The history of the modern day Yuen Long administrative district (despite a few government departments does not map their service area according to the boundary of the District) can be trace back to Yuen Long District Office (previously known as now known as of Home Affairs Department; English name unchanged) of the "New Territories Administration" department of the British colonial government. A reform was held in 1980s that not only the New Territories has their District Offices, but whole HK is grid into Districts, with formal election was held for the councillors of the District Councils. The latest election of the Yuen Long District Council was held in 2019 and scheduled to be held again in 2023.
