Gainza

', officially the ' (; ), is a in the province of , . According to the , it has a population of people.
Barangays.
Gainza is politically subdivided into 8 barangays:
Demographics.
In the , the population of Gainza, Camarines Sur, was people, with a density of .
Economy.
Majority of the land is devoted to rice, vegetables and other root crops.