RBS has announced that the Reigate branch of NatWest, in the High Street, will close on 5 June 2018.
The move is part of a UK-wide reduction involving the closure of 197 NatWest branches, and 62 Royal Bank of Scotland branches.
RBS says the number of people using its branches has fallen by 40% since 2014, with a rise in mobile and online banking.
The bank has put together information sheets on where people can find alternative facilities and ATMs, and will also be writing to affected customers.
After the closure of the Reigate branch, the nearest ones will be in Redhill, Dorking and Crawley (Manor Royal).
Apart from Reigate, the only other branch in the borough affected is Horley, which will close on 26 June.
Information sheets for each affected branch
BBC article about the closures with union reaction