There are 23 US Post Offices in Lake County serving a total of 336,260 residents equating to 14,620 residents per post office. It's estimated that approximately 536,708 packages are handled across the 23 county post offices annually. Lake County is a county located in the U.S. state of Florida. As of the 2010 census, the population was 297,052. Its county seat is Tavares, and its largest city is Clermont. Lake County is included in the Orlando-Kissimmee-Sanford, FL Metropolitan Statistical Area."