33401 -- U.S. ZIP code Municipality (1990): WEST PALM BEACH, Florida All ZIPs for this municipality (1990): 33401 33405 33407 33412 33413 33414 Population (2000): 20510 Housing Units (2000): 11310 Land area (2000): 5.243868 sq. miles (13.581556 sq. km) Water area (2000): 0.148770 sq. miles (0.385312 sq. km) Total area (2000): 5.392638 sq. miles (13.966868 sq. km) Located within: Florida (FL) Location: 26.711192 N, 80.060439 W