Lincoln (UK Parliament constituency)

Lincoln is a constituency[n 1] in Lincolnshire, England represented in the House of Commons of the UK Parliament since 2019 by Karl McCartney, a Conservative Party politician.[n 2]

Borough constituency
for the House of Commons
Boundary of Lincoln in Lincolnshire
Location of Lincolnshire within England
Electorate72,662 (December 2010)[1]
Major settlementsLincoln
Current constituency
Member of ParliamentKarl McCartney (Conservative)
Number of membersTwo until 1885, then one

Since the split of the seat City of York with effect from the 2010 general election, Lincoln has been the oldest constituency in continuous existence in the UK – established in 1265. Lincoln was a bellwether between 1974 and 2017. The seat bucked the national Conservative victory in 1970 by electing a Labour MP, as it did in 2017.

The seat has been considered relative to others an ultra-marginal seat, as well as a swing seat, since 2005 as its winner's majority has not exceeded 6.9% of the vote since the 12.5% majority won in 2005 and the seat has changed hands three times since that year.