The by-election will take place on Thursday August 4 for residents of the Westholme Ward on the Town Council.
The three candidates are:
Nadim Aziz – The Conservative Party; Paul Coyne – Independent; Alison Snookes – Lincolnshire Independents, Sleaford.
Polling stations in the ward will be open between 7am and 10pm.
Further information on registering to vote can be found on the Electoral Commission’s website at www.electoralcommission.org.uk/i-am-a/voter