The Conservatives candidate in Chichester is expected to be just the third female MP elected in West Sussex.
Andrew Tyrie, Tory MP for the area since 1997, announced he would not be standing for re-election this year.
Gillian Keegan, a Chichester district councillor, was then chosen by the Chichester Conservative Association as its candidate for the snap general election.
Back in 2015 Mr Tyrie had a majority of more than 25,000 votes, with more than 57 per cent of total votes cast.
Since Chichester is viewed as a safe Tory seat, Mrs Keegan is expected to be elected when the results are announced early tomorrow morning.
She would join Labour’s Laura Moffatt, Labour MP from 1997-2010, and Conservative Evelyn Emmett, who represented East Grinstead from 1955-65, as the only women elected to Parliament in West Sussex.
For full coverage from the Chichester election count including results and reaction, follow our live blog throughout the night.