noun
branch office; local office
Refers to a subordinate office of a larger organization, especially government agencies, post offices, or public institutions. Not typically used for private company branches (支店 is more common there).
郵便局の分局が駅の近くにある。
There is a branch post office near the station.
税務署の分局で確定申告の相談ができる。
You can get advice on your tax return at the local tax office branch.