35121 -- U.S. ZIP code Municipality (1990): ONEONTA, Alabama All ZIPs for this municipality (1990): 35121 Population (2000): 14201 Housing Units (2000): 5915 Land area (2000): 145.445775 sq. miles (376.702811 sq. km) Water area (2000): 1.027567 sq. miles (2.661385 sq. km) Total area (2000): 146.473342 sq. miles (379.364196 sq. km) Located within: Alabama (AL) Location: 33.944897 N, 86.458134 W