The Istanbul–Ankara high-speed train stops at Gebze and İzmit; Marmaray extends as far as Gebze. The most practical airport is Sabiha Gökçen; the TEM, the D-100 and the Osmangazi Bridge make connections easy.
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| District | Distance from centre | Transport | Directions |
|---|---|---|---|
| Başiskele | — | Başiskele is 10 km from İzmit. Access is by the D-100 highway. There are regular municipal bus services from İzmit. | Directions |
| Çayırova | — | Çayırova is 45 km from İzmit and 50 km from Istanbul. It lies close to the E-80 (TEM) and D-100 highways. It is 5 km from Gebze. | Directions |
| Darıca | — | Darıca is 50 km from İzmit and 45 km from Istanbul. The E-80 (TEM) and D-100 highways pass nearby. Marmaray and suburban trains provide connections to Istanbul. | Directions |
| Derince | — | Derince is 5 km from İzmit. Transport is provided by the D-100 highway. There is a railway connection. Regular municipal bus services run from İzmit. | Directions |
| Dilovası | — | Dilovası is 40 km from İzmit and 55 km from Istanbul. The E-80 (TEM) and D-100 highways pass through the district. It is 10 km from Gebze. | Directions |
| Gebze | — | Gebze is 50 km from Istanbul and 45 km from İzmit. The E-80 (TEM) and D-100 (E-5) motorways pass through the district. Marmaray and the suburban train provide links to Istanbul. It is 30 km from Sabiha Gökçen Airport. | Directions |
| Gölcük | — | Gölcük is 20 km from İzmit and 120 km from Istanbul. The D-100 highway passes through the district. There are regular municipal bus services to İzmit. There is a sea connection to Istanbul. | Directions |
| İzmit | — | İzmit is 100 km from Istanbul and 330 km from Ankara. The E-80 (TEM) and D-100 (E-5) motorways pass through the district. Marmaray and the suburban train provide links to Istanbul. Cengiz Topel Airport is 30 km from the district. There is an intercity bus terminal. | Directions |
| Kandıra | — | Kandıra is 45 km from İzmit. Access is by road. There are regular minibus services from İzmit to the Kefken and Kerpe coasts. | Directions |
| Karamürsel | — | Karamürsel is 35 km from İzmit and 130 km from Istanbul. Access is by the D-100 highway. There are regular bus services to İzmit and Yalova. There is a sea connection to Yalova. | Directions |
| Kartepe | — | Kartepe is 15 km from İzmit and 115 km from Istanbul. Access is by the TEM motorway and the D-100 highway. There are regular municipal bus services from İzmit. The ski centre is reached via Maşukiye. | Directions |
| Körfez | — | Körfez is 15 km from İzmit and 85 km from Istanbul. The E-80 (TEM) and D-100 highways pass through the district. Marmaray and the suburban train provide a connection to Istanbul. | Directions |
You can reach Kocaeli by rail, road, air and sea. The Istanbul–Ankara high-speed train stops at Gebze and İzmit; Marmaray extends as far as Gebze. The most practical airport is Sabiha Gökçen; the TEM, the D-100 and the Osmangazi Bridge make connections easy.
Use the "Get directions on Google Maps" button on this page for up-to-date directions to Kocaeli from wherever you are; the table also has a directions link for each district.