Grantham is a market town in the South Kesteven district of Lincolnshire, England, situated on the banks of the River Witham and bounded to the west by the A1 road. It lies 23 miles south of Lincoln and 22 miles east of Nottingham. The population in 2016 was put at 44,580. The town is the largest settlement and the administrative centre of South Kesteven District.
Grantham railway station is on the East Coast Main Line, serving the market town of Grantham, Lincolnshire, England. It is 105 miles 38 chains down the line from London King's Cross and is situated on the main line between Peterborough to the south and Newark North Gate to the north.