The Channel Islands are an archipelago in the English Channel, off the French coast of Normandy. They include two Crown (UK) dependencies: the Bailiwick of Jersey, which is the largest of the islands; and the Bailiwick of Guernsey, consisting of Guernsey, Alderney, Sark, Herm and some smaller islands. Although they are not part of the United Kingdom, the UK is responsible for the defense and international relations of the islands.

As per the World Population Prospects the United Nations, the population of the Channel Islands  in 2020 is 176,461 (176 thousand)

Estimated Population of  Channel Islands in 2024  – 178 thousand 

Source: World Population Prospects 2019