The news comes after Centra Culmore, which housed the previous post office, closed permanently in March after more than 30 years of trading.
The new Post Office will open on Friday, September 16 from 1pm at a local Spar store on Ballynagard Road.
Meanwhile, Deputy Mayor of Derry and Strabane, SDLP councillor Angela Dobbins, who campaigned to retain a post office locally , said: “I am delighted to receive confirmation this morning from Post Office that their service at Culmore will reopen at 1pm on Friday 16th September 2022 at the new location of Spar, Unit 2 Ballynagard Road.
“Following public consultation, the desire to keep this service in the Culmore area was clear. I’m glad that my negotiations with stakeholders in recent months and a subsequent petition to save the service, have led to a successful outcome.”