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Kocaeli Province

File:The_Kocaeli_Sign_in_İzmit_City_Center_01.06.2025_02.jpg · Wikimedia Commons · See Wikimedia Commons

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Kocaeli Province

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Also known as Kocaeli, TR421

province in northwestern Turkey

AI overview

Kocaeli Province is a region located in northwestern Turkey, positioned strategically between major population centers. It matters because of its important geographic location and role as a significant industrial and economic hub in Turkey.

AI-generated from the Wikipedia summary — may contain errors.

Wikidata facts

Official name
Kocaeli
Country
Turkey
Located in
Turkey
Continent
Asia
Capital
İzmit
Official language
Turkish
Population
1851790
Area
3397
Elevation
3
Body of water
Sea of Marmara
Shares border with
Yalova Province
Official website
www.kocaeli.gov.tr
Image
Kocaeli location districts.svg
Households
650469
Life expectancy
78.25
GDP per capita
21.985
Dialing code
262
Licence plate code
41
Show 19 more facts
Commons category
Kocaeli Province
native label
Kocaeli ili
postal code
41000–41999
topic's main category
Category:Kocaeli Province
language used
Turkish
category for people born here
Category:Births in Kocaeli Province
category of associated people
Category:People from Kocaeli Province
male population
934554
female population
917236
name in kana
コジャエリ
annual number of weddings
14726
different from
İzmit
suicide rate
4.52
total fertility rate
1.44
mean age
34.02
minimum temperature record
-18.0
maximum temperature record
44.1
water as percent of area
0.73
inception
1327-00-00
Sources (15)

via Wikidata · CC0

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Encyclopedic overview

Kocaeli Province (Turkish: Kocaeli ili, pronounced [koˈdʒaeli]) is a province and metropolitan municipality of Turkey and one of only three not to have the same official name as its capital, İzmit, which is thus also sometimes called Kocaeli. Its area is 3,397 km (1,312 sq mi), and its population is 2,102,907 (2023). The province is the successor of the Ottoman-era Sanjak of Kocaeli. The largest towns in the province are İzmit and Gebze. The traffic code is 41.

The province is located at the easternmost end of the Sea of Marmara around the Gulf of İzmit. Kocaeli is bordered by the province of Istanbul and the Marmara Sea to the west, the Black Sea to the north, the province of Sakarya to the east, the province of Bursa to the south and the province of Yalova to the southwest. The metropolitan area of Istanbul extends to the Kocaeli-Istanbul provincial border.

Excerpted from Wikipedia’s “Kocaeli Province” article, available under the CC BY-SA 4.0 licence.

Gallery (4)

On the map

2 mapped locations