According to our records, this business is located at 1 Illinois St # 100 in St Charles (in Kane County), Illinois 60174, the location GPS coordinates are: 30.4972278 (latitude), -90.7365805 (longitude). Gramp's Frozen Custard is categorized under Drive-In Restaurants (SIC code 5812). Known organization owner is Roger Brown. Current estimates show that the unit has a sales volume of $320,000 and staff of approximately 8 people. You can contact the company by phone at (630) 762-9480.