Clevedon is located on the Wairoa River five kilometres from its estuary and outflow into the Tamaki Strait, an arm of the Hauraki Gulf. It is 14 kilometres from the centre of the suburb of Manukau, which lies to the northwest. To the south of Clevedon rise the rugged hills of the Hunua Ranges. Several popular beaches are located on the coast close to Clevedon, including Duder's Beach and Kawakawa Bay. Between these two beaches lies the Duder Regional Park.
Clevedon was named for Clevedon, England, in 1866. It was previously known as Te Wairoa (Māori: 'the Long River'). There were formerly many schools located in Clevedon (the Wairoa district) but only one remains, Clevedon School.