Further to the completion of the 2023 Periodic Review of Westminster constituencies, the seat was re-established for the 2024 general election,[3] since when it has been held by Alistair Strathern of the Labour Party.

The constituency was established by the Redistribution of Seats Act 1885 (which followed on from the Third Reform Act) as one of four Divisions of the abolished three-member Parliamentary County of Hertfordshire, and was formally named as the Northern or Hitchin Division of Hertfordshire.

The constituency had included a part of the Urban District of Welwyn Garden City, which had been formed as a separate local authority in 1927, and this was now transferred to St Albans.

The following is a projection of what the result of the 2019 general election might have looked like in the Hitchin parliamentary constituency if it had existed.

The political parties had been making preparations for an election to take place from 1939 and by the end of this year, the following candidates had been selected;