1983–1997: The Borough of Test Valley wards of Abbey, Blackwater, Chilworth and Nursling, Cuppernham, Field, North Baddesley, Romsey Extra, and Tadburn, and the District of New Forest wards of Blackfield and Langley, Colbury, Dibden and Hythe North, Dibden Purlieu, Fawley Holbury, Hythe South, Marchwood, Netley Marsh, Totton Central, Totton North, and Totton South.
1997–2010: The Borough of Test Valley wards of Abbey, Blackwater, Chilworth and Nursling, Cuppernham, Dun Valley, Field, Harewood, Kings Somborne and Michelmersh, Nether Wallop and Broughton, North Baddesley, Over Wallop, Romsey Extra, Stockbridge, and Tadburn, the Borough of Eastleigh wards of Chandler's Ford, Hiltingbury East, and Hiltingbury West, and the City of Southampton ward of Bassett. The constituency was approximate to the
Test Valley district of
Hampshire and covered a smaller area as parts of the north of Test Valley fell into part of the
North West Hampshire seat to roughly ensure equal size electorates (low
malapportionment). The main town within the constituency was
Romsey. ==History==