Laranjal do Jari is a municipality located in the west of the state of Amapá in Brazil. It is the only municipality in the west boundaries of Amapá, except for a small part of Vitória do Jari. Its population is 35,114 and its area is 30,783 km2, which makes it the largest municipality of Amapá.

Amapá ( ) is one of the 26 states of Brazil. It is in the North Region of Brazil. It is the second-least populous state and the eighteenth-largest state by area. Located in the far northern part of the country, Amapá is bordered clockwise by French Guiana to the north for 730 km, the Atlantic Ocean to the east for 578 km, Pará to the south and west, and Suriname to the northwest for 63 km. The capital and largest city is Macapá. The state has 0.4% of the Brazilian population and is responsible for only 0.22% of the Brazilian GDP.