was the village of Biri. Other villages in the municipality included Biri Øverbygd and Biristrand.

Prior to its dissolution in 1964, the 186.3 km2 municipality was the 388th largest by area out of the 689 municipalities in Norway. Biri Municipality was the 277th most populous municipality in Norway with a population of about 3,267. The municipality's population density was 17.5 PD/km2 and its population had decreased