Wanderlust World Wanderlust World According to the 2021 UK Census, the population of the Sevenoaks District in Kent, England, is 120,479. The town of Sevenoaks itself has approximately 29,000–30,000 residents.
The district figure (120,479) covers the entire local authority area—roughly 142 square miles encompassing the town of Sevenoaks plus Swanley, Westerham, Edenbridge, Otford, Kemsing, and numerous villages and hamlets.
The 2011 Census figure of 58,198 cited in older sources refers to the built-up area subdivision definition, which draws boundaries differently. The 2021 district-level count is the current official statistic for local government purposes.
Sevenoaks is a affluent commuter district on London's southeastern fringe, 21 miles from Charing Cross. Population has grown steadily (~8% since 2011) driven by rail connectivity, high-performing schools, and green belt constraints limiting sprawl.