33478 -- U.S. ZIP code Municipality (1990): JUPITER, Florida All ZIPs for this municipality (1990): 33458 33477 33478 Population (2000): 11315 Housing Units (2000): 3829 Land area (2000): 53.254541 sq. miles (137.928623 sq. km) Water area (2000): 0.234805 sq. miles (0.608143 sq. km) Total area (2000): 53.489346 sq. miles (138.536766 sq. km) Located within: Florida (FL) Location: 26.925835 N, 80.215266 W