32568 -- U.S. ZIP code Municipality (1990): WALNUT HILL, Florida All ZIPs for this municipality (1990): 32568 Population (2000): 3225 Housing Units (2000): 1331 Land area (2000): 216.066452 sq. miles (559.609517 sq. km) Water area (2000): 0.156774 sq. miles (0.406043 sq. km) Total area (2000): 216.223226 sq. miles (560.015560 sq. km) Located within: Florida (FL) Location: 30.878449 N, 87.478614 W