There are 14 US Post Offices in Sarasota County serving a total of 218,002 residents equating to 15,572 residents per post office. It's estimated that approximately 347,956 packages are handled across the 14 county post offices annually. Sarasota County is a county located in the U.S. state of Florida. As of the 2010 census, the population was 379,448. Its county seat is Sarasota, and its largest city is Sarasota. A majority (over 60%) of Sarasota County's residents live in unincorporated areas outside of its four municipalities. Sarasota County is included in the North Port-Sarasota-Bradenton, FL Metropolitan Statistical Area."