Newton Aycliffe and Spennymoor (UK Parliament constituency)

Newton Aycliffe and Spennymoor is a constituency of the House of Commons in the UK Parliament. Following the completion of the 2023 Periodic Review of Westminster constituencies, it was first contested at the 2024 general election. The seat was won by Alan Strickland MP of Labour, with a majority of 18,394 and a vote share of 46.2%.

Boundaries
The constituency is composed of the following electoral divisions of County Durham (as they existed on 1 December 2020):


 * Aycliffe East; Aycliffe North and Middridge; Aycliffe West; Bishop Middleham and Cornforth; Chilton; Coxhoe; Ferryhill; Sedgefield; Spennymoor; Trimdon and Thornley (polling districts SKB, SLA, SLB, SMB and SMC); Tudhoe.

The seat is made up of the bulk of the abolished constituency of Sedgefield, expanded to include Spennymoor and Tudhoe from Bishop Auckland, and Coxhoe from City of Durham.

History
Most of this zone was in Sedgefield (abolished), re-created in 1983, most famously represented by former Labour Prime Minister Tony Blair from 1983 to 2007; who led a successful campaign for his party to win the 1997 general election in a landslide and thereafter served for ten years as prime minister, leading the campaigns at two subsequent general elections. Blair was the first Prime Minister to lead the Labour Party to three consecutive victories. He resigned as the Member of Parliament for Sedgefield on the same day as he resigned as prime minister, which triggered a by-election.

Members of Parliament
Sedgefield prior to 2024

Elections in the 2020s

 * Paul Howell (Conservative) ― Incumbent MP for Sedgefield