The ceremonial county of Lincolnshire (composed of the 'administrative' counties of Lincolnshire, North Lincolnshire and North-East Lincolnshire) is the second largest of the English counties and one that is predominantly agricultural in character. Despite its relatively large physical area, it has a comparatively small population (of less than 1 million people). The unusually low population density that arises gives the county a very different character to the much more densely populated and urbanised counties of south-east and northern England, and is, in many ways, key to understanding the nature of the county (and perhaps even its people).

Despite the widespread perception of Lincolnshire as a physically rather dull and uniform county, it is often remarked that the Lincolnshire landscape is a place of surprising contrasts that possesses a subtle beauty and quiet charm that is all of its own. Certainly its generally flat landscapes, 'big skies' and comparative emptiness make this a landscape that remains uncommon in the generally densely populated United Kingdom. Although, in terms of overall attractiveness, the county cannot be fairly compared to the more dramatic and scenic, 'tourist friendly' landscapes of nearby Yorkshire, Derbyshire or Norfolk, the Lincolnshire landscape does have much to recommend it to those prepared to get off 'the beaten track' and explore what remains a lesser known and peaceful corner of an increasingly hectic country.

For the purposed of a general geographical classification the county can be broken down into a number of sub-regions:

• Lincolnshire Fens: a region of flat, marshy land (much of it reclaimed from the sea) that predominates in the southern and south-eastern areas of the county (most particularly around the local towns of Boston and Spalding and extending around The Wash to the county border with Norfolk.

• Lincolnshire Wolds: a range of low hills that run broadly south-east through the central and eastern portion of the county.

• The Industrial Humber Estuary and North-East Coast: the major population and industrial centres of northern and North-East Lincolnshire. These include the major fishing port of Grimsby and nearby Immingham (an important centre for the chemical industry) - both towns are on estuary of the River Humber, which flows into the North Sea). Also included is the nearby industrial town of Scunthorpe, a once important steel producing town, but now somewhat in post-industrial decline.

The Greenwich Meridian

The Greenwich Meridian runs through the county. It extends from the Humber estuary between Cleethorpes and Humberstone at ¹ and passes through Louth and Boston before leaving the county south of Gedney Hill at 52° 39′ 49″ N 00° 00′ 00″ W¹.