Cade is a census-designated place (CDP) in St. Martin Parish, Louisiana, United States. As of the 2014 census, Cade has a population of 1,188 The zip code is: 70519. The site has a long history. It was founded and named after Captain Cade, who was the long time sheriff of New Iberia. It is now home to the Episcopal School of Acadiana, Bruce Foods, Spanish Trail Golf Course, and The Pines Ranch (Louisiana's first organic ranch). The town consists of 6.63 square miles located in south-central Louisiana in St. Martin Parish. Cade does not have a police station, or hospital. The crime and unemployment rate are low in Cade compared to the U.S. average. The median house value is $100,000, and the cost of living is 16.50% lower than the U.S average.