1885–1918: The Borough of Basingstoke, and the Sessional Divisions of Basingstoke and Odiham.
1918–1950: The Boroughs of Basingstoke and Andover, and the Rural Districts of Andover, Basingstoke, Kingsclere, Stockbridge, and Whitchurch.
1950–1955: The Boroughs of Basingstoke and Andover, the Rural Districts of Andover, Basingstoke, and Kingsclere and Whitchurch, and in the Rural District of Romsey and Stockbridge the parishes of Ashley, Bossington, Broughton, Buckholt, East Tytherley, Frenchmoor, Houghton, King's Somborne, Leckford, Little Somborne, Longstock, Nether Wallop, Over Wallop, Stockbridge, and West Tytherley.
1955–1974: The Boroughs of Basingstoke and Andover, and the Rural Districts of Andover, Basingstoke, and Kingsclere and Whitchurch.
1974–1983: The Borough of Basingstoke, the Rural Districts of Basingstoke, and Kingsclere and Whitchurch, and in the Rural District of Hartley Wintney the parishes of
Bramshill,
Dogmersfield,
Eversley,
Greywell,
Hartley Wintney,
Heckfield,
Hook,
Long Sutton,
Mattingley,
Odiham,
Rotherwick,
South Warnborough, and
Winchfield. Note: among these Hook was by 1983 commonly considered a town.
1983–1997: The Borough of Basingstoke and Deane wards of Basing, Black Dam, Bramley, Brighton Hill, Buckskin, Chapel, Daneshill, Eastrop, Farleigh Wallop, Kempshott, King's Furlong, Norden, North Waltham, Oakley, Pamber, Popley, Sherborne St John, Sherfield on Loddon, Silchester, South Ham, Upton Grey, Viables, Westside, and Winklebury.
1997–2010: The Borough of Basingstoke and Deane wards of Basing, Brighton Hill, Brookvale, Buckskin, Calleva, Chineham, Eastrop, Grove, Hatch Warren, Kempshott, Norden, Popley, South Ham, Upton Grey, and Winklebury.
2010–2024: The Borough of Basingstoke and Deane wards of Basing, Brighton Hill North, Brighton Hill South, Brookvale and King's Furlong, Buckskin, Chineham, Eastrop, Grove, Hatch Warren and Beggarwood, Kempshott, Norden, Popley East, Popley West, Rooksdown, South Ham, and Winklebury.
2024–present: Further to the
2023 Periodic Review of Westminster constituencies, which came into effect for the
2024 general election, the constituency is composed of the following (as they existed on 1 December 2020): • The Borough of Basingstoke and Deane wards of: Brighton Hill; Brookvale & Kings Furlong; Chineham; Eastrop & Grove; Hatch Warren & Beggarwood; Kempshott & Buckskin; Norden; Oakley & The Candovers (polling districts OC01, OC03, OC04, OC05, OC06, OC07, OC08, OC09 and OC11); Popley; South Ham; Winklebury & Manydown.
To bring the electorate within the permitted range, Old Basing was transferred to North East Hampshire. The suburb of Rooksdown was transferred to North West Hampshire in exchange for the village of Oakley. ==Members of Parliament==