Try the Quilt Haus 515 North 4th St. It's an older home turned into a shop. There is also Bismarck Sewing & Quilting at 1331 E Interstate Ave - Nice store. J&R Sew and Vac on 223 E Main - They are offering fabric for $6.99 yard. At the Gateway Mall on the north side of town there is a Joanns and a Hancocks plus Hobby Lobby is in the same area in a separate building. The south Walmart has fabric but the north one doesn't or didn't the last time I was there. These are the places that I usually hit when I am in town and someone else might have more ideas for you.