In the Philippines , the term barrio once referred to a rural village .
Barrio was changed by law in 1975 to the term barangay , the basic unit of government with an average population of 2,500 people .
In the Philippines , the term barrio once referred to a rural village , but it was changed by law in 1975 to the term barangay , the basic unit of government with an average population of 2,500 people .