Ulleung County (Korean: 울릉군, Ulleung-gun; Hanja: 鬱陵郡) is a county in North Gyeongsang Province, South Korea. Ulleung County has a population of 10,426 making it the least populated county in South Korea. Ulleung County consists mainly of the island of Ulleungdo and 44 smaller islands located in the Sea of Japan, including the Liancourt Rocks (Dokdo) in effective governance by South Korea but claimed by Japan and North Korea). Ulleung County is administratively divided into one eup and two myeon: Ulleung-eup, Buk-myeon, and Seo-myeon, which are divided into 10 legal ri, those into 25 administrative ri, and at the most basic level the county is held to contain 56 "natural villages."