located in.
İzmit was known as Nicomedia and Ólbia in antiquity, and was the eastern and most senior capital city of the Roman Empire between 286 and 324, during the Tetrarchy introduced by Diocletian. Following Constantine the Great's victory over co-emperor Licinius at the Battle of Chrysopolis in 324, Nicomedia served as an interim capital city for Constantine between 324 and 330. During the Ottoman Empire, İzmit was the capital of the Sanjak of Kocaeli. In the present day, Istanbul-İzmit area is one of the main industrial regions in Turkey.
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thumb | 300px | Within the Paper Museum Beach: the esplanade is alright for strolling, but you wouldn't sit on the shore or venture into the murky water. East at the head of the gulf is industrial. The best of a poor choice is Başiskele south shore of the gulf, though it's stony. Football: Kocaelispor were promoted in 2025 so they now play soccer in Süper Lig, the top tier. Their Kocaeli Stadyumu (capacity 34,700) is on Tunaoğlu Cd 5 km east of town centre.
Lots of small supermarkets: Migros and A101 are the main chains, open daily to 22:00. Outlet Center and 41 Burda are big retail malls south side of town just beyond Kumla Creek. Its shops are open daily 10:00-22:00.
Pişmaniye is a local confectionery. Likened to cotton candy, it is fine strands of sweetened flour cooked in butter and then rolled up to form a ball shape. A cluster of seafood places on the seafront by the railway station include Seka Palmiye, Izmit Yelken Kulubu, Beyaz Yalı, Pehlivan and Izmit Marina. Near the clock tower are two sushi cafes, Takasushi and Daichi.
thumb | 300px | Old street in Izmit "Bar Street" is a surprising collection of pubs, in the alley off Cumhuriyet Cd 200 east of the clock tower.
There are two accommodation strips. South edge of town along D100 is budget, and you may have to hold your nose. East along D605 are the pricier business hotels. Başiskele on the south shore of the gulf is a separate town. You might prefer to stay here if you're driving towards Bursa.
İzmit has 4G from all Turkish carriers. As of Oct 2022, 5G has not rolled out in Turkey.
Mount Kartepe 30 km southeast is a winter sports resort. Maşukiye village on its north slopes has grown into a service town, with lots of visitor accommodation and eating places. The Tolerance Way is a waymarked hiking trail leading south over the Samanlı Mountains to İznik. Eskişehir is the city southeast where you enter the plains of Anatolia. Bursa to the southwest is modern, but as the first city captured by the Ottomans it's full of historic sights. The gravitational pull of Istanbul, the Turkish Jupiter, will capture you sooner or later.
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