Among the seven geographical regions, the Marmara region has the second-smallest area, yet the largest population; it is the most densely populated region in the country.
Etymology
The region is named for the Sea of Marmara, which in turn is named after Marmara Island, named for the marble (μάρμαρος) found there.
The Marmara region has a borderline Mediterranean and humid subtropical climate on the Aegean Sea and south Marmara Sea coasts, and an oceanic climate on the Black Sea coast. Summers are warm to hot and moderately dry whereas winters are cool, wet and sometimes snowy. The coastal climate keeps the temperatures relatively mild.