West Dunbartonshire.

West Dunbartonshire sits on the north bank of the Clyde to the west of Glasgow, a band of riverside towns rather than a single dominant centre. Clydebank and Dumbarton anchor the seat, with smaller communities along the Leven and the Kilpatrick fringe filling out a built-up, post-industrial belt. Its population of around 91,000 has a median age of 44, a little older than the Scottish average. Local services are split across two Scottish unitary councils: West Dunbartonshire, which covers six of the seat's wards, and Glasgow City, which runs a single eastern ward.

The recent ward picture leans toward Labour, which has taken the most of the 23 most-recent contests across the area, ahead of the Scottish National Party, with one ward held by the West Dunbartonshire Community Party. Most of those wards were last contested in May 2022, so the direction-of-travel is read partly through older results and a 2024 by-election in Clydebank Central that Labour took. The parliamentary swing has been sharp: the SNP won the seat in 2019 on roughly half the vote, but Labour reclaimed it in 2024 on 48.8 per cent, pushing the SNP to 33.6 per cent. Douglas McAllister has held the seat for Labour since that election, with no whipped dissent recorded in recent months.

On the figures available, the seat appears to have moved firmly back toward Labour without settling into a fixed pattern, given how recently the SNP held it at both Holyrood-adjacent and Westminster level. Recent local coverage has had a steady, administrative character, dominated by council budget-setting, a council-tax rise to close a funding gap, and modest regeneration and housing schemes rather than national controversy. The contest between Labour and the SNP looks live rather than resolved, leaving the seat competitive on present evidence.