Bostwick is an unincorporated community in Putnam County, Florida, United States, located north of the city of Palatka on U.S. Route 17. It hosts the Bostwick Blueberry Festival annually, in May or June.GeographyBostwick is located at.Notable residents Emory H. Price; (December 3, 1899 - February 11, 1976) was a U.S. Representative from Florida. Karl A. Weaver The Weaver Estate Denise Dampier Bernal Former inmate who gained statewide fame for her controversial book, "How to steal more than a man's heart. His happiness, his money, his everything"