Centre points of the United Kingdom

There has long been debate over the exact location of the geographical centre of the United Kingdom, and its constituent countries, due to the complexity and method of the calculation, such as whether to include offshore islands, and the fact that erosion will cause the position to change over time. There are two main methods of calculating this "centre": either as the centroid of the two-dimensional shape made by the country (projected to the Airy ellipsoid then flattened using the Transverse Mercator projection), or as the point farthest from the boundary of the country (either the sea, or, in the case of constituent countries, a land border). These two methods give quite different answers.

The town of Haltwhistle in Northumberland has banners stating that it is the "Centre of Britain". By another calculation the centre can also be said to be Dunsop Bridge, Lancashire (historically in the West Riding of Yorkshire), 71 miles (114 km) to the south.

For centuries the parish of Meriden to the west of Coventry has claimed to be the geographical centre of England, and there has been a stone cross there commemorating the claim for at least 500 years. The justification is that the point farthest from the sea is in the parish.Morton, Derbyshire also claims to be the centre of England as it is not only mid-way along England's longest north-south axis, but also midway between the east coast and the Welsh border. Claims are also made for a tree, the Midland Oak, on the boundary between Lillington and Leamington Spa, Warwickshire, although the basis for these claims is not clear.

...
Wikipedia