Yeniköy Postal Codes: 41275 | Başiskele, Kocaeli, Marmara
The Postal Codes (Posta kodları) for Yeniköy is 41275 in Başiskele, Kocaeli, Marmara, Başiskele, Turkey. The table below lists Postal Codes and postcodes for places within Yeniköy.
Postal Codes for Places in Yeniköy
Showing 4 places in Yeniköy. Last verified with official records on April 25, 2026.
| Atakent mah. | |
| Sepetlipınar mah. | |
| Sepetlipinar Sb mah. | |
| Yeniköy Merkez mah. |
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Sample Address Format for Yeniköy
[Sender Street Address]
[City, ZIP]
[Country]
Street Address / PO Box
Yeniköy, Başiskele, Kocaeli, Marmara, 41275
TURKEY
Yeniköy on the Map
The map above highlights the geographic boundaries of the Yeniköy towns in Turkey.
Yeniköy Quick Facts
| Country | Turkey (TR) |
|---|---|
| Administrative Path | Turkey → Marmara → Kocaeli → Başiskele |
| Postal Code | 41275 |
| Regions | Marmara |
| Provinces | Kocaeli |
| Districts | Başiskele |
| ISO Codes | TR / TUR / 792 |
| Top-level domain (ccTLD) | .tr |
| Coordinates | 40.693021, 29.896435 |
| Places | 4 |
What to Know About Yeniköy
Key Facts
Yeniköy is a neighborhood (mahalle) within the Başiskele district of Kocaeli Province, located in the Marmara Region of northwestern Turkey. Situated along the eastern shores of the Gulf of İzmit, Yeniköy occupies a strategic position within the broader industrial and logistical hub of Kocaeli, which serves as a critical connection point between Istanbul and Anatolia. The neighborhood benefits from its proximity to major transportation arteries, including the D-100 highway and the Ankara-Istanbul railway line, facilitating both residential and commercial activity. While specific population figures for Yeniköy itself are typically recorded at the district level, Başiskele District had a population of approximately 115,000 residents as of recent estimates, with Yeniköy contributing to this figure as one of its constituent neighborhoods. The area is characterized by a mix of residential zones and light industrial or service-oriented establishments, reflecting the economic dynamics of the larger Kocaeli area. As an administrative unit, Yeniköy does not contain further official sub-regions, functioning as the most localized level of public administration within the Turkish system. For detailed addressing and mail delivery purposes, accessing specific postal code information for streets or blocks within Yeniköy requires consulting the neighborhood-level data.
Neighboring Regions
- Bahçecik
- Kullar
- Yuvacık
- Seymen