The area of Niawa Lenga Chiefdom includes 241 km2, derived from geospatial data.

[1] The neighbour chiefdoms of Niawa Lenga are: Valunia (north), Komboya (northeast), Bagbwe (east), Kakua (south) and Selenga (west).

According to the 2015 census 13.955 people lived in Niawa Lenga chiefdom, 6.789 males and 7.166 females.

Nengbema and other villages east of it like Nyandeama, Tondoya and Blama, all within the Lower Niawa Section, are located at the highway.

The current chief is George Gbaniey Njiabo, elected by the eligible councillors of the chiefdom on December 7, 2002.