The Purdue Research Parks are a network of four research parks located in Indiana, United States. The 725-acre (2.93 km2) flagship West Lafayette park is located less than 2 miles (3 km) north of Purdue University's West Lafayette campus, and is the largest university-affiliated research park in the United States. The other facilities are located in Merrillville, Indianapolis, and New Albany. The parks were developed by the Purdue Research Foundation.