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About Us

About Cornellier Superstore

The Cornelliers have been running businesses in Beloit, Wisconsin since 1971. The Cornellier Superstore has offered the Stateline area a large variety of unique and specialty items for over ten years! We are a Shell gas station, but are much, much more than that!  We specialize in Wisconsin-made products; cheeses, meats, jams, honey, cranberry items, wine, Wisconsin craft beer, gifts, souvenirs, sports memorablia, and much more!

We also have all your convenience needs for those on the go, including gas to make it your one stop specialty shop! We even carry top of the line fireworks to help you celebrate any occasion.

Our Mission
We will provide friendly, professional service and information to all customers that walk through our doors, in a safe, clean, respectable atmosphere that enhances their shopping experience while getting unique and quality products at an affordable price. Our guests can expect a relaxing visit whether it is in person, on the phone or on our website. We love what we do, so we work hard to create a memorable experience that will keep everyone coming back again and again!

Company Overview
Cornellier Fireworks Company was first started in 1971 with one small fireworks stand in Beloit, WI. In 1976 Larry Cornellier SR. bought out a wholesaler from Poynette, WI. This business grew very rapidly and a new location was built in Beloit in 1980 and again in Hudson, WI in 1982. It was decided to build a store in Illinois, which is called Stateline Fireworks. The most recently built facility, Cornellier Superstore which was built in 1995.

We have a huge selection of gift items and gourmet foods!

We have a huge selection of gift items and gourmet foods!


The biggest selection of Fireworks in the area!

The biggest selection of Fireworks in the area!

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