AFC Sudbury was formed on 1st June 1999 from the amalgamation of Sudbury Town (founded 1885) and Sudbury Wanderers (founded 1958). The Club's teams play their fixtures at The Wardale Williams Stadium, Sudbury, Suffolk with a capacity of 2500.

In 1999/2000 the Reserve team won the Essex & Suffolk Border League Premier Title, following this in 2000/2001 they won the Essex & Suffolk Border League Cup.

In 2005/2006 they won the Ridgeons Reserve League Southern Division title, but finished as Runners Up in the play off against the Northern Division Winners. They did however win the Suffolk Junior Cup.

In 2007/2008 they finished Runners Up in the Ridgeons Reserve League Southern Division. The following season (08/09) they finished mid-table but won the Chell Trophy.

In 2010/2011 they finished 3rd in the Ridgeons Reserve League and lost in the final of the Suffolk Senior Reserves Cup.

2013/2014 saw the Reserve Team elected to the Thurlow Nunn League First Division, and in 2014/2015 Danny Laws and his team took charge of the Reserve/U21 and U18 teams. The Reserves finished 14th in the League that season and won the Thurlow Nunn First Division KO Cup.

The last relevant season (2018/19) saw them finish in mid-table.