Province · Turkey
Kocaeli Postal codes
12 districts
Browse all 12 districts in Kocaeli. Find postal codes and location information.
Understanding Kocaeli: Postal codes (5 digits)
Winery and bonded warehouse filings in Turkey list five-digit postcodes (34000); TR excise records cross‑check postal sectors against facility.
XXProvince
XXDistrict
XXMunicipality
XXVillage
Interactive map of Kocaeli · Turkey — postal codes & coordinates
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