Orange Park is a town in Clay County, Florida, United States, and a suburb of Jacksonville. The population was 8,412 at the 2010 census. The name "Orange Park" is additionally applied to a wider area of northern Clay County outside the town limits, covering such communities as Fleming Island, Lakeside, and Bellair-Meadowbrook Terrace.The town's name reflects the hope of its founders for a fruit-growing industry, but their crops were destroyed in the Great Freeze of 1894–95. Despite recovery elsewhere, the crops never came back to Orange Park.