It is to invest £2.5m in rebranding and refurbishing the stores to be completed in the autumn.
Co-operative Group Chief Executive Peter Marks said: “This is a significant investment in the region for The Co-operative and continues our ambitious programme of growth to sustain market leadership in the convenience sector.
“The stores have great potential and with the benefits we will bring, including our member Share of Profits scheme, we would expect to add significant value to the businesses.”
All staff employed at the stores will be offered employment with The Co-operative Group.

