30240 -- U.S. ZIP code Municipality (1990): LA GRANGE, Georgia All ZIPs for this municipality (1990): 30240 Population (2000): 25904 Housing Units (2000): 10366 Land area (2000): 139.760943 sq. miles (361.979166 sq. km) Water area (2000): 1.991093 sq. miles (5.156906 sq. km) Total area (2000): 141.752036 sq. miles (367.136072 sq. km) Located within: Georgia (GA) Location: 33.029838 N, 85.074502 W