The real manufacturer of Costco's Kirkland Signature American Vodka, the Kirkland vodka, has been revealed as California-based LeVecke Corporation. The 1.75-liter bottle currently sells in Washington State locations for $15.69. According to records from the U.S. Alcohol and Tobacco Tax and Trade Bureau, the vodka 80-89 proof was registered to the company in Mira Loma, California, in 2012. The company has been operating for seven decades and is now a large producer and bottler of spirits, wine, beer, and ready-to-drink beverages. Despite differences in production methods and sourcing, the two Kirkland vodkas have distinct characteristics that keep each other popular.