Silver Lake is a census-designated place in Lake County, Florida, United States. The population was 1,879 at the 2010 census. It is part of the Orlando–Kissimmee Metropolitan Statistical Area. Silver Lake is located in central Lake County and is bordered to the south by the city of Leesburg. U.S. Route 441 runs just south of Silver Lake, leading west 5 miles t…Silver Lake is a census-designated place in Lake County, Florida, United States. The population was 1,879 at the 2010 census. It is part of the Orlando–Kissimmee Metropolitan Statistical Area. Silver Lake is located in central Lake County and is bordered to the south by the city of Leesburg. U.S. Route 441 runs just south of Silver Lake, leading west 5 miles to the center of Leesburg and east the same distance to Tavares, the Lake county seat.