|• Mayor||Muharrem Akdemir (CHP)|
|• District||632.98 km2 (244.39 sq mi)|
|• District Density||340/km2 ( 870/sq mi)|
Zonguldak is a city and the capital of Zonguldak Province in the Black Sea region of Turkey. It was established in 1849 as a port town for the nearby coal mines in Ereğli and the coal trade remains its main economic activity. According to the 2009 census, Zonguldak has a population of 108,792. The current mayor is İsmail Eşref, representing the CHP.
The city's name probably comes from Zone Geul-Dagh, the name given to the area by French and Belgian mining companies. Göldağı ("Lake Mountain") is the highest mountain in the vicinity of Devrek district.
Following information about Ereğli coal mining history, will help us to understand Zonguldak name is originated from Zone Geul-Dagh in French: (In Catholic Encyclopedia, with reference of year 1908, Zonguldak town is called as "Zoungoul-Dagh" or in Turkish, Zoungoul mountain; or with Turkish+French meaning, Lake/Göl mountain zone... "Goul-Dagh is a mountain on the south of Zonguldak town, with a little lake... It was a reference benchmark for the new mining zone and sea port location in Ereğli region after 1860s.")
Another etymology is that the name originates from the Turkish zongalık which means swamp or zongura or it may have arisen from the name of the nearby ancient settlement of Sandraka or Sandràke (in Ancient greek Σανδράκη).
According to another theory the name may have come from a compound word, namely Jungle-Dagh, from jungle which the French entrepreneurs named due to uneven and wooded geography of the land, and dağ meaning "a mountain" in Turkish.
Zonguldak has an oceanic climate (Köppen climate classification: Cfb); with high and evenly distributed rainfall the year round. Summers are warm and humid, and the average temperature is around 21°C in July and August. Winters are cool and damp, and the average temperature is around 6°C in January and February.
Precipitation is heaviest in autumn and early winter and lightest in spring. Snowfall is quite common between the months of December and March, snowing for a week or two, and it can be heavy once it snows.
The water temperature like in the whole Turkish Black Sea coast is always cool and fluctuates between 8° and 20°C throughout the year.
|Climate data for Zonguldak|
|Average high °C (°F)||9.1
|Average low °C (°F)||3.6
|Precipitation mm (inches)||133.1
|Avg. rainy days||18.1||15.5||14.6||12.3||10.5||9.1||7.7||7.2||9.5||13.2||13.9||17.8||149.4|
|Mean monthly sunshine hours||65.1||78.4||127.1||162||232.5||288||316.2||291.4||225||155||99||68.2||2,107.9|
|Source: Devlet Meteoroloji İşleri Genel Müdürlüğü |
International relations 
Twin towns — Sister cities 
Zonguldak is twinned with:
See also 
- "Area of regions (including lakes), km²". Regional Statistics Database. Turkish Statistical Institute. 2002. Retrieved 2013-03-05.
- "Population of province/district centers and towns/villages by districts - 2012". Address Based Population Registration System (ABPRS) Database. Turkish Statistical Institute. Retrieved 2013-02-27.
- Governorship of Zonguldak - A Brief History (Turkish)
- Financial Manager's Office of Zonguldak - A General Description (Turkish)
- "Zonguldak". Devlet Meteoroloji İşleri Genel Müdürlüğü. Retrieved 17 March 2011.
- (Turkish) (English)
- (Turkish) (English)
- Zonguldak sitesi(Turkish)
- Provincial governor's official website (Turkish)
- History of Zonguldak
- everything about of Zonguldak
- Pictures of Zonguldak
- Zonguldak Fotoğrafları
-  19th century photographs relating to coal mining
- Photos of Zonguldak