Rajvir Gill, who runs the MS2 shop in Eastern Avenue, Chippenham, with her husband Sat was co-opted onto the town council last night.
The other candidates for the vacancy on the Monkton ward were Peter Abraham, Edward Barham and Anthony Milner.
Independent councillor Chris Caswill said: "I am delighted that the town council have co-opted Mrs Raj Gill as a member for the Monkton ward, which I represent on Wiltshire Council.
"At her MS2 shop she is at the heart of the local community and knows a large number of local residents by name and talks to them on a daily basis.
"Her involvement with the town council helps bring the council closer to the local community and the everyday interests of local people into the council chamber. I very much look forward to working with her."
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