[n 2] The constituency retained its name but with its boundaries altered, as part of the 2023 Periodic Review of Westminster constituencies and under the June 2023 final recommendations of the Boundary Commission for Wales for the 2024 United Kingdom general election.

1997–2010: The Borough of Newport wards of Alway, Beechwood, Langstone, Llanwern, Lliswerry, Ringland, St Julians, and Victoria, and the Borough of Monmouth wards of Caldicot Castle, Dewstow, Magor with Undy, Rogiet, Severn, and West End.

2010–2024: The Newport County Borough electoral divisions of Alway, Beechwood, Langstone, Llanwern, Lliswerry, Ringland, St Julian's, and Victoria, and the Monmouthshire County electoral divisions of Caldicot Castle, Dewstow, Green Lane, Mill, Rogiet, Severn, The Elms, and West End.

2024–present: The Newport City Council electoral wards of Alway, Beechwood, Bettws, Bishton & Langstone, Caerleon, Llanwern, Lliswerry, Malpas, Pillgwenlly, Ringland, St Julians, Stow Hill and Victoria.

There have been only minor boundary changes since the constituency was created, and unlike the neighbouring Newport West, has remained Labour since its creation.