Lincoln is a cathedral city and district in Lincolnshire, England, of which it is the county town. In the 2021 Census, the Lincoln district had a population of 103,813. The 2021 census gave the urban area of Lincoln, including North Hykeham and Waddington, a recorded population of 127,540.

Lincolnshire is a ceremonial county in the East Midlands and Yorkshire and the Humber regions of England. It is bordered by the East Riding of Yorkshire across the Humber estuary to the north, the North Sea to the east, Norfolk, Cambridgeshire, Northamptonshire and Rutland to the south, and Leicestershire, Nottinghamshire and South Yorkshire to the west. The county town is the city of Lincoln. Lincolnshire is the second largest county in England after North Yorkshire.