Question: how to get brgy id?
Answer: Go to your place's Barangay Hall. Inform the officer that you are applying for a Barangay Clearance.
State the reason why you need a Barangay Clearance (ID requirement, employment, Postal ID, etc.).
Present your Cedula. ... 
Pay the application and processing fees.
Wait for your Barangay Clearance to be released.