District councilThree Rivers is a non-metropolitan district that elects one-third of its councillors every four years and with the fourth year for elections to Hertfordshire County Council. In the 2014 United Kingdom local elections, 2014 elections new ward boundaries came into effect and the council was reduced from 48 to 39 seats. All seats were contested at that election although future elections will continue to be conducted in thirds. The Liberal Democrats (UK), Liberal Democrat administration fell to minority status with the resignation of two councillors from the party, in March and April 2018. Following the 2 May 2019 elections, the composition of the council is:
County councilFor elections to Hertfordshire County Council, the district is divided into six divisions, three of which are held by the Conservatives, two by the Liberal Democrats, and one by Labour:
ParliamentFor Parliament of the United Kingdom, parliamentary elections, the district is divided across three constituencies. Most of the district is within the South West Hertfordshire (UK Parliament constituency), South West Hertfordshire constituency, which is considered a safe Conservative seat and held by a Conservative MP (currently Gagan Mohindra) since its creation in 1950 United Kingdom general election, 1950. The eastern parts of the constituency, to the north and south of Watford, are part of Watford (UK Parliament constituency), that borough's constituency, which is a three-way marginal currently held by Conservative Party (UK), Conservative Dean Russell, having fluctuated between Labour and the Conservatives. Parts of two wards, north of the M25, are in the St Albans (UK Parliament constituency), St Albans constituency, which is currently held by the Liberal Democrat Daisy Cooper.
WardsThree Rivers is composed of thirteen Wards of the United Kingdom, wards, each electing three councillors:
RailTrain services are provided by Chiltern Railways and the Metropolitan line of the London Underground. London Underground stations: *Chorleywood station, Chorleywood *Croxley station, Croxley *Rickmansworth station, Rickmansworth *Moor Park tube station, Moor Park Chiltern Railways stations: *Chorleywood station, Chorleywood *Rickmansworth station, Rickmansworth A Travelcard Zones 7-9, special fare structure exists as the stations are outside the Greater London boundary. London Overground stations: * Carpenders Park railway station, Carpenders Park West Coast Main Line stations: * Kings Langley railway station, Kings Langley
Settlements*Abbots Langley *Chorleywood *Croxley Green *Loudwater, Hertfordshire, Loudwater *Maple Cross *Moor Park, Hertfordshire, Moor Park * Rickmansworth *Sarratt *South Oxhey