Located in the Northern region of Brazil, bordered by French Guiana
- Population: 861.000
- 16 cities
- Capital: Macapá (south of the State);
- Metropolitan area: Macapá, Santana and Mazagão.
Borders:
- North: French Guiana
- Northwest: Suriname
- East: Atlantic Ocean
- South and West: State of Pará
Climate: equatorial, very humid
Natural Vegetation: 96%.
Protected Areas: 72%.
Area: 143.537 km²
Terrain: mainly low altitude areas