Sinkor is a section of the Monrovia metropolitan area in Liberia. It is the location of the Spriggs Payne Airport. United Nations Mission in Liberia (UNMIL) has its headquarters in Sinkor. Embassies, health facilities, and educational institutions, and non-governmental organizations are also in Sinkor.Tubman Boulevard is the main thoroughfare in Sinkor, which connects the neighborhood to the Capitol Hill area and Monrovia's downtown.