The club was established in August 1874. Grantham’s first match was a 2–1 friendly win against Third Lincs Volunteer Rifles on 29 October 1874. In 1877–78, the club became one of the first to enter the FA Cup, playing at home to Clapham Rovers in front of a gate of 650. On 7 April 2012 the club became champions of the Northern Premier League Division One South.
- BetVictor NPL Premier Division, NPL Premier Division
- 2016/17, 2017/18, 2018/19, 2019/20, 2020/21, 2021/22
- South Kesteven Sports Stadium