There is some debate about the origin of the village's name; one theory is that there were once two villages named Clawson and Claxton, which grew together and became Long Clawson. The “Long” in Long Clawson may have arisen from it being over a mile in length, although the main road through the village has 14 sharp bends.
Situated in the Vale of Belvoir, the village is surrounded by farmland with rich soil ideal for pasture. Milk from local dairy farms is used for production of Stilton cheese. The Long Clawson dairy is one of the largest producers of this cheese.
The village features in the 1086 Domesday Book as Clachestone, but there is evidence of much earlier settlements. Embedded into the tarmac footpath against the wall of the Manor House is an ancient megalith. The Long Clawson Stone is approximately 3 feet long and allegedly a fragment of a larger ancient stone. The Manor House itself has an ancient fish pond that is still stocked.
Local demographic information shows the population to be 970 as of 2003.
Long Clawson was one of three civil parishes which joined together in 1936 to make the single parish of Clawson and Harby which exists today. It had been an ancient or ecclesiastical parish and, since 1866, a civil parish in Melton Mowbray Rural District.
The parish was part of Melton Mowbray Rural District from 1894 until 1935 when the rural district was abolished and replaced by the Melton and Belvoir Rural District which covered a larger area. A year after the introduction of the new rural district its parishes were reorganized and reduced in number from 68 to 25.
In 1974 a new nationwide organization of local government was introduced in which rural and urban districts were replaced by "non-metropolitan" districts. In the northeast of Leicestershire this meant little save for the fact that the principal town of Melton Mowbray, formerly a separate urban district, was now governed by the same body (Melton District or Borough) as the rural area that surrounded it.
Maps on the place-pages for Belvoir Rural District and Melton and Belvoir Rural District illustrate the location of the various parishes and the geographical and administrative changes that occurred in 1936.