For stunning size 12 formal dresses, count on Terry Costa, Dallas' largest prom and homecoming store. You'll find an unmatched selection of size 12 homecoming dresses from designers like Sherri Hill, La Femme, Hannah S. and more. No matter the length, color, or style, savvy shoppers know they can find the perfect size 12 formal dress for their occasion at Terry Costa. We stay plugged in to the latest trends so we can offer you the hottest, most wanted silhouettes, colors, and styles. Shop online or peruse our selection of size 12 homecoming dresses today for the best selection.