The Indian store in the film Zombieland doesn't exist but the grocery store, Kemosabe casino & trading post are real.
Here are the Zombieland Filming Locations, courtesy of IMDb:
490 West Paces Ferry Rd, Atlanta, Georgia, USA
Valdosta, Georgia, USA
Newnan, Georgia, USA
Powder Springs, Georgia, USA
One Park Place B5, Atlanta, Georgia, USA
Morrow, Georgia, USA
Rutledge, Georgia, USA
Atlanta, Georgia, USA
Atlanta Motor Speedway - 1500 Tara Place, Hampton, Georgia, USA
Decatur, Georgia, USA
Hapeville, Georgia, USA
Highway 20, Hampton, Georgia, USA
Hollywood Boulevard, Hollywood, Los Angeles, California, USA
Los Angeles, California, USA
Zombieland tells a story about shy student trying to reach his family in Ohio, a gun-toting tough guy, and a pair of sisters trying to get to an amusement park, they all join forces to travel across a zombie-filled America.
The movie starred Jesse Eisenberg, Emma Stone and Woody Harrelson. See full cast and crew at IMDb.