Wymondham is a market town and civil parish in the South Norfolk district of Norfolk, England, 12 miles (19 km) south-west of Norwich off the A11 road to London. The River Tiffey runs through. The parish, one of Norfolk's largest, includes rural areas to the north and south, with hamlets of Suton, Silfield, Spooner Row and Wattlefield. It had a population of 14,405 in 2011, of whom 13,587 lived in the town itself.

South Norfolk is a local government district in Norfolk, England. The largest town is Wymondham, and the district also includes the towns of Costessey, Diss, Harleston, Hingham, Loddon and Long Stratton. The council was based in Long Stratton until 2023 when it moved to the Broadland Business Park near Norwich, in the neighbouring Broadland district, as part of a shared facility with Broadland District Council. Some of the district's urban areas form part of the Norwich built-up area. The district also includes numerous villages and surrounding rural areas. Some eastern parts of the district lie within The Broads.