1885–1918 • The
petty sessional divisions of Abingdon,
Faringdon,
Wallingford, and
Wantage; • The
municipal borough of Wallingford; and • The parts of the municipal boroughs of Abingdon and Oxford in Berkshire.
1918–1950 • The
rural district of
Abingdon (the civil parishes of Abingdon St Helen Without, Appleford, Appleton-with-Eaton, Besselsleigh, Cumnor, Draycot Moor, Drayton, Frilford, Fyfield, Garford, Kingston Bagpuize, Lyford, Marcham, Milton, North Hinksey, Radley, South Hinksey, Steventon, Sunningwell, Sutton Courtenay, Sutton Wick, Tubney, Wootton, and Wytham); • The rural district of
Wallingford (the civil parishes of Aston Tirrold, Aston Upthorpe, Brightwell-cum-Sotwell, Cholsey, Didcot, East Hagbourne, Little Wittenham, Long Wittenham, Moulsford, North Moreton, South Moreton, and West Hagbourne); • The rural district of
Wantage (the civil parishes of Aldworth, Ardington, Beedon, Blewbury, Brightwalton, Catmore, Chaddleworth, Childrey, Chilton, Compton, Denchworth, East Challow, East Hanney, East Hendred, East Ilsley, Farnborough, Fawley, Goosey, Grove, Hampstead Norris, Harwell, Hermitage, Letcombe Bassett, Letcombe Regis, Lockinge, Peasemore, Sparshlt, Upton, West Challow, West Hanney and West Hendred, and West Ilsley); • The part of the
rural district of Bradfield which consisted of the
civil parishes of
Ashampstead,
Basildon,
Frilsham,
Streatley, and
Yattendon; • The part of the
rural district of Faringdon which was within the administrative county of Berkshire (the civil parishes of Ashbury, Baulking, Bourton, Buckland, Buscot, Charney Bassett, Coleshill, Compton Beauchamp, Eaton Hastings, Fernham, Great Coxwell, Great Faringdon, Hatford, Hinton Waldrist, Kingston Lisle, Little Coxwell, Littleworth, Longcot, Longworth, Pusey, Shellingford, Stanford in the Vale, Uffington, Watchfield, and Woolstone); • The municipal boroughs of Abingdon and Wallingford; and • The
urban district of Wantage. ''The constituency's boundaries were adjusted slightly by the
Representation of the People Act 1918, gaining a small part of the Newbury Division. It was redefined in terms of the administrative county of Berkshire and the county districts created by the Local Government Acts of
1888 and
1894.''
1950–1974 • The boroughs of Abingdon and Wallingford; • The urban district of Wantage; and • The rural districts of Abingdon, Faringdon, Wallingford and Wantage.
Under the Representation of the People Act 1948, Abingdon was altered marginally, with the part of the rural district of Bradfield being transferred to Newbury. 1974–1983 As above. The constituency was not altered by the
Parliamentary Constituencies (England) Order of 1970, but was slightly amended prior to the
February 1974 general election to take account of changes to local government boundaries. As a result of the constituency boundary changes introduced at the
1983 general election, the Abingdon constituency was divided; most of its electors were placed in the new
Wantage constituency and a significant minority including electors in the town of Abingdon were placed in the
Oxford West and Abingdon constituency. A small part to the south of the constituency had been retained within Berkshire and this area was transferred to
Newbury. ==Members of Parliament==