With a population of 41,486 https://www.rijksoverheid.nl/onderwerpen/caribische-deel-van-het-koninkrijk/vraag-en-antwoord/waaruit-bestaat-het-koninkrijk-der-nederlanden as of January 2019 on an area of 34 sqkm , it encompasses the southern 40% of the divided island of Saint Martin, while the northern 60% of the island constitutes the French overseas collectivity of Saint-Martin.