Calder Valley.

Calder Valley is a network of Pennine market towns in West Yorkshire, named for the river that threads them together. No single centre dominates: Brighouse is the largest at roughly a third of the seat, followed by Elland and Todmorden, with Ripponden, Mytholmroyd and Hebden Bridge among the smaller communities and a sizeable rural population beyond. The seat is older than average, with a median age of 46, predominantly White, and a degree-educated share a little above a third. Local services are run by a single upper-tier authority covering the wider Calderdale area.

The ward picture is mixed rather than settled. Across the eight most recent contests, Labour took four, the Conservatives three and the Liberal Democrats one, with the larger towns split between the parties and the upper valley leaning Labour on healthy turnouts. At the parliamentary level the seat changed hands in 2024, when Labour won on 44 per cent against a Conservative second place on 26 per cent, a margin of roughly eighteen points. That reversed the comfortable Conservative hold of 2019. Josh Fenton-Glynn, elected for Labour in 2024, has shown no whipped dissent in recent months and speaks most often on the economy, social care and health.

On the figures available the seat now leans Labour, though the divided ward map suggests its towns remain individually contestable rather than uniformly aligned. Recent local coverage has had a broadly civic, administrative character, weighted toward town-centre regeneration and community life rather than political conflict. Taken together, the 2024 swing and the patchwork of ward results describe a constituency that has moved leftward at Westminster while staying competitive locally.