The parish council has responsibility for local issues, including setting an annual precept to cover the council’s operating costs and producing annual accounts for public scrutiny.
The parish council evaluates local planning applications and works with the local police, district council officers, and neighbourhood watch groups on matters of crime, security, and traffic.
The parish council's role also includes initiating projects for the maintenance and repair of parish facilities, as well as consulting with the district council on the maintenance, repair, and improvement of highways, drainage, footpaths, public transport, and street cleaning.
Conservation matters (including trees and listed buildings) and environmental issues are also the responsibility of the council.

The village falls within the non-metropolitan district of Somerset West and Taunton, which was established on 1 April 2019.
It was previously in the district of West Somerset, which was formed on 1 April 1974 under the Local Government Act 1972, and part of Williton Rural District before that.
The district council is responsible for local planning and building control, local roads, council housing, environmental health, markets and fairs, refuse collection and recycling, cemeteries and crematoria, leisure services, parks, and tourism.
The larger and most expensive local services such as education, social services, libraries, main roads, public transport, policing and fire services, trading standards, waste disposal and strategic planning are the responsibility of Somerset County Council.

As Dunster falls within the Exmoor National Park, some functions normally administered by district or county councils have, since 1997, fallen under the Exmoor National Park Authority, which is known as a 'single-purpose' authority, whose purpose is to "conserve and enhance the natural beauty, wildlife and cultural heritage of the National Parks" and "promote opportunities for the understanding and enjoyment of the special qualities of the Parks by the public", including responsibility for the conservation of the historic environment.

Dunster is the most populous area of the electoral ward named 'Dunster and Timbercombe'.
The ward extends North East to the Bristol Channel and South West to Timberscombe.
The total population at the 2011 Census was 1,219.

It is also part of the Bridgwater and West Somerset county constituency represented in the House of Commons of the Parliament of the United Kingdom.
It elects one Member of parliament (MP) by the first past the post system of election, and is part of the South West England constituency of the European Parliament; the constituency elects seven MEPs using the d'Hondt method of party-list proportional representation.
The parish council has responsibility for local issues, including setting an annual precept to cover the council’s operating costs and producing annual accounts for public scrutiny. The parish council evaluates local planning applications and works with the local police, district council officers, and neighbourhood watch groups on matters of crime, security, and traffic. The parish council's role also includes initiating projects for the maintenance and repair of parish facilities, as well as consulting with the district council on the maintenance, repair, and improvement of highways, drainage, footpaths, public transport, and street cleaning. Conservation matters (including trees and listed buildings) and environmental issues are also the responsibility of the council.
The village falls within the non-metropolitan district of Somerset West and Taunton, which was established on 1 April 2019. It was previously in the district of West Somerset, which was formed on 1 April 1974 under the Local Government Act 1972, and part of Williton Rural District before that. The district council is responsible for local planning and building control, local roads, council housing, environmental health, markets and fairs, refuse collection and recycling, cemeteries and crematoria, leisure services, parks, and tourism. The larger and most expensive local services such as education, social services, libraries, main roads, public transport, policing and fire services, trading standards, waste disposal and strategic planning are the responsibility of Somerset County Council.
As Dunster falls within the Exmoor National Park, some functions normally administered by district or county councils have, since 1997, fallen under the Exmoor National Park Authority, which is known as a 'single-purpose' authority, whose purpose is to "conserve and enhance the natural beauty, wildlife and cultural heritage of the National Parks" and "promote opportunities for the understanding and enjoyment of the special qualities of the Parks by the public", including responsibility for the conservation of the historic environment.
Dunster is the most populous area of the electoral ward named 'Dunster and Timbercombe'. The ward extends North East to the Bristol Channel and South West to Timberscombe. The total population at the 2011 Census was 1,219.
It is also part of the Bridgwater and West Somerset county constituency represented in the House of Commons of the Parliament of the United Kingdom. It elects one Member of parliament (MP) by the first past the post system of election, and is part of the South West England constituency of the European Parliament; the constituency elects seven MEPs using the d'Hondt method of party-list proportional representation.
Dunster