Historic

1832–1885: The Hundreds of Gartree (excluding the parishes of Baggrave, Burrough, Knossington, Marefield, Pickwell-cum-Leesthorpe, Ouston, and Newbold-Saucey), Sparkenhoe and Guthlaxton, and the Borough of Leicester and the Liberties thereof.^[2]

Boundaries from the 2010 general election

Following its review of parliamentary representation in Leicestershire, the Boundary Commission for England recommended replacing the Blaby constituency with a new South Leicestershire seat, with some boundary changes. This change occurred for the 2010 general election.

The electoral wards used to create the new constituency are;

• Broughton Astley-Astley, Broughton Astley-Broughton, Broughton Astley-Primethorpe, Broughton Astley-Sutton, Dunton, Lutterworth Brookfield, Lutterworth Orchard, Lutterworth Springs, Lutterworth Swift, Misterton, Peatling, and Ullesthorpe in the Harborough District
• Blaby South, Cosby with South Whetstone, Countesthorpe, Croft Hill, Enderby and St John's, Millfield, Narborough and Littlethorpe, Normanton, North Whetstone, Pastures, Ravenhurst and Fosse, Saxondale, Stanton and Flamville, and Winstanley in the Blaby District^[3]

Proposed

Further to the 2023 Periodic Review of Westminster constituencies, enacted by the Parliamentary Constituencies Order 2023, the composition of the constituency from the next general election, due by January 2025, will be (as they existed on 1 December 2020):

• The District of Blaby wards of: Blaby South; Cosby with South Whetstone; Countesthorpe; Croft Hill; Enderby and St. John’s; Narborough and Littlethorpe; Normanton; North Whetstone; Pastures; Saxondale; Stanton and Flamville.

• The District of Harborough wards of: Bosworth; Broughton Astley-Primethorpe & Sutton; Broughton Astley South & Leire; Dunton; Fleckney; Lutterworth East; Lutterworth West; Misterton; Ullesthorpe.^[4]

The Blaby District wards of Millfield, Ravenhurst and Fosse, and Winstanley (comprising the community of Braunstone Town) will be transferred to the new constituency of Mid Leicestershire. The Harborough District wards of Bosworth and Fleckney will be transferred from Harborough.

Following a local government boundary review in Blaby which came into effect in May 2023,^[5][6] the constituency will now comprise the following from the next general election:

• The District of Blaby wards of: Blaby; Cosby & South Whetstone; Countesthorpe; Enderby; Fosse Highcross; Fosse Normanton; Fosse Stoney Cove; Glen Parva; Narborough & Littlethorpe; North Whetstone; and a small part of Leicester Forest & Lubbesthorpe.

• The District of Harborough wards of: Bosworth; Broughton Astley-Primethorpe & Sutton; Broughton Astley South & Leire; Dunton; Fleckney; Lutterworth East; Lutterworth West; Misterton; Ullesthorpe.^[7]

1832-1885

The constituency was created by the Reform Act 1832 for the 1832 general election, when the two-seat Leicestershire constituency was replaced by the Northern and Southern divisions, each of which elected two MPs.

Both divisions of the county were abolished by the Redistribution of Seats Act 1885 for the 1885 general election, when they were replaced by four new single-seat constituencies: Bosworth, Harborough, Loughborough and Melton.

Prominent members in this period included Thomas Paget (Jnr) (1807–1892) who followed the footsteps of his father in this role (his father having represented Leicestershire) and as partner in Leicester Bank, and Albert Pell, a member of a group of MPs, which included Henry Chaplin, Sir Massey Lopes and Clare Sewell Read, who supported farming interests. He was also a member of the Council of the Royal Agricultural Society of England.

MPs 1832–1885

MPs since 2010

Elections in the 2020s

Elections in the 2010s

* Served as an MP in the 2005–2010 Parliament

Elections in the 1880s

Elections in the 1870s

• Caused by Curzon-Howe succeeding to the peerage, becoming Earl Howe.

Elections in the 1860s

• Caused by Packe's death.

Elections in the 1850s

Elections in the 1840s

Elections in the 1830s

• Caused by Turner's resignation