(Formerly Mosquito County, 1824-1845)

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Orange County is Florida's 11th county, established on December 29, 1824, from a segment of St. Johns County. It was originally named Mosquito county after the name the Spanish had given the entire coast, "Los Mosquitos." On January 30, 1845, the Territorial Council approved the name change to Orange County, after all the orange groves in the area. Orlando is the county seat.