There are several different theories concerning the origin of the city's name:
• That it comes from Zone Geul-Dagh, the name given to the area by French and Belgian mining companies from French "zone" and … See more

The port city of Zonguldak suffered a heavy bombardment by the Russians during World War I, according to the caption of a Lubok popular print.
As of 1920, the port was under the control of the Hera… See more

According to the Köppen climate classification, Zonguldak has a humid subtropical climate (Cfa), though it was, until recently, considered to have an oceanic climate (Cfb), with its warmest month being well below t… See more

It was determined that coal-related lung diseases are more common than normal. During the quarantine period in Turkey, Zonguldak was also quarantined in addition to the metropolitan cities. See more

Jobs in coal in Turkey are being lost and in 2020 the EBRD proposed a just transition. However a 2021 study said the city was unprepared for coal-phase out. In 2024 a local journalist alleged that hundreds of Afghans were … See more