Adur (/eɪˈdʊər/) is a local government district in West Sussex, England. It is named after the River Adur which flows through the area. The council is based in the town of Shoreham-by-Sea, and the district also contains the town of Southwick, the large village of Lancing and a modest rural hinterland inland. The district had a population of 64,626 at the 2021 census.

Sompting, Lancing, Shoreham and Southwick form a strip of settlements on the south coast, between Worthing and Brighton collectively known as the Brighton/Worthing/Littlehampton conurbation. Shoreham Airport is located in the Adur district, west of Shoreham-by-Sea and just east of Lancing.

The Adur Festival is held in the first two weeks of June every year.

The district lies on the south coast, and parts of its area lie within the South Downs National Park. The neighbouring districts are Worthing, Arun, Horsham and Brighton and Hove.

The district was formed on 1 April 1974 under the Local Government Act 1972. The new district covered the whole area of two former districts and parts of a third, which were all abolished at the same time:^[2]

• Shoreham-by-Sea Urban District
• Southwick Urban District
• Worthing Rural District (parishes of Coombes, Lancing and Sompting only, rest went to Arun)

The new district was named Adur after the River Adur which flows through the area and reaches the sea at Shoreham.^[3]

Since 2008 Adur District Council has worked in partnership with neighbouring Worthing Borough Council, as Adur and Worthing Councils, sharing a joint management structure, with a single chief executive.^[4]

Adur District Council provides district-level services. County-level services are provided by West Sussex County Council. Parts of the district are covered by civil parishes, which form a third tier of local government for their areas.^[6][7]

There are three civil parishes in the district, being Coombes, Lancing, and Sompting. Coombes has a parish meeting rather than a parish council due to its low population.^[15] The rest of the district, corresponding to the area of the pre-1974 urban districts of Shoreham-by-Sea and Southwick, is an unparished area.^[7]

• Lancing F.C.
• Shoreham F.C.
• Southwick F.C.
• Lancing Utd F.C.

In terms of television, Adur is served by BBC South East and ITV Meridian broadcasting from the Whitehawk Hill transmitter. ^[16]

Radio stations for the area are BBC Radio Sussex, Heart South, Capital Brighton, More Radio Worthing and Seaside Hospital Radio that broadcast from the Southlands Hospital in Shoreham.

Local newspapers are the Shoreham Herald, West Sussex Gazette and The Argus. ^[17]

Adur is twinned with

• Żywiec, Poland^[18]
• Riom, France^[19][20]

Climate in this area has mild differences between highs and lows, and there is adequate rainfall year-round. The Köppen Climate Classification subtype for this climate is "Cfb" (Marine West Coast Climate/Oceanic climate).^[21]

• Adur and Worthing Councils
• Listed buildings in Adur
• List of places of worship in Adur
• Lancing
• Shoreham-by-Sea
• Southwick
• Sompting