Port Jefferson, OH -- U.S. village in Ohio Population (2000): 321 Housing Units (2000): 128 Land area (2000): 0.153974 sq. miles (0.398791 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.153974 sq. miles (0.398791 sq. km) FIPS code: 64262 Located within: Ohio (OH), FIPS 39 Location: 40.330423 N, 84.090979 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Port Jefferson, OH Port Jefferson