Usagara is an administrative ward located within the Tanga City Council of the Tanga Region in Tanzania. The ward covers a total area of 1 km² (0.39 sq mi) and sits at an average elevation of 18 meters (59 ft).
The ward is bordered by several other areas, including Central to the north, Mzingani to the east, and Makorora to the south. To its west, Usagara is encircled by Ngamiani Kusini, Ngamiani Kati, and Ngamiani Kaskazini. According to data from the 2012 census, the ward has a total population of 10,330 residents.