They were greeted by store manager Tony Breen, Olympic medallist Anyika Onuora and Team GB Taekwondo star Adelaide Barnes, who cut the ribbon at 8am.
The first 30 people were rewarded with bags of free fruit and veg from Aldi’s Super Six range.
The supermarket – which has been built on the former site of the Bay Leaf restaurant in Liverpool Road – is more than 1,700 square metres in size and has created 35 jobs.
Click on the photos below to find out more.
9. Photo Neil Cross; A first look inside the new Aldi store at Tarleton
Aldi runs promotions on 'super six' fruit and vegetables each week Photo: Neil Cross
10. Photo Neil Cross; A first look inside the new Aldi store at Tarleton
The freezer section Photo: Neil Cross
11. Photo Neil Cross; A first look inside the new Aldi store at Tarleton
Photo Neil Cross; A first look inside the new Aldi store at Tarleton Photo: Neil Cross
12. Photo Neil Cross; Team GB Taekwondo star Adelaide Barnes from Penwortham at the new Aldi store at Tarleton
Photo Neil Cross; Team GB Taekwondo star Adelaide Barnes from Penwortham at the new Aldi store at Tarleton Photo: Neil Cross