Seymen Postal Codes, Başiskele, Kocaeli, Marmara Turkey

Find all official postal codes and zip codes for Seymen, located in Marmara, Kocaeli, Başiskele, Turkey. The table below lists the specific postal codes for various places, towns, and neighborhoods within Seymen to ensure your mail and packages are correctly routed.

Seymen on the Map

The map above highlights the geographic boundaries of the Seymen towns in Turkey. The postal codes listed on this page correspond to specific towns, villages, and post offices within this area.

What to Know About Seymen

Key Facts

Seymen is a neighborhood (mahalle) within the Başiskele district of Kocaeli Province, located in the Marmara Region of northwestern Turkey. Situated in the eastern part of the Marmara Region, Seymen lies within the broader Kocaeli Peninsula area, which forms a crucial connection between Istanbul and Anatolia. The neighborhood is positioned near the Gulf of İzmit, an eastern extension of the Sea of Marmara, giving it strategic importance within the industrial and logistical corridor that characterizes much of Kocaeli Province. While specific population figures for Seymen are not widely published at the neighborhood level, Başiskele district as a whole has experienced significant growth in recent decades, with current estimates placing its population well over 100,000 residents. As a neighborhood, Seymen does not contain further administrative subdivisions but forms part of Başiskele's urban fabric alongside other neighborhoods. The area benefits from its proximity to major transportation routes, including the D-100 highway and railway connections that link it to both Istanbul and Anatolian cities. For those seeking detailed postal code information and local services within Seymen and its immediate surroundings, accurate addressing data is essential for efficient mail delivery and location-based services.

Neighboring Regions

* Yeniköy

* Bahçecik

* Kullar

* Yuvacık