Kocaeli postal codes — Marmara, Turkiye

Kocaeli is a city of Marmara, Turkiye.

Towns in Kocaeli include Izmit, Kartepe, Basiskele, Golcuk and Korfez, together with the surrounding localities whose postal codes are listed above.

How postal codes work in Kocaeli

Turkiye uses a single national postal-code format, written as 99999. Five digits, numeric only. Codes in Kocaeli follow that format like everywhere else in the country, for example 41190 for Basiskele.

Every code listed here for Kocaeli begins with the prefix 41, which groups its delivery areas together within Turkiye's national numbering.

Postal codes across Turkiye, Kocaeli included, are issued and maintained by PTT (Posta ve Telgraf Teşkilatı). Reference information is available at www.ptt.gov.tr.

Addressing format

Addresses in Turkiye are written [Street name] [House number], [Postal code] [City], and an address in Kocaeli follows that same order:

Recipient name
[Street name] [House number], 41190 Basiskele

What this dataset covers

This reference dataset lists 31 postal codes for Kocaeli, each paired with its locality and, where the source provides them, coordinates and a time zone.