34606 -- U.S. ZIP code Municipality (1990): SPRING HILL, Florida All ZIPs for this municipality (1990): 34606 34607 34608 34609 Population (2000): 24179 Housing Units (2000): 12149 Land area (2000): 11.584012 sq. miles (30.002451 sq. km) Water area (2000): 0.972095 sq. miles (2.517715 sq. km) Total area (2000): 12.556107 sq. miles (32.520166 sq. km) Located within: Florida (FL) Location: 28.470236 N, 82.597418 W