Fremont is a city in and the county seat of Sandusky County, Ohio, United States, located along the banks of the Sandusky River. It is about 35 miles from Toledo and 25 miles from Sandusky. It is part of the Toledo metropolitan area. The population was 16,734 at the 2010 census. The city was the home of Rutherford B. Hayes, who served as President of the United States from 1877 to 1881. The Rutherford B. Hayes Presidential Center was the first presidential library and is one of the focal points of the city. The National Arbor Day Foundation designated Fremont as a Tree City USA.