1885–1918: The Sessional Divisions of Forehoes, Guiltcross and Shropham, and Mitford and Launditch. The constituency was created from parts of the Southern Division of Norfolk and parts of the abolished Eastern Division. The main settlements were East Dereham and Wymondham. On abolition, southern areas, including Wymondham, were returned to the Southern Division and northern areas, including East Dereham, were transferred to the South-Western Division. 1983–1997: The District of Breckland wards of Beetley and Gressenhall, East Dereham Neatherd, East Dereham St Withburga, East Dereham Toftwood, East Dereham Town, Eynsford, Hermitage, Launditch, Mattishall, Shipworth, Springvale, Swanton Morley, Taverner, Two Rivers, Upper Wensum, and Upper Yare, and the District of Broadland wards of Acle, Aylsham, Blofield, Brundall, Burlingham, Buxton, Cawston, Coltishall, Drayton, Foulsham, Freethorpe, Great Witchingham, Hainford, Hevingham, Horsford, Plumstead, Rackheath, Reedham, Reepham, South Walsham, Spixworth, St Faiths, Taverham, and Wroxham. Eastern areas were transferred from Yarmouth, central areas from North Norfolk and western areas from South West Norfolk. 1997–2010: The District of Breckland wards of Beetley and Gressenhall, East Dereham Neatherd, East Dereham St Withburga, East Dereham Toftwood, East Dereham Town, Eynsford, Hermitage, Launditch, Mattishall, Shipworth, Springvale, Swanton Morley, Taverner, Two Rivers, Upper Wensum, and Upper Yare, and the District of Broadland wards of Acle, Aylsham, Blofield, Brundall, Burlingham, Buxton, Cawston, Coltishall, Foulsham, Freethorpe, Great Witchingham, Hainford, Hevingham, Horsford, Plumstead, Rackheath, Reedham, Reepham, South Walsham, Spixworth, St Faiths, and Wroxham. The District of Broadland wards of Drayton and Teversham were transferred to Norwich North. 2010–present: The District of Breckland wards of All Saints, Buckenham, Burgh and Haverscroft, Dereham Central, Dereham Humbletoft, Dereham Neatherd, Dereham Toftwood, Eynsford, Haggard De Toni, Hermitage, Launditch, Necton, Queen’s, Shipdham, Springvale and Scarning, Swanton Morley, Taverner, Templar, Two Rivers, Upper Wensum, Upper Yare, Watton, and Wissey, and the District of South Norfolk wards of Abbey, Cromwells, Hingham and Deopham, Northfields, Rustens, Town, and Wicklewood. Significant changes, with only the District of Breckland wards retained. The District of Broadland wards, which had comprised the majority of the constituency, were included in the new County Constituency of Broadland. Further District of Breckland wards, including Watton and Attleborough, were transferred from South West Norfolk. The District of South Norfolk wards, including Wymondham, were transferred from the constituency of South Norfolk.
General Election 1914/15: Another General Election was required to take place before the end of 1915. The political parties had been making preparations for an election to take place and by the July 1914, the following candidates had been selected;